Backend Developer

O projekcie:
At Mindbox we connect top IT talents with technology projects for leading enterprises across Europe. 

 
As a part of an Agile, cross-functional team, you’ll play a critical role in designing and developing high-performance, distributed systems using modern technology stacks. Your responsibilities will include building APIs, ensuring top-tier code quality, and applying engineering best practices for security, compliance, and scalability.
 

Sounds like your kind of challenge? 

What you get in return

- Flexible cooperation model – choose the form that suits you best
(B2B, employment contract, etc.)
- Hybrid work setup – remote days available depending on the client’s arrangements - 2 days 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

Wymagania:
- Senior-level expertise in Java and Spring Boot development
- Hands-on experience with Kubernetes for container orchestration
- Practical knowledge of cloud environments (AWS)
- Solid understanding of CI/CD pipelines and tools: Jenkins (shared libs), GitHub, Maven, Groovy, Jira
- Strong REST API design skills with best-practices (Swagger, OpenAPI 3.0, microservices architecture, JSON)
- Knowledge of security and authorization protocols, especially OAuth 2.0; experience with Kong API Gateway
- Experience in Agile environments with practices like TDD, paired programming, automated testing
- Ability to translate business requirements into robust technical solutions
- Proven problem-solving skills and ability to provide innovative solutions
- Passion for learning new technologies and contributing to knowledge-sharing culture

Nice to Have

- Experience with message delivery systems, event-driven architectures
- Familiarity with observability stacks and performance tuning in cloud-native environments
- Mentorship experience, promoting engineering excellence within teams

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.

Codzienne zadania:
- Develop and deliver high-quality software applications in line with agreed requirements
- Work in a multi-disciplinary Agile team using modern design principles and evolving technologies
- Define, implement, and govern quality engineering standards, maintaining expert knowledge in the required tech stacks
- Write efficient, maintainable, and reusable Java code meeting Definition of Done, considering technical dependencies and NFRs (non-functional requirements)
- Conduct unit tests and contribute to automation test coverage using Agile testing methodologies (TDD)
- Ensure robust API design aligned with industry best practices (OpenAPI 3.0, Swagger)
- Collaborate closely with stakeholders, fostering clear communication and effective working relationships
- Champion continuous improvement in tooling, processes, and systems through innovation and best practices