Blockchain Engineer

• Sep 2021 - Present

web3 tech: smart contracts, subgraphs & devops in managing graph cluster

Senior Software Developer

• Feb 2021 - Sep 2021

NFT marketplace: https://crypto.com/nft

Engineering Lead

• Jun 2020 - Feb 2021

Delivered a reconciliation system from scratch to eliminate the manual steps finance have to perform during each month-end closing. The system allows non-technical users to configure the rules in the front-end and ultimately map to a job in Airflow which runs a few Athena queries. Technologies: React, Spring Boot, Airflow, Presto, Fargate & Kubernetes (EKS).Other responsibilities include: project & people management, design reviews for other systems in the department

Senior Software Engineer

• Aug 2018 - Jun 2020

Lead engineer working on data pipeline platform for financial transaction reporting at Corporate Technology. The project includes data ingestion from multiple systems into data lake, enabling teams in the department to consume from the data lake to perform ETL with Spark and store the report into a data warehouse and visualized from a BI tool. Technologies: Spark, Spring Boot, EMR & Fargate.Acting as Scrum master and uses Terraform to manage infrastructure as code on AWS, also driven the branching strategy and CI/CD for collaborators to work effectively on the data pipeline project. Show less

Software Engineer

• Feb 2016 - Aug 2018

Full stack developer in ES6 and Java where I meddle in: Front-end application which uses the React/Redux stack. I had the opportunity to split our single front-end codebase into two separate codebases to allow higher velocity. Also tweaked and enabled the SEO for our vulnerability database. Our search services which use Java 8 for translating user's queries into an Elastic search query. Had the chance to migrate our search backing store from Postgres to Elasticsearch. And in this process, I set up our entire search infrastructure and meddle with the backend service. JIRA integration where I had the chance to use GO and built a reverse proxy application that lives in the customer infrastructure to enable our platform to communicate with user's JIRA instance. Other platform services which are on Spring Boot when there are new features to be built. Show less

Software Engineer

• Dec 2014 - Jan 2016

Part of the clinical documentation team where nurses and doctor from NHG Group would use our system for recording patient's diagnosis. Used C# and Javascript. Part of the clinical documentation team where nurses and doctor from NHG Group would use our system for recording patient's diagnosis. Used C# and Javascript.

Teaching Assistant

• Jan 2013 - Jun 2014

Lab tutor for CS3240 Interaction Design. Throughout the few semesters, I helped evolved the lab syllabus to an introduction to web development (HTML/CSS/JS) and usage of Bootstrap. We also added Arduino syllabus in my last semester. Lab tutor for CS3240 Interaction Design. Throughout the few semesters, I helped evolved the lab syllabus to an introduction to web development (HTML/CSS/JS) and usage of Bootstrap. We also added Arduino syllabus in my last semester.

Internship

• May 2013 - Jul 2013