Jeffrey Clark
Staff Engineer at Big Time Operations Lab
Chicago, Illinois, United States
Summary
👤
SeniorJeffrey Clark is a Staff Engineer in Chicago with 14 years of hands-on experience designing and operating resilient platform infrastructure, private clouds, and automation pipelines. He blends deep systems engineering (BGP, Juniper, firewalls, IDS), infrastructure-as-code, and CI/CD expertise with full-stack sensibilities earned across high-scale payments, research, and consulting environments. At Network Merchants he led DevOps for a SaaS handling over $150B in transactions, and he has contributed backend integrations to CERN’s notable Indico event platform. Equally comfortable mentoring teams, consulting for startups and non-profits, or rolling up his sleeves to fix legacy systems, he emphasizes pragmatic, measurable improvements in performance, security, and operability. Outside of work he’s as likely to break code as to ride a bike or restore old hardware, bringing curiosity and endurance to long-lived systems.
14 years of coding experience
18 years of employment as a software developer
English
Stackoverflow
6,718reputation
1.1mreached
111answers
1question
php
top-5%
git
top-5%
mariadb
top-5%
Github Skills (22)
python10
flask-ask10
flask10
mariadb9
git9
linux9
permission9
sqlalchemy9
php9
rights-management9
access-management9
apidoc8
api8
configuration-management8
html6
Programming languages (21)
Github contributions (5)
indico/indico
Oct 2011 - Aug 2012
Indico - A feature-rich event management system, made @ CERN, the place where the Web was born.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:14 commits in 10 months
Contributions summary:Jeffrey primarily contributed to the Indico event management system's back-end functionality, focusing on permission management, configuration, and integration with external services like WebEx. Their work included implementing and refining directory permission settings, adding arguments for specifying web permissions during setup, and adjusting the use of sudo commands for Linux systems. Additionally, the user added features and integrations for a WebEx plugin within the Indico system.
management-systemevent-management-systemeventspythoncern
h0tw1r3/attract
Jan 2015 - Jan 2022
A graphical front-end for command line emulators that hides the underlying operating system and is intended to be controlled with a joystick or gamepad.
Contributions:2 releases, 141 pushes, 21 branches in 7 years
emulatorsgamepadcontrolledhidesoperating-system
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