Jul 2023 – Sep 2024 · 1 yr 2 mos

• Built self-service internal tools for DevOps engineers using Retool and AWS Lambda, saving ~2h/week
• Reduced cold start by ~20% of various internal dashboards used by ~2k+ employees
• Designed onboarding artifacts for new hires to familiarize with Go-based microservice framework

Aug 2022 – Jul 2023 · 11 mos

• Implemented a highly-concurrent message migration service in Go
• Improved Kafka infrastructure observability with effective processing metrics by topic and partition
• Enhanced core (log, event, etc.) packages in SailPoint's internal Go microservice framework, improving developer's productivity

Jan 2022 – Jul 2022 · 6 mos

• Built backward-compatible canary gateway and canary kill switch using Go and various AWS services, projected to a 7% incident reduction
• Updated Slack notification system to send a list of commits deploying to production with backward
• compatible tag, improving deployment observability for 3k+ engineers

May 2020 – Aug 2020 · 3 mos

• Prototyped SSD-aware job scheduling algorithm; improving snapshot service throughput by 37%
• Implemented a multi-threaded program to collect backup size for 120k+ database partitions
• Built real-time job dashboard (JD) webserver to display job information
• Implemented in-memory multi-purpose cache for JD, reducing avg. latency by 89%
• Designed efficient job metadata encoding for JD, reducing read requests on HDFS

May 2019 – Aug 2019 · 3 mos · Vancouver, Canada Area

• Re-designed lookup key data type in neighbor entry table, reducing object memory footprint by 20%
• Implemented dead-letter buffer queue, reducing dropped neighbor entries by 3%
• Implemented benchmark tool to stress test and monitor ARP agent at peak capacity

Jan 2018 – Apr 2018 · 3 mos · Markham, Ontario, Canada

• Implemented internal project status dashboard with Node.js, Angular, MongoDB
• Implemented custom credentials store and session feature, removing security vulnerabilities
• Rewrote data retrieval algorithm using asynchronous calls, improving latency by 25%

May 2017 – Aug 2017 · 3 mos · Mississauga, Ontario, Canada

• Implemented cloud application for employees to search/download documents
• Improved distributed storage service by adding Redis cache layer to the existing architecture
• Modified open-source code coverage generator, saving 5h/week and 18k in license fee

Jan 2016 – Apr 2016 · 3 mos · Toronto, Ontario, Canada

• Implemented a program that collects and aggregates disk metadata and system information.
• Assisted in rolling out backup master server to production