Senior Software Engineer, Fullstack - Web Platform

Grab is Southeast Asia's leading superapp, providing various services such as food delivery, financial management, and transportation.

As a Fullstack Engineer in the Chroma team, you'll be part of Grab's Web Platform group, responsible for building the core infrastructure and modern micro-frontend architecture that powers internal web applications across the company.

Your work will span three key areas:

1. Platform Engineering: Design and build CI/CD-ready frameworks, frontend infrastructure, and reusable UI components that enable other teams to efficiently develop high-quality web applications at scale.
2. Application Development: Build and maintain scalable, user-focused internal web portals and cross-platform systems , including notification infrastructure that surfaces critical information to users across all internal tools.
3. AI-Powered Developer Tooling: Contribute to building intelligent engineering agents , designing agentic workflows, tool integrations, and evaluation frameworks that enable autonomous code generation, review, and deployment across the web platform.

The Day-to-Day activities:

• Design, develop, and maintain internal web portals, reusable UI components, and cross-platform notification systems.
• Develop and maintain web platform tooling and frameworks used for building React applications at Grab.
• Build micro-frontend architecture and integration patterns that enable teams to independently develop and deploy their applications.
• Design and improve AI agent capabilities , building tool integrations, agentic workflows, and evaluation harnesses that enable autonomous software delivery.
• Collect and analyze user feedback, identifying areas for improvement and prioritizing feature development accordingly.
• Implement best practices for web development, ensuring high-quality code and adhering to performance, security, and accessibility standards.
• Maintain thorough documentation of platform design, features, and functionality, effectively communicating with both technical and non-technical stakeholders.
• Continuously assess new technologies and techniques to enhance the engineering capabilities of the team.
• Proactively identify and troubleshoot issues, implement fixes, and ensure platform stability and performance.

The Must-Haves:

• At least 5 years of experience working with modern frontend frameworks such as ReactJS (preferred), Ant Design, Micro Frontends, and Webpack.
• Strong communication skills in English, with the ability to effectively provide updates and resolutions to customers and cross-functional partners.
• Solid experience in web development, along with a willingness to engage in continuous learning to stay up to date with industry trends and emerging technologies.
• Familiarity with CI/CD processes and tools, with hands-on experience integrating frontend applications into automated build and deployment pipelines.
• Comfortable working across the stack, with familiarity in building APIs, implementing Backend-for-Frontend (BFF) layers, and working with databases when needed to support frontend functionality.
• Interest or experience in AI/LLM-powered developer tools, agentic systems, or developer productivity automation is a plus.

Tech stacks: Javascript, Typescript, React, Go, LLM/Agent frameworks

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.