Underdog · 4 days ago
Senior Software Engineer - Rails
Underdog is one of the fastest-growing sports companies, recently valued at $1.3B, focused on building innovative products for sports fans. The Senior Software Engineer will work on cutting-edge projects in fantasy sports and sports betting, collaborating with product teams to deliver transformative features and maintain high development standards.
eSportsFantasy SportsGaming
Responsibilities
Work on cutting edge projects focused on gamifying and building unique features into our fantasy and sports betting products
Design and develop clean, well-structured, and performant features — your work will be used by millions of our customers
Work closely with other product-minded individuals to shape and deliver the next wave of transformative fantasy and sports betting products
Collaborate with client engineers and product stakeholders from start to finish, openly communicating issues, asking clarifying questions, and raising concerns when needed
Advocate for best practices to create strong foundational development practices for our growing team
Grow in a high-agency environment where you have equity in technical decision-making and are accountable for those decisions
Learn from some of the best engineers and leaders in the fantasy and sports betting world while bringing your own unique perspective; we elevate each other to make Underdog the best sports gaming platform now and for the future!
Qualification
Required
A product-minded engineer with 6+ years of professional software development experience, including at least 1 year as a senior engineer
At least 2 years of deep experience with Ruby on Rails
Familiarity with CI/CD, AWS, and modern DevOps tooling
Strong understanding of SQL, observability (e.g., Datadog, Amplitude), and API design
Skilled in scaling distributed systems, handling performance, caching, and database optimization
Comfortable working across the stack and collaborating with product and design to ship great user experiences
A clear communicator and empathetic teammate who values mentorship and feedback
Preferred
Experience in fantasy sports or sports betting (or a strong interest!)
Worked at a company through periods of rapid growth or scale
Experience building highly scalable and available systems to handle high traffic conditions with low latency
Benefits
Unlimited PTO (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
Company
Underdog
We’re the fastest-growing sports gaming company ever. Our mission is to build innovative games and products for American sports fans.
H1B Sponsorship
Underdog has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2024 (1)
2023 (1)
Funding
Current Stage
Growth StageTotal Funding
$115MKey Investors
Spark CapitalBlackRockKevin Carter
2025-03-26Series C· $70M
2022-07-26Series B· $35M
2021-05-03Series A· $10M
Recent News
Mergers & Acquisitions
2025-10-19
2025-10-18
Company data provided by crunchbase