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
- Frontend Software Engineer joining RealSelf's product engineering team. Building high-quality frontend features and collaborating with design, product, and backend teams.
Responsibilities
- Build and maintain high-quality, scalable frontend features using Next.js, React, and TypeScript.
- Collaborate with designers and product managers to translate complex user needs into clean, performant UI solutions.
- Contribute to RealSelf’s shared UI component library and design system, ensuring consistency, accessibility, and ease of reuse across the platform.
- Implement modern rendering patterns (SSR, ISR, and streaming) to optimize performance and SEO.
- Integrate securely with backend APIs, leveraging React Query, Suspense, and server actions for efficient data fetching.
- Improve site performance, accessibility (WCAG compliance), and Core Web Vitals through measurement and optimization.
- Collaborate with backend, data, and DevOps teams on API design, caching strategies, and deployment workflows.
- Conduct thorough code reviews, write reliable tests, and maintain high code quality standards.
- Advocate for frontend best practices, tooling improvements, and developer productivity initiatives.
- Use AI-assisted development tools (Copilot, Cursor, ChatGPT, etc.) to accelerate delivery and enhance quality.
Requirements
- 5+ years of professional frontend development experience.
- Expertise in React, Next.js (App Router), and TypeScript.
- Strong grasp of SSR, SSG, and hybrid rendering for SEO and performance.
- Deep understanding of CSS architecture (Tailwind, SCSS, CSS Modules, BEM) and responsive design.
- Experience integrating with APIs, handling async data, and building robust state management solutions (React Query, Zustand, Redux Toolkit, etc.).
- Experience building or contributing to design systems and component libraries.
- Strong accessibility, testing, and performance optimization skills.
- Proficiency with modern frontend build pipelines, CI/CD, and Git-based workflows.
- Excellent collaboration and communication skills; comfortable in cross-functional environments.
- Demonstrated ability to own large-scale frontend projects from concept to production.
- Bonus Qualities:
- Experience building consumer web products or marketplaces at scale.
- Familiarity with analytics, experimentation frameworks (A/B testing), and event tracking.
- Prior work on personalization, search, or recommendation systems.
- Experience integrating payments, bookings, or user onboarding flows.
- Knowledge of server components, Suspense, and streaming architectures.
- Experience with web performance monitoring tools (e.g., Lighthouse, Datadog RUM).
- Contributions to open-source frontend frameworks or developer tooling.
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