Feb 2024 – Apr 2025 · 1 yr 2 mos · Singapore · On-site

• Core Engineering - SDLC, Developer Experience & Runtime

Mar 2023 – Feb 2024 · 11 mos · Singapore

Jun 2021 – Dec 2022 · 1 yr 6 mos

• Team: Human Review Optimization
• Infra Lead of a large scale, distributed, real-time ranking system for multi-arm bandit ranking problems consisting of microservices written in Golang.
• Spearheaded multiple efforts to improve system reliability from 98% to 99.9% including Tiering, Replication, Shard Load Balancing, Rate Limiting, end to end push safety, reducing broadcast requests.
• Designed, implemented, and migrated Secondary Shard Replication for a microservice to reduce downtime of shards during failover/deployment from 10 seconds to zero downtime.
• Drove efforts to improve the throughput and latency for different APIs by batching and reducing inconsistencies between 2 microservices in our event sourcing system.
• Sets priorities and direction for individuals and the team to deliver against Engineering goals and key initiatives.
• Drives Half Yearly roadmaps to prioritise team's work and organisational needs, as well as breaking them down into manageable scope for each individual member
• Involved in interviewing and on-boarding new members of the team. Influences engineering culture in team and advocates for higher engineering and operational excellence.
• Tech Stack Used: Golang, Rust, Python, Hack, Javascript, Python, Thrift, RPC

Mar 2019 – Jun 2021 · 2 yrs 3 mos

• Team: Business Integrity Tooling System - Trust & Safety
• Work with a global team across Operations, Data Science, and Product Engineering to develop proprietary tools and solve infrastructure problems in the Business Integrity space. Partners with cross-functional teams to self-identify gaps, problems and needs and come up with robust solutions.
• Streamlined Policy Management for Ops by building out a self-serving platform for Ops to manage the complex rules of Integrity policies, bypassing the need for engineering.
• Designed and built a A/B platform from scratch to allow end to end experimentation on policy/UI changes to measure the changes in reviewer efficiency and accuracy.
• Actively assist in scoping and executing most impactful work for the team

Dec 2017 – Mar 2019 · 1 yr 3 mos

• Team: Ads Experiment Infra
• A/B Testing Platform for Machine Learning Models for Ads Delivery.
• Rolled out support for Budget-segmented A/B Testing, involving different components of the Ad Delivery Infrastructure such as publishing, indexing, pacing, targeting and auctioning.
• Improved response time to get metrics from our backend data store by porting real time data processing pipeline from Hack to C++.
• Owned the Budget-segmented scheduling system improving it based on users’ feedback including automating the creation of experiments from a multi-step to a one step process.
• Improved the stability and query success rate of the system to query Experiment metrics results from 91% to 98%.

Nov 2015 – Aug 2017 · 1 yr 9 mos · Singapore

• Designed and developed a continuous delivery system that allows anyone to build, deploy, or revert code revisions to multiple Docker containers across multiple servers in multiple availability zones in AWS with zero downtime.
• Refactored and localized the web application to allow for launch in Indonesia.
• Developed systems to automatically process deposits and withdrawals in Indonesia.
• Wrote SDKs for PHP, Ruby, Python, and Java for users to easily consume our API.
• Led design and implementation to support multiple wallets and currencies per user.
• Assisted in migration of frontend to use React.js and Redux.

Jan 2011 – Nov 2015 · 4 yrs 10 mos · Palo Alto, California, United States

Oct 2009 – Jan 2011 · 1 yr 3 mos · Singapore

Jul 2009 – Oct 2009 · 3 mos · Singapore