Senior Software Engineer, Mobile iOS

Get to Know the Team

The MiniApp Platform team builds the technology that enables internal teams and external partners to create and operate MiniApps within the Grab ecosystem. We own the mobile SDKs, native entry points, backend integrations, developer tooling, reliability foundations, and self-service capabilities that help partners move from integration to production safely and quickly.

Get to Know the Role

As a Senior iOS Engineer, you will own and evolve the iOS side of the MiniApp platform. You will build reusable SDK and native capabilities, improve parity across iOS and Android, and help the platform scale from managed partner integrations toward a governed developer ecosystem.

You will work closely with Android, backend, full-stack, QA, product, and partner-facing teams to deliver reliable experiences used across Southeast Asia.

The Critical Tasks You Will Perform

Design, build, and maintain iOS SDK capabilities, native entry points, JavaScript bridges, and reusable APIs for MiniApps.

Improve SDK reliability, performance, security, observability, and backward compatibility across Grab app releases.

Drive iOS and Android capability parity by defining clear cross-platform contracts and consistent developer experiences.

Partner with backend engineers on Horus services, authentication, scopes, transaction capabilities, telemetry, and other platform integrations.

Build automated tests, release tooling, sample applications, and technical documentation that make partner integrations faster and safer.

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 translate requirements into scalable mobile platform solutions.

Provide technical leadership through architecture reviews, code reviews, mentoring, and continuous improvement of engineering standards.

What Essential Skills You Will Need

At least 5 years of professional iOS development experience, with strong proficiency in Swift and the iOS SDK.

Experience designing or maintaining mobile SDKs, frameworks, libraries, or platform components used by multiple product teams.

Strong knowledge of iOS application architecture, lifecycle, concurrency, networking, persistence, and performance optimisation.

Experience with WKWebView-based integrations, JavaScript bridges, RESTful APIs, and secure client-server communication.

A solid understanding of API design, versioning, backward compatibility, testing strategy, and release management.

Hands-on experience with XCTest, unit and integration testing, and CI/CD for iOS applications, frameworks, or SDKs.

Ability to diagnose complex production issues using logs, metrics, traces, Instruments, and systematic debugging techniques.

Strong collaboration and communication skills, with experience working across mobile, backend, QA, product, and external partner teams.

A track record of mentoring engineers and influencing technical direction through pragmatic architecture and high-quality code.

Experience with UIKit, SwiftUI, mobile security, observability, developer tooling, or large-scale platform ecosystems is an advantage.

Life at Grab

We care about your well-being at Grab, here are some of the global benefits we offer:

• We have your back with Term Life Insurance and comprehensive Medical Insurance.
• With GrabFlex, create a benefits package that suits your needs and aspirations.
• Celebrate moments that matter in life with loved ones through Parental and Birthday leave , and give back to your communities through Love-all-Serve-all (LASA) volunteering leave
• We have a confidential Grabber Assistance Programme to guide and uplift you and your loved ones through life's challenges.
• Balancing personal commitments and life's demands are made easier with our FlexWork arrangements such as differentiated hours

What we stand for at Grab

We are committed to building an inclusive and equitable workplace that provides equal opportunity for Grabbers to grow and perform at their best. We consider all candidates fairly and equally regardless of nationality, ethnicity, race, religion, age, gender, family commitments, physical and mental impairments or disabilities, and other attributes that make them unique.