Senior Software Engineer, iOS

About the role

Grab is Southeast Asia's leading superapp. As a Senior Software Engineer, iOS, you will join the Partner Apps Platform team, which enables internal and external teams to create, onboard, operate and scale web apps across Grab. You will shape and build platform capabilities that simplify how Partner apps are onboarded, configured, reviewed, released and operated, working across the developer portal, webview JavaScript bridge and backend services, and reporting to the Software Engineering Manager II.

Key responsibilities

• Design, build and maintain iOS SDK capabilities, native entry points, JavaScript bridges and reusable APIs for Partner Apps.
• Improve SDK reliability, performance, security, observability and backward compatibility across Grab app releases.
• Drive iOS capability parity by defining clear cross-platform contracts and consistent developer experiences.
• Partner with backend engineers on authentication, API, SDK scopes, transaction capabilities, telemetry and other platform integrations.
• Build automated tests, release tooling, sample applications and technical documentation.
• Investigate production issues, strengthen monitoring and failure handling, and contribute to incident response and post-incident improvements.
• Collaborate with product, design, QA and partner teams to turn requirements into scalable mobile platform solutions.
• Provide technical leadership through architecture reviews, code reviews, mentoring and continuous improvement of engineering standards.

Required profile

• At least 5 years of professional iOS development experience.
• Experience designing or maintaining mobile SDKs, frameworks, libraries or platform components used by multiple product teams.
• Hands-on experience with XCTest, unit and integration testing, and CI/CD for iOS applications, frameworks or SDKs.
• Experience collaborating with mobile, backend, QA, product and external partner teams, and mentoring engineers.
• Advantageous: experience with UIKit, SwiftUI, mobile security, observability, developer tooling or large-scale platform ecosystems.

Required skills

• Swift and the iOS SDK
• iOS application architecture, lifecycle, concurrency, networking and performance optimisation
• WKWebView-based integrations, JavaScript bridges, RESTful APIs and secure client-server communication
• API design, versioning, backward compatibility, testing strategy and release management
• Debugging with logs, metrics, traces, Instruments and systematic techniques

What we offer

• Term Life Insurance and comprehensive medical insurance
• Parental and birthday leave, plus volunteering leave
• A confidential assistance programme
• FlexWork arrangements such as differentiated hours