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I'm a senior frontend engineer with a track record of leading teams and delivering scalable web solutions. I currently serve as Frontend Engineer Lead at AELF in Singapore, where I lead a small frontend team, build internal tools with Next.js, and optimize performance and reliability of our frontend assets. I'm passionate about clean code, professional standards, and continuous self-improvement. I thrive in challenging environments, bridging design and engineering to deliver high-quality web experiences. I have hands-on experience across ReactJS, NextJS, SSR, and cloud deployment, and I'm comfortable setting up CI/CD pipelines and coding standards for frontend teams.…I'm a senior frontend engineer with a track record of leading teams and delivering scalable web solutions. I currently serve as Frontend Engineer Lead at AELF in Singapore, where I lead a small frontend team, build internal tools with Next.js, and optimize performance and reliability of our frontend assets. I'm passionate about clean code, professional standards, and continuous self-improvement. I thrive in challenging environments, bridging design and engineering to deliver high-quality web experiences. I have hands-on experience across ReactJS, NextJS, SSR, and cloud deployment, and I'm comfortable setting up CI/CD pipelines and coding standards for frontend teams.

Er An Khoo

PRO

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

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I'm a senior frontend engineer with a track record of leading teams and delivering scalable web solutions. I currently serve as Frontend Engineer Lead at AELF in Singapore, where I lead a small frontend team, build internal tools with Next.js, and optimize performance and reliability of our frontend assets. I'm passionate about clean code, professional standards, and continuous self-improvement. I thrive in challenging environments, bridging design and engineering to deliver high-quality web experiences. I have hands-on experience across ReactJS, NextJS, SSR, and cloud deployment, and I'm comfortable setting up CI/CD pipelines and coding standards for frontend teams.…I'm a senior frontend engineer with a track record of leading teams and delivering scalable web solutions. I currently serve as Frontend Engineer Lead at AELF in Singapore, where I lead a small frontend team, build internal tools with Next.js, and optimize performance and reliability of our frontend assets. I'm passionate about clean code, professional standards, and continuous self-improvement. I thrive in challenging environments, bridging design and engineering to deliver high-quality web experiences. I have hands-on experience across ReactJS, NextJS, SSR, and cloud deployment, and I'm comfortable setting up CI/CD pipelines and coding standards for frontend teams.

Available to hire

Singapore, Singapore

I’m a senior frontend engineer with a track record of leading teams and delivering scalable web solutions. I currently serve as Frontend Engineer Lead at AELF in Singapore, where I lead a small frontend team, build internal tools with Next.js, and optimize performance and reliability of our frontend assets. I’m passionate about clean code, professional standards, and continuous self-improvement.

I thrive in challenging environments, bridging design and engineering to deliver high-quality web experiences. I have hands-on experience across ReactJS, NextJS, SSR, and cloud deployment, and I’m comfortable setting up CI/CD pipelines and coding standards for frontend teams.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Chinese

Advanced

Work Experience

Frontend Engineer Lead at AELF Pte Ltd

October 1, 2024 - Present

Lead a team of 2 frontend engineers; developed internal asset management tool using NextJS; built Telegram mini apps (Votigram) with ReactJS; developed TMRWDAO; established coding standards; set up automated frontend builds; improved page performance and build times; led AI Mining project using Three.js.

Frontend Engineer Lead at TCS

August 1, 2024 - October 1, 2024

Led a team of 5 frontend engineers; developed internal tool using NextJS for the China team to scrape Apple device data; set up project coding standards and automated frontend builds; focused on site reliability and performance.

Frontend Engineer Lead at HyperGAI Pte Ltd

October 1, 2023 - May 1, 2024

Built hyperbooth.ai from scratch and launched in March; developed internal admin tools using Ant Design; created company website with NextJS; set up frontend development environment; integrated logging/analytics (DataDog, Mixpanel, Meta, TikTok).

Senior Frontend Engineer at OKX

September 1, 2022 - October 31, 2023

Enhanced growth-oriented products (referral systems, rewards center, download mechanisms); improved page performance and reliability; elevated SEO for growth-focused offerings; ensured code quality and strategic design.

Full Stack Engineer at Singapore Airlines Pte Ltd

April 1, 2022 - August 31, 2022

Collaborated with product owner and SCRUM master; performed code reviews across frontend and backend; developed backend logic for developers; worked with AWS services (Lambda and Amplify).

Mobile App Developer at Betawerkz Pte Ltd

September 1, 2020 - March 1, 2022

Developed frontend for web (ReactJS) and mobile (React Native); provided strategic consulting (schema & architecture design); conducted code reviews; promoted to Front End Lead in 2021.

Front End Engineer at Novade Solutions Pte Ltd

October 1, 2019 - August 31, 2020

Developed frontend for mobile app (Upvise); performed code reviews; explored ReactJS and related technologies independently.

Full Stack Engineer at Jobline Resources Pte Ltd (Contract) - Outsource to ST Engineering

May 1, 2017 - September 30, 2019

Strategic consulting including studies and database design; developed frontend with ReactJS; built complex analytics frontend with D3.js and HighChart.js; backend with .NET Core and .NET Framework 4.0 (C#); managed MSSQL with EDMX.

Full Stack Engineer at University at Buffalo Department of Behavioral Medicine

May 1, 2015 - August 31, 2016

Requirement gathering; architecture & database design; domain management; managed 8 interns and 2 junior engineers; database management and migration from SQL to MySQL; promoted to Technical Lead to oversee 10 engineers.

IT Specialist at Wooworld Pte Ltd

September 1, 2012 - June 30, 2013

Requirement gathering; strategic consulting (architecture & database design); advising new businesses on corporate formation and privacy/commercial policies; database migration from SQL to MySQL; promoted to CTO overseeing 4 interns.

System Analyst Internship at PSA International Pte Ltd

November 1, 2011 - February 29, 2012

Created VBA-based analyst tool in Excel; generated dynamic PowerPoint slides from Excel data; built waterfall charts in Excel via VBA; contributed to Project Fusion Analytics for Public Transport Emergency Response (FASTER) using .NET Framework 4, Javascript, D3.js, C#, and MSSQL.