Junior Software Developer (React / Supabase) w Gliwice, Polska

  We are looking for a Junior Software Developer (React / Supabase)!
Do you love programming, solving real problems, and experimenting with new technologies? At MindPal , we’re building intelligent systems that power products across energy, education, and HR-tech — all from our office in  Gliwice .
We’re looking for a Junior Software Developer with  at least 1 year of commercial experience , who enjoys writing code, exploring new technologies, and turning ideas into working solutions. You don’t need to know everything yet — we value curiosity, a problem-solving mindset, and the motivation to grow.

• Type of contract: Contract of Mandate ( Umowa zlecenie ).

• Location: On-site, Gliwice.

• Compensation: 31.40–40.00 PLN gross/hour.

Scope of cooperation:

• Develop and maintain application features using React, TypeScript, and Vite .

• Work with Supabase , including PostgreSQL, authentication, and storage.

• Develop backend logic using Supabase Edge Functions and TypeScript.

• Integrate external services through REST APIs .

• Explore AI-powered tools and automation to improve the development process.

What We Value:

• 1+ year of commercial experience in software development.

• Good understanding of JavaScript/TypeScript and React fundamentals.

• Understanding of SQL, relational databases, and PostgreSQL fundamentals.

• Familiarity with REST APIs, asynchronous programming, and Git.

• Experience with Supabase, Firebase, https://jobeax.com/link/JSd7UYCSg572jJDY, or serverless functions is a plus.

• Communicative English and Polish at B2 level (written and spoken).

What We Offer:

• Long-term cooperation with opportunities to grow across frontend and backend development.

• The opportunity to work on-site at our office in Gliwice .

• Real projects for international clients using modern technologies.

• Access to AI-powered tools and automation supporting efficient project delivery.

• A collaborative team environment focused on knowledge-sharing, development, and ownership.

Sounds like you? You don’t need to be an expert in every technology we use. Bring your curiosity, willingness to learn, and passion for building things — we’ll help you grow from there!