Full-Stack Developer/ Visualisation Senior

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

We are looking for an experienced Full-Stack Developera/ Visualisation Senior to lead the development and support of internal web applications built on enterprise data platforms. This role offers the opportunity to work on end-to-end delivery , from design and architecture through implementation and support , in collaboration with design, data engineering, and DevOps teams .

You will take ownership of building modern, reusable, and scalable UI components , as well as implementing APIs and data-serving layers to ensure intuitive and data-driven user experiences for internal stakeholders.

Sounds like your kind of challenge?  

What you get in return

Flexible cooperation model

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

Daily tasks

• Design and develop reusable, high-quality software components for data-driven web applications
• Build intuitive, user-friendly interfaces with a strong emphasis on usability and performance
• Design and implement REST APIs to expose data from the enterprise Data Platform
• Collaborate with UI/UX designers, data analysts, GCP BigQuery engineers, and DevOps teams to ensure seamless integration and product delivery
• Establish and maintain engineering best practices, including coding standards, code reviews, and maintainability principles
• Participate actively in continuous improvement, proposing enhancements in tooling, workflow, and delivery methods

Requirements

Minimum 3 years’ experience as a full-stack developer with strong hands-on coding experience

Proven front-end expertise : React.js, TypeScript, HTML/CSS, Express.js

Experience building RESTful services using Node.js

Good working knowledge of Git (branching, pull requests, CI/CD integration)

Practical experience with unit testing and automated testing frameworks

Strong sense of ownership with the ability to deliver independently and proactively

Fluent English communication skills, verbal and written

Nice to Have

Familiarity with Figma for UI design collaboration

Knowledge of SQL databases , ideally Google BigQuery on GCP

Experience with advanced data visualisation libraries and tooling : ReactFlow, D3.js

Understanding of TanStack tools (Query/Router), Vite for build optimization

Exposure to Playwright or similar E2E testing frameworks

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.

Must have: React, TypeScript, HTML, CSS, Express.js, REST API, Node.js, Git, CD, Testing, Communication skills

Nice to have: Figma, UI design, SQL, Google BigQuery, GCP