Top Software Engineer Jobs in Cologne

Architect, develop, and scale cloud services, dashboards, and data pipelines to support robotics and autonomous vehicle telemetry. Integrate IoT devices with Azure services, build APIs/microservices, implement observability and CI/CD, validate systems in lab and field, and mentor junior engineers.

Design, develop, and maintain scalable Python/Django backend services and RESTful APIs for financial products. Implement data models, write tests, optimize performance, ensure availability and security, participate in code reviews, and collaborate with cross-functional teams to deliver features and maintain production systems.

Design and implement complex customer-facing frontend features using TypeScript and React. Provide technical leadership, mentor junior engineers, drive frontend architecture and best practices, improve performance and accessibility, partner with product/design, integrate with backend APIs, and manage technical debt and scalability.

We are seeking a software engineer to build and validate resilient distributed systems, enhance CI pipelines, and improve testing strategies for cloud applications.

Develop and maintain open-source, silicon-optimized AI/ML inference application packages (Inference Snaps) for Linux/Ubuntu Core. Debug, write high-quality code, review upstream contributions, secure and optimize local inference deployments across embedded devices to gateways, and collaborate with a distributed team and stakeholders.

Design, implement, and maintain cross-platform C++ features for Multipass on macOS and Windows. Lead architecture, mentor peers, write high-quality tested code, review contributions, debug user issues, collaborate with a distributed team, engage the open-source community, and support customers.

Lead platform bring-up and validation of Wayves AI stack on automotive hardware. Port and configure Linux/QNX/AUTOSAR systems, integrate drivers and middleware, automate flashing and tests, and collaborate with OEMs, Verification, and Release teams to ensure robust CI/CD and hardware integration.

Build and modernize Mozilla’s Add-ons platform, including automated moderation pipelines, Reviewer tools, DevHub, internal developer platforms, and production services. Improve CI/CD, observability, reliability, testing, deployments, incident response, and engineering standards. Collaborate with engineers, product managers, designers, QA, reviewers, and contributors while mentoring peers, documenting systems, and delivering iterative improvements.

Design, build, and ship AI-powered product features from prototype through production. Own architecture, model selection, integrations, evaluation, reliability, cost, and latency. Work across frontend, backend, and infrastructure while establishing reusable AI development practices. Collaborate with engineering and product teams to define requirements, identify risks, and deliver maintainable, monitored, production-ready systems using LLMs, embeddings, RAG, vector databases, and multiple providers.

Develop instrument control and data analysis software for laboratory diagnostics within cross-functional Scrum teams. Start as a developer or automated tester, collaborate across biology, chemistry, mechanics, electronics and software, and may advance into senior engineering, product ownership, architecture or verification roles. Work based in Hilden with occasional international site visits.

As a Senior Software Engineer, you will enhance the REDAPL platform, leading initiatives in data ingestion, processing, and supporting infrastructure-related projects while mentoring other engineers.

Build and own the architecture for Dune’s curated data lifecycle, including dependency-aware orchestration, backfills, schema evolution, retries, recovery, data quality, and alerting. The role combines backend software engineering with large-scale data systems work across Go, Kotlin, Rust, Python, and SQL. Responsibilities include designing ingestion and curation contracts, making architecture decisions, solving ambiguous problems, and leading work that other engineers can execute.

Design, implement, and operate scalable, multi-cloud distributed infrastructure and core services (TypeScript, Kotlin, Go). Optimize compute, storage, networking, and observability; support event-driven architectures; own end-to-end deployment and production reliability; implement disaster recovery and business continuity; collaborate with engineering, AI and security researchers to enable high-velocity product development.

Design and implement the core components of the Agents Python framework, focusing on API and abstraction development for AI-driven applications.

Design and develop functionalities for the Agents framework, iterate on feedback, and create documentation while working with various programming languages.

Design and build scalable software systems for an equity management and financial reporting platform. Engineers collaborate with product managers and designers, develop robust full-stack features, work with complex financial data and compliance requirements, participate in architecture discussions and code reviews, and help shape technical direction. Responsibilities may span core equity logic, reporting, AI systems, or tax capabilities, with opportunities to mentor engineers and own key platform features.

Design, build, and maintain Python and Linux shell scripts and automated ETL pipelines for data extraction, transformation, and loading. Validate and debug data flows, optimize performance, conduct peer code reviews, and collaborate with cross-functional teams to deliver reliable production data solutions and improve automation.

Design, develop, and maintain scalable server-side components for the Joybuy online shopping experience. Implement modular microservices, APIs (GraphQL/REST), and CI/CD pipelines, contribute to architecture decisions, estimate and break down tasks, document best practices, and work onsite in London.

Design and develop core backend components for a blockchain network using Rust, ensuring reliability and scalability in production-grade software.

Design, build and ship native Android features for an AI-enabled neobank using Kotlin. Implement secure, performant user flows for payments, insurance and financial services, integrate REST APIs, improve app stability and performance, use analytics to iterate, and incorporate on-device AI where it improves the user experience.

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

The role involves creating and automating infrastructure features for data platforms using Python, with a focus on distributed systems and collaboration within a global team.

Join Canonical's OpenStack Engineering team to develop and manage Charmed OpenStack and Ceph, focusing on Python code and infrastructure automation.

The role involves automating OpenSearch operations by developing features in Python, collaborating with an international team, and providing expertise on data platforms.

The role involves collaborating with a distributed team to develop and debug software for Linux, focusing on high-quality code and system-level issues.