Principal Backend Engineer API Java Go Rust
- 15 + years of overall technology experience, including 10+ years in backend and microservices engineering.
- Strong background in API architecture, design, and development, including documentation, gap analysis, and data modelling.
- Expertise in Java (Spring Boot); additional experience in Go or Rust is beneficial.
- Advanced understanding of distributed system design, JVM tuning, and performance diagnostics.
- Hands‑on knowledge of containerisation (Docker, Kubernetes) and service meshes.
- In‑depth experience with Kafka (event streaming platforms) – cluster setup, configuration, producer/consumer development.
- Familiar with CI/CD, DevOps, and cloud delivery (AWS / Azure / Private Cloud), including network, firewall and IAM concepts.
- Expertise in observability and monitoring (Splunk, Grafana, Prometheus, Jaeger, Kiali, Open Telemetry).
- Strong SQL skills and understanding of distributed databases.
- Degree in Computer Science, Engineering or related field.
- Excellent communication, problem‑solving, and stakeholder engagement skills in English.
Preferred Experience:
- Background in financial applications, especially payments and core banking systems.
- Proven ability to design technical solutions within large global organisations.
- Experience mentoring and leading teams of engineers across geographically distributed locations.
- Keen interest in modern development practices: API‑first architecture, DevSecOps, Cloud‑native engineering, and Inner Sourcing.
Joining this project you’ll become part of Mindbox – a tech-driven company where consulting, engineering, and talent meet to build meaningful digital solutions. We’ll back you up every step of the way, accelerate your development, and ensure your skills make a difference.
At Mindbox we connect top IT talents with technology projects for leading enterprises across Europe.
Join a global engineering team building next‑generation payment processing capabilities as part of the organisation’s Future State Architecture programme.
This initiative focuses on creating a lean, reusable, and high‑performing payment engine that will underpin modern, scalable, and cost‑efficient transaction processing across the enterprise.
You will be part of a core team delivering backend and API‑driven solutions that prioritise speed, resilience, and quality—enabling new product features to be rolled out quickly and safely. Working in an inner‑sourcing model, you will collaborate globally to leverage existing software assets, enhance shared components, and drive the migration to cloud‑based infrastructure.
Sounds like your kind of challenge?
What you get in return
- Hybrid work setup – two days a week from the office
- Collaborative team culture – work alongside experienced professionals eager to share knowledge
- Continuous development – access to training platforms and growth opportunities
- Comprehensive benefits – including Interpolska Health Care, Multisport card, Warta Insurance, and more
- High quality equipment – laptop and essential software provided