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Linh Ha

@linhha

Senior software engineer specializing in TypeScript, React/React Native, and scalable AI-driven full-stack architectures.

Singapore

Message

What I'm looking for

I seek roles where I can lead AI-driven product architecture and engineering teams, build scalable full-stack systems, and drive rapid, quality-focused delivery in collaborative, agile cultures.

I am a senior software engineer with over 10 years of experience in mobile and web development, focused on TypeScript, React.js, React Native, Node.js and cloud architecture. I specialize in building scalable, high-performance AI applications and designing reusable, multi-country multi-platform systems that accelerate regional launches and maintainability.

I've owned end-to-end technical delivery and architecture for production systems, led engineering teams (up to 21 members), and implemented multi-agent RAG systems, Pinecone semantic search, LangChain integrations, and automated AI training/review pipelines that improved accuracy and reduced operational costs.

My leadership emphasizes engineering productivity, strong delivery practices, and rapid iteration under tight timelines. I drive adoption of CI/CD, testing, Agile processes, and AI-assisted developer workflows to boost throughput, code quality, and product–market fit across web and mobile platforms.

Experience

Work history, roles, and key accomplishments

Current

GenAI Engineer

Current

FWD Singapore

Dec 2023 - Present (2 years 3 months)

Owned and architected an end-to-end full-stack human–AI real-time video calling platform, enabling ~85% code reuse across 8 countries and 4 platform variants and accelerating regional launches. Implemented RAG with Pinecone and agent orchestration, improving response accuracy ~40% while reducing LLM token consumption 2.5x.

TypeScript React Native Pinecone OpenAI SDK Real Time Systems Cloud Architecture

Technical Leader

Sponsee

Jul 2021 - Nov 2023 (2 years 4 months)

Owned end-to-end technical delivery for web and mobile platforms, shipping 2 production mobile apps within 2 months and establishing engineering practices for a 15-member team. Led system design (Node.js, MongoDB, AWS) enabling rapid iteration and achieved Top 8 ranking in the AI/LLM Integration market in Singapore.

TypeScript React Native Next.js Node.Js MongoDB AWS CI CD Agile NodeJS

Front-end Team Leader

Property Guru (Viet Nam)

Jul 2019 - Jul 2021 (2 years)

Built and led a front-end team from 0 to 9 engineers, introduced Agile/Scrum, CI/CD and TDD, increasing development throughput ~380% and growing monthly traffic from ~2.2M to ~5.5M users. Drove performance and scalability improvements across web and mobile.

TypeScript React Native GraphQL Redux CI CD TDD Performance Optimization

Senior Mobile Developer

SovereignWallet Network Pte. Ltd.

Jul 2018 - Jul 2019 (1 year)

Delivered a cross-platform cryptocurrency wallet (iOS & Android) in React Native from early build to production and maintained backend APIs on GCP for secure transaction operations. Integrated blockchain networks enabling on-chain transactions and optimized real-time chat to cut message load time ~45%.

React Native Redux Web3.js GCP Firebase

Mobile/Web Developer

Euroland IR

Sep 2016 - Feb 2018 (1 year 5 months)

Developed and maintained a fintech investment platform across web and mobile, migrated frontend from Angular2/Ionic2 to React.js/React Native, improving app performance ~30% and reducing feature development time ~25%.

React React Native Ionic 2 Redux Frontend Migration Performance Optimization Angular2

Mobile Developer

Pearl Hill Corp

Apr 2014 - Sep 2015 (1 year 5 months)

Developed an Android mobile app for accountants, improved UI/UX using Material Design and applied design patterns to improve code maintainability and performance.

Java Android XML SQLite UI UX Design Patterns