Stephen Hallgren is a seasoned technology leader and current CTO with over a decade of experience scaling product and engineering organizations from startup MVP to acquisition. As former CTO of Simplecast (acquired by SiriusXM) and Senior Director leading podcast products at SiriusXM, he blends product-first thinking with hands-on systems and API engineering. He runs |⫮| nonfractional, a studio that helps early-stage startups shape vision, architecture, and go-to-market readiness, and has served as a fractional (but intensely involved) CTO for multiple clients. A pragmatic backend and API contributor—evidenced by his work extending the DigitalOcean PHP client and adding test coverage—he’s comfortable shipping code and leading teams. Based in Albany, NY, he pairs technical leadership with an unconventional edge: ultrarunning and cycling discipline that informs his focus on endurance, incremental progress, and high-velocity execution.
10 years of coding experience
17 years of employment as a software developer
Bachelor's degree, Bachelor's degree at Cedarville University
Contributions:9 commits, 7 PRs, 23 comments in 4 months
Contributions summary:Stephen primarily focused on extending the DigitalOcean API client for PHP. They implemented new features, including the ability to set monitoring flags, support for volumes and tags when creating droplets, and the ability to filter droplets by tag name. Additionally, the user updated existing functionality, such as updating domain records and modifying specifications for droplet creation. They also wrote tests for these new features.
Contributions:4 pushes, 1 branch, 1 comment in 3 years 8 months
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Stephen Hallgren - Chief Technology Officer at Bumper