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Senior Frontend Engineer (Mobile) at Sleeper | San Francisco Area

SleeperSan Francisco Area, United States Remote
Remote Full-time $180K/yr - $235K/yr

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Experience Level

Senior

Qualifications

The ideal candidate will possess extensive experience in frontend development, particularly with React Native and TypeScript. A strong understanding of performance optimization techniques, state management, and UI/UX design principles is essential. Familiarity with RESTful APIs, GraphQL, and mobile development best practices will further enhance your candidacy.

About the job

About Sleeper:

Sleeper is a dynamic and rapidly growing platform dedicated to transforming the fantasy sports and gaming experience for sports enthusiasts. Initially focused solely on NFL fantasy football, we have diversified our offerings over the past decade to include NBA, LCS, and soccer. With our innovative Sleeper Picks feature, users engage in real-money Daily Fantasy Sports (DFS) by predicting player performances based on projections from trusted third-party sources. As pioneers in the sports gaming sector, we are proudly backed by some of Silicon Valley's leading investors.

Role Overview:

We are on the lookout for a talented and forward-thinking Senior Frontend Engineer to enhance our team. At Sleeper, we recognize that exceptional and imaginative individuals can effectuate change and create remarkable products, regardless of their technological background. In this role, you will be instrumental in the development of our mobile and web applications, ensuring scalability, reliability, and top-notch quality that will benefit millions of dedicated users daily.

Our mobile platform, built on React Native, has been modernized with TypeScript and features top industry packages like react-query, react-navigation, and reanimated. We seek an experienced developer to contribute their expertise in refining our product, introducing new features, enhancing quality, and delivering lightning-fast performance to our vast user base.

Responsibilities:

  • Collaborate with design teams to gather user requirements and translate them into detailed technical specifications for our products.

  • Craft clean, maintainable, and efficient code using React Native, TypeScript, and associated libraries (e.g., React Query, Navigation, Reanimated).

  • Create reusable UI components and establish a well-organized component hierarchy within the application.

  • Implement user interface (UI) functionality and logic utilizing React features such as state management, props, hooks, and lifecycle methods.

  • Integrate frontend components with backend services through APIs (RESTful or GraphQL).

  • Diagnose and resolve complex performance issues, socket connections, data caching, and more.

  • Stay informed on the latest developments in React, best practices in mobile development, and accessibility standards.

Who You Are:

  • A highly motivated individual with a passion for frontend development and a knack for problem-solving.

About Sleeper

Sleeper is an innovative platform that is changing the landscape of fantasy sports and gaming, empowering users to engage with their favorite sports like never before. Our commitment to excellence and user-centric design sets us apart in the industry.

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