Senior Software Engineer - Rails

Underdog is a rapidly growing company focused on making sports more fun through innovative products. The Senior Software Engineer will work on cutting edge projects to enhance fantasy sports and sports betting products, collaborating closely with product and engineering teams to deliver transformative features.

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!

Requirements:

• 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
• 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