Senior Backend Engineer (Node.js/Java)
Location: Must be based in or willing to relocate to Berlin, Germany. The role requires at least 80% on-site presence in the Berlin office, with 20% flexibility for remote work within Germany.
Company
Bonial is a leading digital advertising partner for offline retail, connecting millions of users with their favorite brands through platforms like kaufDA and MeinProspekt.
What you will do
- Drive the migration of legacy services to a modern architecture using Node.js.
- Own backend components within a cross-functional team to deliver end-to-end features.
- Design and implement REST APIs on AWS infrastructure.
- Monitor production services to ensure high performance, scalability, and reliability.
- Collaborate with product managers and frontend engineers to ship high-quality features.
- Utilize AI tools and agentic workflows to maximize development productivity.
Requirements
- Fluent in English (spoken and written).
- Strong experience in Node.js and/or Java 21+ (Spring Boot).
- Hands-on experience with AWS, Docker, and Kubernetes.
- Proficiency with PostgreSQL and Elasticsearch.
- Experience with distributed systems, microservices, and inter-service communication.
- Must be able to work on-site in Berlin at least 80% of the time.
Nice to have
- Experience with CI/CD pipelines.
- Familiarity with AI copilots and LLM agents.
- Bachelor or Master’s degree in Computer Science or related field.
Culture & Benefits
- Visa sponsorship provided for international candidates.
- 28 days of holiday plus extra days for tenure and special occasions.
- Free lunch at the office and access to a fully equipped gym.
- Corporate pension scheme and mental health support via nilo.health.
- Support for professional development and a strong feedback culture.
- Sustainability initiatives through the internal Green team.
