Backend Developer

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

We are seeking a Senior Java Developer to join our Messaging Delivery Platform team, responsible for delivering critical capabilities that enable communication with customers through multiple outbound channels. The platform is in the process of modernization and standardization, bringing opportunities to work on distributed systems using modern technology stacks in an Agile product team environment.

This role ensures delivery of high-quality, efficient, and secure solutions aligned with enterprise requirements, technical best practices, and industry standards.

Sounds like your kind of challenge?

• Flexible cooperation model
• Hybrid work setup – 2 days per 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

• Extensive hands-on experience with Java (8/11+) and Spring Boot, delivering enterprise-grade applications.
• Proficiency in Kubernetes for container orchestration and deployment.
• Strong practical experience with Cloud technologies (AWS preferred).
• Knowledge and implementation experience of CI/CD pipelines using tools such as GitHub, Jenkins (shared libraries), Maven, Groovy, and Agile practices.
• In-depth understanding of API design standards and best practices:
  • Swagger and OpenAPI 3.0, REST, JSON, Microservices.
• Experience with authentication/authorization frameworks (OAuth 2), and API gateways (e.g., Kong API Gateway).
• Familiarity with Agile testing discipline including TDD, as well as solid experience in Agile/Scrum environments.
• Ability to translate business requirements into technical solutions, providing innovative and scalable designs.
• Commitment to continuous learning and staying informed on current tools and technologies.

Nice to have:

• Experience driving platform modernization initiatives.
• Exposure to observability solutions and performance optimization.

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.