Frontend Developer

Reposted 5 Days Ago
Be an Early Applicant
Brains, Loire-Atlantique, Pays de la Loire, FRA
Hybrid
Junior
Blockchain • Software • Financial Services • Cryptocurrency
The Role
As a Frontend Developer, you will build and maintain web applications for Braiins Pool, ensuring high-quality UI/UX and collaborating with teams. Responsibilities include using React, TypeScript, and Sass, conducting tests, and contributing to technical decisions.
Summary Generated by Built In
What awaits you here:

As a Pool Frontend Developer, you will help build and evolve Braiins 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.

🤝 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 Braiins 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.

Skills Required

  • 2+ years of professional experience in frontend development
  • Experience with React, TypeScript & CSS (Sass)
  • Strong ownership and good communication skills
  • Previous experience designing frontend architecture and ensuring code quality standards
  • Drive to learn and collaborate in a team setting
Am I A Good Fit?
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The Company
Prague, Prague
72 Employees
Year Founded: 2011

What We Do

Bitcoin mining ecosystem. Mine more bitcoin with Braiins mining tools: mining pool, management system, custom firmware, hardware, education & more

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