Senior Backend Software Engineer - Join Cresta in Berlin

Affinidi builds technology that puts data ownership in the hands of individuals and businesses. The company develops decentralized digital identity products, aiming to create a trusted environment where digital credentials support secure exchanges across industries and borders. Privacy and security are central to every solution. Role overview The Senior Backend Engineer (Rust) will focus on developing and enhancing backend systems that power Affinidi’s digital identity offerings. This position emphasizes scaling, performance, and security. The work done in this role will shape how Affinidi’s products evolve to support secure data exchange. Location Based in Berlin, Germany.

About the CompanyAt Affinidi, we are revolutionizing data ownership to empower individuals and businesses. Our technology enables users to take control of their digital identity, ensuring privacy and security while managing their complete digital footprint.We are committed to fostering a trusted ecosystem for decentralized digital identity solutions, allowing seamless data exchange across industries and borders.About the Role:We are looking for a Senior Backend Engineer with expertise in Rust. The ideal candidate will be solution-oriented and possess a strong track record in backend development. You will play a crucial role in our mission to create innovative solutions that enhance data ownership and privacy.

About the CompanyAffinidi is a pioneering technology firm committed to revolutionizing data ownership. We empower both businesses and individuals to take control of their data, offering a holistic approach to managing their digital identities while prioritizing privacy and security.Our innovative technology facilitates decentralized digital identity solutions, ensuring that everyone has the right to own and manage their data. We are dedicated to building a trusted ecosystem for digital credentials that enables secure data and service exchanges across various sectors and borders.About the Role:We are looking for a Senior Backend Engineer (Rust) who is solution-oriented and possesses proven experience in backend development using Rust. You will be responsible for designing, implementing, and maintaining robust backend systems that align with our vision of secure, decentralized data management.

Greetings from AMBOSS! We are on the lookout for a Senior Backend Engineer specializing in PHP to join our dynamic Educator Experience team and help us redefine the future of medical education!About AMBOSSFounded in 2012, AMBOSS is a pioneering learning and clinical decision support platform dedicated to empowering physicians worldwide to provide the best possible care. By leveraging cutting-edge technology, we are transforming how medical professionals acquire and utilize scientific knowledge. Our team, known as AMBOSSians, shares a passion for supporting clinicians and medical students alike, striving for success that resonates with our mission—when a user expresses, “AMBOSS makes practicing medicine enjoyable and efficient,” we know we are making a difference. Curious about our vibrant culture? Check out our video to discover what sets us apart.Why This Role is ExcitingAs a Senior Backend Engineer at AMBOSS, you will play a pivotal role in enhancing the user experience for doctors and medical students, enabling them to make informed decisions that affect the healthcare of billions globally. We are looking for an individual who is deeply passionate about harnessing technology to its fullest potential and leading the charge in engineering excellence. Join our agile team in transforming educational institutions, such as medical schools and clinics, by optimizing the use of AMBOSS resources in their teaching methods.Your Responsibilities:Lead engineering projects for our innovative B2B product, “Educator Tool,” from inception to deployment.Promote best practices in coding standards, testing, and maintainability.Collaborate with cross-functional teams to establish project requirements and specifications.Respond to ad-hoc requests from customer support.Contribute to a culture of continuous learning by sharing knowledge within the AMBOSS community.Your Qualifications:Extensive experience with PHP and its modern frameworks such as Symfony, Slim, and Laravel, alongside proficiency in MySQL.Comprehensive experience across the full web development lifecycle, including requirements analysis, design, development, testing, and deployment.

Affinidi develops technology that helps individuals and organizations manage their data with greater control. The company specializes in privacy and security, delivering decentralized digital identity solutions. Its platform enables secure data exchange and digital credential management across various industries and international boundaries. Role overview The Senior Backend Engineer (Rust) will take part in designing and building backend systems that support Affinidi’s digital identity products. This position centers on applying strong Rust expertise to real-world engineering problems, always with a practical mindset. Requirements Extensive experience developing backend systems with Rust Ability to address engineering challenges with practical, effective solutions

Join ABOUT YOU GmbH as a Backend Engineer and become part of a dynamic and innovative team. In this role, you will be responsible for developing and maintaining our backend systems, ensuring reliability and scalability. You will collaborate closely with cross-functional teams to deliver high-quality software solutions that enhance our user experience.We are seeking individuals who are passionate about technology and eager to tackle complex challenges. If you thrive in a fast-paced environment and are looking to make a significant impact, we want to hear from you!

About Anthropic Anthropic is committed to building AI systems that are reliable, interpretable, and steerable. The team’s mission centers on making AI safe and beneficial for both users and society. Researchers, engineers, policy experts, and business leaders collaborate closely to advance this goal as the company grows. Role Overview: Infrastructure Engineer (Sandboxing Team) The Infrastructure Engineer will join the Sandboxing team within Anthropic’s Research organization in Berlin. This role focuses on designing and scaling the systems that let researchers safely run and experiment with AI-generated code and interactions inside controlled environments. As Anthropic’s AI models become more capable, secure execution infrastructure grows in importance. The work involves building distributed systems that must operate reliably at scale while maintaining strict security boundaries. Contributions in this position directly support Anthropic’s mission to develop safe, beneficial, and trustworthy AI systems. Key Responsibilities Design, build, and maintain distributed backend systems for secure sandboxed execution environments. Scale infrastructure to support expanding research and product needs, focusing on reliability and performance. Implement and manage serverless architectures and container orchestration systems. Collaborate with research teams to gather requirements and translate them into effective infrastructure solutions. Develop monitoring, alerting, and observability systems to ensure high operational standards. Participate in on-call rotations and incident response to help maintain system reliability. Enhance infrastructure automation and tooling to improve developer productivity. Work with security teams to ensure sandboxing infrastructure meets required isolation standards. What Makes a Strong Candidate More than 5 years of experience building and managing backend infrastructure at scale. Deep understanding of distributed systems design and implementation. Strong operational background, including troubleshooting complex production issues. Proficiency with cloud platforms, especially GCP/GCS; experience with AWS or Azure is a plus. Familiarity with containerization technologies and practices.

Transform the Travel Experience Be a part of GetYourGuide's mission to revolutionize the way people explore the world. We connect millions with memorable travel experiences they can trust, driven by our dedication to making every journey exceptional—including yours. Are you prepared to unleash your potential alongside a community of passionate explorers? Discover your next opportunity at our Berlin headquarters or in one of our offices worldwide, from New York to Bangkok. Visit getyourguide.careers to embark on your journey. Your Role in Our Mission As a Senior Accountant, you will take charge of crucial reconciliation and reporting tasks, ensuring the delivery of high-quality financial data across various systems—from transaction details to month-end outputs. You will collaborate closely with accounting teams, FP&A, and Finance IT to maintain our financial operations, identifying root causes, enhancing processes, and fortifying documentation and controls. Key Responsibilities Lead complex reconciliations across diverse systems and data sources, thoroughly investigating discrepancies and resolving issues comprehensively. Manage substantial financial data volumes, guaranteeing completeness, accuracy, and robust audit trails. Conduct in-depth account analyses and create clear documentation that supports month-end closures, internal controls, and external audit needs. Collaborate closely with FP&A, Accounting, and Finance IT to ensure precise financial results, streamlined processes, and strong interdepartmental alignment. Dive deep into system and ledger particulars (SAP S/4 Hana and additional reporting tools) to pinpoint root causes, enhance data integrity, and optimize workflows. Assist in month-end and year-end closing activities, including preparing and reviewing journal entries and balance sheet substantiations. Identify and execute process enhancements, automation possibilities, and control improvements to boost efficiency and diminish risk. Support ad-hoc analyses and projects requiring strong accounting acumen, structured problem-solving, and clear communication. Essential Qualifications Minimum of 5 years of relevant accounting experience (in-house accounting, audit, advisory, or a blend), demonstrating a history of managing complex topics independently. Strong foundational accounting knowledge with the ability to apply it in high-volume, real-world scenarios.

Role overview Taktile supports banks and fintech companies by automating key decisions such as credit checks and risk assessments. The Senior Backend Engineer on Team Decide focuses on building and improving the distributed execution engine that drives customer workflows. This engine forms the foundation of Taktile’s automated decision-making platform. What you will do Design and implement backend systems for distributed workflow execution Take ownership of critical systems throughout their lifecycle, from architecture to deployment Collaborate with a small, dedicated team where each engineer’s perspective directly influences the product Address complex backend problems specific to automated decision-making in financial technology Location This role is based in Taktile’s Berlin office.

About the RoleAs a Senior Fullstack Engineer at peec, you will take charge of intricate product features, overseeing everything from architecture and data modeling to crafting aesthetically pleasing and high-performance user interfaces.Key ResponsibilitiesOwn complex product features from inception to completion, ensuring a seamless user experience.Transform product concepts and designs into pixel-perfect, production-grade interfaces utilizing modern frameworks and component libraries.Collaborate with Product, Design, and Engineering teams to define project scope, shape technical direction, and deliver delightful features.Enhance and evolve our backend infrastructure along with our frontend design systems, promoting consistency, scalability, and developer efficiency.Challenge existing paradigms across the stack by enhancing developer experience, introducing innovative capabilities, and fostering a culture of innovation.

Are you ready to take your career to the next level? Join dev2 as a Senior Data Engineer specializing in Python and play a pivotal role in our data-driven projects. You will work closely with cross-functional teams to design and implement scalable data solutions that drive innovation and efficiency.In this role, you will:Design, develop, and maintain data pipelines and ETL processesCollaborate with data scientists and analysts to optimize data storage and retrievalEnsure data quality and integrity through rigorous testing and validationContribute to architectural discussions and guide best practices

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

Role Overview Endava is hiring a Senior DevOps Engineer for its Berlin office. This role focuses on building and maintaining cloud infrastructure, working alongside cross-functional teams to deliver reliable and secure solutions for clients. What You Will Do Automate deployment pipelines to streamline software releases Manage and optimize cloud environments Monitor systems to ensure reliability and security Work with colleagues from various disciplines to design and implement scalable solutions Promote DevOps practices and help shape the team’s approach Mentor junior engineers and support their growth Location This position is based in Berlin.

About the CompanyAndercore is an innovative AI-powered trading platform revolutionizing the industrial supply chain for infrastructure, energy, and construction materials. We connect thoroughly vetted suppliers from Asia, Europe, and the GCC region with local demand through a seamless integrated platform.Our proprietary AI technology digitizes and automates the entire lifecycle of materials trade—covering procurement, pricing, inventory management, logistics, and embedded financing—thus transforming countless manual processes into real-time, orchestrated workflows.Buyers enjoy instant quotes, dependable availability, and predictable delivery via our unified operating system. Suppliers benefit from precise forecasting, effective demand management, and smooth integration into cross-border fulfillment networks. We collaborate with leading brands to execute both dropship and cross-dock fulfillment strategies for large-scale transactions, turning global supply chains into predictable, repeatable, software-driven workflows.Having achieved triple-digit million GMV and operating in six international markets, we are swiftly moving towards profitability. With a diverse team of over 80 members based in Berlin and Asia, we are on a mission to build the world’s first industrial-grade AI operating system for materials—redefining the dynamics of global trade in one of the most critical industries.Backed by top-tier investors and global banking partners, we recently secured a $40 million Series B funding round led by Atomico, Project A, and Invent Capital, supported by institutional backing from Commerzbank and KfW.About the RoleAs a Senior Backend Engineer, you will serve as a technical pillar within our team, expected to lead by example, influence architectural decisions, and elevate the quality of our deliverables. You will work autonomously while remaining deeply embedded in a collaborative engineering culture.Tech Stack: Java 21 (Spring Boot 3), Python, LangGraph, LLM APIs (OpenAI, Anthropic, Gemini), PostgreSQL, Kinesis, AWS, Terraform, GitHub Actions, Node.js, TypeScript, Next.js, React.

Role overview Taktile creates technology that enables banks and fintechs to automate critical decisions, such as credit and risk assessments, in real time. As a Senior Backend Engineer on Team Atlas, the main focus is on developing and maintaining the data infrastructure that powers Taktile’s feature computation platform. This position holds responsibility for the full lifecycle of core backend systems, from initial design through deployment, and plays a key role in shaping the direction of the product. What you will do Design, build, and maintain backend services using Python on AWS, including Lambda functions, DynamoDB, Aurora, and event-driven pipelines that support live production workloads. AI tools are part of the regular workflow. Address complex technical challenges related to latency, reliability, and scalability in backend systems. Take ownership of systems end to end: architecture, implementation, deployment, monitoring, and incident response are all part of the role. Influence architectural decisions and help determine how systems are built, not just what gets built. Contribute to team growth by conducting code reviews, mentoring peers, and improving development tools and processes. Collaborate closely with Product and Design teams to help define new features and guide product direction. Location This role is based at Taktile’s office in Berlin.

scalablegmbh is seeking a (Senior) Data Engineer to join the team in Berlin. This role centers on designing and building data architectures that support the company's data-driven goals. The work directly shapes how teams access and use information for important decisions. Role overview The (Senior) Data Engineer will focus on creating reliable systems for collecting, storing, and processing data. Collaboration with other teams ensures that data is accessible and useful for a variety of business needs. What you will do Design and implement data architectures tailored to business requirements Support teams by enabling effective data use for decision-making Location This position is based in Berlin.

P-1327 At Databricks, we are driven by a passion for empowering data teams to tackle some of the world’s most complex challenges. From revolutionizing transportation methods to speeding up medical innovations, our mission is to build and operate the leading data and AI infrastructure platform, enabling our customers to leverage profound data insights to enhance their business. Established by engineers, Databricks is embarking on an ambitious journey to develop the most advanced Lakehouse Platform. While we have a solid foundation, we aim to elevate our offerings to create significantly improved products. Our goal is to reimagine every component to provide our customers with the fastest, most user-friendly, and secure data platform for all their data workloads. As a Senior Software Engineer, you will be a key member of our Berlin site and play a pivotal role in our multi-year mission to realize our Lakehouse vision. You will engage in the entire development lifecycle and embody the core values of Databricks. The impact you will have: Our backend teams operate across various domains within our essential service platforms. You may encounter challenges such as: Addressing issues that encompass product development and infrastructure, including distributed systems, scalable service architecture, monitoring, workflow orchestration, and enhancing developer experience. Creating reliable, secure, and high-performance services and client libraries for managing and accessing massive amounts of data on cloud storage solutions, such as AWS S3, GCS, and Azure Blob Store. Developing product features that empower our customers to efficiently store and access their data.

About GetYourGuideGetYourGuide stands as the world's leading marketplace for unforgettable travel experiences. Travelers utilize our platform to uncover the best activities in their chosen destination. Since our inception in 2009, over 150 million tours, activities, and attraction tickets have been booked through GetYourGuide by adventurers from around the globe. With a dedicated global team of more than 800 travel experts and technologists, we are proudly headquartered in Berlin, complemented by 17 local offices worldwide.The Mission:At GetYourGuide, technology is the driving force behind our growth. Our work within the Marketplace is transforming global travel experiences, and we invite you to join us in this endeavor.The features we develop facilitate seamless bookings for our customers while empowering our partners to expand their businesses. This complex task presents a remarkable opportunity to create extraordinary solutions that impact global travel. From building supplier infrastructures that enhance our partners' businesses to innovating marketplace features that propel our growth, you will have the chance to craft incredible solutions at GetYourGuide.Whether you're engaged in developing dynamic search algorithms or designing new features to accelerate our company's growth, your contributions will leave a lasting impact. Our teams consistently push boundaries, exploring innovative ways to bring the magic of travel to people around the world.We operate in cross-functional mission teams composed of backend and full-stack engineers, mobile engineers, data engineers, product managers, and designers.

Role overview Delivery Hero SE seeks a Senior Backend Engineer to join its AdTech team in Berlin. The focus is on developing and maintaining backend systems that power advertising technology products and services. What you will do Design and build scalable backend systems tailored for AdTech applications. Collaborate with engineers, product managers, and cross-functional teams to deliver features that enhance performance and user engagement. Create solutions that adapt to evolving customer and business requirements. Location This position is based in Berlin.