Senior Java Backend Engineer @ Source Angel
(práce v Polsku)

Senior Java Backend Engineer @ Source Angel

Polsko

About the Project 

Be one of the first on a fresh team for a Nordic client — entrepreneurial energy, proven foundation. 

You’ll join a newly formed core team that is rebuilding a widely-used automotive SaaS platform from scratch using modern technologies and AI-first development principles. 

The system supports over 1,500 car repair shops across Europe — from workshop management to integrations with finance, logistics, and more. The client is part of a global software group (190+ companies in 34 countries), which offers long-term stability, strategic support, and room for innovation, while keeping full autonomy in the local product strategy. 

This is a long-term greenfield modernization project with high technical standards and a strong emphasis on scalability, security, clean architecture, and future AI integration. 

The tech stack is still evolving, and youll have the opportunity to actively shape it. 

Tech Stack 

• Languages: Java 21 + Spring Boot 3 (main), also Go / Node.js in parts
• Infrastructure: Docker, Kubernetes (Helm/Terraform), OVH or managed cloud
• Databases: PostgreSQL, MongoDB, Cassandra
• Messaging: RabbitMQ (initial), Kafka (future)
• CI/CD: GitHub Actions, ArgoCD, GitLab CI
• Security: Zitadel (OAuth2/OIDC)
• Observability: Prometheus, Loki, OpenTelemetry, Jaeger, Grafana
• Docs/Planning: Jira, Confluence, Markdown/AsciiDoc

What We’re Looking For 

• 5+ years of backend development experience
• Proficiency in Java and microservices architecture
• Solid experience with Kubernetes, Terraform, Docker
• Strong awareness of security best practices in backend and cloud-native environments
• Understanding of scalable systems and API design
• Experience working in agile, distributed teams
• Fluent English communication across distributed teams

Bonus if you have: 

• Experience with AI/ML integration or event-driven systems
• Background in multi-tenant SaaS platforms

Onboarding & Performance Expectations 

First 30 Days 

• Collaborate with the team to define architecture standards, CI/CD pipelines, and observability tooling
• Develop a functional microservice prototype following agreed design patterns and platform technologies

First 90 Days  (to be refined together with the candidate based on strengths and focus areas) 

• Take ownership of migrating one or more critical legacy services to the new architecture
• Share insights, technical recommendations, and improvement ideas based on hands-on experience

Ongoing Success Metrics 

• Will be defined collaboratively with the candidate and reviewed regularly to ensure mutual alignment and growth

We’re Source Angel - a Danish-rooted software company with development centers in Ukraine, Poland, and Romania. For 8+ years, we’ve been building dedicated tech teams for global clients, focusing on long-term partnerships and a strong people-first culture. 

We foster an environment of respect, transparency, and professional growth, offering engineers freedom with responsibility, collaborative Scandinavian leadership, and an international mindset. 

Why Join Us 

• Work on a greenfield rebuild of a successful international platform
• Take ownership from day one in a flat, transparent environment
• Long-term opportunity with a stable, well-funded product
• Collaborate with an experienced and supportive multinational team
• Opportunity for future relocation to Denmark or other projects around the world

We Offer: 

• Exciting projects with Denmark’s most dynamic clients
• We provide the necessary equipment for your work
• For B2B contractors, we also assist with opening and maintaining your sole proprietorship (jednoosobowa działalność gospodarcza) in Poland
• An attractive salary package matching your experience and responsibilities
• Office located centrally in Warsaw
• Flexible work location can be arranged in coordination with the team lead
• 20 days of paid vacation
• Paid sick leave
• Medical insurance
• Local Danish managers offering mentorship and helping you grow communication and interpersonal skills

,[Design and build microservices using DDD (Domain-Driven Design) , Define and maintain REST/GraphQL APIs with OpenAPI or similar , Collaborate with DevOps to implement CI/CD, containerization, and GitOps workflows , Set up observability and metrics using Prometheus, Grafana, Loki, Jaeger , Integrate security/auth using OAuth2, OIDC, SCIM , Participate in architecture reviews, mentoring, and documentation , Help migrate legacy systems to a new cloud-native platform , Work closely with a Danish-based tech lead and distributed team ] Requirements: Java, AI, ML Additionally: Private healthcare, International projects.

Kategorie

backend

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