Must have

• Java

• English (B2)

Nice to have

• AI

• ML

Requirements description

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 you'll 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

Offer description

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

Your responsibilities

1. Design and build microservices using DDD (Domain-Driven Design)
2. Define and maintain REST/GraphQL APIs with OpenAPI or similar
3. Collaborate with DevOps to implement CI/CD, containerization, and GitOps workflows
4. Set up observability and metrics using Prometheus, Grafana, Loki, Jaeger
5. Integrate security/auth using OAuth2, OIDC, SCIM
6. Participate in architecture reviews, mentoring, and documentation

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