Responsible for all aspects of technology including software development velocity & scalability; production security, stability, and spend; talent attraction and retention; risk and compliance policies & controls; build vs buy; budgets & forecasts; and more.

Scaled the org from ~30 to ~70 engineers while building, organising & reorganising our teams, processes, and systems even as our business went international, our client base grew 3x, and our assets grew to more than S$5 billion. Spearheaded incepting & operationalizing Endowus’ first overseas engineering office at Hyderabad, India.

As Head of Developer SA (DevAx) for ASEAN, I led a distributed team of Solutions Architects to help software developers across ASEAN make an impact and be successful with AWS. Focussing on cloud native technologies, this newly created team delivered multiple in-account customer engagements as well as technical talks at AWS Summit and local meetups.

Global Product Lead for Observability & Chaos Engineering Services within the Platform Services group that builds & operates the firm’s strategic private cloud named Gaia.

In this role, I have:

• Built from ground-up a diverse team of 25+ multi-skilled software engineers, organized as cross-functional squads that deliver highly impactful products using agile principles & practices.
• Owned the vision, strategy, engineering, delivery, customer experience, operations, and risk & controls for multiple products: Observability Fabric, Chaos engineering framework, Canary synthetics framework, SSO Open Service Brokers, Audit & Financial Advisors, MariaDB database management web console, and Go, the firm’s link shortening & discovery service.
• Influenced the firm’s strategy on initiatives like Identity, Service Mesh & Telemetry as a member of the Architecture Board.
• Regularly presented to senior management including CIOs & GTOC members as well as internal and external clients on Cloud strategy, observability & telemetry, microservices design & chaos engineering.
• Established guidelines & developed tooling for agile software delivery using CI/CD practices for Java, Python, JavaScript and Go.
• Seeded a culture of shared improvement between platform providers & consumers using internal open source development.
• Filed four patents, trained software developers & facilitated lateral and direct recruitment efforts at conferences and universities.

Before March 2016, I was Team Lead in the Securities Core Processing Platform group that was developing a new positioning and settlement system to handle firm-wide STP flows for Equities and Fixed Income, using Large Scale Scrum (LLeSS) process across multiple teams & regions.

As technical lead, some of the major projects that I delivered:

• AME Operations Dashboard – Service for Operations users to monitor & resolve trade settlement exceptions. Built as a realtime, reactive service using C#/WPF frontend, Java backend & Caplin’s Liberator middleware.
• Falcon Realtime Datamart – Service providing snapshots of 40 million stock positions, 15 million cash positions & 15 million open trades in less than 5 minutes. Built using Lightbend’s Akka Framework.
• Contractual Settlement Engine – Converted the end of day contractual settlement process into a realtime operation using microservices architecture.

Senior Engineer in the High Touch Sales Trading front-office development team within Citi Equities Technology. Worked in a team of four that developed PTE – the primary trading system used by Citi’s Program Trading desk globally.

• On-boarded the Program Trading desk onto two new exchanges, collaborating with desk traders and the market connectivity teams.
• Built a FIX to Proprietary messaging adapter that allowed 70MM$ notional daily order flow to be routed to smaller markets and also serve as a failover route to the larger markets.
• Migrated dozens of Java services and Perl/Shell scripts from Solaris to Linux yielding infra cost savings of $90K/year.
• Spearheaded the Development Maturity Model, a development efficiency improvement program within Global Equities. Raised team’s score by 54%.

Before 2012, worked in the Equities Technology Common Components team building shared Java libraries & services.

• Implemented order management APIs within OES, the in-house state management library for orders and executions.
• Developed an automated functional testing suite for Central Locate Service & increased test coverage from 20% to 80%.
• Did several profile guided optimizations using YourKit that led to sub-millisecond response times.
• Trained 40+ people within APAC on Quantum, Citi’s internal high-performance Java application server.
• Provided guidance on FIX messaging messaging usage for on-boarding several new Equity trading exchanges.
• Wrote a new Reporting GUI in Swing which provides traders a realtime view of stock borrow inventory. Uses JMX.