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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Backend Engineer - API & Platform - **Company:** suena GmbH - **Location:** Hamburg, Germany - **Experience:** Expert - **Salary:** €70,000.0 - €85,000.0 - **Contract:** Contract - **Skills:** Application Programming Interfaces (APIs), Algorithmic Trading, Amazon Web Services, Data Analysis, Cloud Computing, Code Review, Continuous Integration, Distributed Systems, Django Web Framework, Python (Programming Language), PostgreSQL, Redis, Data Streaming, Systems Architecture, Systems Integration, Cloud Platform System, Grafana, Reliability of Systems, Backend, Fastapi, Build Management, Gitlab-ci, Sentry, Celery, Api Design, Docker, Legacy Systems, Crud - **Published:** August 24, 2026 - **Apply:** https://www.adzuna.de/details/5853089058 ## About the Role * Who thrives here: Engineers who think in systems, take ownership, and are energized by building things that actually matter * Must-haves: 5+ years backend experience, solid API & architecture background, Python, cloud deployment, German C1 * Dealbreakers: No API/architecture experience, pure CRUD background, no interest in complex distributed systems, * 5+ years of backend engineering experience, with a strong focus on API design and system architecture * Solid Python skills (Django and/or FastAPI); hands-on experience with PostgreSQL/TimescaleDB is a plus * Experience with distributed/cloud-based architectures (AWS preferred), Docker, CI/CD, async workflows (Celery, Redis) * You think beyond the ticket - you understand how systems connect and can make principled architecture decisions * Security-minded: authentication, authorization, zero-downtime deployments are familiar territory * Comfortable working across greenfield projects and legacy systems * German C1 is required for this role - we work closely with German-speaking external API partners and system integrators, and clear, direct communication in German is essential for this * English B2/C1 for internal collaboration * Nice to have: Experience or genuine curiosity about energy markets, trading systems, or related domains (finance, IoT). The domain is complex - enthusiasm to learn it matters. ## Description * Tech Stack: Python (Django/FastAPI), PostgreSQL/TimescaleDB, Redis, Celery, Docker, AWS, GitLab CI/CD, Sentry, Grafana * Your Focus: API design & architecture, backend integrations, data flows, system reliability and scalability * Team: Small, newly formed platform squad - you'll work closely with the Platform Lead, with strong support from our CTO in the early phase, * Design and build scalable, reliable APIs and backend integrations that connect trading, analytics, data science, and forecasting systems * Drive the architecture of suena's platform layer - from initial design decisions to production * Own data flows and backend automations across the platform * Collaborate closely with the Platform Lead, CTO, and cross-functional teams (trading, data science, modelling) to translate complex domain requirements into robust technical solutions * Improve and extend existing systems while keeping a clear eye on reliability, security, and performance * Contribute to technical standards, code reviews, and engineering practices as the team grows, * Shape the Future: Contribute to the energy transition by working on sustainable energy solutions in a growing market environment. * Connecting & Co-Creating: Strategy off-sites and onsite weeks for real collaboration and shared ideas. * Work Your Way: Home office and flexible hours - you know what works best for you and your team. * Team Spirit: Yoga, shared lunches, after-work fun - we support each other and keep the vibe strong, even when it's busy. * Fair & Transparent: Clear structures, democratic decisions, and a feedback culture where your voice counts. * Body & Mind: Urban Sports Club membership, wellbeing check-ins, and mental health support - your energy matters. * New Office Vibes: 10th-floor office with rooftop terrace, canteen, great views, ergonomic desks, hardware of your choice, and pet-friendly! * Sustainable Extras: Deutschlandticket, FutureBens, and more - supporting your mobility and future. ## Related Videos - [Inside Bitpanda's Tech Stack: Scaling a European Fintech Leader - Markus Dorner](https://www.wearedevelopers.com/videos/1979-inside-bitpanda-s-tech-stack-scaling-a-european-fintech-leader-markus-dorner) - [From Doubt to Confidence: How Sentry Uses Verdaccio to Bulletproof SDK Releases](https://www.wearedevelopers.com/videos/739-from-doubt-to-confidence-how-sentry-uses-verdaccio-to-bulletproof-sdk-releases) - [Reducing LLM Calls with Vector Search Patterns - Raphael De Lio (Redis)](https://www.wearedevelopers.com/videos/1714-reducing-llm-calls-with-vector-search-patterns-raphael-de-lio-redis) - [Rest API Antipatterns](https://www.wearedevelopers.com/videos/100208-rest-api-antipatterns) - [Meet Your New BFF: Backend to Frontend without the Duct Tape](https://www.wearedevelopers.com/videos/682-meet-your-new-bff-backend-to-frontend-without-the-duct-tape) - [Migrating half a million users to a new payment service provider](https://www.wearedevelopers.com/videos/730-migrating-half-a-million-users-to-a-new-payment-service-provider) ## Related Articles - [Backend Developer Salary in Germany [2023]](https://www.wearedevelopers.com/magazine/196-backend-developer-salary-in-germany-2023) - [Frontend Developer Salary in Germany [2023]](https://www.wearedevelopers.com/magazine/195-frontend-developer-salary-in-germany-2023) - [Finding Jobs in Germany](https://www.wearedevelopers.com/magazine/375-finding-jobs-in-germany) - [The Biggest German Tech Companies](https://www.wearedevelopers.com/magazine/424-the-biggest-german-tech-companies) - [Where to Find German Tech Jobs](https://www.wearedevelopers.com/magazine/366-where-to-find-german-tech-jobs) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs)