Senior Full Stack Engineer
Summary
Hands-on Technical Lead role focused on Java/Spring backend engineering with occasional React+TypeScript frontend work, building microservices in an agile, cloud-native environment for client projects delivered via Mindbox's consulting model.
At Mindbox we connect top IT talents with technology projects for leading enterprises across Europe.
We are seeking an experienced Technical Lead with a primary focus on Java/Spring backend engineering and the ability to contribute to React + TypeScript UI delivery as needed. This is a hands-on leadership role, requiring strong technical depth, design capability, and proven experience leading teams in building resilient, production-ready solutions.
You will work in an Agile environment to design, develop, and deploy high-quality services utilizing modern microservices patterns, API-first principles, and containerized cloud-native architectures. This role offers a blended experience of technical leadership and active coding while mentoring others.
Sounds like your kind of challenge?
- Flexible cooperation model
- Hybrid work setup – remote days available depending on the client’s arrangements - 1 day a week from the office in Kraków
- 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
- 8+ years of enterprise application development with strong Backend Engineering focus
- 2+ years in formal technical leadership, including mentoring and technical delivery ownership
- Strong experience with Java and Spring ecosystem (Boot, Data, REST, Security)
- Hands-on experience with microservices architecture and micro-database design patterns
- Understanding of event-driven systems and integration patterns
- Working knowledge of ReactJS and TypeScript (able to deliver UI features when needed)
- Proficiency in API design and documentation using Swagger/OpenAPI
- Practical automated testing skills: JUnit, Mockito, H2, HTTP testing tools
- Hands-on experience with batch processing jobs (Spring Batch or similar)
- Strong expertise in error handling, logging, and observability practices
- Practical experience with containerization and orchestration: Docker, Kubernetes
- Exposure to cloud-native services development and deployment
- Familiarity with static code analysis and security scanning tools
- Strong Agile delivery experience (Scrum, Jira, Confluence)
- Domain experience in Risk and Compliance, particularly Model Risk Management
- Familiarity with Spring Integration, Spring Batch extensions
- Knowledge of WebSockets, SSE, or binary protocols
- Experience with Workflow Engines (e.g., BPMN, Flowable, Activiti, Drools)
- Exposure to Micro-frontends architecture and modularization best practices
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.