John Speno
Principal Software Engineer at Comcast
New Jersey, United States
Summary
👤
Senior🎓
Top SchoolJohn Speno is a Principal Software Engineer with 17 years of hands-on experience building scalable, security-focused tooling in Python and Django across Linux environments. Currently leading endpoint security efforts at Comcast, he combines deep systems and networking roots with application-level architecture and delivery. His background spans higher education operations and startups—where he architected DNSSEC deployments and end-to-end web business systems—giving him a practical, full-stack view of reliability and operational security. Known for pragmatic leadership and second-tier support ownership, he routinely bridges engineering, operations, and customer-facing teams. Based in New Jersey, he brings rare continuity from early UNIX and DevOps-era systems work through modern cybersecurity engineering.
17 years of coding experience
25 years of employment as a software developer
Bachelor of Arts - BA, Computer Science, Bachelor of Arts - BA, Computer Science at Rutgers University - Camden
Stackoverflow
956reputation
85kreached
11answers
1question
unit-testing
top-5%
Github Skills (83)
security10
backbone10
operating-system10
monitoring10
sql10
intrusion-detection10
pip9
unit-testing9
scripting9
json-api9
telemetry9
powershell8
linux8
python8
ruby8
Programming languages (9)
Github contributions (5)
JohnSpeno/iTerm2
May 2015 - Apr 2026
Contributions:2 pushes in 11 years
iterm2emulatormac-osterminal-emulatormac
JohnSpeno/python-secure-zone
Mar 2012 - Oct 2019
Contributions:11 commits, 5 pushes in 7 years 8 months
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.