Matyáš Balcar

Full-stack developer · React / Node.js · Olomouc

Profile

Full-stack developer with around four years of commercial experience in web and enterprise applications. My experience with React, Node.js, REST APIs, SQL, and production C#/.NET development is complemented by a substantial personal Java/Spring Boot + React/TypeScript project. I work across the full feature lifecycle, from data model to interface, with a focus on useful software.

Experience

Elekt Labs s.r.o.

Software developer · C# / .NET / SQL · Czechia

  • Develop and maintain production software for manufacturing processes using C#/.NET, ASP.NET MVC, and WPF.
  • Design and modify database queries, reports, and backend logic; debug issues in a large existing system.

Railsformers

Full-stack / backend developer · Czechia

  • Contributed to web applications, REST APIs, and relational database work with React and Node.js.
  • Used Git, Docker, and code review to develop and maintain real application features.

IT4Innovations

Frontend developer · Ostrava

  • Built web interfaces and integrated frontend components with backend services.

Selected projects

CodeDuel — competitive programming platform

Java 21 · Spring Boot · PostgreSQL · React · TypeScript · Docker

  • Solo-built local MVP with accounts, matchmaking, timed duels, a leaderboard, and a web interface.
  • Asynchronous code evaluation in isolation, consistent duel results, and transactional Elo updates.

Gridline — warehouse robot simulator

Java 17 · Swing · Algorithms

  • Cooperative robot route planning with space-time A*, reservations, and Conflict-Based Search; collision validation and scenario testing.

Education

Palacký University Olomouc

Master’s studies · Computer Science

Palacký University Olomouc

Bachelor’s degree (Bc.) · Computer Science

Technologies & tools

Frontend React, TypeScript/JavaScript, HTML/CSS, API integration

Backend Node.js, REST APIs, C#/.NET, Java/Spring Boot (personal project), authentication

Data & operations PostgreSQL, SQL, Firebird, Docker, Git, Linux, CI/CD basics, testing