Sean Bolton is a San Francisco–based founder and engineering leader with 11 years building payments, mobile, and web products across startups and scale-ups. Currently CEO and Co‑Founder of End Close, he leverages expertise in AI-powered reconciliation for high-volume payments after leading engineering teams and hands-on development at Modern Treasury. Sean blends a hardware-rooted BEng in Electronic & Computer Engineering with an ESTEEM MS from Notre Dame, reflecting both technical rigor and entrepreneurial training. He has repeatedly turned ideas into products—from founding SummerJobs.ie and Divvy to shipping mobile apps at Teamwork—and retains a knack for shipping pragmatic, revenue-facing features like payment processing and retention-focused experiences. A native of Kilrush, Ireland, he brings cross-continental perspective and a founder’s appetite for solving operational complexity with applied ML and scalable engineering.
11 years of coding experience
11 years of employment as a software developer
BEng, Electronic & Computer Engineering, BEng, Electronic & Computer Engineering at University of Galway
Leaving Certificate 2013, Leaving Certificate, Leaving Certificate 2013, Leaving Certificate at Kilrush Community School
Master of Science - MS, Entrepreneurship Science Technology Entrepreneurship Excellence Masters (ESTEEM), Master of Science - MS, Entrepreneurship Science Technology Entrepreneurship Excellence Masters (ESTEEM) at University of Notre Dame
Contributions:2 pushes, 1 branch in 1 year 9 months
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