Fliff Inc logo
Fliff Inc

Social sports predictions for the next generation of fans

Senior ReactJS Engineer

Frontend EngineerSoftware EngineerFull TimeRemoteSeniorTeam 11-50H1B No SponsorCompany SiteLinkedIn

Location

Bulgaria

Posted

121 days ago

Salary

0

Seniority

Senior

Job Description

Senior ReactJS Engineer

Fliff Inc

• Develop and maintain responsive web applications using ReactJS, ensuring a seamless experience across devices. • Collaborate with backend, DevOps, and designers to implement new features and optimize the live product. • Support the live platform by identifying and resolving real-time performance issues. • Design scalable solutions with attention to responsive UIs using pure CSS/SCSS without relying on external frameworks. • Mentor junior engineers and provide code reviews to maintain high standards. • Leverage Redux, React-Redux bindings, and middleware (Thunk/Saga) for state management. • Implement RESTful APIs using axios and fetch, with optional GraphQL integration via Apollo client.

Job Requirements

  • 5+ years of experience building modern web applications, with strong expertise in ReactJS and React Hooks (useState, useEffect, custom hooks).
  • Advanced TypeScript skills, including utility types (Partial, Pick), generics, and infer keyword usage.
  • Solid understanding of Redux mechanics, React-Redux bindings, and internal hooks.
  • Strong CSS/SCSS knowledge, with the ability to build reusable, responsive UIs without external libraries (e.g., Material UI, Tailwind).
  • Knowledge of WebSockets (native and socket.io) to handle real-time data.
  • Experience with RESTful APIs, axios, and fetch, with optional GraphQL and Apollo Client experience.
  • Familiarity with React Router for dynamic imports, lazy loading, and code splitting.
  • Comfortable with UI tools like Figma, along with React DevTools, Chrome debugger, and testing tools such as Jest and Cypress.
  • Adaptability and problem-solving skills to handle real-time challenges and evolving project requirements.
  • Strong communication skills and a collaborative mindset to work effectively with cross-functional teams.

Benefits

  • Competitive compensation package.
  • Opportunity for professional development in a dynamic, fast-growing company.
  • Supportive, collaborative, and knowledge-driven work environment.
  • Engaging and challenging role with the freedom to innovate and build exciting solutions in the sports gaming industry.

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