Senior Frontend Developer - Reactjs, TypeScript, Next.js Hybrid - 1 or 2 times in Warsaw per week..Senior Frontend Developer - Reactjs, TypeScript, Next.js Hybrid - 1 or 2 times in Warsaw per week..Developer team with the goal of developing and maintaining systems on a telecommunications portal and..is delighted to be working with a leading telecommunications client that is looking to expand their Frontend..Duties of the job: Working as a Senior Front-End Developer in a SCRUM Agile team, developing and maintaining