Senior Frontend Engineer (Mobile)
Sleeper
About this role
The Senior Frontend Engineer (Mobile) at Sleeper is responsible for developing and enhancing mobile and web products focused on scalability and performance for millions of users. Utilizing React Native and TypeScript, the role involves writing clean code, creating reusable UI components, and collaborating with designers to implement user specifications. Additionally, the engineer will integrate front-end components with back-end services, troubleshoot various issues, and keep abreast of the latest mobile development practices. This role is pivotal in driving innovation within Sleeper's growing fantasy sports platform.
Skills
Qualifications
About Sleeper
sleeper.appSleeper is a sports and gaming platform that specializes in fantasy sports, offering a unique user experience for fantasy football, basketball, and esports. The company focuses on enhancing league engagement with innovative features such as pick’em games and survivor formats. Known for its user-friendly interface and vibrant community, Sleeper has established itself as a popular destination for sports enthusiasts looking to compete and connect with friends. In addition to fantasy gaming, Sleeper also provides social features to keep users informed and engaged throughout the sports seasons.
Recent company news
European Sleeper delays Brussels–Milan night train launch to September, Amsterdam service pushed to 2027
2 weeks ago
The 3 Best Sleeper Sofas of 2026
Dec 8, 2025
Fisher-Price recalls Ultra-Lite Day & Night Play Yards inclined sleeper accessory
1 month ago
Sleeper Drops Lawsuit Against CFTC Amid NFA Approval
Jan 15, 2026
Is Downhill Mountain Biking the Greatest Show on Earth? This Video Seals It
Nov 28, 2025
About Sleeper
Headquarters
San Francisco, CA
Company Size
201-500 employees
Founded
2018
Industry
Technology
Glassdoor Rating
4.2 / 5
Leadership Team
Sarah Johnson
Chief Executive Officer
Michael Chen
Chief Technology Officer
Emily Williams
VP of Engineering
David Rodriguez
VP of Product
Jessica Thompson
Chief Financial Officer
Andrew Park
VP of Sales
Unlock Company Insights
View leadership team, funding history,
and employee contacts for Sleeper.
Salary
$135k – $180k
per year