Senior Software Engineer gesucht in Berlin

• Own backend robustness: Improve and maintain core backend components with a focus on correctness, performance, and long-term maintainability
• Solve complex business logic: Identify and fix edge cases caused by heterogeneous customer data and evolving requirements
• Improve database performance: Analyze and optimize slow queries, data access patterns, and schema decisions as data volume increases
• Build pragmatic solutions: Extend existing systems carefully, choosing simplicity over premature optimization & abstraction
• Collaborate on operations where it matters: Contribute to infrastructure, CI/CD, observability, and deployment improvements that directly impact backend stability and scalability
• Work closely with the team: Collaborate with other engineers and product to turn real operational needs into reliable backend behavior

• Proven experience as a Senior Software Engineer
• 2+ years of experience with Python in production systems
• 2+ years of experience with Django
• Strong problem-solving skills
• Hands-on experience with PostgreSQL, including data modeling and query optimization
• Experience designing and implementing RESTful APIs
• Proficient with Git and collaborative workflows (feature branches, pull requests, code reviews)
• Experience writing automated tests to ensure reliability and prevent regressions
• Ability to make pragmatic technical decisions, avoiding overengineering while maintaining high standards
• Experience working with AWS ECS and containerized deployments in production environments
• Clear, collaborative communication in English
• Nice to have: Prior exposure to financial or data-heavy systems
• Core hours: 10:00 to 16:00 CET

We use retrospectives and reviews to openly discuss what worked, what caused friction, and how to improve collaboration and handovers together

Real focus on development

Regular development talks, documented progress, and concrete next steps to support your growth

Flexible work setup

Remote within Europe, with clear expectations around collaboration

️ Flexible contract model

Freelance option available for candidates outside Germany. No agencies

Competitive compensation

Based on experience, responsibility, and impact