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
- Senior Frontend Engineer developing scalable features for recruiting software at JOIN. Collaborating with design and product teams to shape the user experience and technical architecture.
Responsibilities
- Own frontend feature delivery end-to-end – from technical discovery and solution design to implementation, testing, rollout, and monitoring in production.
- Translate product requirements into scalable technical solutions, proactively identifying edge cases, UX trade-offs, and performance implications before implementation begins.
- Build complex, maintainable React components and application flows using TypeScript and modern frontend architecture principles.
- Drive technical quality within your scope by writing robust unit, and end-to-end tests and ensuring high reliability of shipped features.
- Actively contribute to architectural discussions, proposing improvements to frontend structure, state management patterns, performance optimisation, and scalability.
- Collaborate closely with Product and Design during discovery, challenging assumptions and ensuring solutions balance user experience, feasibility, and speed.
- Monitor and optimise performance and user experience in production, using metrics, logs, and analytics to continuously improve feature impact.
- Support incremental improvements to the Design System and shared components when feature development requires enhancements.
- Mentor less experienced engineers through collaboration and knowledge sharing (without formal people management responsibilities).
Requirements
- 5+ years of frontend development experience using frameworks and UI libraries
- 2+ years of development experience in React.js and Redux
- 2+ years of experience with TypeScript
- 2+ years of experience with GraphQL
- Nice to have: Experience with JS/TS linters, webpack, babel, or other bundle/configuration management
- Experience with Cypress, Selenium or other E2E frameworks
- Experience building Design System components using Storybook or other frameworks
- Experience building Monorepo apps
Benefits
- 🖥 Apple hardware – The best tools for the job (M3 Pro MacBook Pro).
- 🏆 Team events – Brunches, sports activities, and quarterly gatherings in Berlin.
- 🌍 Productivity from Everywhere – 104 days per year remote (post-probation), following our hybrid policy.
- 🏦 Competitive salary – Tailored to align with your experience level.
- 🏠 Relocation support – Assistance with paperwork, travel, and one month of furnished accommodation.
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