Senior ReactJS Engineer | Frontend Lead & DevOps Mentor

Us3 Consulting urgently seeks an experienced Senior ReactJS Developer for a long-term contract in Warsaw, Poland. The role requires deep React expertise, including components, hooks, and state management with Redux Toolkit, plus hands-on experience with Vite and modern DevOps practices.

You will lead and mentor a development team, drive CI/CD pipelines, and ensure code quality with SonarQube checks while collaborating with non-technical stakeholders across the project lifecycle.