Andrew Dai

Worked closely with all teams to ship brown and greenfield projects throughout the stack

Led implementation and aided design of core next-gen control plane infrastructure and services (device configuration, RPC mechanism, message bus integration, access point management)

Helped automate legacy provisioning to dramatically improve deployment capabilities (>2x more reliable, >10x faster)

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

Socialized best practice process and meta-work techniques by leading a book club and discussion group

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

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

Owned and operated the central data store for Heap’s core functionality — a petabyte-scale PostgreSQL cluster

• Improved reliability by >10x, query performance by >2x, and saved millions $/year

• Led backend development of new analysis features, including Path Analysis

Established systems and processes for understanding and controlling AWS spend

Wore many other hats including blog post author, open source contributor, and DEI advocate. I also onboarded my entire team, and interviewed ~90% of new grads in 2019 and most engineering management

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

Created a health monitoring service used in critical infrastructure, reducing network load

Led a team of students who raised over $250,000 in sponsorship funding and organized events for over 1,000 students

Started a “learnathon” to address disparities in local K12 CS education — 300+ high school students attended

Shifted outreach focus to under-represented minorities in STEM and created beginner-friendly environments

Doubled the size of the organization and increased the scope to better serve undergraduates at Georgia Tech