Open to opportunities

Marcin Kunicki

@marcinkunicki

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Full-Stack Developer building scalable web apps with React, Node.js, and .NET.

Poland

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What I'm looking for

I’m looking for a role where I can build scalable full-stack products, improve performance and reliability, and work with clean architecture and strong developer tooling—collaborating across product, design, and QA to deliver features on time.

I’m a results-driven Full-Stack Developer with 7+ years of experience designing and delivering scalable web applications. I specialize in clean architecture and continuously improving system reliability and user experience, while building production-grade RESTful and GraphQL APIs.

In my recent role as a Full-Stack Engineer, I developed full-stack applications with React, Node.js, and TypeScript, and improved performance by implementing caching strategies with Redis. I also use Docker to streamline development and deployment workflows, and I focus on code quality through peer reviews, linting standards, and test coverage.

Experience

Work history, roles, and key accomplishments

Full-Stack Engineer

Lightspace

Feb 2021 - Apr 2026 (5 years 2 months)

Developed and maintained full-stack web applications using React.js, Node.js, and TypeScript, delivering REST and GraphQL APIs for web and mobile clients. Improved performance with Redis caching, supported high availability, and streamlined dev/deployment via Docker while strengthening code quality through reviews, linting, and test coverage.

React Node TypeScript REST APIs GraphQL Redis Docker Testing

Web Developer

SoftSystem Sp. z o.o.

Sep 2018 - Jan 2021 (2 years 4 months)

Built and maintained responsive, cross-browser web applications and delivered backend services with Node.js and .NET integrated with PostgreSQL. Worked across the full SDLC, translated UI/UX designs into accessible frontend components, and refactored legacy codebases to reduce technical debt and improve maintainability.

Responsive Web Design Node C# .NET REST APIs PostgreSQL SDLC UI UX Refactoring