full stack software engineer

FanDuel is looking for a mid-level full stack software engineer who can work independently designing, developing, and testing software applications, demonstrating a solid understanding of programming languages and software development methodologies, while actively collaborating with cross-functional teams to translate requirements into functional code, troubleshoot issues, and contribute to code reviews to ensure quality and maintainability.

In addition to the specific responsibilities outlined above, employees may be required to perform other such duties as assigned by the Company. This ensures operational flexibility and allows the Company to meet evolving business needs.

THE GAME PLAN Everyone on our team has a part to play

• Independently design, implement, and deliver high-quality features and code within your team, ensuring successful outcomes for assigned tasks.
• Translate business requirements into technical solutions and actively contribute to team goals, tracking progress and flagging roadblocks early.
• Collaborate with seniors to break down large initiatives and proactively debug complex issues across the stack.
• Navigate high levels of ambiguity independently, propose robust solutions, and evaluate technical trade-offs before implementation.
• Work effectively with cross-functional partners and communicate technical concepts clearly to both technical and non-technical stakeholders.
• Write maintainable, well-tested code and maintain comprehensive documentation for features and system designs.
• Perform code reviews to ensure code quality and adherence to best practices.
• Make informed decisions that consider long-term scalability, maintenance, and system reliability.
• Take full ownership of assigned components while proactively learning new technologies and methodologies to improve the codebase.
• Monitor systems, respond to incidents, and help maintain high standards through knowledge sharing and supporting newer team members as part of an on-call rotation.
• Integrate AI coding assistants and agentic tools into their daily workflow as a default, not an afterthought.
• Use AI to accelerate the full lifecycle - from drafting specs and generating scaffolding to writing tests, reviewing diffs, and producing documentation.
• Exercise strong engineering judgment when working with AI output: validate, test, and review AI-generated code rather than accepting it blindly.
• Help define and improve team standards for responsible, effective AI-assisted development.

• Degree in Computer Science or related field with 3+ years of experience preferred.
• Experience developing backend services using Java and Spring Boot.
• Solid foundation in JavaScript, ReactJS, HTML5, CSS3, TypeScript, and React Native.
• Experience building responsive web and mobile applications with a focus on cross-browser compatibility.
• Understanding of performance optimization techniques (e.g., lazy loading, code minification).
• Familiarity working with CI/CD pipelines and testing frameworks, preferably Jest.
• Working knowledge of relational databases, concurrency, and messaging queues (e.g., Kafka).
• Experience implementing and managing API services using GraphQL and Cosmo for data federation.
• Familiarity with software design patterns for reliable and maintainable code.
• Experience with cloud infrastructure, preferably AWS.
• Familiarity with containerization (Docker) and orchestration (Kubernetes).
• Experience with Gradle, Helm, Terraform, and BuildKite.
• Demonstrated experience using AI development tools (e.g., AI coding assistants, agentic IDEs, LLM-based testing or review tools) in real projects.
• A test-first mindset and commitment to code quality, maintainability, and observability.
• Strong communication skills and the ability to collaborate across functions.

We offer amazing benefits above and beyond the basics. We have an array of health plans to choose from (some as low as $0 per paycheck) that include programs for fertility and family planning, mental health support, and fitness benefits. We offer generous paid time off (PTO & sick leave), annual bonus and long-term incentive opportunities (based on performance), 401k with up to a 5% match, commuter benefits, pet insurance, and more - check out all our benefits here: FanDuel Total Rewards . *Benefits differ across location, role, and level.

FanDuel is an equal opportunities employer and we believe, as one of our principles states, “We are One Team!”. As such, we are committed to equal employment opportunity regardless of race, color, ethnicity, ancestry, religion, creed, sex, national origin, sexual orientation, age, citizenship status, marital status, disability, gender identity, gender expression, veteran status, or any other characteristic protected by state, local or federal law. We believe FanDuel is strongest and best able to compete if all employees feel valued, respected, and included.

FanDuel is committed to providing reasonable accommodations for qualified individuals with disabilities. If you have a disability and need a workplace accommodation or adjustment during the application and hiring process, including support for the interview or onboarding process, please email

The applicable salary range for this position is $116,000 - $152,250 USD, which is dependent on a variety of factors including relevant experience, location, business needs and market demand. This role may offer the following benefits: medical, vision, and dental insurance; life insurance; disability insurance; a 401(k) matching program; among other employee benefits. This role may also be eligible for short-term or long-term incentive compensation, including, but not limited to, cash bonuses and stock program participation. This role includes paid personal time off and 14 paid company holidays. FanDuel offers paid sick time in accordance with all applicable state and federal laws.

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).