Fullstack Developer (Frontend-Focused) w Kraków, Polska

Expected, https://jobeax.com/link/6WcBICn0LM558SP0, TypeScript, https://jobeax.com/link/Z30sZYC3jcRenVso, Java, Spring Boot

Operating system, Windows

About the project, As a Full Stack Developer, you’ll work across the entire stack, focusing on React/Next.js TypeScript frontend (~70%) and Java (Spring Boot) backend (~30%)., , You’ll design engaging, performant, and accessible interfaces, build seamless API connections, and ensure full product functionality aligned with modern engineering standards in a cloud native environment., , Sounds like your kind of challenge?

This is how we work, at the client's site, agile

Your responsibilities, Develop and maintain React/Next.js (TypeScript) frontends with focus on UX performance, accessibility, and code quality., Implement user facing features, reusable UI components, and state management logic, following best practices and design guidelines., Integrate frontends with Java (Spring Boot) services and APIs – support backend data flows when needed., Ensure end to end delivery of product features – from API integration to UI and interaction layer., Collaborate with UX designers, backend engineers, and data teams to refine features and deliver complete user journeys., Write clean, secure, and reusable code with solid testing coverage (JUnit, Vitest, Playwright)., Contribute to performance, observability, and code reliability standards throughout the stack., Note: Detailed project information will be shared during the recruitment process.

Proven experience with React + TypeScript and modern frontend architecture., Hands on understanding of https://jobeax.com/link/Z30sZYC3jcRenVso, state management, and data fetching patterns., Familiarity with Java/Spring Boot backend development and API integration., Experience collaborating on cross functional product delivery., Understanding of observability and monitoring tools., Exposure to automated testing practices across frontend and backend layers., Curiosity, collaboration, and a structured problem solving mindset.

Optional, Developers with understanding of data or experience in data engineering (Spark, including event driven processing) are very welcome., Experience in cloud native environments., Practice with infrastructure as code and deployment automation.

Division of working time, React/Next.js TypeScript Frontend - 70%, Java (Spring Boot) Backend - 30%

What we offer, Flexible cooperation model, Hybrid work setup – 2 days per week in 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.