About this role

Backend Developer Mindbox Sp. z o.o. Daily tasks: - 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 Musts: Java, Spring, Boot, Kubernetes, Cloud, AWS, CD pipelines, Jenkins, GitHub, Maven, Groovy, Jira, REST API, Swagger, OpenAPI, Microservices architecture, JSON, Security, Protocols, OAuth, API Gateway, TDD 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. 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

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