Junior Backend Engineer (f/m/x) Platform (API & Data)

Intro

Hamburg Hybrid (2–3 days/week onsite) | €55.000 - 60.000 p.a. | 30 Days Vacation | English B2

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.

suena energy is a green tech startup specializing in algorithmic energy trading for energy storage systems and renewables.

Our vision: a world where clean energy is used reliably, economically, and intelligently. Our AI-powered software maximizes the revenues of large-scale energy storage and renewable assets on European short-term power markets—while minimizing risk.

We're a 50+ person team that's fast-paced by nature, but the kind of place where people actually look out for each other. Following our successful Series A, we're investing in expanding our team – and we're excited to strengthen our team with new talent and continue growing together!

Quick Check: Is this your Engineering Playground?

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…