Frontend Engineer
Content + Source + Freshness • 11 Dec 2025 • 95% confidence
Offer value
This role offers a competitive salary and a creative work environment, enhancing skills in frontend development within the sports tech sector.
- Salary: $135,000–$165,000/year
- Impactful work for a major player in the sports sector
- Opportunities for professional development
- Requires significant technical skills and experience
Pros
- Salary range (~$135,000–$165,000/year) competitive for frontend engineers
- Opportunities to work on impactful projects with millions of users
- Flexible working conditions and supportive culture
Cons
- High expectations for performance may lead to stress
- Role demands solid experience in modern web technologies
- Potential requirement for sports betting licensure
Who it's for
Mid-level • Remote
Good fit
- Experienced frontend developers
- Professionals passionate about user experience
- Team players looking to innovate in sports tech
Not recommended for
- New graduates or junior developers
- Individuals uninterested in sports and gaming
- Candidates preferring less collaborative or dynamic settings
Motivation fit
Key skills
About the job
At Underdog, we make sports more fun.
Our thesis is simple: build the best products and we’ll build the biggest company in the space, because there’s so much more to be built for sports fans. We’re just over five years in, and we’re one of the fastest-growing sports companies ever, most recently valued at $1.3B. And it’s still the early days.
We’ve built and scaled multiple games and products across fantasy sports, sports betting, and prediction markets, all united in one seamless, simple, easy to use, intuitive and fun app.
Underdog isn’t for everyone. One of our core values is give a sh*t. The people who win here are the ones who care, push, and perform. If that’s you, come join us.
Winning as an Underdog is more fun.
About the role and why it's unique
- Work on cutting-edge projects that gamify and enhance the user experience across our products
- Design and build clean, reusable, and performant front-end features that will be used by millions of sports fans
- Collaborate closely with product managers, designers, and backend engineers to deliver elegant and responsive web experiences
- 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 in a high-agency environment where your voice matters in technical discussions and product direction
- Learn from talented engineers and leaders in the fantasy and sports betting space while contributing your own unique perspective and expertise
Who you are
- Product-minded engineer with 3+ years of professional experience building modern web applications
- 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
- Comfortable collaborating cross-functionally with designers, product managers, and backend engineers
- Strong attention to detail and commitment to delivering high-quality, user-focused experiences
- Familiarity with testing frameworks (Jest, React Testing Library, etc)
- Experience using GitHub and modern build tools (Webpack, Vite, or similar)
- Strong communication skills and a collaborative, product forward mindset
Even better if you have
- Experience with tools like Amplitude, DataDog and Storybook
Our target starting base salary range for this position is between $135,000 and $165,000, plus target equity. The starting base salary will depend on a number of factors including the candidate’s skills and experience, among other things.
What we can offer you:
- Unlimited PTO for full-time employees (we're extremely flexible with the exception of the first few weeks before & into the NFL season)
- 16 weeks of fully paid parental leave
- Home office stipend
- A connected virtual-first culture with a highly engaged distributed workforce
- 5% 401k match, FSA, company paid health, dental, vision plan options for employees and dependents
#LI-REMOTE
This position may require sports betting licensure based on certain state regulations.
Underdog is an equal opportunity employer and doesn't discriminate on the basis of creed, race, sexual orientation, gender, age, disability status, or any other defining characteristic.
