Senior Frontend Developer

Quick Facts

• Role: Senior Frontend Developer

• Salary: 900–1200 PLN/day (B2B)

• Work model: Hybrid (3 days/week in Warsaw office)

• Contract: 6 months (Oct 2026 – Mar 2027)

Description

Join an Agile team responsible for development, maintenance, and support of a business-critical web application. The role combines hands-on frontend development with production support and modernization using up-to-date technologies and best practices.

Responsibilities

• Develop and enhance a modern React-based web application

• Implement new business requirements and improve existing functionality

• Support releases: preparation, stabilization, and production deployment

• Troubleshoot issues and resolve defects

• Maintain continuity of day-to-day application support during dedicated support periods

• Improve code quality and maintain framework dependencies, including vulnerability remediation

• Collaborate with Backend Developers, Business Analysts, Test Engineers, and end users

• Participate in Agile ceremonies (backlog refinement, sprint planning, reviews, production support activities)

Requirements

• Strong experience with React.js (v18+)

• Experience with React Query

• Proficiency in TypeScript

• Experience with React Testing Library

• Knowledge of Material UI

• Knowledge of Tailwind CSS

• Experience with React Form

• Solid understanding of hook-oriented programming

• Good communication and collaboration skills

Benefits

• Flexible work organization

• International work environment with daily English usage

• Scandinavian culture supporting work-life balance and paid training

• Integration meetings with the Jit community