Top Software Engineer Jobs in Cologne

Design, build, and lead development of AppGlass features; develop AI-first tooling and automation; implement enterprise integrations and deployments across Kubernetes and cloud; and improve reliability, testing, performance, and security for production use.

Develop and maintain foundational Kotlin core libraries used by many developers; contribute to language features, tools, and specifications; participate on a design committee; become domain expert in CS topics; write design documents; focus on API design and performance engineering.

Design and implement AI-powered UI features for JetBrains IDEs using Compose Multiplatform and Swing. Collaborate with designers, improve UI architecture and component reuse, ensure responsiveness and performance in complex desktop applications, and contribute to UI testing and developer tooling features.

Design and implement next-generation AI-powered features for JetBrains IDEs: integrate and enhance AI agents, build novel IDE capabilities, evaluate performance and reliability, and own end-to-end feature delivery.

Design, build, test, and operate high-throughput, secure cloud services and microservices on AWS. Collaborate with product and architecture teams, implement automated tests, monitor and optimize backend performance, document solutions, and participate in on-call rotations.

Designs and implements enterprise-scale cloud services for AEC data infrastructure. Collaborates with product and architecture teams to deliver scalable, secure Java/Spring microservices on AWS, drives architecture and performance optimizations, ensures automated testing and monitoring, mentors engineers, and participates in on-call support.

Build front-end and back-end infrastructure for the MetaMask Debit Card: design UI/UX across clients, develop scalable APIs and services, integrate with issuers and payment networks, ensure security and high-throughput transaction performance.

Build and enhance MetaMask consumer features (Stablecoin/Earn), implement user-facing solutions across Extension, Mobile, and Web, contribute to backend APIs and middleware, ensure secure and intuitive Web3 interactions, collaborate with product and design, participate in code reviews, and maintain high code quality.

Design, implement, and maintain desktop applications, cloud services, and automation testing. Lead architecture and feature implementation, perform code reviews, write unit/integration tests, support CI/CD and DevOps, and collaborate within Agile/Lean Scrum teams to improve product quality.

Own QA operations and release quality for civil engineering software. Collaborate with scrum teams to run manual and automated tests, design and maintain test cases, report and track defects, reproduce customer issues, automate dashboards/APIs, and improve testing processes to reduce product quality risk.

Design, build, operate, and support resilient distributed platform services. Write maintainable code, troubleshoot production issues, improve reliability and observability, and assist internal teams. Participate in on-call rotations and collaborate on platform evolution.

Lead design and implementation of 2D/3D web graphics features and frontend components for an embedded web viewer. Develop a cross-platform graphics engine, evaluate new technologies, leverage AI-assisted development tools, and collaborate with architects, product managers, and distributed engineering teams to deliver performant visualization and collaboration features.

Build and maintain full-stack product features for Assessments, Interviews, and Learn. Drive identity and authentication systems, write clean maintainable code, perform code reviews, collaborate cross-functionally, and lead technical design discussions to deliver business-impacting features.

Own and evolve a custom Chromium fork to evade anti-bot detection, reverse-engineer JavaScript challenges, build automated tooling and pipelines for evasion, develop observability for fingerprint mismatches, and mentor engineering on browser internals and stealth techniques.

Lead analysis and resolution of system performance issues across Akamai's distributed Linux platform. Design and implement scalable software and tools for performance detection, mentor engineers, and collaborate across teams to deploy efficient solutions.

The role involves leading architectural direction, developing cross-platform SDK solutions, ensuring quality standards, and mentoring team members in Android app development.

As a Principal Software Engineer at Autodesk, you will shape technical direction, solve complex design automation challenges, and collaborate with cross-functional teams to deliver user-facing products. You'll work hands-on with cloud-based systems and drive architectural decisions, contributing to sustainable solutions in design.

Responsible for developing and optimizing NVIDIA's AI platform, especially using JAX. Involves designing core components, collaborating with researchers, and enhancing efficiency in AI solutions.

The role improves Firefox development workflows, mentoring team members, collaborating for code review, and using data to identify trends.

The role involves architecting and developing cross-platform libraries in Rust and other languages, contributing to both mobile and web applications. Responsibilities include delivering complex features and ensuring a cohesive user experience across platforms.

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

The role involves architecting and implementing complex stream processing systems, driving technical strategy, simplifying code complexity, mentoring engineers, and enhancing system performance.

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.

Join a remote Europe-based senior C++ engineer talent pipeline to work on Windows PC games using custom engines or UE5. Maintain and develop game features and tools, collaborate with multidisciplinary teams, and regularly debug, profile, and optimize code. Must complete a technical test.

Lead accessibility engineering for a large web product: audit and prioritize remediation, ship technical fixes, build AI-assisted audit/remediation tooling, integrate accessibility into CI and Design System, run assistive-tech user tests, and drive cross-org accessibility adoption.