John Jensen
Manager, Network Reliability at CoreSite
Reston, Virginia, United States
Summary
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SeniorJohn Jensen is a data-driven network reliability manager with 11 years of hands-on experience designing, automating, and operating large-scale datacenter and backbone networks. Currently leading Network Reliability at CoreSite, he has driven nationwide 100G backbone builds, operationalized OCX Enhanced Network Services, and embedded DevOps practices to shrink man-hours and technical debt. His background spans multiple roles at Amazon where he standardized network designs for building automation, developed production-grade automation for BGP and monitoring, and supported early CloudFront deployments. Comfortable with Perl, Python, Ansible, Docker, and observability stacks like Elasticsearch and InfluxDB, he blends scripting chops with pragmatic architecture choices. Known for mentoring engineers and resolving high-severity incidents, he favors the simplest robust solution and relentlessly automates repetitive work. An underrated strength is his long-term perspective: he balances rapid deployment with maintainability, having evolved from data center technician to strategic manager.
11 years of coding experience
15 years of employment as a software developer
Stackoverflow
422reputation
37kreached
9answers
8questions
Github Skills (157)
python10
nsd10
paging10
ansible10
soap-client10
wsdl10
bind10
soap10
alpine-linux9
automation9
ssh9
kotlin9
docker9
devops9
java9
Programming languages (8)
Github contributions (5)
jensenja/graphite-snmp-collector
Aug 2014 - Aug 2014
Contributions:12 commits in 4 days
jensenja/NicTool
Jun 2017 - Aug 2017
Contributions:14 pushes, 5 branches in 1 month
dns-managementsolution-managementdns
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