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I’m Steve Ler, a full-stack software engineer focused on building reliable web and mobile products across the Laravel and React ecosystem. I integrate AI coding agents into development workflows while keeping strong code review practices and architectural ownership. I’ve optimized backend performance for chart rendering, improved UI/UX responsiveness, and built automation for real-time data discrepancy detection. I also design and deliver end-to-end systems—from microservices and reporting pipelines to mobile offline-first features—backed by CI/CD, Docker/Kubernetes, and disciplined engineering standards.…I’m Steve Ler, a full-stack software engineer focused on building reliable web and mobile products across the Laravel and React ecosystem. I integrate AI coding agents into development workflows while keeping strong code review practices and architectural ownership. I’ve optimized backend performance for chart rendering, improved UI/UX responsiveness, and built automation for real-time data discrepancy detection. I also design and deliver end-to-end systems—from microservices and reporting pipelines to mobile offline-first features—backed by CI/CD, Docker/Kubernetes, and disciplined engineering standards.

Steve Ler

Full Stack Developer, Back-End Developer, Front-End Developer, +2

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I’m Steve Ler, a full-stack software engineer focused on building reliable web and mobile products across the Laravel and React ecosystem. I integrate AI coding agents into development workflows while keeping strong code review practices and architectural ownership. I’ve optimized backend performance for chart rendering, improved UI/UX responsiveness, and built automation for real-time data discrepancy detection. I also design and deliver end-to-end systems—from microservices and reporting pipelines to mobile offline-first features—backed by CI/CD, Docker/Kubernetes, and disciplined engineering standards.…I’m Steve Ler, a full-stack software engineer focused on building reliable web and mobile products across the Laravel and React ecosystem. I integrate AI coding agents into development workflows while keeping strong code review practices and architectural ownership. I’ve optimized backend performance for chart rendering, improved UI/UX responsiveness, and built automation for real-time data discrepancy detection. I also design and deliver end-to-end systems—from microservices and reporting pipelines to mobile offline-first features—backed by CI/CD, Docker/Kubernetes, and disciplined engineering standards.

Available to hire

I’m Steve Ler, a full-stack software engineer focused on building reliable web and mobile products across the Laravel and React ecosystem. I integrate AI coding agents into development workflows while keeping strong code review practices and architectural ownership.

I’ve optimized backend performance for chart rendering, improved UI/UX responsiveness, and built automation for real-time data discrepancy detection. I also design and deliver end-to-end systems—from microservices and reporting pipelines to mobile offline-first features—backed by CI/CD, Docker/Kubernetes, and disciplined engineering standards.

Skills

Language

Work Experience

Full Stack Developer (contract) at Duke-NUS Medical School

December 1, 2025 - December 1, 2025

Introduced DTOs and custom requests to standardize data validation. Enforced code quality via a Git pre-commit pipeline using Laravel Pint, Prettier, and ESLint, and verified changes through GitHub Code Owners workflows. Authored AI governance and development workflow processes, and led documentation and review practices for AI-assisted multi-feature implementations. Architected type-safe backend database structures for complex polymorphic multi-entity relationships and migrated API workflow into GitHub-based version-controlled documentation. Mentored internal teams and authored technical wiki content using Claude Code.

AI-assisted Full Stack Developer (Contract) at Duke-NUS Medical School

December 1, 2025 - Present

Introduced DTOs and custom request standards for consistent data validation. Enforced code quality via Git pre-commit pipelines using Laravel Pint, Prettier, and ESLint, and ensured review/verification through GitHub Code Owners. Authored Claude.md defining AI-assisted development architecture and coding standards, directing Claude Code for multi-file implementations, refactoring, and documentation, with output review and correction prior to merge. Architected type-safe backend database structures using polymorphic tables for complex multi-entity relationships. Migrated API documentation and workflow to GitHub for version-controlled collaboration, and mentored internal stakeholders using a technical wiki authored via Claude Code.

System Developer / Full Stack Developer (contract) at Alphline Technologies Pte. Ltd.

May 1, 2025 - December 1, 2025

Developed React Native mobile applications using Gluestack UI and SQLite to support robust offline data handling. Engineered end-to-end testing suites using Appium to ensure high-performance mobile functionality and reliability.

System Developer / Mobile Developer at Alphline Technologies Pte. Ltd.

May 1, 2025 - December 1, 2025

Developed React Native applications using Gluestack UI and SQLite for robust offline data handling. Engineered end-to-end testing suites with Appium to ensure high-performance mobile functionality and reliability.

Full Stack Developer at ZTO Asia Pte. Ltd.

June 1, 2024 - May 1, 2025

Re-engineered backend chart rendering queries to significantly reduce data-load times and enhance UX. Built web/mobile applications using Laravel and React Native, including automated Slack alert systems for real-time data discrepancy detection. Developed frontend features with React/React Native/JavaScript/TypeScript and styling/tooling such as Tailwind, HTML5/CSS3, and state management (Redux/Zustand). Delivered backend services in PHP (Laravel) and Node.js with authentication using JWT/OAuth. Built supporting AI-tooling workflows using Claude Code and Gemini for assisted development, while maintaining full code review and architectural ownership.

Full Stack Developer at Z T Asia Pte. Ltd.

June 1, 2024 - May 1, 2025

Optimized backend query performance for chart rendering, reducing data load times and improving UX. Built web/mobile applications using Laravel and React Native, including automated Slack alert systems for real-time data discrepancy detection. Developed frontend experiences using React, React Native, JavaScript/TypeScript, Tailwind, HTML5, CSS3, Redux, and Zustand. Implemented backend services using PHP (Laravel), Node.js, and authentication mechanisms such as JWT and OAuth. Used AI tooling (Claude Code and Gemini) to support development while maintaining code review and architectural ownership.

Executive at ZTO Asia Pte. Ltd.

August 1, 2020 - January 1, 2022

Supported asset & operations workflows including managed IT asset tracking and customer support for parcel status inquiries via internal systems. Built a reusable Excel template to deduplicate tracking codes and auto-apply seller-specific prefix codes. Used Python (pandas) to reformat and split station-level logistics reports for sub-contractor driver management.

Full Stack Developer (Mobile/Systems-focused) at Z to Asia Pte. Ltd.

August 1, 2020 - January 1, 2022

Designed and deployed a Docker/Kubernetes-based 'Data Processor' microservice, improving high availability via pod strategy tuning. Built real-time live chat systems for driver-customer communication while supporting ongoing extension of customer- and driver-facing applications. Created logistics reporting systems for warehouse operations, including configurable date filtering and coverage across inventory tracking, cod outstanding, delivery/warehouse status, and driver manifests. Delivered asset/ops automation by building reusable Excel templates and using Python (pandas) to reformat and split reports for sub-contractor driver management.