Senior React Native Engineer — AI-Driven Mobile, Hybrid

Justzapp; Greater London; Hybrid; GBP 90,000 - 130,000; Full time

Benefits offered by this job

Equity package

25 days holiday

Private health insurance

Extended sick pay and parental leave

Job summary

Justzapp in London Nine Elms is seeking a senior mobile engineer to own the end-to-end mobile experience. You’ll build the iOS, Android and web apps in React Native and Expo, delivering fast, reliable features for our 24/7 on-demand service.

You’ll bring 5+ years of production software experience, deep TypeScript skills, and a production-minded mindset. We value curiosity, collaboration, and comfort with uncertainty as you help shape AI-driven product features.

Qualifications

• 5+ years building production mobile apps.
• Strong TypeScript fundamentals.
• Experience with React Native and Expo.

Responsibilities

• Build mobile and web experiences in React Native and Expo across iOS, Android, and web.
• Integrate AI-driven features into the product.
• Own on-call and production health.
• Collaborate with backend and design teams.

Skills

React Native

Expo

TypeScript

Mobile development

iOS

Android

Tools

NestJS

GraphQL

GCP

Firestore

Firebase

Job description

Justzapp in London Nine Elms is seeking a senior mobile engineer to own the end-to-end mobile experience. You’ll build the iOS, Android and web apps in React Native and Expo, delivering fast, reliable features for our 24/7 on-demand service.

You’ll bring 5+ years of production software experience, deep TypeScript skills, and a production-minded mindset. We value curiosity, collaboration, and comfort with uncertainty as you help shape AI-driven product features.