Frontend Engineer: React Native / React, Mobile Performance

Jackalope Digital LLC; City of Edinburgh; Hybrid; GBP 50,000 - 75,000; Full time

Benefits offered by this job

Career development resources

FanDuel Total Rewards

Competitive compensation

Job summary

FanDuel Group in the United Kingdom is seeking a Software Engineer (React Native/React) to join our Sportsbook engineering team. You will work on core frameworks, tooling, and performance to empower FanDuel to deliver a fast, reliable mobile experience.

Youll contribute to the React Native Sportsbook app, improve performance, and help scale the codebase while maintaining quality and engineering best practices.

Qualifications

• 2-3 years of experience building mobile applications.
• Strong practical experience with React Native OR React.
• Interest in performance optimization, tooling, and frameworks as well as app features.
• Native Android (Kotlin/Java) or iOS (Swift) experience is a plus.
• Familiarity with mobile app development best practices and testing approaches.
• Exposure to Agile development and collaborative team environments.
• Strong problem-solving skills with the ability to evaluate technical trade-offs with guidance.

Responsibilities

• Contributing to the core React Native codebase that underpins our Sportsbook application
• Working on app launch performance and broader performance improvements
• Building and maintaining frameworks, tooling, and shared components to support feature teams
• Collaborating with engineers across domains to solve cross-cutting technical challenges
• Implementing pragmatic solutions that balance performance, maintainability, and scalability
• Participate in code reviews, share knowledge, and contribute to continuous improvement initiatives
• Joining our on-call rota, sharing out of hours support duties as part of our incident response process

Skills

React Native

React

Mobile app development

Android (Kotlin/Java)

iOS (Swift)

Agile development

Tools

Kotlin/Java tooling

Swift tooling

Job description

FanDuel Group in the United Kingdom is seeking a Software Engineer (React Native/React) to join our Sportsbook engineering team. You will work on core frameworks, tooling, and performance to empower FanDuel to deliver a fast, reliable mobile experience.

Youll contribute to the React Native Sportsbook app, improve performance, and help scale the codebase while maintaining quality and engineering best practices.