Senior Software Engineer (Web)
Underdog FantasyColorado, United States
Posted October 24, 2025
160000 - 240000 USD year
Full Time
About the Company
Underdog Fantasy is a rapidly growing sports gaming company founded in 2020. Specializing in innovative games and products for American sports fans, the company has developed three of the most popular fantasy games today and hosted the largest NFL Best Ball tournament worth $15M. Underdog's modern tech environment and in-house product development enable continuous delivery of exceptional user experiences.
Job Description
Underdog is a fast-growing sports company building a unique app for fantasy sports, betting, and prediction markets. They value hard work, innovation, and collaborative spirit. The Senior Software Engineer role involves designing and building front-end features, collaborating with cross-functional teams, and contributing to the continued development of the product.
Requirements
- 6+ years of professional experience building modern web applications
- Strong understanding of React and its ecosystem (React Hooks, Context API, functional components, etc.)
- Strong grasp of JavaScript (ES6+), TypeScript, and state management libraries such as Redux
- Experience working with RESTful APIs
- Comfortable collaborating cross-functionally
- Strong attention to detail
- Commitment to delivering high-quality, user-focused experiences
Benefits
- Unlimited PTO
- Home office stipend
- Virtual-first culture
- 401k match
- FSA
- Health, dental, and vision plans
- Generous Parental Leave
