Frontend Engineer

About The Company
Sleeper is a rapidly expanding platform for fantasy sports and games, revolutionizing the way sports fans connect and engage. Though once only an NFL fantasy football company, we have continued to expand our offerings over 10+ years of operation with NBA, LCS, and soccer. In Sleeper Picks, our real-money Daily Fantasy Sports (DFS) game, users predict player performance against projections provided by third-party vendors. We are at the forefront of innovation in the sports gaming industry, backed by some of Silicon Valley's top investors.
About The Role
We are searching for a highly intelligent and innovative Frontend Software Engineer to join our team. At Sleeper, we believe in the power of smart, creative individuals to drive change and build incredible things, regardless of their background in specific technologies. You will play a crucial role in developing our mobile and web products to ensure scalability, reliability, and quality, impacting millions of dedicated users every day.
Sleeper is a rapidly growing platform for sports fans with social at its core. Our mobile platform is built on React Native, and has been modernized with TypeScript and many of the leading packages like react-query, react-navigation, and reanimated. We're looking for an experienced developer who can bring their knowledge and skills to help refine our product; bringing new features, improved quality, and lightning-fast performance to our millions of users.
Qualifications

• A degree in Computer Science or equivalent experience.
• 5+ years of mobile/web development with an emphasis on frontend technologies.
• Strong proficiency in JavaScript, TypeScript, and related frameworks/libraries.
• Experience with React Native and modern mobile development practices.
• Proven ability to develop and implement algorithms or systems in a professional setting, with strong coding skills.
• Knowledge of best practices for performance optimization, code maintainability, and scalability.
• Highly proactive, with a track record of building processes from scratch and a willingness to challenge traditional risk management paradigms.
• Comfortable working in fast-paced, ambiguous environments, thriving on innovation and the challenge of creating something new.

Responsibilities

• Collaborate with designers to understand user requirements and translate them into technical specifications for our products.
• Write clean, maintainable, and efficient code using React Native, TypeScript, and related libraries such as react-query, react-navigation, and reanimated.
• Develop reusable UI components and implement a well-structured component hierarchy for the application.
• Implement user interface (UI) functionality and logic using React features like state management, props, hooks, and lifecycle methods.
• Integrate front end components with back end services using APIs (RESTful or GraphQL).
• Troubleshoot and debug complex performance, socket, data caching, and other issues to ensure optimal user experience.
• Stay up-to-date on the latest advancements in React, mobile development best practices, and accessibility guidelines to continually improve product quality.
• Participate in code reviews, contribute to team knowledge sharing, and mentor junior developers as needed.

Benefits

• A competitive salary range of $180,000 to $235,000 USD, based on experience.
• Comprehensive benefits including Medical, Dental, PTO, and 401(k) plans.
• Opportunity to work within a small, impactful team environment where your contributions truly make a difference.
• The chance to be at the forefront of transforming the sports betting and DFS landscape.
• Support for professional growth and development, backed by leading investors and industry innovators.

Equal Opportunity
Sleeper is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, disability, or any other protected status. We believe that diverse perspectives foster innovation and help us build better products for our users.