Frontend Developer building intuitive and seamless cross - platform sports betting applications at iGaming startup. Focusing on coding, debugging, and enhancing user experience in Lisbon.
About the role
- Pleno Front-end Developer at Mutant responsible for developing modern, scalable and performance-driven applications. Collaborate with a talented team to innovate and evolve in technology.
Responsibilities
- Strong experience with JavaScript ES6+ and TypeScript
- Proficiency in SPA concepts, componentization, immutability, functional programming, and code organization
- Knowledge of front-end architecture best practices (separation of concerns, SOLID adapted to the front-end, Clean Code)
Requirements
- Solid experience with JavaScript ES6+ and TypeScript
- Proficiency in SPA concepts, componentization, immutability, functional programming, and code organization
- Knowledge of front-end architecture best practices (separation of concerns, SOLID adapted to the front-end, Clean Code)
- Experience with Vue (2 and 3) and/or React 18+
- Hooks, Composition API, componentization and modular architecture
- State management with Pinia, Vuex or Context API
- React Router or Vue Router
- Experience with TanStack Query (React Query/Vue Query) for server-state management
- Integration with REST APIs
- Use of Axios or Fetch
- Authentication via JWT/OAuth2
- Global error handling and caching strategies
- Integration with multiple backend services (BFF is a plus)
- TailwindCSS, Sass or CSS Modules
- Experience with libraries such as MUI, Ant Design, Chakra UI or similar
- Creation of reusable components and Design Systems
- Responsive design (mobile-first)
- Basic accessibility knowledge (WCAG/ARIA) and UX best practices
- Organization by modules/domains
- Lazy loading and code splitting
- Performance optimization (memoization, reducing re-renders, bundle optimization)
- Experience with DevTools/Lighthouse
- Vite, Webpack or similar
- Unit testing with Jest or Vitest
- E2E testing with Cypress or Playwright
- ESLint, Prettier and code quality best practices
- Git (GitHub, GitLab or Bitbucket)
- Experience with CI/CD
- Docker (desirable)
- Package publishing and versioning (a plus)
Benefits
- Medical and dental insurance
- Life insurance
- Commuting allowance (transportation)
- Meal and food allowance
- Wellhub (Gympass)
- Childcare assistance
- Support for children with disabilities
- Performance bonus
- Birthday day off
- Alelo Multibenefits
- Allya - partnerships and discounts via the app
- Pet health plan
Job title
Job type
Experience level
Salary
Degree requirement
No Education Requirement
Tech skills
Location requirements
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