Top Software Engineer Jobs in Cologne

As a Senior Developer, you'll contribute to architecture, design, and development of core platform products, drive innovation, and maintain applications.

As a Senior Engineer, contribute to Mozilla's localization projects, develop Python and JavaScript libraries, and support internationalization features across Mozilla products.

As a Backend Developer, you will design, implement, and maintain software on Windows systems, writing primarily in Rust and managing legacy code in C++. Collaborate with teams to ensure integration and participate in agile development processes.

Develop embedded software for optical transceiver modules, focusing on DSP and ARM systems, including driver software and algorithms.

As a Senior Blockchain Engineer, you will design and optimize smart contracts and blockchain infrastructure, collaborate with teams to ensure secure solutions, and lead development efforts in the DeFi ecosystem. You will analyze technologies, mentor staff, and enhance performance while maintaining security best practices.

As a Staff Software Engineer on the Growth team, you will lead technical projects impacting user acquisition, mentor engineers, and ensure system reliability and scalability.

The Staff Software Engineer will build backend capabilities for Kraken's platform, focusing on distributed systems and integrating AI functionalities while ensuring high standards of reliability.

Design, develop, and maintain mobile applications using React Native, focusing on user onboarding and experience optimization while mentoring other engineers and influencing technical strategies.

As a Senior Software Engineer at Kraken, you will collaborate with teams to develop onchain services, optimize applications, and mentor engineers, focusing on blockchain and DeFi technologies.

As a Senior Software Engineer at Kraken, you will design and maintain backend systems, SDKs, and APIs, enabling efficient growth engineering. You will improve internal tools, enhance developer workflows, and ensure system reliability across multiple teams.

Design, develop, and maintain payment processing systems. Optimize user experiences, ensure security, mentor engineers, and influence technical decisions.

As a Senior Software Engineer, you'll tackle high-impact problems by creating full-stack applications, collaborate across teams, and drive user engagement through strategic engineering solutions fitted for growth.

Design and implement robust Rust services for Kraken's core infrastructure, focusing on security, maintainability, and operational resilience in production environments, while collaborating with product teams and debugging issues across the stack.

The Frontend Engineer will enhance analytics tracking, optimize data flow and attribution models while collaborating across teams to ensure data accuracy and governance.

Design, build, and optimize high-performance AI infrastructure systems to support intelligent agents, ensuring reliability and scalability for millions of users.

Design and implement robust Rust services for trading and payments, focusing on performance and user impact while collaborating on distributed systems architecture.

The role involves developing scalable high-volume backend services for map and navigation software, collaborating with teams, and maintaining system quality.

Develop and maintain platform services for transportation products, focusing on both frontend and backend architecture, while collaborating with cross-functional teams.

Develop and maintain the Mapbox Maps Flutter SDK web platform support, implement SDK and app features, optimize performance and stability, manage testing and CI pipelines, collaborate across iOS/Android/web teams, produce documentation, and review code and designs to ship reliable releases.

As a Senior Software Engineer, you'll design, build, and scale the core systems and APIs of The Flex platform, focusing on automation, reliability, and performance.

Design and build backend systems for a flexibility engine, collaborating across teams and ensuring reliability for live deployments. Requires experience in distributed systems and maintainable code.

As a Senior Software Data Engineer, you will enhance and create data processing pipelines, monitor performance metrics, and enforce security practices within the Roads team at Mapbox.

Join Ververica as a Senior Software Engineer to solve complex data engineering problems using Apache Flink, mentor junior developers, and build data-intensive solutions.

The Junior Software Developer will collaborate on a cloud-native monitoring stack, developing features, debugging, and representing Canonical at events.

As a Senior Software Engineer, you will develop and manage a MongoDB solution on various platforms, ensuring reliability and security while contributing to a small team focused on impactful projects.