Andrew Dai

Current Job

Senior Software Engineer San Francisco, California (Hybrid) July 2023 - present

• Repeatedly improved CI latency as system and organizational complexity ballooned and implemented OpenTelemetry trace collection

• Solved show-stopping performance bottlenecks in applications and database queries

• Developed and promoted continuous delivery principles, project management and roadmapping processes

Andrew Helps You for a Reasonable Fee

Consultant Remote January 2023 - present

Twitter

Senior Software Engineer San Francisco, California and Remote August 2022 - January 2023

• Mentored team of four junior engineers, including coaching on incident response and retrospective best practices

• Took over project to integrate code review tooling with Slack

Meter

Software Engineer San Francisco, California and Remote June 2021 - July 2022

• Led implementation and aided design of core next-gen control plane infrastructure and services (configuration, RPC protocol, message bus)

• Entirely rebuilt continuous integration system (>2x faster, same cost, more self-serve)

• Socialized best practice team, process, and project-organizing techniques by leading a book club and discussion group

• In-house PostgreSQL expert and de facto Terraform/AWS owner

Heap

Software Engineer, Data Platform San Francisco, California and Remote January 2018 - May 2021

• Spearheaded adoption of Golang and worked on modernizing legacy codebase via service and API-first approach

• Owned a petabyte-scale PostgreSQL cluster — improved reliability by >10x, query performance by >2x, saved millions $/year, and led backend development of new analysis features, including Path Analysis

• Also a blog post author, open source contributor, AWS spend watcher, and DEI advocate. I also onboarded my entire team, and interviewed ~90% of new grads in 2019 and most engineering management

Square

Intern San Francisco, California and Remote Summer 2017, October 2017 - January 2018

• Updated tools and utilities for host maintenance, application monitoring, and deployment configuration management

Applied Predictive Technologies

Intern Washington, D.C. Summer 2016

• Migrated core SQL Server schema and launched new analysis homepage

InterSystems Corporation

Intern Cambridge, Massachusetts and Remote Summer 2015, Sept 2015 - Mar 2016

• Designed and developed a full stack web application for bug and feature tracking using Angular.js and Caché ObjectScript