Impress employers and recruiters.
Choose from hundreds of resume examples.

Impress employers and recruiters.
Choose from hundreds of resume examples.
Tailor your resume to this Senior Software Engineer (Fullstack) (m/w/d) role.
Rezi rewrites your resume against Lumenaza GmbH's job description. Free.

Tailor your resume to this Senior Software Engineer (Fullstack) (m/w/d) role.
Rezi rewrites your resume against Lumenaza GmbH's job description. Free.
Don't guess if your resume is good enough.
See how it scores against the Senior Software Engineer (Fullstack) (m/w/d) posting at Lumenaza GmbH — free, in seconds.

Don't guess if your resume is good enough.
See how it scores against the Senior Software Engineer (Fullstack) (m/w/d) posting at Lumenaza GmbH — free, in seconds.
About the Role
As a Senior Engineer (Fullstack), you will design and build core systems that power real-world energy processes - from billing to market communication. You take ownership of complex domains, contribute to architectural decisions, and help evolve both our systems and engineering practices.
Responsibilities
- Build and own core backend systems
- Design and implement scalable solutions for billing, tariff models and energy market processes
- Shape system architecture
- Work across the full lifecycle - from design to deployment - ensuring maintainability, scalability, and correctness
- Solve complex technical challenges
- Develop robust solutions involving data modeling, asynchronous processing, and distributed systems
- Collaborate closely with Product, Frontend and DevOps to deliver cloud-based solutions and improve our platform
- Drive improvement and innovation
- Bring in new ideas, improve engineering practices and explore modern development approaches, including AI-assisted workflows
- Modernize existing systems
- Help evolve and migrate legacy systems toward modern architectures
Requirements
- 5+ years of backend development experience
- Strong Python and Django expertise
- Experience designing and building REST APIs
- Experience with distributed systems / microservices
- Solid understanding of databases (PostgreSQL)
- Experience with Docker and CI/CD workflows
- Excellent communication skills in English
Skills
- FastAPI
- Pydantic
- Django Ninja
- Celery
- React
- TypeScript
- Python
- Django
- Django REST Framework
- PostgreSQL
- Redis
- Docker
- Kubernetes
- GitLab CI/CD
- Robot Framework
- Energy markets
- Regulated domains
Location
- Berlin Kreuzberg
Work Type
- Hybrid
Experience Level
- Senior
Benefits
- Competitive compensation
- Deutschlandticket
About the Company
- Lumenaza GmbH, through its brand Lumenaza.Community, is a leading provider of direct marketing for small-scale installations and a supplier of electricity for household tariffs ranging from fixed to dynamic contracts.
- The Lumenaza Community represents green, decentralized electricity generation.
- Since 2013, Lumenaza GmbH has also been supporting major energy supply companies such as EnBW and E.ON as a software and service provider, offering innovative solutions in billing, market communication, and virtual power plants.
- For more information, visit Lumenaza.Community and www.lumenaza.com.