Senior Software Engineer, Mobile iOS

Grab; Jakarta Pusat; On-site; IDR 600,000,000 - 900,000,000; Full time

Benefits offered by this job

Term Life Insurance

Medical Insurance

GrabFlex benefits

Parental leave

Birthday leave

LASA volunteering leave

Grabber Assistance Programme

Flexible hours

Job summary

Grab is seeking a Senior iOS Engineer to own and evolve the iOS side of the MiniApp platform. You will build reusable SDKs, improve parity with Android, and scale the platform for partner integrations across Southeast Asia.

You will work with Android, backend, QA, product, and partners to deliver reliable experiences and provide technical leadership through architecture reviews and mentoring.

Qualifications

• At least 5 years of professional iOS development with Swift.
• Experience designing or maintaining mobile SDKs or platform components.
• Strong knowledge of iOS architecture, lifecycle, and network/ persistence.
• Experience with WKWebView, JavaScript bridges, RESTful APIs, secure client-server.
• Solid API design, versioning, testing strategy, and release management.
• Hands-on with XCTest, unit/integration tests, and CI/CD for iOS.
• Ability to diagnose production issues using logs, metrics, traces, and debugging tools.
• Excellent collaboration across mobile, backend, QA, product, and partners.
• Mentoring engineers and guiding architectural direction.
• Experience with UIKit, SwiftUI, security, observability a plus.

Responsibilities

• Design, build, and maintain iOS SDK capabilities and native entry points.
• Improve SDK reliability, performance, security, and backward compatibility.
• Drive parity across iOS and Android with cross-platform contracts.
• Partner with backend engineers on services, authentication, and telemetry.
• Build tests, release tooling, sample apps, and technical docs.
• Investigate production issues and contribute to incident response.
• Collaborate with product, design, QA, and partner teams on requirements.
• Provide technical leadership through architecture reviews and mentoring.

Skills

Swift

iOS SDK

UIKit

SwiftUI

WKWebView

RESTful APIs

XCTest

CI/CD

Debugging

Cross-team collaboration

Tools

JavaScript bridges

Backend integrations

Job description

Company DescriptionAbout Grab and Our Workplace

Grab is Southeast Asia's leading superapp. From getting your favourite meals delivered to helping you manage your finances and getting around town hassle-free, we've got your back with everything. In Grab, purpose gives us joy and habits build excellence, while harnessing the power of Technology and AI to deliver the mission of driving Southeast Asia forward by economically empowering everyone, with heart, hunger, honour, and humility.

Job Description

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.

QualificationsWhat 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.

Additional Information Life at Grab

• 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.