Senior Software Engineer

Description:

We're looking for a Senior Software Engineer (iOS / React Native) to join our Sportsbook engineering team. You'll be working on foundational engineering, focusing on improving the underlying frameworks, tooling, and performance that enable FanDuel to deliver an exciting and innovative customer experience.

Working with our React Native Sportsbook application, you'll build and optimize select native iOS components while also enhancing the core React Native codebase to improve performance and scalability.

We're looking for skilled engineers who are empathetic communicators with a commitment to continuous improvement and engineering excellence. The ideal candidate will have experience with both React Native and native iOS development, able to propose pragmatic solutions for performance optimization, work collaboratively within our technical vision, and contribute to our culture of continuous learning. As a member of this team, you will strengthen the foundations of our mobile platform, enabling FanDuel engineers to deliver features more effectively while maintaining platform quality and best practices.

We are a growth company so there are plenty of opportunities for you to learn & grow with us.

Some of your responsibilities will include:
 

• Developing and maintaining native iOS components to support computationally intensive or performance-critical features
• Enhancing the core React Native codebase for the Sportsbook app, focusing on performance, scalability, and maintainability
• Profiling and optimizing app startup and runtime performance across both React Native and native layers
• Breaking down engineering work into incremental, testable deliveries aligned with team priorities
• Supporting continuous improvement initiatives that raise quality and developer effectiveness within the domain
• Joining our on-call rota, sharing out of hours support duties as part of our incident response process
  
   

What We're Looking For
 

• Significant experience delivering production React Native applications
• Proficiency in iOS development with Swift, including bridging React Native with native modules
• Knowledge of mobile performance profiling and optimization techniques (startup time, rendering, memory, etc.) especially on the native side
• Familiarity with mobile development best practices, testing, and CI/CD pipelines
• Experience working in Agile teams and contributing to collaborative technical standards
• A quality-focused mindset with strong problem-solving skills and the ability to evaluate trade-offs
  
   

Additionally, our Senior Engineers are able to:
 

• Contribute meaningfully to technical design discussions and propose pragmatic solutions
• Take ownership of delivering performance improvements and shared components end to end
• Mentor and support other engineers in bridging/native usage and performance considerations
• Participate in wider engineering community initiatives and help spread best practices
  
   

Player Benefits

We treat our team right

From our many opportunities for professional development to our generous insurance and paid leave policies, we’re committed to making sure our employees get as much out of FanDuel as we ask them to give. Competitive compensation is just the beginning. As part of our team, you can expect:
 

• An exciting and fun environment committed to driving real growth
• Opportunities to build really cool products that fans love
• Career and professional development resources to help you refine your game plan for owning and driving your career and development
• Be well, save well and live well - with FanDuel Total Rewards your benefits are one highlight reel after another