Role Title: Senior Front-End Engineer – UI Systems

Location: Warsaw, hybrid

Contract Type: Umowa o Pracę - full time employment

20000-33000 zl gross/month - negotiable

Full-Stack Engineer (Frontend-Focused)

We’re looking for a Full-Stack Engineer with strong frontend expertise to join a team building modern, data-driven applications used across the organization. You’ll collaborate with researchers and technical stakeholders to design intuitive interfaces, build scalable backend services, and deliver interactive solutions that turn complex datasets into clear insights.

What You’ll Do

• Build responsive web applications using React, TypeScript, and modern UI patterns
• Partner with stakeholders to translate requirements into clean, intuitive interfaces and data visualizations
• Develop backend services and integrate with APIs, microservices, and cloud environments
• Create dynamic content delivery solutions across multiple channels
• Optimize database access, queries, and performance
• Contribute to automated testing, CI/CD pipelines, and infrastructure-as-code practices

Tech Environment

React, TypeScript, Next.js, Node.js, PostgreSQL, AWS, Kubernetes, GitHub, CI/CD tools, TDD, UI frameworks, Figma, charting/grid libraries.

What You Bring

• 4–6+ years of experience in UI development (React, Angular, TypeScript, JavaScript)
• Strong full-stack experience with Node.js, REST API integration, and microservices
• Experience working with relational databases (PostgreSQL preferred)
• Solid understanding of async programming (Promises, Observables)
• Familiarity with build tools (Webpack, Gulp), UI/UX tools, and visualization libraries
• Experience with AWS and containerized environments is a plus