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Software Engineer (Web)

Underdog

$135,000 - $165,000
Oct 29, 2025
Remote, US
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Underdog aims to build the best products in the sports industry to become the biggest company in the space by gamifying and enhancing user experience across their fantasy sports, sports betting, and prediction market products.

Requirements

  • Solid understanding of React and its ecosystem (React Hooks, Context API, functional components, etc.)
  • Solid grasp of JavaScript (ES6+), TypeScript, and state management libraries such as Redux
  • Experience working with RESTful APIs
  • Familiarity with testing frameworks (Jest, React Testing Library, etc)
  • Experience using GitHub and modern build tools (Webpack, Vite, or similar)
  • Experience with tools like Amplitude, DataDog and Storybook

Responsibilities

  • Design and build clean, reusable, and performant front-end features that will be used by millions of sports fans
  • Contribute to the upkeep and ongoing development of our design system and components
  • Write well-tested, high-quality code while participating in code reviews and ensuring engineering best practices
  • Work on cutting-edge projects that gamify and enhance the user experience across our products
  • Collaborate closely with product managers, designers, and backend engineers to deliver elegant and responsive web experiences
  • Participate in code reviews and ensuring engineering best practices
  • Work in a high-agency environment where your voice matters in technical discussions and product direction

Other

  • Product-minded engineer with 3+ years of professional experience building modern web applications
  • Comfortable collaborating cross-functionally with designers, product managers, and backend engineers
  • Strong attention to detail and commitment to delivering high-quality, user-focused experiences
  • Strong communication skills and a collaborative, product forward mindset
  • This position may require sports betting licensure based on certain state regulations.