Top Software Engineer Jobs in Hamburg

The Software Engineer, Platform will design and maintain backend services, optimize APIs, collaborate on B2B solutions, and ensure alignment with product strategy.

The Software Engineer will manage data collection and processing to enhance AI model training, collaborating with scientists and extending cloud infrastructure.

Own and develop the data warehouse and customer application for a predictive-maintenance product. Build scalable full-stack features, optimise async processing and queries, improve reliability and observability, design architecture, write maintainable tests, and participate in code reviews and technical planning.

Develop and improve cloud-native microservices and Kubernetes operators (including open-source work). Build highly available cloud infrastructure, automate end-to-end tests via CI/CD, collaborate with customer teams, enable Day 2 operations, and share knowledge across Reply and client teams.

Build and maintain full-stack features across NestJS TypeScript backends and React/React Native frontends. Plan architecture, extend GraphQL APIs, integrate third-party services, ensure security and scalability, contribute to CI/CD/DevOps, collaborate with product owners, write technical documentation, and prioritize delivering high-quality UX in an agile, cross-functional team.

Design, implement and maintain full-stack features across NestJS (TypeScript) backends and React/React Native frontends. Extend GraphQL APIs, integrate third-party services, influence architecture and roadmap, ensure quality via testing/CI-CD, produce technical documentation, and collaborate with product owners to deliver scalable, reliable SaaS solutions.

Build and maintain the justtrack SDK across mobile and web platforms (focus on iOS). Write clean, tested code, maintain CI/CD pipelines, document SDKs, support external developers with integration, and collaborate on backend interactions and product decisions.

Lead organization-wide software and AI engineering strategy, design scalable cloud-native systems, drive deployment and data integration best practices, and deliver rapid prototype-to-production solutions. Own LLM and ML strategy including model fine-tuning, RAG, AI evaluation, and observability. Mentor technical leaders, shape developer experience and knowledge management, and represent engineering at executive and industry levels.

Build and scale a blockchain data platform handling petabytes of on-chain data. Design and implement distributed systems, data ingestion/decoding pipelines, and performant SQL processing. Write production code (Kotlin, Go, Java, Rust), improve developer experience, automate operations (including AI-driven automation), and own platform components.

Own and build the production Android client using Kotlin, integrating AI features (chat, vision, voice), optimizing performance and memory, designing AI UX patterns, implementing analytics/logging, and collaborating with backend and ML engineers to ensure stability, security, and scalability.

Build and maintain a production-grade iOS application using Swift and SwiftUI with AI-native interactions. Integrate AI features via backend APIs and on-device inference, design resilient AI UX patterns, optimize performance and battery, capture user signals for evaluation, and ensure App Store quality and production reliability while collaborating with backend and ML teams.

Lead design and development of low-level Linux instrumentation and eBPF-based runtime security features for detection, monitoring, and workload protection. Drive architecture, implement performance-sensitive systems, establish testing methodologies, deliver end-to-end features, and provide technical leadership and cross-team collaboration across Datadog's security products.

As a Backend Software Engineer, you'll design scalable backend systems, optimize database performance, and collaborate with front-end and DevOps teams.

Contribute to Juju's development, collaborate with teams on distributed systems, debug issues, and enhance cloud automation features.

Develop and optimize algorithms for battery and renewable energy projects, analyze market data trends, and ensure algorithm performance.

Design and implement backend trading services, own features end-to-end (schema, API, tests, UI integration), contribute to real-time infrastructure and client-facing APIs, and write integration tests against real dependencies.

Software Engineers at QuantCo will design and develop scalable solutions, integrate models into client businesses, and improve products based on client feedback.

As an Ubuntu Core Software Engineer, you will design and implement features for the embedded Linux operating system, maintain boot mechanisms, debug system-level issues, and collaborate with a global team.

Full-stack Developers at QuantCo build user interfaces for machine learning solutions, collaborating with data scientists and engineers to deliver actionable products.

Build and own end-to-end backend systems for forecasting and agentic LLM research: design, deploy, monitor, debug, and harden features and pipelines (benchmarks, agents, production services). Prototype quickly, work with LLM APIs and coding agents, and collaborate with researchers to improve evaluation and forecasting tools.

Design, build, and maintain scalable, secure cloud-native software and microservices on GCP. Lead architecture, implement CI/CD, manage GKE and Confidential Compute, integrate APIs for AI/ML outputs, enforce security best practices, mentor engineers, and operate monitoring and logging for mission-critical analytics environments.

Build and operate large-scale Azure AI services for multimodal model inference (audio, image), design scalable distributed architectures, debug and optimize across the stack, operate global cloud services, collaborate with partners, and drive technical excellence with full-stack ownership from infrastructure to APIs.

The role involves developing GPU Monitoring features and maintaining eBPF functionality, debugging production issues, and contributing to product architecture in Datadog's Agent over various Linux environments.

The Software Engineer will develop backend systems using Rust, manage multimodal data, and improve data infrastructure with a focus on performance and design ownership.

Build and maintain backend services, APIs and workflows for an AI neobank. Support financial products (payments, wallet, savings, investing, insurance), integrations with banks and partners, ensure reliability, security, observability, and regulatory readiness while collaborating with product and mobile teams.