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November 4, 2026
Senior Frontend Engineer (React / TypeScript)
Senior • On-site
30,000 - 43,000 PLN/yr
Warsaw, Poland
Quick Facts
- Role: Senior Frontend Engineer (primarily Frontend, with some Backend)
- Focus: Performance, user experience, scalable web applications
- Tools/Tech: React, TypeScript, AI-assisted development (Claude/GPT)
Description
We are looking for an experienced Frontend Engineer to develop and enhance modern, scalable web applications, with a strong focus on performance and user experience. The role is approximately 80% frontend and 20% backend development, including work on features, architecture, integrations, and database-related tasks. You will work independently and use AI-assisted development tools while maintaining high standards for code quality, security, and maintainability.
Responsibilities
- Develop and maintain web applications using React and TypeScript
- Build reusable UI components and scalable frontend solutions
- Implement new features and improve application performance
- Contribute to backend development, including APIs, integrations, and database-related tasks
- Ensure code quality, security, and maintainability
- Take ownership of development initiatives and collaborate with technical and business stakeholders
- Use AI-powered tools to improve development efficiency while applying sound engineering judgment
Requirements
- 6+ years of frontend development experience
- Strong knowledge of React, TypeScript, HTML, and CSS
- Understanding of application architecture and experience working across the full stack
- Backend development experience, preferably with C#/.NET or other object-oriented languages
- Good understanding of APIs, databases, and application integrations
- Experience with AI-assisted coding tools such as Claude or GPT
- Ability to work independently and deliver solutions from concept to production
- Strong analytical and communication skills
- Degree in Computer Science, Mathematics, Engineering, or a related field
Benefits
Not specified in the provided posting.
Nice to Have
- Experience with AG Grid
- Familiarity with large datasets and complex database structures
- Experience with enterprise-level applications and CI/CD practices
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