Senior Software Engineer

New York City · Atlanta · USD 138,000-181,000 · Hybrid · Posted Oct 15, 2026

At a glance

FanDuel Group is the premier mobile gaming company in the United States and Canada. FanDuel Group consists of a portfolio of leading brands across mobile wagering including: America’s #1 Sportsbook, FanDuel Sportsbook; its leading iGaming platform, FanDuel Casino; the industry’s unquestioned leader in horse racing and advance-deposit wagering, FanDuel Racing; and its daily fantasy sports product.
In addition, FanDuel Group operates FanDuel TV, its broadly distributed linear cable television network and FanDuel TV+, its leading direct-to-consumer OTT platform. FanDuel Group has a presence across all 50 states, Canada, and Puerto Rico.
The company is based in New York with US offices in Los Angeles, Atlanta, and Jersey City, as well as global offices in Canada and Scotland. The company’s affiliates have offices worldwide, including in Ireland, Portugal, Romania, and Australia.
FanDuel Group is a subsidiary of Flutter Entertainment, the world's largest sports betting and gaming operator with a portfolio of globally recognized brands and traded on the New York Stock Exchange (NYSE: FLUT).

We're looking for passionate & experienced technologists, strong communicators, and those with a commitment to continuous improvement as a Senior Software Engineer working for our Sportsbook domain.
You will be working with the FanDuel Sportsbook application, providing our customers with a best-in-class experience as a frontend proficient Software Engineer.
You'll play a pivotal part in making our platform highly usable and will write clear, scalable, and high-quality code.

You work on project ideas with stakeholders, and peers.
You own parts of product and technology and strive to become a subject matter expert.
You write simple and extendable code following standards and best practices. You test your code thoroughly.
You utilize AI-powered tools to maximize efficiency.
You help balance customer requirements with the team requirements.
You help your team evolve by actively participating in the code review process, design discussions, team planning, and ticket/metric/COE reviews.
You classify, store, and handle data in accordance with FanDuel policies.
You track security risks and mitigate and/or escalate them in a timely manner.
You focus on operational excellence, constructively identifying problems and proposing solutions.
You take on projects and make software enhancements that improve the team software and processes.

Degree in Computer Science, related field, or equivalent work experience.
5 or more years of Software Development experience in creating and maintaining mobile applications with experience in React and React Native.
Strong proficiency in JavaScript/TypeScript and core web technologies (HTML and CSS)
A fundamental understanding of data structures and algorithms with experience working with backend for frontend (BFF) architectural patterns.
Proficient with prompting AI-powered development tools Claude or Cursor to accelerate coding workflows, improve code quality, and increasing efficiency.
Experience working with cloud-based infrastructure and technologies, preferably AWS (Lambda, API Gateway, ECS, RDS).
Experienced with optimization utilizing monitoring and alerting tools like DataDog or Sentry.
Experience working with CI/CD pipeline tooling, preferably Jenkins or Buildkite.
Experience with unit testing, testing tools, integrating testing and best-quality practices into an SDLC.

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