Full Stack Developer

About the project

As a Full Stack Developer, you’ll work across the entire stack, focusing on Java (Spring Boot) backend (~75%) and React/Next.js TypeScript frontend (~25%). You’ll design robust APIs, data flows, and responsive UIs aligned with modern engineering standards in a cloud-native environment.

Sounds like your kind of challenge?

This is how we organize our work

This is how we work

• at the client's site
• agile
• kanban

Your responsibilities

• Develop and maintain Java (Spring Boot) backend services and React/Next.js frontends.
• Ensure end-to-end delivery of product features, integrating APIs, data, and UI.
• Collaborate with UX, backend, and data teams to refine features and user journeys.
• Write clean, secure, and reusable code with solid testing coverage (JUnit, Vitest, Playwright).
• Support observability, performance, and code quality standards.
• Note: Detailed project information will be shared during the recruitment process.

Our requirements

• Proven experience with Java/Spring Boot backend development.
• Strong skills in React + TypeScript application development.
• Familiarity with state management and data-fetching patterns in frontend apps.
• Hands-on experience with database design and migration.
• Understanding of observability practices and monitoring tools.
• Exposure to automated testing strategies across the stack.
• Curiosity, collaboration, and structured problem-solving mindset.

Optional

• Developers with an understanding of data or experience in data engineering (Spark, including event-driven processing) will be welcome.
• Knowledge of Next.js or other modern frontend frameworks.
• Experience in cloud-native environments.
• Practice with infrastructure as code and deployment automation.

What we offer

• Flexible cooperation model
• Hybrid work setup – 2x/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

This is how we work on a project

• Continuous Deployment
• Continuous Integration

Benefits

• sharing the costs of sports activities
• private medical care
• sharing the costs of professional training & courses
• life insurance

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.

Mindbox Sp. z o.o.

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

Our focus is on matching your skills with work that matters – projects that use modern tech stacks, solve real business challenges, and give you space to grow. By joining us, you’ll deliver technology solutions for well-known brands, supported by the Mindbox team that values knowledge-sharing and continuous development. We make sure you have the tools, flexibility, and guidance to do your best work – and to keep moving forward in your career.