Connor Stack
Senior Software Engineer at Square
Albuquerque, New Mexico, United States
Summary
🤩
Rockstar🎓
Top SchoolConnor Stack is a Senior Software Engineer with 14 years of experience building reliable, production-grade systems, currently at Square in Albuquerque. He has deep backend expertise—particularly in payment and payroll infrastructure—having helped scale Square Payroll from 15 to 50,000 customers and owned critical tax filing and payment systems. Connor pairs hands-on C systems work (including writing a SQLite clone with B-tree storage and serialization logic) with cross-functional collaboration, mentoring, and product-focused delivery. He has experience across startups and larger platforms, including a stint at Aspiration and an internship at Twitter, and a BSE in Computer Science from the University of Michigan. Known for pragmatic problem-solving, he blends low-level data structure design with operational rigor to deliver auditable, scalable services.
14 years of coding experience
9 years of employment as a software developer
BSE, Computer Science, BSE, Computer Science at University of Michigan
Stackoverflow
2,222reputation
207kreached
18answers
34questions
Github Skills (18)
btree10
c1110
c1710
database-design10
data-structure9
data-structures9
file-processing8
file-handling8
file-access8
sql8
fileio8
html6
game-physics6
android6
physics6
Programming languages (8)
Github contributions (5)
cstack/db_tutorial
Aug 2017 - Mar 2022
Writing a sqlite clone from scratch in C
Role in this project:
Back-end Developer
Back-end DeveloperContributions:2 reviews, 100 commits, 29 PRs in 4 years 7 months
Contributions summary:Connor contributed to the development of a SQLite clone written in C. Their primary contributions included implementing database file opening, user input handling, and parsing of basic SQL commands such as "insert" and "select". They added in-memory database functionality, including the serialization and deserialization of rows, and implementing a basic B-tree structure to store data, demonstrating a focus on core database design and functionality.
sqlsqlite3sqlitedatabasescratch
cstack/cell-prototype
Feb 2017 - Jun 2020
Contributions:77 pushes, 2 branches in 3 years 4 months
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