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 UI Engineer developing high-quality front-end features using React and TypeScript for StarCompliance’s SaaS applications. Collaborating closely with design and backend teams for optimal user interfaces.
Responsibilities
- As a Senior UI Engineer, you will help shape the evolution of StarCompliance’s front-end engineering discipline — building scalable, performant, and maintainable interfaces that delight our users.
- Build, maintain, and evolve front-end features and components using React, TypeScript, and modern web tooling.
- Contribute to the design and development of Star’s design system and component library, ensuring consistency, accessibility, and scalability.
- Collaborate with designers to translate design concepts into production-ready, pixel-perfect interfaces.
- Optimize front-end performance and maintain high standards for accessibility and cross-browser compatibility.
- Participate in architectural discussions, helping to define Star’s front-end strategy, tooling, and best practices.
- Write robust, testable code with high unit test coverage using Jest and React Testing Library.
- Work within modular or micro-frontend environments, integrating components across distributed systems.
- Mentor and support other engineers through code reviews, pairing, and technical guidance.
- Collaborate closely with Product, Architecture, and QA teams to ensure quality is built into every stage of development.
- Champion modern UI engineering practices including CI/CD integration, component reusability, and automated testing.
Requirements
- 5+ years of professional front-end engineering experience, with strong expertise in React and TypeScript.
- Proven experience designing or maintaining scalable component libraries or design systems.
- Excellent knowledge of modern JavaScript (ES6+), HTML5, CSS3/Sass, and build tools.
- Familiarity with state management tools (React Query, Redux, Jotai, or similar).
- Experience working with Material UI or similar frameworks and extending them as needed.
- Solid understanding of testing frameworks (Jest, Testing Library) and CI/CD integration.
- Comfortable collaborating in cross-functional agile teams, with strong communication and problem-solving skills.
- Experience with performance optimization, accessibility (WCAG), and responsive design.
- Exposure to Azure DevOps pipelines and .NET environments beneficial.
- Strategic mindset with the ability to balance delivery speed, user experience, and technical excellence.
Job title
Job type
Experience level
Salary
Not specified
Degree requirement
Tech skills
Location requirements
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