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Underdog Sports

Senior Engineer - Rails

Job Summary

This role involves designing and developing features for fantasy sports and sports betting products, with a focus on performance and user experience. The candidate should have at least 6 years of software development experience, including Ruby on Rails and familiarity with DevOps tools like AWS and CI/CD pipelines. Collaboration across teams and best practices in software engineering are emphasized, with opportunities for growth and mentorship. The company offers flexible paid time off, parental leave, health benefits, and equity, supporting a distributed and innovative work environment.

Required Skills

SQL
CI/CD
DevOps
Communication
Performance Optimization
AWS
Teamwork
Software Development
Distributed Systems
Full Stack Development
API Design
Mentorship
Ruby on Rails
Caching
Database Optimization
Scaling Systems

Benefits

Health Insurance
Paid Parental Leave
Dental Insurance
Vision Insurance
401k Match
Unlimited PTO
Home Office Allowance

Job Description

We’re Underdog.

The fastest-growing sports gaming company – ever.

We build innovative games, products, and experiences for American sports fans.

We’re here to shake up the fastest growing industry with bold ideas, custom-built tech, and the drive to win.

Founded in 2020, our team has built four of today’s most widely played fantasy games and launched the Underdog Sportsbook – built entirely in-house with our own technology. That means we control our product, move fast, and create experiences you won’t find anywhere else.

In just over two years, we’ve reached over a $1.2 billion valuation, with investors like BlackRock, Spark Capital, SV Angel, Mark Cuban, Kevin Durant, and Adam Schefter. And we’re just getting started.

At Underdog, we believe that sports are for everyone. Join us.

About the role and why it’s unique:

  • 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!

Who you are:

  • 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.

Even better if you have:

  • 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


Our target starting base salary range for this position is between $150,000 and $190,000, 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 (we're extremely flexible with the exception of the first few weeks before & into the NFL season)
  • 16 weeks of fully paid parental leave
  • A $500 home office allowance
  • 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.

Interested in this job?

Application deadline: Open until filled

Logo of Underdog Sports

Underdog Sports

A fantasy sports platform offering daily contests and games for sports enthusiasts to compete and win prizes.

See more jobs
Date PostedApril 24th, 2025
Job TypeFull Time
LocationUnited States/Remote
SalaryCompetitive rates
Exciting remote opportunity (requires residency in United States) for a Senior Engineer - Rails at Underdog Sports. Offering competitive salary (full time). Explore more remote jobs on FlexHired!

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