Jeffrey Lancaster
Senior Site Reliability Engineer at Tenable
Annapolis, Maryland, United States
Summary
🤩
Rockstar🎓
Top SchoolJeffrey Lancaster is a Senior Site Reliability Engineer with seven years of progressive systems and security experience, now leading SRE work at Tenable after advancing through multiple engineering roles there. He combines hands-on expertise in Python, Bash, DNS, and Zenoss with a practical security-first mindset rooted in an associate degree in Information Assurance. Jeffrey has a steady track record of improving reliability and operational practices across product and support teams, translating deep infrastructure knowledge into measurable uptime and performance gains. Based in Annapolis, he brings the calm rigor of a long-tenured operator who knows both field support and strategic systems design. Notably, his career progression at a single security-focused company highlights both technical depth and institutional impact.
7 years of coding experience
13 years of employment as a software developer
Broadneck High SchoolAssociate's degree, Computer and Information Systems Security/Information Assurance, Associate's degree, Computer and Information Systems Security/Information Assurance at Anne Arundel Community College
Github Skills (3)
aws-security-hub9
nessus8
python6
Programming languages (1)
Github contributions (5)
tenable/Security-Hub
Jan 2019 - Mar 2024
For use in our Tenable.IO to AWS Security Hub integration
Contributions:1 PR, 1 push, 2 branches in 5 years 3 months
aws-security-hub
jslancaster/home-lab
Oct 2025 - Nov 2025
Contributions:10 pushes, 3 branches in 1 month
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