Freelance Senior Full Stack Developer

Project-Based | Fixed-Term Collaboration At TeaCode , we’re expanding our network of trusted freelance developers for upcoming fixed-term, project-based collaborations . If you’re a Senior Full Stack Developer looking for meaningful short-term projects, we’d love to hear from you! You’ll be joining us for a specific project, working alongside our in-house team to deliver modern, scalable digital solutions for international clients. This is a great opportunity if you enjoy focused, time-boxed assignments and want to collaborate with a like-minded, fast-moving team. Our core tech stack : TypeScript Next.js React React Native Nest.js Node.js PostgreSQL AWS Docker Key responsibilities: Develop and maintain full-stack web applications using TypeScript and modern frameworks Write clean, efficient, and well-documented code, following industry best practices Collaborate with designers, developers to implement new features and improve existing functionalities Deliver high-quality code within project timelines and communicate clearly with project stakeholders and external clients Identify and fix bugs, optimize application performance, and ensure high reliability and scalability Mentor junior and mid developers Requirements: Min. 5 years of commercial experience in software development Must have an extensive knowledge as well as commercial experience in Typescript, React, Next.js, and Node.js Knowledge of English at min. B2+ level and fluent Polish (C1 or native) Technical university degree within IT field Self motivation, willingness to learn new things and positive attitude to change Good communication and teamwork skills are a must Experience in React Native would be an asset What we offer: A collaborative and supportive work environment Engaging projects that challenge your creativity and technical expertise Macbooks Pro equipment to work on Coworking office space in a vibrant location of Warsaw Recruitment process: HR screening (15-30 minutes) Technical interview: live coding session (1 hour) Decision About us: We are a software house based in Warsaw with over 50 people on board We work in one programming language → JavaScript/TypeScript We have clients from all over the world We are really flexible in working hours The atmosphere within the team is our great value