Fullstack Engineer

Technologies we use

Expected

• Java
• React.js
• HTML
• CSS
• PostgreSQL
• Git
• SQL

Optional

• React
• TypeScript
• Azure Data Factory
• Databricks
• Microsoft Power BI
• Bicep
• Razor
• WinForms

Operating system

• Windows

About the project

Are you passionate about building robust backend systems while crafting sleek, intuitive frontends? We’re looking for a Fullstack Engineer (CollabHUB) to join our dynamic team and contribute to a platform that powers intelligent collaboration solutions.

Sounds like your kind of challenge?

This is how we organize our work

This is how we work

• you focus on a single project at a time
• you focus on product development

Your responsibilities

• Contribute to CollaborationHub solution design and technical direction.
• Design, build, and maintain LakeHouse and WorkSync solutions.
• Develop and maintain backend services and Web APIs using Java.
• Build and maintain frontend features with React, HTML, and CSS.
• Design and manage PostgreSQL databases, including data models and SQL queries.
• Integrate services, APIs, and data flows across the platform.
• Write and execute tests; participate in QA, defect investigation, and release validation.
• Note: Detailed project information will be shared during the recruitment process.

Our requirements

• Minimum 5 years of experience in a similar role.
• Strong knowledge of SQL (PostgreSQL), database design, and data modeling.
• Proficiency in Java, Web API development, and backend services.
• Hands-on experience with React (or other JS frameworks), HTML, CSS.
• Familiarity with ETL/ELT pipeline development.
• Understanding of Software Development Life Cycle (SDLC).
• Version control experience with Git.Strong problem-solving skills and attention to detail.
• Excellent interpersonal and communication skills.
• English level: B2+

What we offer

• Hybrid work setup – 6x/month 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

• documentation

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.