> Markdown version of [/jobs/ext/1432820-junior-backend-engineer-platform-api-data](https://www.wearedevelopers.com/jobs/ext/1432820-junior-backend-engineer-platform-api-data). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Junior Backend Engineer Platform (API & Data) - **Company:** suena - **Location:** Hamburg, Germany - **Experience:** Starter - **Salary:** €55,000.0 - €60,000.0 - **Contract:** Contract - **Skills:** Application Programming Interfaces (APIs), Amazon Web Services, Data Analysis, Code Review, Computer Programming, Databases, Continuous Integration, Database Design, Django Web Framework, Python (Programming Language), Machine Learning, Pair Programming, SQL Databases, Backend, Fastapi, Event Driven Architecture, Data Analytics, Real Time Data, Api Design, Data Pipelines, Docker, Legacy Systems - **Published:** July 25, 2026 - **Apply:** https://de.indeed.com/viewjob?jk=ba0b36036b7e0e6a ## About the Role Are you enthusiastic about intelligent and effective software solutions to the energy transition? Join us at suena energy as a Junior Backend Engineer (f/m/x) and become an essential part of our new platform team. You'll work side-by-side with experienced engineers on both APIs and data-driven backend systems, gaining hands-on experience in everything from database design to real-time integrations for next-generation energy trading. This is your chance to learn, grow, and have a real impact in a friendly, ambitious, and sustainable tech environment., Tech Stack: Python (Django/FastAPI), PostgreSQL/TimescaleDB, Redis, Celery, Docker, AWS, GitLab CI/CD, Sentry, Grafana * Your Focus: Support API and data projects, build and improve backend features, help connect real-time data and analytics, automate tasks, and contribute to both greenfield and legacy improvements * Team: Platform squad with Senior Engineers (API & Data focus), a Modelling expert, and direct CTO access-collaborative, async-friendly, pair programming, lots of mentoring * Product: Advanced energy trading & optimization platform, real-time APIs, data-driven, ML-integrated, high complexity * Who thrives here: Junior backend engineers eager to learn, contribute, and develop skills in both API and data/backend engineering * Must-haves: 1-3 years backend experience, solid Python skills, first experience with SQL databases, keen interest in APIs & data, willingness to learn new tools, collaborative mindset * Dealbreakers: No backend coding experience, no interest in both APIs and data, desire to work fully solo, * 1-3 years' experience in backend development (Python, ideally with Django or FastAPI) * Hands-on experience with SQL databases (e.g. PostgreSQL) and an interest in data-driven products * Eager to learn API design, event-driven systems, and cloud tools (AWS, Docker, CI/CD etc.) * Collaborative, proactive, and open to feedback-ready to work in a team and learn from others * Good communication skills in English (B2); bonus if you have worked in international or cross-functional teams * Dealbreakers: No backend coding experience, no willingness to learn both API and data topics ## Description * Work closely with Senior Engineers to help design, build, and optimize backend features and APIs * Support the development and maintenance of databases, data pipelines, and real-time integrations * Participate in automating workflows and improving reliability, scalability, and security across the platform * Collaborate with data science, modelling, and product teams to deliver features for energy trading and analytics * Contribute ideas and improvements-whether for new greenfield projects or for optimizing legacy systems * Grow your skills through code reviews, pair programming, and regular feedback in a supportive team environment, * People at the Core: Clear structures, democratic decisions, and a feedback culture where your voice counts. * 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. * Good Vibes: Yoga, shared lunches, after-work fun - we keep the energy up, even when it's busy. * Body & Mind: Urban Sports Club membership, wellbeing check-ins, and mental health support - your energy matters. * New Office: 10th-floor office with rooftop terrace, canteen, great views, ergonomic desks, hardware of your choice, and a pet-friendly environment. * 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) - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [Intro to FastAPI](https://www.wearedevelopers.com/videos/462-intro-to-fastapi) - [Docker Compose: Rediscovered](https://www.wearedevelopers.com/videos/1978-docker-compose-rediscovered) - [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) - [Nest.js - TypeScript in the backend can also be clean](https://www.wearedevelopers.com/videos/1033-nest-js-typescript-in-the-backend-can-also-be-clean) ## Related Articles - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs) - [What’s the Difference Between Frontend and Backend Development?](https://www.wearedevelopers.com/magazine/240-what-s-the-difference-between-frontend-and-backend-development) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs) - [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)