Senior Android Engineer - Mobile Platform

Join Our TeamBecome an integral member of SumUp's Mobile Platform Squad as a Senior Android Engineer and play a pivotal role in our growing Android ecosystem. With substantial investments directed towards flagship products, we empower our feature teams to create world-class user experiences. Your contributions will be key in establishing a solid foundation that enables over 40 Android engineers to work at peak productivity and efficiency, directly influencing the future of mobile payments for millions of merchants.Our engineering culture emphasizes autonomy, collaboration, and innovative thinking. Your initiatives will resonate throughout the organization, connecting you with mobile engineers across various teams. This role is vital for:Removing Bottlenecks: Proactively identifying and resolving critical bottlenecks in CI/CD pipelines and app infrastructure that could hinder the rollout of new features and enhancements.Enhancing Developer Experience: Designing and implementing state-of-the-art tools and infrastructure that significantly improve developer experience, decrease build times, and streamline workflows for our extensive Android engineering team.Modernizing a Mature Codebase: Leading the evolution and refinement of our Android codebase, with an emphasis on code simplicity, maintainability, and overall health across all SumUp Android products.Ensuring Product Stability & Scalability: Providing essential support and guidance across our diverse Android product suite, assuring consistency, reliability, and seamless functionality for the Register, Android Terminal, SumUp Go, and Merchant app.Your Responsibilities:Strategic Impact: Spearhead the development of core experiences for both merchants and our internal Android developers, directly contributing to SumUp's ambitious Android product roadmap.Technical Leadership: Architect, develop, and maintain essential tools, frameworks, and infrastructure that significantly enhance the consistency, scalability, and reliability of our mobile applications, ensuring no adverse effects across our varied Android products.Performance & Efficiency: Drive initiatives in CI/CD systems, advanced developer tooling, and performance enhancements to dramatically optimize mobile development processes and reduce build times for our expanding team.Codebase Evolution: Actively manage technical debt, enhance code health, and introduce best practices to a complex, mature codebase, ensuring its longevity and adaptability.

scalablegmbh is seeking a Senior Android Engineer to join the team in Berlin. This position centers on designing and building Android applications that improve user experience and offer advanced functionality. What you will do Design and develop Android applications with a focus on usability and performance Work closely with colleagues from different disciplines to deliver cohesive mobile solutions Contribute to architectural choices and help shape the direction of mobile development Support the creation of scalable products that can grow with user needs Who we are looking for Experience building Android apps and a strong interest in mobile technology Comfort working on complex technical challenges Enjoys collaborating in a team setting and sharing ideas Motivated to have a meaningful impact on product quality and user satisfaction This role is based in Berlin and offers the chance to help shape the future of mobile solutions at scalablegmbh.

FlixMobility GmbH is looking for a Senior Software Engineer - Mobile/Android (m/f/d) to join the Berlin office. This position centers on building and enhancing mobile apps that serve millions of travelers around the globe. Team and Collaboration The role is part of the Android Team within the Customer Experience Stream's Demand Division. The group includes a product owner, UX specialist, Agile tester, and several engineers. Together, they focus on the travel onboarding journey and post-booking features to make the Flix app a reliable companion for passengers. Close collaboration with iOS colleagues and other feature teams ensures a unified mobile experience. Delivering well-integrated, thoroughly tested features is a key part of the work. What You Will Do Develop and maintain scalable Android applications with a strong focus on user experience Refine onboarding and post-booking flows to improve the passenger journey Work alongside cross-functional teams to deliver cohesive mobile features Maintain code quality and reliability through comprehensive testing Tech Stack Languages & Architecture: Kotlin, Jetpack Compose, MVVM, Clean Architecture Networking & Data: GraphQL, Firebase Remote Config, Crashlytics Dependency Injection: Dagger/Hilt Testing: Espresso, Robolectric, JUnit CI/CD & Automation: GitLab CI/CD, Fastlane, Docker Collaboration Tools: Figma, Microsoft Teams, Atlassian Jira, Confluence, Atlas Benefits Competitive salaries Growth and development opportunities Collaborative culture with personal ownership Work on products used by millions of travelers

Lead the complete development lifecycle of high-performance Android applications utilizing Kotlin, Coroutines/Flow, Jetpack Compose, Dagger/Hilt, Retrofit, and Espresso, along with other cutting-edge technologies.Design and enhance a modular architecture that ensures long-term maintainability and reliable performance even under peak traffic conditions.Drive automation initiatives by establishing robust build, test, release, and deployment pipelines as integral aspects of the product (CI/CD).Function as a technical multiplier by elevating quality standards through code reviews, mentoring colleagues, and disseminating knowledge across Android teams.Collaborate with product, design, and editorial teams to shape features from concept to launch, ensuring optimal user value, reliability, and speed.Investigate and implement AI-driven development tools to enhance developer productivity and software quality, grounded in sound engineering principles.

Join Avaloq, a leading provider of banking software solutions, as a Software Engineer specializing in Android Mobile Banking. You will be at the forefront of developing innovative mobile banking applications that enhance user experiences across the European market. Collaborate with a dynamic team of professionals to deliver high-quality software solutions that meet the evolving needs of our clients.

Join Our Innovative TeamAt SumUp, we provide powerful Point-of-Sale (POS) solutions that empower diverse businesses such as cafes, shops, bars, and salons to thrive. Our platform features robust tools for product management, inventory oversight, business analytics, regulatory compliance, and customer loyalty programs.Our advanced POS solution is seamlessly integrated into the SumUp SuperApp, supporting both our proprietary hardware and a variety of mobile devices.As an Android Developer, you will work alongside a talented, cross-functional team comprising Product Managers, Designers, Engineering Managers, and fellow developers.Your RoleWe are transitioning to a Kotlin Multiplatform (KMP) strategy to facilitate shared development for both Android and iOS applications. In this dynamic role, you will gain expertise, refine your skills, and contribute to the evolution of our mobile applications.You are a developer who prioritizes user-centric design, values clear communication, and excels in collaborative environments.On-site Collaboration in BerlinWe believe that in-person interactions drive innovation and teamwork, making this role exclusively on-site in Berlin.Your ResponsibilitiesDevelop and enhance features for the item catalog within the SumUp SuperApp.Contribute to the architectural improvement of the application while supporting our Kotlin Multiplatform initiative.Maintain and enhance our unified Android application, serving over 60 countries and ensuring high-quality, scalable solutions.Identify areas for enhancement, influencing product evolution and participating in daily decision-making.Create comprehensive documentation and execute thorough testing for new features prior to deployment.Work closely with Designers, Product Managers, and Android engineers to provide a cohesive user experience across platforms.Mentor and coach junior engineers.Who You AreYou possess 3+ years of experience in mobile engineering, specifically with Android and Kotlin.You have 2+ years of experience utilizing Jetpack Compose.You have a strong understanding of software design patterns (e.g., MVVM, MVI) and are skilled in creating modular, scalable app architectures.You are passionate about user-centric design and thrive in a collaborative environment.

Greetings!At Yazio, we are on a mission to empower individuals to live healthier lives through innovative technology. We are seeking a talented and product-focused Senior Mobile Engineer to join our dynamic core squad and contribute to features that inspire millions to embark on their wellness journey.As an essential member of our cross-functional team, you will collaborate closely with the Product Manager, Engineering Manager, and Designer. Your insights will shape our product, utilizing our Kotlin Multiplatform (KMP) stack to create elegant and impactful solutions for users on both iOS and Android platforms.This position offers the flexibility of being 100% remote, welcoming candidates from Germany, Spain, Portugal, or the U.K.YOUR MISSIONYour role is to transform user needs and product vision into robust, high-quality code that delivers a world-class user experience. You will oversee the technical execution within the squad, embodying best practices and supporting the entire team.Take Ownership of Features. You will convert concepts from technical design into polished, deployed features. Your responsibilities include writing clean, maintainable code, ensuring comprehensive test coverage, and monitoring the impact of your contributions in a live environment.Collaborate with Product and Design. You will be an integral part of the discussion, providing technical insights, evaluating trade-offs, and helping to shape a roadmap that balances ambition with feasibility.Promote Technical Excellence. As a steward of our codebase, you will help manage technical debt, enhance performance, and advocate for the adoption of modern practices within our Kotlin Multiplatform framework.Empower Your Team. You will act as a mentor to fellow engineers, leading by example through thoughtful code reviews, refining team processes, and sharing your expertise to foster collective growth.YOUR PROFILEWe are looking for a seasoned engineer who is not only passionate about their craft but also deeply committed to the positive impact their code has on users.Extensive Experience in Modern Mobile Development. You have a strong background in building native mobile applications on Android (Kotlin, Jetpack Compose). Familiarity with iOS development (Swift, SwiftUI) is an advantage, along with a readiness to broaden your expertise across both ecosystems. Experience with KMP is highly desirable.Proven Track Record. You possess a solid history of delivering high-quality software and have experience working in agile environments.Team Player. You thrive in collaborative settings and enjoy sharing knowledge while learning from others.Attention to Detail. You have a keen eye for detail and a commitment to maintaining high standards in your work.

Join Tonsser, a company dedicated to empowering young football players for over a decade, as we embark on an exciting phase of growth. We are currently seeking a skilled Senior Android Developer to play a pivotal role in shaping our future innovations. If you have a passion for your craft, thrive in a fast-paced environment, and desire to make a significant impact on the lives of millions of athletes, we encourage you to apply.

About Gigs Gigs builds a modern mobile service platform that lets tech companies add global connectivity to their products. The platform aims to make telecom as easy to integrate as payment systems, helping businesses, from fintech startups to HR platforms, offer mobile solutions without the usual telecom hurdles. The team includes around 100 people based in the US and Europe. Backed by nearly $100 million from investors such as Ribbit Capital, Google, and Y Combinator, Gigs brings together engineers, product specialists, and leaders from companies like Stripe, Airbnb, and Shopify. The focus: solve technical and regulatory problems to make connectivity seamless for customers. Gigs welcomes people who are curious, creative, and eager to help shape the future of telecom. Core Values Speed: Deliver quickly and meet ambitious goals. Each week matters. Ownership: Spot a problem? Step in and fix it. Team members are trusted to take initiative. Customer Focus: The success of customers' products is the top priority. Adaptability: Navigating complexity requires sound judgment and flexibility as the team builds new technology. First Principles Thinking: Challenge assumptions and ask why things are done a certain way. Role Overview: Senior Platform Engineer The Senior Platform Engineer will help design, build, and maintain the infrastructure and developer tools at the heart of Gigs’ connectivity and payment platform. This work enables product teams to deliver faster, improve reliability, and scale systems. The Foundation team manages the core systems every Gigs engineer depends on: CI/CD pipelines, cloud infrastructure, observability tools, deployment frameworks, and shared platform services. This role will tackle complex infrastructure projects and support the company’s ongoing technical growth.

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).

Are you passionate about creating innovative mobile experiences? FlixTech is looking for a talented Product Designer with a focus on Android platforms to join our dynamic team in Berlin. In this role, you will be responsible for designing user-centric applications that enhance travel experiences for our customers.As a Product Designer at FlixTech, you will collaborate closely with product managers and developers to create intuitive and engaging designs. You will conduct user research, create wireframes and prototypes, and ensure that our mobile applications meet high standards of usability and aesthetic quality.

Superhuman offers a full-time dynamic hybrid working model for this role. This flexible framework allows team members to enjoy both focused work time and in-person collaboration, fostering trust, innovation, and a robust team culture.About SuperhumanSuperhuman, now a part of Grammarly, is revolutionizing productivity through AI, dedicated to unlocking the superhuman potential within everyone. Our suite of applications seamlessly integrates with over 1 million platforms and websites, providing tools such as Grammarly's writing assistance and Go, our proactive AI assistant. Founded in 2009, we empower over 40 million users and thousands of organizations and educational institutions globally to eliminate busywork and prioritize what truly matters. Discover more at superhuman.com and explore our core values here.The OpportunityTo reach our ambitious targets, we are seeking a talented Android Engineer to join our Mobile Team. This role presents a unique opportunity to develop new features and capabilities that will enhance the Superhuman Android experience to world-class standards.Our engineers and researchers enjoy the freedom to innovate and drive breakthroughs that directly influence our product roadmap. As we scale our interfaces, algorithms, and infrastructure, the complexity of our technical challenges is rapidly increasing. For insights from our team, check out our technical blog.Writing effectively on mobile devices poses significant challenges, particularly in professional environments. Our Superhuman AI Writing Assistant, launched in 2023, aims to make effective and error-free writing easily accessible on mobile. Since its introduction, it has gained substantial traction, with users engaging with it over seventy times daily.Creating a seamless writing assistant experience brings unique challenges, as there is no tolerance for delays or glitches in a product that users rely on for immediate responses. As an Android Engineer, you will:Work closely with the Product, Design, and Machine Learning teams to translate new ideas from concept to production.Contribute to the ongoing architecture of our mobile products, ensuring outstanding responsiveness and performance, even in resource-constrained environments.

TransPerfect, a prominent player in the industry with a vibrant start-up atmosphere, is on the lookout for innovative and entrepreneurial individuals to join our dynamic team. We are currently seeking a Mobile Engineer to contribute to our global efforts in delivering exceptional user experiences across both iOS and Android platforms. This full-time hybrid position requires a blend of independent initiative and collaborative teamwork within a high-impact environment, dedicated to developing cutting-edge products.As part of our team, you will be responsible for building high-quality mobile applications using Flutter, and designing new components from the ground up that enhance our user engagement.About the TechOps Team at TransPerfect:The TechOps team at TransPerfect has played a crucial role in our success over the past decade, providing technology and services that significantly streamline our clients' and colleagues' experiences. From enhancing workflows for our team to developing fundamental services for our GlobalLink platform, the team is dedicated to creating scalable user interfaces that simplify complex ecosystems for novice users.Your responsibilities will include:Acting as a subject matter expert on mobile app development, defining best practices for mobile development, design thinking, and deployment processes.Collaborating with product managers, engineers, designers, and QA to create compelling user experiences on both iOS and Android platforms.Taking ownership of major mobile app features, components, and overall application solutions in collaboration with technical leads and senior engineers.Working in an agile environment, managing internal and external requirements and expectations effectively.Providing constructive feedback throughout the software development lifecycle to align development priorities with business objectives.Writing clean, efficient, and maintainable code adhering to industry best practices and coding standards.Keeping abreast of the latest trends, technologies, and best practices in mobile development.

Join our innovative team as a Senior Platform Engineer, where you will play a crucial role in shaping the future of urban mobility. Your expertise will help us build and maintain scalable and efficient platforms that enhance our services. Collaborate with talented professionals in a dynamic environment that encourages creativity and innovation.

Become an integral part of SumUp's Mobile Platform Squad as an iOS Engineer. With substantial investments in our mobile products, we empower feature teams to deliver exceptional experiences. You will play a pivotal role in building the robust infrastructure that enables iOS engineers across the organization to work efficiently and effectively, directly influencing the future of mobile payments for millions of merchants.Our engineering culture fosters autonomy, collaboration, and innovation. Your contributions will make a significant impact, connecting you with mobile engineers throughout the company.This role emphasizes:Enhancing Developer Experience: Developing and maintaining tools and infrastructure that improve the developer experience, decrease build times, and optimize workflows for our mobile engineering team.Maintaining CI/CD Pipelines: Ensuring the reliability and efficiency of our CI/CD systems, enabling feature teams to ship confidently.Advancing a Mature Codebase: Engaging in the enhancement of our iOS codebase, with a focus on simplicity, maintainability, and long-term viability.Ensuring Product Stability: Offering foundational support across our iOS products to guarantee consistency and reliability for merchants globally.

ABOUT TALON.ONE:Talon.One is a cutting-edge incentives engine that seamlessly integrates loyalty, promotions, and gamification into a singular, comprehensive platform. With a robust foundation of enterprise-grade security and scalability, Talon.One enables businesses to craft personalized and profitable promotions and loyalty initiatives utilizing any data available.Currently, over 250 of the world’s most beloved brands, including Adidas, Sephora, and Carlsberg, collaborate with Talon.One to foster deeper engagement and enduring loyalty among their customers.ABOUT THE TEAM:The R&D team at Talon.One comprises a diverse group of engineers, product innovators, and designers dedicated to building and scaling the systems that power Talon.One’s platform. Each team operates with autonomy, shared accountability, and a strong sense of ownership, focusing on enhancing our ecosystem.Within R&D, the Platform Tribe is pivotal in empowering product teams to deliver value both safely and efficiently. We are committed to developing and refining shared capabilities, including our Internal Developer Platform, CI/CD workflows, cloud foundations, and operational tools. Our mission is to minimize friction, establish clear guardrails, and provide engineers with a streamlined path from concept to production.We cherish curiosity, practical problem-solving, and open collaboration. Teams gain visibility into systems from end to end, and we actively promote mentoring, documentation, and knowledge sharing. Talon.One is dedicated to fostering an inclusive environment where diverse perspectives contribute to superior systems and decisions.Located in Berlin, we welcome professionals already residing here or those eager to relocate.ABOUT THE ROLE:We are in search of a Senior Platform Engineer to elevate our Internal Developer Platform and shared tooling to the next level. With a solid foundation already established, including Backstage as our IDP, we are now keen on building meaningful capabilities that provide significant value to both our business and engineering teams.This role requires a blend of technical leadership and strong product insight. As there is no dedicated product manager for the platform, you will collaborate closely with engineering managers, technical leads, and engineers to understand their challenges, identify opportunities, and drive initiatives from concept through to production. You will lead platform projects from start to finish: defining the problem, designing solutions, implementing them, and ensuring their adoption and ongoing maintenance.Additionally, you will work in close partnership with infrastructure, SRE, and product engineers, balancing long-term planning with immediate needs, and ensuring that our systems remain reliable and scalable.

Zenjob connects businesses with temporary workers through a staffing platform that relies on AI-driven technology. Since launching in 2015, Zenjob has helped over 40,000 students find flexible work and has built partnerships with more than 1,000 companies in logistics, retail, and hospitality across Germany’s major cities. The company’s mission centers on making flexible work accessible and efficient by building dependable technology. Role overview The Senior Platform Engineer will join the Platform & Infrastructure team in Berlin. This role focuses on strengthening the systems and tools that support Zenjob’s engineering teams. Key areas of work include optimizing AWS infrastructure, managing Kubernetes clusters, and improving CI/CD pipelines with GitHub Actions. The team is also responsible for observability using Grafana, Prometheus, Datadog, and Incident.io, as well as exploring AI platform solutions such as n8n, LiteLLM, and Retool. Maintaining and improving the in-house CLI, developed in Go, is another important aspect of this position. What you will do Guide technical decisions and provide architectural input for platform infrastructure. Work closely with engineers across teams, including Data Platform and Platform Enablement, to deliver improvements for the broader engineering organization. Optimize cloud infrastructure on AWS, manage Kubernetes, and enhance CI/CD processes using GitHub Actions. Maintain and extend observability tools such as Grafana, Prometheus, Datadog, and Incident.io. Integrate and support AI platform solutions, including n8n, LiteLLM, and Retool. Contribute to the development and maintenance of the Go-based in-house CLI used by engineering teams. Requirements Experience treating infrastructure as a product, with a strong preference for Terraform. Ability to act as a trusted resource for engineers seeking solutions to platform challenges. Comfort working collaboratively and providing technical direction. Location This role is based in Berlin.

The Team and Your Role:As a vital member of the Engineering department, the Platform team at emnify is dedicated to enhancing our competitive advantage by optimizing the developer experience, ultimately driving increased development efficiency and productivity. You will be joining a dynamic team that values collaboration and empathy, ensuring ongoing improvements in the development environment at emnify. Our Platform team not only manages the central infrastructure utilized by all teams for observability and CI/CD but also offers consultation and hands-on support to engineering teams. In your capacity as a Platform Engineer specializing in Kafka, you will take ownership of the Kafka clusters and their supporting infrastructure while assisting with the maintenance of our managed infrastructure.For more information, explore our Emnify Technology Radar.This position is a hybrid role based in emnify’s office in Berlin.

Join SumUp as a Senior Android Engineer in our dynamic Design System team. You will play a pivotal role in transforming SumUp’s design language into a versatile library of user interface components and experience patterns. This initiative empowers product teams to create cohesive and accessible user experiences that resonate globally.The Design System team is poised for growth, reflecting SumUp’s expanding suite of merchant and consumer-facing products. This position presents a remarkable opportunity to enhance and innovate a system that accelerates feature development, ultimately delivering high-quality experiences to millions of users worldwide.Key ResponsibilitiesShape the core experience for users and developers within SumUp’s Android ecosystem.Collaborate closely with product and design teams to develop components that prioritize maintainability, usability, aesthetic appeal, and consistency.Integrate accessibility best practices into every component, ensuring compliance with content descriptions, touch target size, color contrast, and font scaling.Implement dynamic theming support, allowing for light/dark mode and brand variations that can be adjusted in real time or through configuration.Provide hands-on technical support to product teams to align with company objectives, including the upcoming brand refresh.Review code contributions, enforce design-system conventions, and mentor engineers on best practices for reusable UI development.Proactively identify and mitigate technical debt to uphold high standards of engineering excellence and codebase health.Qualifications3+ years of professional Android development experience, with a strong command of Kotlin and modern Android frameworks.At least 2 years of experience with Jetpack Compose.A passion for writing clean code, demonstrating a balance between pragmatism and perfection.A solid understanding of testing best practices: what to test, why, and how to create resilient tests.A keen eye for detail and a commitment to accessibility.Self-motivated with a structured working style, complemented by strong verbal and written communication skills in English.An enthusiasm for staying updated with advancements in the Android ecosystem and a desire to share knowledge with the Android community.Bonus QualificationsExperience in building and maintaining design systems or component libraries for Android, including theming, style guides, and reusable UI components.

Bolt is seeking a Senior Mobile QA Engineer to work with engineering teams in Berlin. This position centers on testing and improving mobile applications for both Android and iOS. What you will do Collaborate with Engineers, Designers, and Product Managers to uphold high quality standards for Bolt’s mobile apps Focus on complex product areas such as demand prediction, real-time pricing, routing, fraud detection, and distributed systems Help ensure a consistent and exceptional user experience across platforms Who we’re looking for Proactive and detail-oriented approach to quality assurance Experience working on mobile QA for Android and iOS applications Comfortable collaborating with cross-functional teams This role offers the chance to tackle technical challenges and contribute directly to the quality of Bolt’s mobile products.