Underdog Logo

Underdog

Senior Frontend Engineer

Reposted 9 Days Ago
Easy Apply
Remote
Hiring Remotely in United States
160K-240K Annually
Senior level
Easy Apply
Remote
Hiring Remotely in United States
160K-240K Annually
Senior level
The Senior Software Engineer will design and build user-centric web applications, collaborating with cross-functional teams while ensuring high code quality and performance.
The summary above was generated by AI

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 6+ years of professional experience building modern web applications
  • Excellent 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 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)
  • Excellent 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 $160,000 and $240,000, 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


We're a remote-first company and value in-person connection. That said, we expect everyone to gather 2-3 times per year for team and company offsites, trainings, and more.

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.

California Applicants: Review our CPRA Privacy Notice here. 

Top Skills

Amplitude
Datadog
Git
JavaScript
Jest
React
React Testing Library
Redux
Restful Apis
Storybook
Typescript
Vite
Webpack

Similar Jobs

10 Days Ago
Remote
USA
112K-198K Annually
Senior level
112K-198K Annually
Senior level
Marketing Tech • Software
The Senior Frontend Engineer will architect and develop core services using Angular, collaborating on design and maintenance of web applications, ensuring quality and security standards are met.
Top Skills: AngularCSSHTMLJavaScriptJSONLessReactRestSass
5 Days Ago
Easy Apply
Remote
USA
Easy Apply
186K-219K Annually
Senior level
186K-219K Annually
Senior level
Artificial Intelligence • Blockchain • Fintech • Financial Services • Cryptocurrency • NFT • Web3
The Senior Software Engineer will design secure services to integrate with blockchains, build interfaces for digital currency apps, and collaborate with product teams. Responsibilities include writing well-tested code and enhancing user-facing features in web apps, while supporting a positive team environment.
Top Skills: JavaScriptReactReact Native
Yesterday
Remote
United States
Senior level
Senior level
Big Data • Marketing Tech • Analytics
As a Senior Frontend Engineer, you'll develop and integrate responsive web components, improve code quality, collaborate with teams, and manage the full SDLC in an Agile environment.
Top Skills: AngularAWSChart.JsCSSD3GitHTMLJavaScriptJestJSONNpmReactRestful Web ServicesTypescriptWebpack

What you need to know about the Boston Tech Scene

Boston is a powerhouse for technology innovation thanks to world-class research universities like MIT and Harvard and a robust pipeline of venture capital investment. Host to the first telephone call and one of the first general-purpose computers ever put into use, Boston is now a hub for biotechnology, robotics and artificial intelligence — though it’s also home to several B2B software giants. So it’s no surprise that the city consistently ranks among the greatest startup ecosystems in the world.

Key Facts About Boston Tech

  • Number of Tech Workers: 269,000; 9.4% of overall workforce (2024 CompTIA survey)
  • Major Tech Employers: Thermo Fisher Scientific, Toast, Klaviyo, HubSpot, DraftKings
  • Key Industries: Artificial intelligence, biotechnology, robotics, software, aerospace
  • Funding Landscape: $15.7 billion in venture capital funding in 2024 (Pitchbook)
  • Notable Investors: Summit Partners, Volition Capital, Bain Capital Ventures, MassVentures, Highland Capital Partners
  • Research Centers and Universities: MIT, Harvard University, Boston College, Tufts University, Boston University, Northeastern University, Smithsonian Astrophysical Observatory, National Bureau of Economic Research, Broad Institute, Lowell Center for Space Science & Technology, National Emerging Infectious Diseases Laboratories

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account