My name's Leo. My background is in computer science, and I work as a software engineer.

2019 — 2021

San Francisco Bay Area

Payments Infrastructure

2017 — 2018

Santa Monica, CA

First engineering employee at early-stage “stealth mode” startup building nutrition and wellness products

Designed, scoped and specced software architecture, product data model and API, external data integrations, etc

Developed full stack product prototypes, cloud infrastructure and internal tools in JavaScript, Python and Elixir

2015 — 2017

San Francisco, CA

Proposed, designed and led implementation of highly available, type-safe dynamic configuration system

Diagnosed and resolved stability issues, e.g. improved Redis performance 4x while reducing server costs 20%

Directed overhaul of marketing website infrastructure and deployment process, reducing downtime over 10x

Oversaw the operations pager rotation; prioritized and developed improvements in on-call scripts and tools

Built full-stack product functionality and developer tools in JavaScript, TypeScript, Python and Scala

2014 — 2014

San Francisco, CA

Designed and built a portable, scalable continuous deployment system with Docker and Capistrano

Implemented message queue troubleshooting for a microservice-based node.js app with Redis

Created a generic “deferred actions” module for Mailbox, including the “send later” command

2012 — 2014

Stanford, CA

Taught a weekly discussion section of Programming Abstractions and held weekly office hours

Debugged, graded, and provided feedback on 106A, 106B, 106X students’ Java and C++ programs

Led orientation workshops and training exercises for new Section Leaders

2011 — 2015

Stanford University

2011 — 2015