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Experience Level
Senior
Qualifications
RequirementsSkills & RequirementsEssential SkillsA minimum of 7 years of experience in web application development, with at least 5 years specifically in Kotlin/Java.
About the job
Join idealo’s Clickout-to-Revenue team in Berlin, where the focus is on building and maintaining systems that help retailers monetize qualified referrals. The team’s work has a direct impact on idealo’s growth by ensuring monetization processes remain reliable and efficient.
Both full-time and part-time arrangements are possible for this Senior Software Engineer position.
What you will do
Design, develop, and operate business and web applications on AWS Cloud.
Take responsibility for the full lifecycle: architecture, infrastructure, development, testing, security, deployment, monitoring, and maintenance.
Build and maintain services that handle processing and billing, integrating with key systems such as Odoo ERP and connecting to Salesforce and SAP.
Work closely with colleagues from accounting, sales, account management, and other engineering teams to deliver solutions that meet changing business needs.
Identify and implement process improvements, maintain high code quality, and pursue ongoing professional growth with support from idealo.
Tech stack
Kotlin
Java
AWS
Odoo ERP
Salesforce and SAP interfaces
Location
This role is based in Berlin, Germany.
About idealo
At idealo, we are dedicated to enhancing the shopping experience by providing the best prices and deals from a wide array of retailers. Our innovative technology and commitment to consumer satisfaction make us a leader in the e-commerce space.
Join idealo’s Clickout-to-Revenue team in Berlin, where the focus is on building and maintaining systems that help retailers monetize qualified referrals. The team’s work has a direct impact on idealo’s growth by ensuring monetization processes remain reliable and efficient. Both full-time and part-time arrangements are possible for this Senior Software Engineer position. What you will do Design, develop, and operate business and web applications on AWS Cloud. Take responsibility for the full lifecycle: architecture, infrastructure, development, testing, security, deployment, monitoring, and maintenance. Build and maintain services that handle processing and billing, integrating with key systems such as Odoo ERP and connecting to Salesforce and SAP. Work closely with colleagues from accounting, sales, account management, and other engineering teams to deliver solutions that meet changing business needs. Identify and implement process improvements, maintain high code quality, and pursue ongoing professional growth with support from idealo. Tech stack Kotlin Java AWS Odoo ERP Salesforce and SAP interfaces Location This role is based in Berlin, Germany.
Join our Clickout-to-Revenue Team, where you'll be integral to our core business model: merchants pay for qualified redirects ("Clickouts") to their shops. Your role will ensure that this monetization operates smoothly, efficiently, and transparently, significantly contributing to idealos' growth.Your ResponsibilitiesEnd-to-End Responsibility You will develop and manage business and web applications in the AWS Cloud. Together with your team, you will oversee the entire value chain (YBYO): architecture, infrastructure, development, testing, security, deployment, monitoring, on-call duties, and maintenance. Product Focus: Monetization Processes and Services You will develop services for the representation and billing of our business models. Key components include the ERP system Odoo, internal data management tools, and interfaces to Salesforce and SAP. Innovative business models require innovative solutions; hence, you will closely collaborate with stakeholders such as our accounting, sales teams, account management, and other cross-functional engineering teams. Technical Excellence You will actively contribute ideas for process improvements, emphasize high code quality, and engage in continuous personal development – we support you with various training opportunities.
idealo is looking for a Senior Backend Software Engineer (m|w|d) to join the team in Berlin. This role focuses on building and operating the backend for our mobile app, which helps millions of users compare prices and shop smarter. The team takes full ownership of technical implementation, operations, and strategic direction for our services, with a strong commitment to delivering a seamless experience for mobile shoppers. Role overview This position centers on end-to-end responsibility for business and web services in the AWS Cloud. The team manages the full lifecycle of these services, from architecture and infrastructure to development, testing, deployment, monitoring, and on-call support. The goal is to ensure stability, scalability, and high performance, especially during periods of heavy traffic. What you will do Develop and operate backend services in AWS Cloud for the mobile app Design and implement APIs (REST/GraphQL) for Android and iOS applications Make architectural decisions for backend systems, including microservices Enhance cloud infrastructure using tools such as Terraform and Kubernetes Maintain high code quality through testing, code reviews, and monitoring Identify and address technical debt Introduce new technologies and improve development workflows (CI/CD, automation, AI tools) Collaboration and impact Work closely with mobile engineers and backend colleagues Contribute to technical discussions and challenge existing solutions Share knowledge through pair programming, code reviews, and tech talks Communicate complex technical topics to non-technical stakeholders Participate in on-call rotations and take responsibility during critical incidents
Doctolib is hiring a Software Engineer with solid experience in Java and Kotlin. This position is based in Berlin and centers on building digital products that support both patients and healthcare professionals across Europe. Role overview This role involves working on software that aims to improve healthcare access and efficiency. The team values collaboration and a shared commitment to making a difference in the medical field. What you will do Collaborate with team members to design and implement new product features Develop and maintain applications using Java and Kotlin Help create solutions that make healthcare services easier to access and manage Location This role is based in Berlin, Germany.
About the Role scalablegmbh is hiring a Senior Kotlin / Java Software Engineer for the Client Technology team in Berlin. This role focuses on building and improving applications that support client services. The work centers on designing, developing, and maintaining high-performance systems using Kotlin and Java. What You Will Do Design and develop applications that improve client-facing technology Collaborate with engineers and stakeholders to deliver reliable solutions Apply expertise in Kotlin and Java to solve complex technical challenges Who We’re Looking For Strong experience with Kotlin and Java Comfort working in a collaborative team setting Motivation to take on challenging projects that impact client success This position offers the chance to make a direct impact on client outcomes while working with a skilled team in Berlin.
Join our dynamic team as a Senior Backend Engineer and play a pivotal role in developing cutting-edge applications that leverage Kotlin, Spring Boot, and AWS. You will work closely with cross-functional teams to architect and optimize backend systems that meet the demands of our growing user base.
Join our dynamic team to develop an innovative banking platform leveraging cutting-edge technologies and modern software development methodologies.Collaborate with a passionate group of software engineers and academics dedicated to revolutionizing the financial sector.Transform complex business challenges into effective technical solutions.Design and establish connections with major financial industry players to integrate Scalable Capital with the broader financial ecosystem.
About the Role scalablegmbh is looking for a Senior Kotlin / Java Software Engineer focused on Application Framework development in Berlin. This position centers on designing and building scalable applications that support core business functions. The work directly influences our technology choices and strengthens the software we deliver.
At Flix, we foster a technology-driven culture where creativity meets significant real-world applications. We offer competitive compensation, ample opportunities for professional advancement, and a collaborative environment that encourages ownership and innovation.We are on the lookout for a Software Engineer (Kotlin, Java) with robust Kotlin (or Java with a willingness to learn Kotlin) expertise to become a key member of our Capacity Management team in the Demand Division. The Capacity Management team is responsible for developing and maintaining systems that allocate, price, and manage seat availability across Flix. Our team handles high-throughput, real-time data pipelines and event-driven microservices to ensure smooth operations, even in unpredictable situations.As a Software Engineer at Flix, you will have the opportunity to influence systems that directly affect how millions of passengers book their seats and optimize Flix's capacity across our global network in real-time.Our tech stackLanguages & Frameworks: Kotlin, Spring Boot, Akka/PekkoData & Messaging: PostgreSQL, Kafka
About Our Team At SumUp, we provide a cutting-edge Point-of-Sale (POS) solution that empowers businesses such as cafes, shops, bars, and hair salons to operate seamlessly and grow. Our platform boasts a vast array of features, including product catalogs, inventory management, business analytics, compliance support, and loyalty tools. Our POS solution integrates flawlessly into the SumUp SuperApp, which is compatible with our proprietary register hardware as well as mobile devices like tablets and smartphones. As a Senior Android Developer, you will work alongside an innovative, cross-functional team consisting of Product Managers, Product Designers, Engineering Managers, and fellow developers. About the Role We are transitioning towards a Kotlin Multiplatform (KMP) strategy, facilitating shared development between Android and iOS. In this role, you will gain experience with this technology, helping to shape the future of our mobile applications. If you are a developer who prioritizes user-centric design, precision, and effective collaboration, you will thrive here. You bring structure to communication and flourish within a cross-functional environment. This position is based in Berlin, where face-to-face interactions fuel innovation and teamwork. Your Responsibilities Develop new features for the item catalog within the SumUp SuperApp Improve application architecture and actively contribute to our Kotlin Multiplatform strategy Enhance and maintain our unified Android app, utilized in over 60 countries, ensuring high-quality and scalable solutions Drive product evolution by identifying improvement opportunities and participating in daily decision-making Create comprehensive documentation and implement thorough testing for features prior to release Work closely with Designers, Product Managers, and Android engineers to ensure a cohesive UX experience across platforms Mentor and coach junior engineers You Will Excel in This Role If: You possess 8+ years of experience in mobile engineering, particularly with Android and Kotlin. You have 2+ years of experience with Jetpack Compose. You have a strong grasp of software design patterns (e.g., MVVM, MVI) and expertise in creating modular, scalable app architectures. You are knowledgeable about reactive programming (Flow, Coroutines, and Concurrency).
Join us at Delivery Hero as an Engineering Manager specializing in Java/Kotlin for our Logistics Workforce Tribe. We are dedicated to delivering exceptional experiences and are looking for a leader to help us achieve this goal.As part of our Logistics Team, you will address significant challenges to enhance last-mile delivery, making it more efficient, affordable, and sustainable. Your contributions will directly enhance the experiences of riders, end customers, and merchants worldwide. Each improvement you implement will assist Delivery Hero in optimizing our delivery operations, facilitating our expansion into new sectors such as grocery and retail.The Workforce Tribe Team:Riders serve as the backbone of our last-mile delivery, enabling the fulfillment of millions of orders daily.Our Workforce Tribe is responsible for managing gross and net earnings, a wallet for riders to withdraw their earnings, staffing and work scheduling, performance management, loyalty programs, personalized campaigns and goals, recruitment of new riders, and document management for our million-strong rider community.The rider experience with Delivery Hero is our core metric, and you will be at the helm of one of the squads that directly influences this metric.Your Role:Collaborate with your product counterpart to provide technical guidance to your team, facilitating the design of feasible and iterative solutions that align with our business needs.Take ownership of the technical metrics and KPIs for your team, ensuring complete visibility, monitoring, and alerting.Enhance and support the incident resolution process and the team's on-call practices.Mentor junior team members, providing both technical and non-technical guidance.Manage relationships with both technical and non-technical stakeholders, effectively navigating and resolving challenges.
Statista Inc. is hiring a Senior Software Engineer with strong experience in Rust and AWS APIs. This position is based in Hamburg or Berlin and centers on building and improving cloud-based applications. Role overview This role involves designing, implementing, and maintaining scalable software systems. The focus is on ensuring performance and reliability across Statista’s cloud solutions. Collaboration with cross-functional teams is a key aspect, as projects often require input from different technical and business areas. What you will do Develop and optimize applications using Rust and AWS APIs Design software solutions that scale and perform reliably Maintain and improve existing cloud-based systems Work with colleagues from various teams to deliver impactful features Requirements Professional experience with Rust Hands-on knowledge of AWS APIs Ability to design and maintain scalable, high-performance software Comfort working collaboratively to solve complex problems
At JetBrains, we are passionate about code. Since our inception in 2000, we have dedicated ourselves to creating the most powerful and effective developer tools available. By automating routine checks and corrections, our tools enhance productivity, enabling developers to innovate and create freely. Kotlin, a modern programming language developed by JetBrains, targets Java, Android, JavaScript, and native platforms. Since its introduction in 2016, Kotlin has rapidly gained traction, becoming the official language for Android development and receiving support from numerous frameworks, engines, and tools. With Kotlin Multiplatform and Compose Multiplatform, our mission is to empower Android developers to create exceptional multiplatform applications. The Kotlin Multiplatform Tooling team is at the forefront of this initiative, developing tools that simplify the process. We are actively working on Kotlin Multiplatform plugins for IntelliJ IDEA and Android Studio, alongside enhancing IntelliJ IDEA's Android support, KDoctor, and the Kotlin Multiplatform wizard. We are looking for a passionate Android developer who can share their insights and experience with our team while contributing to the development of tools that they have always envisioned. Our international and friendly team welcomes applicants who share our enthusiasm for coding.
Join our innovative team at redcare-pharmacy as a Senior Java Engineer. In this pivotal role, you will leverage your expertise in Java programming to develop robust, scalable applications that enhance our digital pharmacy solutions. Collaborate with cross-functional teams to drive the design and implementation of high-quality software solutions.We are looking for a proactive and detail-oriented engineer who thrives in a dynamic environment and is passionate about problem-solving. If you are ready to make a significant impact in the healthcare technology space, we want to hear from you!
flix is hiring a Full-stack Engineer to join the Payments Team in Berlin. This team develops and maintains the systems that process payments, focusing on both a smooth user experience and the company’s business needs. Java and Kotlin are key technologies in this role. What you will do Collaborate with colleagues across disciplines to design, build, and launch new payment features Support and enhance the systems that process payments for flix customers Share ideas and technical knowledge to help shape the direction of the payment platform Requirements Strong experience with Java and Kotlin Interest in building payment solutions Ability to work onsite in Berlin Location This role is based in Berlin.
About Us Join our dynamic international team at Doctolib, based in Berlin, where we are devoted to enhancing the performance, features, and design of our essential healthcare product, the Scheduling System. Over the past decade, Doctolib has experienced remarkable growth by prioritizing pragmatic solutions and avoiding unnecessary optimizations. To sustain our momentum, we are focusing on performance as a key priority and are continuously evolving the architecture of our core features to accommodate future demands. We are currently re-engineering our Appointments Management Service from the ground up, utilizing modern event-driven, distributed technologies in line with our updated technology strategy. This pivotal service will revolutionize the way Care Teams manage appointments, ensuring patients receive quicker access to care.
JetBrains has developed tools for software teams since 2000. By automating routine checks and corrections, JetBrains products help developers focus on building and shipping software. The goal: make development more productive and creative. Role overview This Backend Customer Success Engineer role centers on supporting engineering teams as they adopt Kotlin for backend development. The position focuses on helping organizations successfully bring Kotlin into production environments. What you will do Guide organizations through the process of moving from Java to Kotlin, assisting with migration, integration, and scaling. Troubleshoot technical challenges that arise during the transition and support teams as they progress from initial experimentation to stable production use. Work with potential users to clarify how Kotlin adoption works and help design migration plans that fit their specific needs. Locations Amsterdam, Netherlands Berlin, Germany Munich, Germany Prague, Czech Republic Remote, Germany
KAYAK, part of Booking Holdings (NASDAQ: BKNG), runs a large-scale travel search platform used by travelers worldwide to find flights, hotels, rental cars, and vacation packages. The company also offers KAYAK for Business, which provides travel management solutions to organizations. Its network includes well-known brands like momondo, Cheapflights, and HotelsCombined. KAYAK aims to make exploring the world easier by building the best travel search engine and values innovation and real impact from its employees. Role overview As a Senior Java Software Engineer based in the Berlin office, you will play a key role in developing and refining the features behind KAYAK’s search and booking systems. The team collaborates with over 200 travel partners, giving users access to more than 500,000 hotels and 550 airlines. Your work will help ensure smooth, reliable experiences for millions of users each day. This position requires onsite presence in Berlin at least three days per week. What you will do Enhance search and booking algorithms to meet the needs of major corporate clients worldwide. Develop and maintain high-performance integrations with third-party APIs, including those for airlines, hotels, and rental car providers. Take ownership of your designs from concept through deployment, with a focus on code quality and system performance. Join code reviews and architectural discussions to keep the K4B project modular and reusable as KAYAK continues to grow. Requirements Bachelor’s degree in Computer Science or a related field. At least 4 years of professional experience working with Java. Strong knowledge of the Spring ecosystem (Spring/Spring Boot) and hands-on experience with both relational (SQL) and NoSQL databases such as PostgreSQL, MySQL, or Redis. Clear and effective communication skills in English. Ability to independently design and deliver engineering projects.
Why choose voize? We are more than just an employer!At voize, we prioritize giving frontline workers the invaluable gift of time—time to care, connect, and truly be present. Unfortunately, much of that time is consumed by administrative tasks that detract from what truly matters: the people.We are revolutionizing this by developing an AI companion that liberates nurses from administrative burdens, allowing them to reclaim up to 30% of their time. Our mission is not to replace human effort but to enhance it, amplifying their impact in the care sector. Currently, over 1,100 care facilities trust voize, and more than 75,000 nurses depend on our AI companion to streamline their daily responsibilities.Supported by a robust $50M Series A funding round led by Balderton Capital, with contributions from HV Capital, Y Combinator, and other prominent VCs, our mission is grounded in technological innovation with a profound social impact. Join us in this transformative journey!
Join Our Team as a Senior Full-Stack Engineer!Are you a driven and inquisitive Senior Full-Stack Engineer (Java/Kotlin)? We invite you to become an integral part of our Supply Division at Flix and elevate the customer station experience to unprecedented heights!As our network continues to expand, Flix customers across the globe anticipate a smooth and enjoyable experience at our stations during their travels. Our self-organized, cross-functional, and distributed team develops innovative solutions to empower Flix station managers in efficiently managing station inventory, which is essential for numerous internal tech teams at Flix, ultimately enhancing the overall experience for millions of passengers.In this role, you will be instrumental in shaping the product landscape by spearheading innovation, tackling complex challenges, and leaving a significant impact on our organization.
Join idealo’s Clickout-to-Revenue team in Berlin, where the focus is on building and maintaining systems that help retailers monetize qualified referrals. The team’s work has a direct impact on idealo’s growth by ensuring monetization processes remain reliable and efficient. Both full-time and part-time arrangements are possible for this Senior Software Engineer position. What you will do Design, develop, and operate business and web applications on AWS Cloud. Take responsibility for the full lifecycle: architecture, infrastructure, development, testing, security, deployment, monitoring, and maintenance. Build and maintain services that handle processing and billing, integrating with key systems such as Odoo ERP and connecting to Salesforce and SAP. Work closely with colleagues from accounting, sales, account management, and other engineering teams to deliver solutions that meet changing business needs. Identify and implement process improvements, maintain high code quality, and pursue ongoing professional growth with support from idealo. Tech stack Kotlin Java AWS Odoo ERP Salesforce and SAP interfaces Location This role is based in Berlin, Germany.
Join our Clickout-to-Revenue Team, where you'll be integral to our core business model: merchants pay for qualified redirects ("Clickouts") to their shops. Your role will ensure that this monetization operates smoothly, efficiently, and transparently, significantly contributing to idealos' growth.Your ResponsibilitiesEnd-to-End Responsibility You will develop and manage business and web applications in the AWS Cloud. Together with your team, you will oversee the entire value chain (YBYO): architecture, infrastructure, development, testing, security, deployment, monitoring, on-call duties, and maintenance. Product Focus: Monetization Processes and Services You will develop services for the representation and billing of our business models. Key components include the ERP system Odoo, internal data management tools, and interfaces to Salesforce and SAP. Innovative business models require innovative solutions; hence, you will closely collaborate with stakeholders such as our accounting, sales teams, account management, and other cross-functional engineering teams. Technical Excellence You will actively contribute ideas for process improvements, emphasize high code quality, and engage in continuous personal development – we support you with various training opportunities.
idealo is looking for a Senior Backend Software Engineer (m|w|d) to join the team in Berlin. This role focuses on building and operating the backend for our mobile app, which helps millions of users compare prices and shop smarter. The team takes full ownership of technical implementation, operations, and strategic direction for our services, with a strong commitment to delivering a seamless experience for mobile shoppers. Role overview This position centers on end-to-end responsibility for business and web services in the AWS Cloud. The team manages the full lifecycle of these services, from architecture and infrastructure to development, testing, deployment, monitoring, and on-call support. The goal is to ensure stability, scalability, and high performance, especially during periods of heavy traffic. What you will do Develop and operate backend services in AWS Cloud for the mobile app Design and implement APIs (REST/GraphQL) for Android and iOS applications Make architectural decisions for backend systems, including microservices Enhance cloud infrastructure using tools such as Terraform and Kubernetes Maintain high code quality through testing, code reviews, and monitoring Identify and address technical debt Introduce new technologies and improve development workflows (CI/CD, automation, AI tools) Collaboration and impact Work closely with mobile engineers and backend colleagues Contribute to technical discussions and challenge existing solutions Share knowledge through pair programming, code reviews, and tech talks Communicate complex technical topics to non-technical stakeholders Participate in on-call rotations and take responsibility during critical incidents
Doctolib is hiring a Software Engineer with solid experience in Java and Kotlin. This position is based in Berlin and centers on building digital products that support both patients and healthcare professionals across Europe. Role overview This role involves working on software that aims to improve healthcare access and efficiency. The team values collaboration and a shared commitment to making a difference in the medical field. What you will do Collaborate with team members to design and implement new product features Develop and maintain applications using Java and Kotlin Help create solutions that make healthcare services easier to access and manage Location This role is based in Berlin, Germany.
About the Role scalablegmbh is hiring a Senior Kotlin / Java Software Engineer for the Client Technology team in Berlin. This role focuses on building and improving applications that support client services. The work centers on designing, developing, and maintaining high-performance systems using Kotlin and Java. What You Will Do Design and develop applications that improve client-facing technology Collaborate with engineers and stakeholders to deliver reliable solutions Apply expertise in Kotlin and Java to solve complex technical challenges Who We’re Looking For Strong experience with Kotlin and Java Comfort working in a collaborative team setting Motivation to take on challenging projects that impact client success This position offers the chance to make a direct impact on client outcomes while working with a skilled team in Berlin.
Join our dynamic team as a Senior Backend Engineer and play a pivotal role in developing cutting-edge applications that leverage Kotlin, Spring Boot, and AWS. You will work closely with cross-functional teams to architect and optimize backend systems that meet the demands of our growing user base.
Join our dynamic team to develop an innovative banking platform leveraging cutting-edge technologies and modern software development methodologies.Collaborate with a passionate group of software engineers and academics dedicated to revolutionizing the financial sector.Transform complex business challenges into effective technical solutions.Design and establish connections with major financial industry players to integrate Scalable Capital with the broader financial ecosystem.
About the Role scalablegmbh is looking for a Senior Kotlin / Java Software Engineer focused on Application Framework development in Berlin. This position centers on designing and building scalable applications that support core business functions. The work directly influences our technology choices and strengthens the software we deliver.
At Flix, we foster a technology-driven culture where creativity meets significant real-world applications. We offer competitive compensation, ample opportunities for professional advancement, and a collaborative environment that encourages ownership and innovation.We are on the lookout for a Software Engineer (Kotlin, Java) with robust Kotlin (or Java with a willingness to learn Kotlin) expertise to become a key member of our Capacity Management team in the Demand Division. The Capacity Management team is responsible for developing and maintaining systems that allocate, price, and manage seat availability across Flix. Our team handles high-throughput, real-time data pipelines and event-driven microservices to ensure smooth operations, even in unpredictable situations.As a Software Engineer at Flix, you will have the opportunity to influence systems that directly affect how millions of passengers book their seats and optimize Flix's capacity across our global network in real-time.Our tech stackLanguages & Frameworks: Kotlin, Spring Boot, Akka/PekkoData & Messaging: PostgreSQL, Kafka
About Our Team At SumUp, we provide a cutting-edge Point-of-Sale (POS) solution that empowers businesses such as cafes, shops, bars, and hair salons to operate seamlessly and grow. Our platform boasts a vast array of features, including product catalogs, inventory management, business analytics, compliance support, and loyalty tools. Our POS solution integrates flawlessly into the SumUp SuperApp, which is compatible with our proprietary register hardware as well as mobile devices like tablets and smartphones. As a Senior Android Developer, you will work alongside an innovative, cross-functional team consisting of Product Managers, Product Designers, Engineering Managers, and fellow developers. About the Role We are transitioning towards a Kotlin Multiplatform (KMP) strategy, facilitating shared development between Android and iOS. In this role, you will gain experience with this technology, helping to shape the future of our mobile applications. If you are a developer who prioritizes user-centric design, precision, and effective collaboration, you will thrive here. You bring structure to communication and flourish within a cross-functional environment. This position is based in Berlin, where face-to-face interactions fuel innovation and teamwork. Your Responsibilities Develop new features for the item catalog within the SumUp SuperApp Improve application architecture and actively contribute to our Kotlin Multiplatform strategy Enhance and maintain our unified Android app, utilized in over 60 countries, ensuring high-quality and scalable solutions Drive product evolution by identifying improvement opportunities and participating in daily decision-making Create comprehensive documentation and implement thorough testing for features prior to release Work closely with Designers, Product Managers, and Android engineers to ensure a cohesive UX experience across platforms Mentor and coach junior engineers You Will Excel in This Role If: You possess 8+ years of experience in mobile engineering, particularly with Android and Kotlin. You have 2+ years of experience with Jetpack Compose. You have a strong grasp of software design patterns (e.g., MVVM, MVI) and expertise in creating modular, scalable app architectures. You are knowledgeable about reactive programming (Flow, Coroutines, and Concurrency).
Join us at Delivery Hero as an Engineering Manager specializing in Java/Kotlin for our Logistics Workforce Tribe. We are dedicated to delivering exceptional experiences and are looking for a leader to help us achieve this goal.As part of our Logistics Team, you will address significant challenges to enhance last-mile delivery, making it more efficient, affordable, and sustainable. Your contributions will directly enhance the experiences of riders, end customers, and merchants worldwide. Each improvement you implement will assist Delivery Hero in optimizing our delivery operations, facilitating our expansion into new sectors such as grocery and retail.The Workforce Tribe Team:Riders serve as the backbone of our last-mile delivery, enabling the fulfillment of millions of orders daily.Our Workforce Tribe is responsible for managing gross and net earnings, a wallet for riders to withdraw their earnings, staffing and work scheduling, performance management, loyalty programs, personalized campaigns and goals, recruitment of new riders, and document management for our million-strong rider community.The rider experience with Delivery Hero is our core metric, and you will be at the helm of one of the squads that directly influences this metric.Your Role:Collaborate with your product counterpart to provide technical guidance to your team, facilitating the design of feasible and iterative solutions that align with our business needs.Take ownership of the technical metrics and KPIs for your team, ensuring complete visibility, monitoring, and alerting.Enhance and support the incident resolution process and the team's on-call practices.Mentor junior team members, providing both technical and non-technical guidance.Manage relationships with both technical and non-technical stakeholders, effectively navigating and resolving challenges.
Statista Inc. is hiring a Senior Software Engineer with strong experience in Rust and AWS APIs. This position is based in Hamburg or Berlin and centers on building and improving cloud-based applications. Role overview This role involves designing, implementing, and maintaining scalable software systems. The focus is on ensuring performance and reliability across Statista’s cloud solutions. Collaboration with cross-functional teams is a key aspect, as projects often require input from different technical and business areas. What you will do Develop and optimize applications using Rust and AWS APIs Design software solutions that scale and perform reliably Maintain and improve existing cloud-based systems Work with colleagues from various teams to deliver impactful features Requirements Professional experience with Rust Hands-on knowledge of AWS APIs Ability to design and maintain scalable, high-performance software Comfort working collaboratively to solve complex problems
At JetBrains, we are passionate about code. Since our inception in 2000, we have dedicated ourselves to creating the most powerful and effective developer tools available. By automating routine checks and corrections, our tools enhance productivity, enabling developers to innovate and create freely. Kotlin, a modern programming language developed by JetBrains, targets Java, Android, JavaScript, and native platforms. Since its introduction in 2016, Kotlin has rapidly gained traction, becoming the official language for Android development and receiving support from numerous frameworks, engines, and tools. With Kotlin Multiplatform and Compose Multiplatform, our mission is to empower Android developers to create exceptional multiplatform applications. The Kotlin Multiplatform Tooling team is at the forefront of this initiative, developing tools that simplify the process. We are actively working on Kotlin Multiplatform plugins for IntelliJ IDEA and Android Studio, alongside enhancing IntelliJ IDEA's Android support, KDoctor, and the Kotlin Multiplatform wizard. We are looking for a passionate Android developer who can share their insights and experience with our team while contributing to the development of tools that they have always envisioned. Our international and friendly team welcomes applicants who share our enthusiasm for coding.
Join our innovative team at redcare-pharmacy as a Senior Java Engineer. In this pivotal role, you will leverage your expertise in Java programming to develop robust, scalable applications that enhance our digital pharmacy solutions. Collaborate with cross-functional teams to drive the design and implementation of high-quality software solutions.We are looking for a proactive and detail-oriented engineer who thrives in a dynamic environment and is passionate about problem-solving. If you are ready to make a significant impact in the healthcare technology space, we want to hear from you!
flix is hiring a Full-stack Engineer to join the Payments Team in Berlin. This team develops and maintains the systems that process payments, focusing on both a smooth user experience and the company’s business needs. Java and Kotlin are key technologies in this role. What you will do Collaborate with colleagues across disciplines to design, build, and launch new payment features Support and enhance the systems that process payments for flix customers Share ideas and technical knowledge to help shape the direction of the payment platform Requirements Strong experience with Java and Kotlin Interest in building payment solutions Ability to work onsite in Berlin Location This role is based in Berlin.
About Us Join our dynamic international team at Doctolib, based in Berlin, where we are devoted to enhancing the performance, features, and design of our essential healthcare product, the Scheduling System. Over the past decade, Doctolib has experienced remarkable growth by prioritizing pragmatic solutions and avoiding unnecessary optimizations. To sustain our momentum, we are focusing on performance as a key priority and are continuously evolving the architecture of our core features to accommodate future demands. We are currently re-engineering our Appointments Management Service from the ground up, utilizing modern event-driven, distributed technologies in line with our updated technology strategy. This pivotal service will revolutionize the way Care Teams manage appointments, ensuring patients receive quicker access to care.
JetBrains has developed tools for software teams since 2000. By automating routine checks and corrections, JetBrains products help developers focus on building and shipping software. The goal: make development more productive and creative. Role overview This Backend Customer Success Engineer role centers on supporting engineering teams as they adopt Kotlin for backend development. The position focuses on helping organizations successfully bring Kotlin into production environments. What you will do Guide organizations through the process of moving from Java to Kotlin, assisting with migration, integration, and scaling. Troubleshoot technical challenges that arise during the transition and support teams as they progress from initial experimentation to stable production use. Work with potential users to clarify how Kotlin adoption works and help design migration plans that fit their specific needs. Locations Amsterdam, Netherlands Berlin, Germany Munich, Germany Prague, Czech Republic Remote, Germany
KAYAK, part of Booking Holdings (NASDAQ: BKNG), runs a large-scale travel search platform used by travelers worldwide to find flights, hotels, rental cars, and vacation packages. The company also offers KAYAK for Business, which provides travel management solutions to organizations. Its network includes well-known brands like momondo, Cheapflights, and HotelsCombined. KAYAK aims to make exploring the world easier by building the best travel search engine and values innovation and real impact from its employees. Role overview As a Senior Java Software Engineer based in the Berlin office, you will play a key role in developing and refining the features behind KAYAK’s search and booking systems. The team collaborates with over 200 travel partners, giving users access to more than 500,000 hotels and 550 airlines. Your work will help ensure smooth, reliable experiences for millions of users each day. This position requires onsite presence in Berlin at least three days per week. What you will do Enhance search and booking algorithms to meet the needs of major corporate clients worldwide. Develop and maintain high-performance integrations with third-party APIs, including those for airlines, hotels, and rental car providers. Take ownership of your designs from concept through deployment, with a focus on code quality and system performance. Join code reviews and architectural discussions to keep the K4B project modular and reusable as KAYAK continues to grow. Requirements Bachelor’s degree in Computer Science or a related field. At least 4 years of professional experience working with Java. Strong knowledge of the Spring ecosystem (Spring/Spring Boot) and hands-on experience with both relational (SQL) and NoSQL databases such as PostgreSQL, MySQL, or Redis. Clear and effective communication skills in English. Ability to independently design and deliver engineering projects.
Why choose voize? We are more than just an employer!At voize, we prioritize giving frontline workers the invaluable gift of time—time to care, connect, and truly be present. Unfortunately, much of that time is consumed by administrative tasks that detract from what truly matters: the people.We are revolutionizing this by developing an AI companion that liberates nurses from administrative burdens, allowing them to reclaim up to 30% of their time. Our mission is not to replace human effort but to enhance it, amplifying their impact in the care sector. Currently, over 1,100 care facilities trust voize, and more than 75,000 nurses depend on our AI companion to streamline their daily responsibilities.Supported by a robust $50M Series A funding round led by Balderton Capital, with contributions from HV Capital, Y Combinator, and other prominent VCs, our mission is grounded in technological innovation with a profound social impact. Join us in this transformative journey!
Join Our Team as a Senior Full-Stack Engineer!Are you a driven and inquisitive Senior Full-Stack Engineer (Java/Kotlin)? We invite you to become an integral part of our Supply Division at Flix and elevate the customer station experience to unprecedented heights!As our network continues to expand, Flix customers across the globe anticipate a smooth and enjoyable experience at our stations during their travels. Our self-organized, cross-functional, and distributed team develops innovative solutions to empower Flix station managers in efficiently managing station inventory, which is essential for numerous internal tech teams at Flix, ultimately enhancing the overall experience for millions of passengers.In this role, you will be instrumental in shaping the product landscape by spearheading innovation, tackling complex challenges, and leaving a significant impact on our organization.
Mar 30, 2026
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