Lead Software Engineer, React Native

Travelex Limited; City of London; On-site; GBP 70,000 - 90,000; Full time

Job summary

A leading financial services provider in the UK is seeking an experienced software engineer to work closely with their Principal Engineer and Mobile Apps team. This role emphasizes React Native development and also encourages contributions to product features. Candidates should have a strong background in mobile development, excellent communication skills, and experience in mentoring engineers. The position promotes a healthy engineering culture that values learning and sharing knowledge.

Qualifications

• 8+ years of software development experience.
• 5+ years of professional experience in React Native.
• Strong proficiency with TypeScript and mobile development patterns.
• Experience with native modules and bridging in React Native.
• Experience with mobile release processes for the App Store and Play Store.

Responsibilities

• Collaborate with the Principal Engineer and team members.
• Mentor and support engineers.
• Help foster a healthy engineering culture.
• Break down complex tasks into manageable deliverables.

Skills

Software development experience

React Native

TypeScript

Communication skills

Mobile development patterns

Performance optimization

Internationalized applications

Tools

React Native Testing Library

Jest

Detox

Zustand

Redux

Job description

**Role purpose**In this role, you will collaborate closely with our Principal Engineer and the Mobile Apps team members. While this is primarily an engineering role, we are always looking for developers who have a keen eye for product and who can contribute to the development of features at a product level before they are implemented. Work with Product and Design to refine requirements, contribute to planning, and identify risks early.Break down complex tasks into clear, manageable deliverables for the team. Mentor and support engineers, helping them grow their technical skills and confidence. Help foster a healthy engineering culture based on learning, knowledge sharing, and accountability. Knowledge of best practices in security, performance and accessibility**Skills, knowledge, and experience:** 8+ years of software development experience5+ years of professional experience in React NativeStrong proficiency with TypeScript, React Native (or Expo), and mobile development patterns.Strong communication skills — able to work effectively with engineers, product managers, and designers.Experience with native modules and bridging in React Native Familiarity with state management libraries (Zustand, Redux, MobX etc.)Experience with the testing pyramid and tools such as Vitest, Jest, React Native Testing Library, Maestro, DetoxExperience with iOS (Objective-C, Swift) or Android (Java, Kotlin) native development.Experience with mobile release processes for the App Store and Play Store. Experience with performance optimisation and profiling in React Native. Familiarity with analytics and crash reporting tools.Experience building internationalised mobile applicationsExperience developing white-label applications