At a Glance
- Tasks: Enhance the React Native codebase for our Sportsbook app, focusing on performance and scalability.
- Company: Join FanDuel, a leading sports tech company with a commitment to innovation.
- Benefits: Competitive salary, flexible working options, and opportunities for professional growth.
- Other info: Join a diverse team that values inclusion and continuous improvement.
- Why this job: Make a real impact on mobile technology while collaborating with talented engineers.
- Qualifications: Experience in React Native development and strong TypeScript skills required.
The predicted salary is between 60000 - 80000 £ per year.
We're looking for a Senior Software Engineer to join our Sportsbook Core Apps 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 enhance the core React Native platform and shared codebase to improve performance, scalability, reliability, and developer experience. You'll collaborate closely with engineers across the organisation to ensure the React Native stack integrates cleanly with native layers and enables feature teams to deliver safely and quickly.
We're looking for skilled engineers who are empathetic communicators with a commitment to continuous improvement and engineering excellence. The ideal candidate has significant experience delivering production React Native applications, can propose pragmatic solutions to performance and platform challenges, and enjoys mentoring others and raising quality standards. 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.
Responsibilities- Enhancing the core React Native codebase for the Sportsbook app, focusing on performance, scalability, and maintainability
- Profiling and optimising app startup and runtime performance across the React Native stack (rendering, bundle size, memory, JS/native thread work, etc.)
- Building and maintaining shared frameworks, tooling, libraries, and components that support feature teams
- Improving developer experience through better tooling, documentation, templates, CI reliability, and build performance
- Contributing to technical design discussions and leading multi-phase improvements, breaking work into incremental, testable deliveries aligned with team priorities
- Supporting continuous improvement initiatives that raise quality, reduce toil, and improve operational readiness within the domain
- Joining our on-call rota, sharing out of hours support duties as part of our incident response process
- Significant experience delivering production React Native applications (OR strong React skills with interest in mobile development)
- Strong TypeScript skills and a solid understanding of React patterns, architecture, and maintainable code practices at scale
- Practical experience profiling and improving performance in React Native applications (startup time, rendering, responsiveness, memory, etc.)
- Experience with React Native native modules / bridging; native Android (Kotlin/Java) and/or iOS (Swift) experience is a plus
- Familiarity with mobile development best practices, testing strategies, 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 in ambiguous situations
- Contribute meaningfully to technical design discussions and propose pragmatic solutions aligned with our technical vision
- Take ownership of delivering platform improvements end to end, including measurement, rollout, and iteration
- Mentor and support other engineers, raising the bar through thoughtful reviews, coaching, and knowledge-sharing
- Participate in wider engineering community initiatives and help spread best practices
FanDuel is an equal opportunities employer. Diversity and inclusion in FanDuel means that we respect and value everyone as individuals. We don't tolerate bias, judgement or harassment. Our focus is on developing employees so that they reach their full potential.
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 requirements listed in our job descriptions are guidelines, not hard and fast rules. You don't have to satisfy every requirement or meet every qualification listed. If your skills are transferable and you are in the ballpark experience-wise, we'd love to speak to you!
Senior React Native Engineer — Core Platform & Performance employer: Job Search Place Limited
At FanDuel, we pride ourselves on being a dynamic and innovative employer that fosters a culture of continuous learning and collaboration. As a Senior React Native Engineer, you'll not only enhance our core platform but also have ample opportunities for professional growth and mentorship within a supportive team environment. Our commitment to diversity, equity, and inclusion ensures that every employee is valued and empowered to reach their full potential, making FanDuel an exciting place to advance your career in the tech industry.
StudySmarter Expert Advice🤫
We think this is how you could land Senior React Native Engineer — Core Platform & Performance
✨Tip Number 1
Network like a pro! Reach out to your connections in the industry, especially those who work at FanDuel or similar companies. A friendly chat can lead to referrals, which can significantly boost your chances of landing that Senior React Native Engineer role.
✨Tip Number 2
Show off your skills! Create a portfolio showcasing your best React Native projects. Make sure to highlight any performance improvements or innovative solutions you've implemented. This will give us a clear picture of what you can bring to the table.
✨Tip Number 3
Prepare for technical interviews by brushing up on your TypeScript and React patterns. Practice coding challenges and be ready to discuss your past experiences with performance optimisation. We love candidates who can articulate their thought process!
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, it shows you're genuinely interested in joining our team at FanDuel.
We think you need these skills to ace Senior React Native Engineer — Core Platform & Performance
Some tips for your application 🫡
Tailor Your Application:Make sure to customise your CV and cover letter to highlight your experience with React Native and performance optimisation. We want to see how your skills align with the role, so don’t hold back on showcasing your relevant projects!
Show Off Your Problem-Solving Skills:In your application, share examples of how you've tackled challenges in previous roles, especially around improving app performance or scalability. We love engineers who can think critically and propose practical solutions!
Highlight Your Team Spirit:Since collaboration is key for us, mention any experiences where you’ve worked closely with other engineers or teams. Whether it’s mentoring others or contributing to design discussions, we want to know how you’ve made a positive impact!
Apply Through Our Website:We encourage you to submit your application through our website. It’s the best way for us to keep track of your application and ensure it gets the attention it deserves. Plus, it’s super easy!
How to prepare for a job interview at Job Search Place Limited
✨Know Your React Native Inside Out
Make sure you brush up on your React Native skills before the interview. Be ready to discuss your past projects, focusing on performance improvements and how you've tackled challenges in the codebase. Highlight specific examples where you've optimised app startup times or improved rendering performance.
✨Showcase Your Problem-Solving Skills
Prepare to discuss how you've approached complex problems in your previous roles. Think about situations where you had to evaluate trade-offs and make decisions under ambiguity. This will demonstrate your quality-focused mindset and ability to contribute to technical design discussions.
✨Emphasise Collaboration and Mentorship
Since the role involves working closely with other engineers, be ready to talk about your experience in Agile teams and how you've mentored others. Share examples of how you've raised quality standards through thoughtful reviews and knowledge-sharing, as this aligns with their focus on continuous improvement.
✨Understand Their Culture and Values
Familiarise yourself with FanDuel's commitment to diversity, equity, and inclusion. Be prepared to discuss how you can contribute to a respectful and inclusive workplace. Showing that you align with their values will set you apart as a candidate who fits well within their team.
