Full-Stack Developer / Visualisation Senior

Full-Stack Developer / Visualisation Senior

Miejsce pracy: Kraków

Technologies we use

Expected

• React.js
• TypeScript
• HTML
• CSS
• Express.js
• Node.js
• Git

Operating system

• Windows

About the project

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.

This is how we organize our work

This is how we work

• agile

Your responsibilities

• 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
• Note: Detailed project information will be shared during the recruitment process.

Our 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

Optional

• 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

What we offer

• 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

This is how we work on a project

• Continuous Deployment
• Continuous Integration
• testing environments

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.