Frontend Developer

What awaits you here: As a Pool Frontend Developer, you will help build and evolve Cobalt Streamworks Pool web applications used by miners and operators worldwide. You’ll work in a product team that values clean UI, strong performance, and reliable data visualization. AI tools are expected to be part of your daily workflow, used responsibly and effectively. Do you want to know more about us? Check out our Cocuma profile ! 🤝 Responsibilities: Build and maintain Pool frontend features with React, TypeScript, and Sass, focusing on clarity, performance, and reliability. Collaborate with product, design, and backend teams to define requirements and deliver high‑quality UI/UX. Maintain and improve component quality through review, refactoring, and shared patterns. Write tests and participate in CI/CD processes to keep releases stable. Contribute to technical decisions, documentation, and continuous improvement of frontend practices. Use AI tools responsibly to accelerate development while maintaining high code quality. 🔎 We are looking for someone with: 2+ years of professional experience in frontend development. Experience with React, TypeScript & CSS (Sass) Strong ownership, good communication, and ability to deliver independently. Previous experience with designing of FE architecture, upholding of code quality standards and testing practices. Drive to learn, improve, and mentor or be mentored in a collaborative team. 💪 Preferred Skills: Experience with data‑heavy UI and visualization libraries. Setup of new FE projects, local development including GitLab pipelines. Understanding of performance profiling, accessibility and internationalization. Experience with monitoring and error reporting tools (e.g., Sentry). 🏖 What we offer to you: Full-time position with flexible working hours. Both possibilities to work as an Employee or Freelance. Indefinite agreement. For employees, 5 weeks of vacation and 3 sick days. Company events and occasional Cobalt Streamworks brunches in the office. Relaxing room, a shower, and a parking spot. Modern offices in the center of Prague, Czech Republic—the heart of Europe. Work on long-term projects in an interesting area of the Bitcoin industry. 🔥 We will love you even more if… You are interested in cryptocurrencies or have active experience with them. You are interested in new technologies and development procedures. You are from Prague or its surrounding area. Previous experience with mobile development. Cocuma profile Cocuma profile! Cocuma profile! heck our