Full-Time

Senior Frontend Engineer

Mobile

Confirmed live in the last 24 hours

Sleeper

Sleeper

51-200 employees

Fantasy sports platform with social features

Consumer Software
Gaming

Compensation Overview

$150k - $235kAnnually

Senior

Las Vegas, NV, USA + 4 more

More locations: Seattle, WA, USA | San Francisco, CA, USA | Los Angeles, CA, USA | New York, NY, USA

Category
Frontend Engineering
Mobile Engineering
Software Engineering
Required Skills
JavaScript
React.js
GraphQL
TypeScript
Web Development
React Native
Requirements
  • A degree in Computer Science or equivalent experience
  • 5+ years of mobile / web development with an emphasis on frontend
  • Proven ability to develop and implement algorithms or systems in a professional setting, with strong coding skills in Javascript and knowledge of best practices
  • Highly proactive, with a track record of building processes from scratch and a willingness to challenge traditional risk management paradigms.
  • Comfortable 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 (React Query, Navigation, Reanimated, etc).
  • 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
  • Stay up-to-date on the latest advancements in React, mobile development best practices, and accessibility guidelines.

Sleeper operates a platform for managing fantasy sports leagues, particularly fantasy football and bracket pools. Users can engage with the platform through features like in-app chat, live game watching, and an easy-to-navigate design, which fosters communication and shared experiences among sports fans. Unlike many competitors, Sleeper does not rely on ads for revenue; instead, it offers premium features and services that enhance the user experience, such as advanced draft modes and customization options. This focus on quality and user engagement has led to significant growth, with over 4 million users and high retention rates. Sleeper's goal is to create a social and immersive fantasy sports experience that keeps users engaged throughout the sports season.

Company Stage

Series C

Total Funding

$67.3M

Headquarters

San Francisco, California

Founded

2014

Simplify Jobs

Simplify's Take

What believers are saying

  • Increased interest in eSports opens new opportunities for Sleeper's platform expansion.
  • AI-driven analytics enhance user experience with personalized insights and recommendations.
  • Growing demand for mobile-first experiences pushes Sleeper to innovate with real-time features.

What critics are saying

  • Increased competition from new platforms could erode Sleeper's market share.
  • Sports betting apps with fantasy elements may attract users away from Sleeper.
  • Changes in sports broadcasting rights could impact Sleeper's live game features.

What makes Sleeper unique

  • Sleeper offers an ad-free experience, unlike many competitors in the market.
  • The platform includes in-app chat and live game watching for enhanced user interaction.
  • Sleeper focuses on premium features and services for a superior user experience.

Help us improve and share your feedback! Did you find this helpful?