Senior Digital & Technology Developer

About SMEC

For 75 years, SMEC has built a reputation as a trusted partner on major transport and energy infrastructure projects around the world. Our design leaders and specialist teams draw on deep expertise and experience delivering projects across a range of diverse environments, from some of the world’s most remote locations to some of the densest urban surroundings.

We understand the value of relationships to ensure that we comprehensively address all requirements at each stage in a project’s development. By closely collaborating with our clients, contractors, subcontractors and asset operators, we deliver commercially informed design thinking through local specialists who understand on-the-ground context and industry expectations.

We stand apart through our historically diverse, globally connected workforce, operating out of more than 40 countries with strong local relationships.

Our diverse workforce of professionals are highly respected experts who bring talent, experience and passion to their fields. Challenging boundaries, we look beyond the project scope to ensure we leave a positive impact in the communities we live and work in and allow present and future generations to thrive.

Qualifications

• At least 10 years in mobile/cross-platform development
• At least 8 years Flutter and/or native iOS/Android in production
• Able to independently execute feature developments, perform code reviews, and collaborate with teammates of varying expertise and experience
• React Native familiarity is expected; deeper RN experience is a plus

Required Technical Skills

Mobile

• Solid Flutter and/or native iOS and Android development - screens, navigation, forms, lists.
  • Flutter: Dart, widgets, state management, platform channels
  • Native iOS: Swift (Objective-C a plus), UIKit and/or SwiftUI
  • Native Android: Kotlin (Java a plus), Android SDK / Jetpack basics
• Advice on when performance or device APIs require native modules over cross-platform code
• Strong in iOS and Android permissions, app lifecycle, store release basics and delivering consistent quality
• Push notifications, secure storage, maps and geolocation including geofencing, camera and file capture with progress feedback and retried upload
• Navigation, state management, networking layer, shared UI components, and environment and API client configuration
• Offline sync patterns - local persistence, form drafts, queued submissions and conflict handling
• User-Interfaces (UI) that display integration-backed content (documents, data summaries, spatial context, near-real-time field data), with considered loading, empty and error states

APIs & Security

• Consuming versioned backend JSON APIs with JWT or similar authentication methods - token refresh, custom headers, encrypted payloads
• Login and session flows, including multi-factor and OTP verification
• Comfortable reading API docs and handling common errors, including retry and failure feedback
• Understanding of device info in API requests (app version, OS, device id)

Adjacent skills

• Able to discuss and agree API contracts with Laravel/PHP backend developers
• Open to working with Python services (FastAPI, Django, or Flask) as data sources
• Angular or React web knowledge to align mobile app flows with the web app
• Exposure to React Native for migration (e.g., TypeScript) and shared mobile work

Engineering

• Git and code review. Mobile CI and build pipelines.
• Debugging with device logs and network tools across devices and OS version
• Reusable automated tests for critical logic
• Basic TestFlight / Play Console (or similar) release experience

Good to Have

• Stronger React Native delivery experience (beyond familiarity)
• Background location / geofencing in production
• Biometrics or extra mobile security practices
• Azure DevOps or cloud CI for mobile builds
• Experience with form-heavy enterprise apps
• Experience with telemetry-style UX or simple 3D/spatial viewers on mobile

Key Responsibilities

• Deliver new features for mobile applications to meet project, client and unit requirements
• Maintain and extend existing applications across supported devices and OS versions
• Integrate applications with the unit's backend services and external data sources
• Implement secure login and session handling, on-device credential storage and multi-factor verification / authentication
• Deliver location-based features including site presence checks and permission handling
• Support app information capture, transfer and synchronisation over unreliable connections
• Build screens presenting integration-backed content - documents, data summaries, spatial and near-real-time sensor data
• Maintain offline app feature capabilities and local caching for use without connectivity
• Own application structure and patterns for environments, retries and sync/error handling
• Work with backend and web teams on interface contracts, versioning and device metadata
• Manage builds and store releases so live changes are tested, auditable and reversible
• Maintain code quality, documentation, peer review and code tests
• Resolve faults across applications, device features, uploads and connected services

At Surbana Jurong, we put talent, hard work, teamwork and a fun workplace together to approach problems and solve them creatively and collaboratively. Join us in making a positive impact on the world!