FanDuel

Senior Software Engineer

FanDuel
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2 days ago

Base Salary

$138k - $173k/yr

Responsibilities

  • Lead the design, development, and delivery of high-scale full-stack applications.
  • Own frontend architecture for web and mobile products while building and extending backend services.
  • Define architectural vision and make technical trade-offs for complex, ambiguous engineering challenges.
  • Build high-performance frontend interfaces, backend microservices, and high-throughput GraphQL APIs.
  • Drive cross-team technical initiatives, manage dependencies, and align architectural strategy.
  • Mentor engineers, lead code reviews, establish testing strategies, and raise engineering standards.
  • Partner with product and business stakeholders to clarify requirements and address technical risks.
  • Optimize applications for scalability, efficiency, resilience, security, and maintainability.

Requirements

  • Bachelor’s degree in Computer Science or a related field, or equivalent practical experience.
  • 5+ years of experience building and shipping production software.
  • Deep expertise with TypeScript, JavaScript, React, frontend architecture, component design, state management, and hooks.
  • Experience with React Native and willingness to work with native Swift/iOS and Kotlin/Android development.
  • Strong knowledge of HTML5, CSS3, responsive design, and cross-browser and cross-device compatibility.
  • Experience optimizing frontend performance through code splitting, lazy loading, asset optimization, rendering optimization, and Core Web Vitals.
  • Hands-on frontend testing experience with tools such as Jest and React Testing Library.
  • Working knowledge of Java and Spring Boot backend services and experience integrating APIs, including GraphQL.
  • Experience using AI development tools such as coding assistants, agentic IDEs, or LLM-based testing and review tools.
  • Proven technical leadership through mentoring, setting technical direction, and improving engineering standards.
  • Preferred experience with design systems, reusable component libraries, WCAG accessibility practices, relational databases, Kafka, GraphQL federation, Gradle, Buildkite, AWS, Docker, Kubernetes, Helm, and Terraform.

Benefits

  • Health plans including medical coverage, fertility and family planning programs, mental health support, and fitness benefits.
  • Paid time off, sick leave, and 14 paid company holidays.
  • Annual bonus and long-term incentive opportunities, including potential cash bonuses and stock participation.
  • 401(k) program with up to a 5% company match.
  • Commuter benefits, pet insurance, and other employee benefits.
  • The role is hybrid, as indicated by the #LI-Hybrid designation.

Tech Stack

Apache KafkaAWSBuildkiteDockerGradleGraphQLHelmiOSJavaJavaScriptJestKotlinKubernetesReactReact NativeSpring BootSwiftTerraformTypeScript
FanDuel

About FanDuel

1,001-5,000 employees

FanDuel builds consumer sports wagering and gaming products in North America, including FanDuel Sportsbook, daily fantasy sports, FanDuel Casino, and horse-racing wagering, plus the FanDuel TV/TV+ media platforms. It earns revenue from consumer bets, fantasy entry fees, and gaming operations, and is available across the U.S., Canada, and Puerto Rico. Founded in 2009 and headquartered in New York, it is a subsidiary of Flutter Entertainment (NYSE: FLUT).

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