Ezekiel Loh

Software Developer + Frontend, Backend, Full Stack, and DevOps

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KnowledgeNode

Developing a Full-Stack web application to support collaborative learning for students and professors.

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OnePA slot selection view with selected badminton court times

OnePA checkout cart summary before payment

Clawdbot

bot

Book kakibukit 7.30pm-9.30pm 22/04 schedule

Clawdbot

🏸 Confirm your booking:

📍 Venue: kakibukitcc_BADMINTONCOURTS

📅 Date: 22/04/2026

⏰ 7:30pm-9:30pm → 7:30 PM, 8:30 PM

🔧 Mode: SCHEDULED

Reply YES to confirm, or send a corrected command.

OpenClaw Booking Agent

Automating a competitive nightly court-booking window through a Telegram-first workflow, browser-native slot capture, and reliability-focused scheduling.

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Hi there

Hi, I'm Ezekiel. I'm a backend engineer currently working on core trading infrastructure, with interests in distributed systems, low-latency backend engineering, and building dependable systems that can handle complexity well.

What I enjoy most about engineering is that there is always more depth to explore. I like understanding how things work, refining how they are built, and growing into someone who can take on increasingly challenging problems with confidence and clarity. Outside of engineering, I enjoy tennis, chess, and connecting with people who enjoy thoughtful conversations and meaningful work.

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Technologies I’ve Worked With

HTML

CSS

JavaScript

React

Vue.js

Next.js

TailwindCSS

Material UI

TypeScript

Express

Node.js

MongoDB

PostgreSQL

Python

Java

C++

Golang

Professional Experience

A few of the teams I have learned from so far, spanning trading infrastructure, banking products, and developer tooling. Each role pushed me to think differently about systems, execution quality, and the kind of user experience that good engineering should create.

Jul 2025 – Present

OKX

Backend Software Engineer, Core Trading Infrastructure

Building low-latency backend systems for core trading infrastructure, spanning risk controls, RPC transport, migration validation, and on-call automation.

Shipped risk-control backend features for auto-deleveraging and delta-neutral hedging mode across 20+ pre-production and production releases touching 10+ services and modules.
Implemented polling and ordered callback execution in an Aeron-based RPC SDK replacing gRPC on the WebSocket order path, supporting a low-latency transport path validated up to 100k QPS.
Built replay-based verification workflows for a Java-to-C++ trading-counter migration and AI-assisted incident automation with Dify across 14 production logstores.

JavaC++Aeron RPCDify

Sep 2024 – Dec 2024

GXS Bank

Fullstack Software Engineer Intern

Built customer experience and operations tooling with a focus on maintainable interfaces, API clarity, and reliable internal workflows.

Built customer experience and operations tooling with Go backend services and React interfaces, collaborating with stakeholders to improve internal support workflows.
Developed a customer-360 API and integrated frontend flows for operations use cases, focusing on maintainable interfaces and reliable data handling.

GoReactCustomer 360

May 2023 – Jul 2023

Scantist

Software Engineering Intern

Built product features across backend data flow and frontend report delivery with a strong emphasis on practical developer tooling.

Developed Django backend features and PostgreSQL integrations for security-report generation workflows.
Built Vue.js UI components and PDF-based report flows for SCA and SAST reporting experiences.

DjangoVue 3PostgreSQL