Application Developer

Experis; City Of London; Hybrid; GBP 60,000 - 80,000; Full time

Job summary

A leading technology staffing firm seeks an experienced Application Developer for a hybrid role in London. The successful candidate will have extensive experience with React Native, JavaScript, and TypeScript, and will be responsible for developing scalable applications. This position offers a great opportunity to work on complex projects that integrate native modules and optimize performance.

Qualifications

• Proficient with React Native and Expo open source modules.
• Strong React fundamentals including hooks and context.
• Advanced debugging and problem-solving across iOS/Android platforms.

Responsibilities

• Develop and maintain hybrid applications using React Native.
• Integrate native modules and optimize performance.
• Collaborate on system designs and architecture.

Skills

React Native

JavaScript (ES6+)

TypeScript

Redux

Swift (iOS)

Kotlin (Android)

Tools

GitLab

Adobe Experience Manager (AEM)

Firebase

Job description

Application Developer

London - hybrid

8 Months+

Inside IR35- Umbrella only

Core Technical Skills:

• Proficient with React Native and Expo open source modules (bare workflow)
• Strong React fundamentals: hooks, context, state management
• React Navigation, app routing JavaScript & TypeScript
• Advanced JavaScript (ES6+) and TypeScript
• Type safety and maintainability for large-scale projects
• Native Platform Integration Swift (iOS) and Kotlin (Android) for custom native modules
• Native module integration in Expo
• React Native projects
• State Management & Storage Redux for complex state management MMKV for high-performance key-value storage

Nice to have skills:

• Architecture & APIs System Design
• Deep expertise in complex React Native architectures and patterns
• Subject matter expert for technical problem-solving and architectural guidance
• Designs solutions for the most challenging technical requirements GraphQL Integration Apollo GraphQL client expertise
• Query optimisation, caching, error handling
• Real-time subscriptions (coming soon)
• Integration Adobe Analytics implementation and mobile tracking
• Adobe Experience Manager (AEM) for content delivery
• Firebase Remote Config for feature configuration CI/CD
• Knowledge of native build processes and optimisation
• Go-to person for complex deployment and build issues
• GitLab CICD experience a plus Deep Technical Requirements
• Expert-level debugging and problem-solving across iOS/Android platforms

All profiles will be reviewed against the required skills and experience. Due to the high number of applications we will only be able to respond to successful applicants in the first instance. We thank you for your interest and the time taken to apply!