BACKEND DEVELOPER

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'll be doing • 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 Note: Detailed project information will be shared during the recruitment process. 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 Who we're looking for • 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. Ready to take the next step? Submit your application! We look forward to reviewing your profile 😊 Know someone who might be a great fit? Feel free to share this opportunity using the referral link: Mindbox Referrals System