Senior React Native Engineer

Contract Type:

Permanent

Location:

London   

Contact Name:

Daire Connolly

Contact Email:

d.connolly@masonalexander.ie

Date Published:

12-Dec-2025

A rapidly growing UK-based healthtech company is building smarter, tech-enabled solutions to improve health outcomes through personalised digital care.

They are looking for a  Senior React Native Engineer  to join their team and take the lead on building out  customer engagement and retention features  across their mobile app. This includes everything from daily tracking and push notifications to weekly check-ins and in-app content delivery.

This is a high-impact, product-facing role where you’ll work closely with cross-functional teams to deliver features that support users on their health journey and drive long-term engagement.

Responsibilities:

  • Develop and maintain key customer-facing features within the React Native mobile app, such as:
    • Daily/weekly check-ins
    • Progress tracking
    • Messaging and support interfaces
    • In-app content delivery
    • Add-on purchase flows
  • Translate behavior change models into simple, user-friendly mobile experiences
  • Contribute to architectural decisions and codebase best practices
  • Monitor performance and proactively resolve bugs, crashes, and UX challenges

Requirements:

  • 4+ years in software engineering, with at least 2 years of hands-on React Native experience
  • Strong proficiency in  TypeScriptReact NativeGraphQL , and  Expo
  • Experience deploying apps to the  App Store  and  Google Play , with OTA updates
  • Familiarity with  CI/CD pipelines  and integrating third-party SDKs
  • Track record of building high-quality mobile UIs and user experiences
  • Strong understanding of mobile testing (unit, integration, E2E)

Retention & Product Skills:

  • Experience working on products with an emphasis on  user retentionengagement , or  behavior change
  • Knowledge of  push notification strategiesin-app messaging , and  customer lifecycle design
  • Comfortable collaborating with cross-functional teams (Product, Marketing, Clinical, etc.)
  • Skilled in writing clear technical specs and documentation

Preferred:

  • Background in  healthtech  or  consumer wellness apps
  • Familiarity with tools like  BrazePostHogStripe
  • Knowledge of  privacy frameworks  (e.g. GDPR), especially around notifications and tracking consent

Please note applicants must be UK citizens or hold ILR to be considered for this opportunity

APPLY NOW
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