Senior Mobile Engineer — Cross-Platform (React Native/TS)

MTP Services; City of Melbourne; On-site; AUD 110,000 - 165,000; Full time

Job summary

MTP Services is seeking an experienced Senior Mobile Developer in Melbourne to lead development of secure, scalable mobile apps for a large-scale federal environment. You’ll work across iOS and Android, building with React Native and TypeScript, and bridging to native technologies.

You’ll contribute to design, development, testing and deployment, collaborating with analysts, UX/UI designers and QA to ensure accessibility and high-quality delivery across the full SDLC.

Qualifications

• Extensive commercial experience developing and releasing React Native apps for iOS and Android.
• Strong TypeScript experience.
• Experience with Expo, including Expo Modules.
• Proven ability to bridge React Native with native technologies like Kotlin, Java, Swift or Objective‑C.
• Experience maintaining large, complex mobile codebases.
• Strong understanding of accessibility standards (WCAG 2.1).
• Experience developing automated tests (unit, component, integration, functional).
• Strong experience integrating REST and GraphQL APIs.
• Ability to translate UI designs into high‑quality mobile components.
• Experience with CI/CD pipelines and related tooling.

Responsibilities

• Design, build, deploy and support mobile applications and integrations.
• Develop across iOS and Android using React Native and TypeScript.
• Work with native mobile technologies including Kotlin, Java, Swift and Objective‑C.
• Ensure solutions meet architectural, security and accessibility standards.
• Participate in code reviews and maintain high coding standards.
• Collaborate with Business Analysts, UX/UI designers, QA and other teams.
• Work with QA to establish test coverage using shift‑left approach.
• Integrate apps with REST and GraphQL APIs and supporting services.
• Contribute across the full SDLC from design to deployment and support.

Skills

React Native

TypeScript

Expo

Bridge Native mobile

Code quality

Accessibility WCAG 2.1

Automated tests

REST & GraphQL

UI components

CI/CD

Tools

Kotlin

Java

Swift

Objective-C

GitHub Actions

Docker

Kubernetes

Job description

MTP Services is seeking an experienced Senior Mobile Developer in Melbourne to lead development of secure, scalable mobile apps for a large-scale federal environment. You’ll work across iOS and Android, building with React Native and TypeScript, and bridging to native technologies.

You’ll contribute to design, development, testing and deployment, collaborating with analysts, UX/UI designers and QA to ensure accessibility and high-quality delivery across the full SDLC.