Senior Frontend Developer (AI)

Location: Lisbon, Portugal; office-first with the possibility to work remotely for 52 days per year

Company

JoomPro is a cross-border B2B marketplace within hirify.global, an international e-commerce technology group operating across multiple countries.

What you will do

• Develop new features for large React applications.
• Support and improve current functionality.
• Refactor frontend code and components.
• Collaborate with colleagues across Portugal, Brazil, Latvia, and China.

Requirements

• Deep experience developing large applications with React.
• Strong knowledge of native JavaScript and object-oriented programming.
• Understanding of browser event models, rendering, and animation features.
• Knowledge of programming patterns, basic algorithms, and complexity assessment.
• Knowledge of network protocols.

Nice to have

• Experience with Effector, Redux, or React Query.
• Experience with Next.js, Express, TypeScript, Nginx, or Docker.
• Experience with AI tools such as Cursor, Claude Code, or Codex.
• Experience developing multilingual applications.

Culture & Benefits

• Base salary with performance-based bonuses.
• 22 days of paid annual leave and 100% paid sick leave.
• Health insurance, including dental care, for employees and their children.
• Daily meal allowance and relocation assistance for employees and their families.
• Access to AI tools, professional training, English courses, and promotion opportunities.
• Team-building activities and knowledge-sharing workshops.