Senior Frontend Developer Lisboa

Senior Frontend Developer
Lisboa
Lisboa, Lisboa, Portugal

Brain
Rocket is a global company creating
-
- end tech products for clients across Fintech, i
Gaming, and Marketing. ‍Young, ambitious, and unstoppable, we've already taken Cyprus, Malta, Portugal, Poland, and Serbia by storm. Our BRO team consists of 1, 300 bright minds creating innovative ideas and products. We don't follow formats. We shape them. We build what works, launch it fast, and make sure it hits.

We are looking for an
experienced Senior React Developer
to join our development team in Lisbon and help build
- quality, performant web applications. You will work closely with Backend, Dev
Ops, and Product teams to deliver innovative and scalable solutions.

Your Mission
Design, develop, and optimize frontend applications using React and modern web technologies. Ensure high performance, maintainability, and technical excellence while collaborating across teams and contributing to best practices.

Responsibilities

• Design and develop web applications that meet performance and scalability requirements
• Collaborate closely with Backend and Dev
  Ops teams to deliver integrated solutions
• Maintain and improve the technical excellence of the frontend team by implementing best practices and standards
• Optimize components and frontend architecture from performance and quality perspectives
• Ensure code quality through code reviews and adherence to frontend standards
• Participate in testing, troubleshooting, and
  - solving to deliver robust features

Requirements

• 5+ years of professional experience in web development
• 3+ years of
  - on experience with React
• Solid knowledge of modern SPA frameworks (React, Angular, Vue) and SSR ecosystems
• Strong Java
  Script knowledge (ES5/ES6) and experience with Type
  Script
• Familiarity with testing frameworks and test runners
• Experience setting up styling standards, guidelines, and best practices
• Experience consuming REST and Graph
  QL APIs
• Understanding of SOLID/GRASP principles,
  - side architecture, and design patterns
• Awareness of
  - browser compatibility and
  - side performance optimization
• Strong
  - solving skills and ability to work independently
• Experience with Git, npm, Vite
  JS, Webpack, Linters, and modern frontend tooling
• Advanced level of English

Nice to Have

• Experience with and its ecosystem
• Experience with Docker, NGINX, My
  SQL/Mongo
  DB, and Graph
  QL
• Strong product sense and good understanding of web UX

We offer excellent benefits, including but not limited to:
Learning and development opportunities and interesting, challenging tasks.

Relocation package (tickets, staying in a hotel for up to 2 weeks, and visa relocation support for our employees and their family members).

Opportunity to develop language skills, with partial compensation for the cost of English and Portuguese language classes (for localization purposes).

Partial compensation for tennis and padel lessons.

Urban Sport membership benefit (the most diverse sports and wellness offering in Europe, with more than 50+ activities).

Private medical coverage, including inpatient, outpatient, dental care, annual
- ups, and maternity support.

Time for proper rest, with 24
- business days per year and an additional 6 paid sick days.

Transport compensation - 200 euros net per month.

Competitive remuneration level with annual review.

Teambuilding activities.

Important: This is an
- site position based in Lisbon. Remote or hybrid work is not available. Candidates must either already be in Lisbon or be willing to relocate. Full relocation support will be provided if necessary.
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