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Chiew Lik Seng

@chiewlikseng

Message

I build high-throughput data pipelines and scalable backend systems.

Malaysia

Message

I'm building low-latency market-data ingestion and streaming pipelines at Trontal Group across crypto, equities, options, futures, prediction markets, and decentralized exchanges.

I engineered concurrent Kafka and database writing that improved throughput 10x, and rebuilt an order-book snapshot engine from a serial cron process into a real-time Kafka-driven system that reduced latency from minutes to seconds.

Previously at MoneyLion, I built customer data platform pipelines that unified customer and lead data into 360° profiles. I increased Kafka consumer throughput from 300 to 3,000 requests per second and reduced marketing campaign launches from days to minutes.

I've also co-founded wonderground.io, where I built e-commerce inventory, order, payment, and fulfillment workflows with Stripe and EasyParcel integrations.

Experience

Work history, roles, and key accomplishments

Current

Backend Engineer

Current

Trontal Group

May 2025 - Present (1 year 5 months)

Developed and maintained low-latency, high-throughput market data ingestion and streaming pipelines across various financial instruments within a distributed microservice architecture. Engineered a custom concurrent writing mechanism achieving 10x improvement in Kafka throughput and database write performance, and re-engineered the order book snapshot engine to reduce production latency from minut

Go Kafka PostgreSQL TimeScaleDB Redis Dragonfly gRPC Kubernetes Distributed Systems Microservices SQL Caching Authorization Opal

Backend Engineer

MoneyLion

Oct 2024 - May 2025 (7 months)

Developed large-scale data ingestion and processing pipelines for MoneyLion's Customer Data Platform, unifying customer and lead data into 360° profiles. Optimized Kafka consumers to boost throughput from 300 req/s to 3000 req/s and redesigned automated marketing campaign pipelines, reducing launch time from days to minutes.

Java Spring Boot Kafka Apache Flink PostgreSQL MongoDB Spark PySpark Data Pipelines

IT Business Technology Analyst

Mizuho Securities Asia Limited

Jul 2024 - Sep 2024 (2 months)

Developed and maintained an in-house system for Fixed Income Middle Office and Equities Middle Office operations. Addressed a concurrency issue within the distributed caching system, significantly reducing the failure rate of automated post-trade operations.

C#.NET Framework WCF MSSQL Concurrency

Education

Degrees, certifications, and relevant coursework

The University of Hong Kong

Bachelor of Engineering, Computer Science

2020 - 2024

Activities and societies: Minor in Finance; HKU Foundation Entrance Scholarship Recipient (Full Tuition Fee Waiver)

Bachelor of Engineering in Computer Science with a minor in Finance. Recipient of the HKU Foundation Entrance Scholarship with full tuition fee waiver.