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John L. Email & Phone Number

Senior Cloud Ops Engineer at LeaseAccelerator
Location: Denver Metropolitan Area, United States 20 work roles 4 schools
3 work emails found @epsilon.com 3 phones found area 469 LinkedIn matched
✓ Verified July 2026 4 data sources Profile completeness 86%

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Work email j****@epsilon.com
Direct phone (469) ***-****
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Current company
Role
Senior Cloud Ops Engineer
Location
Denver Metropolitan Area, United States
Company size

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Quick answer

John L. is listed as Senior Cloud Ops Engineer at LeaseAccelerator, a with 74 employees, based in Denver Metropolitan Area, United States. AeroLeads shows a work email signal at epsilon.com, phone signal with area code 469, and a matched LinkedIn profile for John L..

John L. previously worked as Senior Security Linux Architect at Cencora and Senior Devops Engineer at United Launch Alliance (Ula). John L. holds Master Of Telecommunications (Mtel), Emphasis In Data Communications from University Of Denver.

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jl@epsilon.com
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Profile bio

About John L.

I am a seasoned IT professional with a strong data-driven approach, seeking advanced roles such as Dev(Sec)Ops, Cloud Engineer, SRE, Team Lead, Manager, or Director. My qualifications include certifications as a Kubernetes Administrator (CKA), Information Systems Security Professional (CISSP), OCI Foundations 2020 Associate, Terraform Associate, and ITIL. Additionally, I hold a Master’s degree in Telecommunications. I am confident that I am the best overall candidate for your DevOps, DevSecOps, SRE, or Cloud Engineering role. My extensive experience, proven track record, and unwavering dedication uniquely position me as the ideal choice for your team. I value effective leadership and extreme ownership.I bring extensive experience across all facets of IT, from automating configurations for containerized applications in clustered environments to handling business requirements, employee management, KPIs, SLAs, and production oversight. I have successfully led numerous long-term technology projects, guiding diverse teams of experts and consistently delivering results ahead of schedule and under budget. My commitment, often demonstrated through weekends and late nights, has honed my expertise in innovative and effective ways. I am adept at managing budgets, teams, and technology.I am a CrossFit Level 1 trainer. I have been doing CrossFit over 7 years. I’m serious about health and fitness. I am also a 9 year veteran of the USAF where I served honorably in Europe with one combat deployment. Specialties: CKA, CISSP, Terraform, OCI certified, AWS cloud engineer, ITIL Certified, RHEL, Ubuntu, Docker, Ansible, Puppet, Mesos, Jenkins, Gitlab, Nessus, Splunk, CICD.

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LeaseAccelerator
Leaseaccelerator
Senior Cloud Ops Engineer
Denver, CO, US
Employees
74
AeroLeads page
20 roles · 31 years

John L. work experience

A career timeline built from the work history available for this profile.

Senior Security Linux Architect

Current

Managing Linux security and infrastructure globally. Emphasis on IAM, SSH key management and security architecture. Centralized key management, enhanced security and compliance, automated key lifecycle, integrated with critical IT infrastructure seamlessly, improved IAM with realtime monitoring and logging.

Sep 2024 - Present

Senior Devops Engineer

Centennial, Co, Us

Built the first, full-featured Observability Platform in AWS for all teams with Prometheus and Grafana. Allowing the entire organization to view, trend and resolve issues before they become problems. Automated with Terraform and Ansible.

Nov 2023 - Sep 2024

Senior Cloud Ops Engineer

Reston, Virginia, Us

Senior Cloud Ops Engineer building out resources in AWS and OCI using Terraform, Ansible and introducing structure to deployments for Jenkins CI/CD pipelines. Automating everything! Team Lead and mentor to two other DevOps Engineers. Subject matter expert on OCI features, troubleshooting and capabilities for the company. Including tagging, VPN, security lists, NSG, LBs, Policies, storage, compute, etc.

Jun 2023 - Nov 2023

Senior Devops Engineer

On Contract To General Motors Financial

Short contract to build out Terraform modules for a large policies project. During this time I also completed my Certified Kubernetes Administrator (CKA) and Terraform Associate certifications.

Oct 2022 - Jun 2023

Senior Cloud Systems Engineer, Devops

Austin, Texas, Us

As a Senior Cloud Systems Engineer I work daily with Configuration Management tools like Puppet and Ansible. Creating projects and managing code repositories with Gitlab. Creating Gitlab runners to ensure quality, tested and functional code. Using Jenkins CI/CD to trigger jobs with packer for creating images with functional and integration testing. Working in an Agile environment automating configurations and building out infrastructure with Terraform in AWS and OCI. Building migration tools to assist with migrating from one cloud to another. Deploying apps in Kubernetes and Mesos clusters with docker including a provisioning system used across all business units.

Nov 2016 - Sep 2022

Team Lead, Senior Devops Engineer/Linux Build Sa

Irving, Texas, Us

● Team leader for Service Delivery and DevOps automating builds and solutions since 2014● Puppet/Ansible architect and Git administrator● Work daily with PE, ruby, sourcetree, stash, bamboo, r10k and hiera● Migrating environments into AWS using EC2, S3, VPC, Docker, etc. ● Converting over 60 custom puppet modules to Ansible● Automating everything (literally)● Senior Linux admin and Solaris admin● Configured 8 cache only BIND 9 servers for award winning production application● DevOps engineer - fluent in Puppet Enterprise and Ansible core, git, hiera, stash, bamboo, ruby, sourcetree ● Continuous Integration with r10k, code manager, Bamboo● Wrote custom facts in Ruby. Fluent in Bash. Effective in Python ● Personally built over 1,700 web/database/hadoop/Cassandra/kafka servers (as of August 2016), using automated post-installation tasks● Built many load balanced systems for critical production SFTP/DNS/MTA applications● Wrote and edited server security configuration standards, complex build sheets, checklists and guides● Puppetized server security hardening (PCI/Sox compliant)● Created automated inventory collection and import into CMDB● Created automated security audit module in Puppet which checks 35 PCI configuration items

Mar 2014 - Nov 2016

Devops Engineer

Philadelphia, Pa, Us

50% Developing automation tools in bash, perl, ruby and python 50% RHEL/CentOS Server Operations.Senior VMware AdminSplunk server builds, performance engineering, development, dashboard queries.Puppet development, automated syntax checking and Git/Subversion administration.Jenkins continuous integration job development.iSCSI configurations with HP/Lefthand P4500 Storage.Completed Introduction to Ruby and Ruby on Rails training.MySQL, nginx, kanbanpad, mongo, elastic search, wpmon, etc.

Apr 2013 - Mar 2014

Senior Linux/Vmware/Cisco Ucs Engineer

Ibm

Armonk, New York, Ny, Us

Consolidating data centers by building out a completely virtualized environment for a Fortune 500 company. Fully automating the build process from start to finish and audit compliant!Installing, configuring, upgrading existing equipment with IBM's full line of hardware. From tiered SAN storage (V7000, DS8800, and EMC), fabric, standard and distributed switches, physical hosts, virtual machines, clusters, clones and templates running on X-series, including HP Blade and Cisco UCS Blade (B-series) enclosures.Senior Linux Systems Engineer. Working primarily with RedHat v5, 6, OEL 6, SLES v11. Building/configuring VMs, patching, LVM, bonding network interfaces, setting kernel parameters for SAN performance and Security. Scripting automated solutions with bash, python and perl. Extensive experience with SteelEye LifeKeeper Linux Clusters.VMware Admin - utilizing profiles, auto deploy, etc. Building out fault tolerant, clustered, highly available VMs. Installing, configuring, upgrading vSphere ESX/ESXi v4 and 5 with a intense concentration on HA, FT, vMotion (including storage vMotion), DRS, Data Recovery, Storage I/O and Advanced settings. Also installing, upgrading and configuring vCenter (v5). Currently preparing for the VCP 5 exam. Cisco UCS Engineer. Optimizing the virtual infrastructure on Cisco B-series blade servers. Setting standards for the data center on Cisco's UCS platform. Configuring profiles, pools, networking and SAN fabric on the UCS.Personally built/upgraded and delivered over 60 projects in first 6 months.Built, upgraded, configured, documented hundreds of virtual and physical servers. Built and/or upgraded over 24 ESX/ESXi hosts on IBM System-X and HP/Cisco Blade servers over 4 month period.Was asked to become Team Leader in a high-pressure environment within first 4 months.

May 2012 - Apr 2013

Adjunct Faculty - College Of Engineering And Computer Science

Colorado Springs, Co, Us

Formally instructed sophomore and junior level courses in Computer Science. Developed curriculum, created syllabi and exams for courses such as SQL, System and Network Administration, Computer Forensics, Security Risk Management, Computer Networks and Communications, Vulnerability Assessment and Management.

Jun 2010 - Dec 2012

Senior Linux And Storage Administrator

Federal Contractor To The U.S. Department Of Interior

Migrating to, supporting and maintaining an internal cloud solution with vSphere 5.0.Backup Oracle DBA supporting both 10g and 11g.Managing a highly customized Puppet setup for efficient Configuration Management.Managing Brocade 5x00 switches and a variety of SAN disk arrays. Proactive monitoring and automating resolutions with Nagios, Splunk and Tripwire.Evaluated and updated the department STIG for Mac OS X to include several optional but highly recommended configuration changes. Also evaluated/updated the department STIG for Linux (Red Hat and CentOS).

Oct 2011 - May 2012

Senior Enterprise Cloud Engineer

Bangalore, Karnataka, In

-Automated Solaris 10, OVM server and zones builds.-Automated RHEL and SUSE VM provisioning and post installation processing.-Developed Enterprise Cloud architecture and configruations on HP blades and Cisco UCS using IT PAM and VMware.-Implemented Oracle IDM and RAC.-Applied security to Cloud components.

Feb 2011 - Oct 2011

Senior Solaris Administrator And High Availability Architect

Hanover, Md, Us

-Lead Administrator and Architect for High Availability on a project to stabilize, automate and virtualize the top 14 products for an International Information Resource company.-Set the standard for a Billion dollar company to virtualize, migrate and document P2V servers and applications into Logical Domains (Oracle VM server) and zones.-Automated installations, configurations, and security for servers located world-wide. Using flash archives for installation and recovery.-Lead Architect to design, test and implement the migration and consolidation effort on a enterprise level scale. -Aggressively resolved complex problems while maintaining strong communication channels with a world-wide team of experienced system administrators.

Jul 2010 - Feb 2011

Senior Unix Systems Administrator

Glen Allen, Va, Us

- Supporting real-time sytems for numerous financial customers like Edward Jones. Providing critical support for securities industry software and other custom financial systems in a production environment. Helped the company to pass several ISO 27000 audits and assessments.- I’ve gained extensive knowledge in Hudson configurations, builds, installs, user mgt, administration, parameters and scripting, managed plugins. Hudson is a continuous integration tool written in Java, which runs in a servlet container, such as Apache Tomcat application server.- Weblogic v10: installed, configured, and maintained multiple (up to 20 instances on a single server) weblogic servers supported in a 99.995% uptime environment for many clients in financial brokerage firms and banks. - JBoss versions 4 and 5 administrator. Gained extensive knowledge with mod_jk while improving communication between JBoss and Apache. Also configured reverse proxies in Apache. - Part of a team to implement Web Authentication Methods (WAM) for Apache and JBoss using SiteMinder. Maintained Tricipher for unified authentication Identity and Access Management (IAM). Configured users managed policies and resolved problems. - Created the first virtualized environment with Xen v3.0.3 on RHEL 5.4. Created VMs for developers, applications and environments (prod, qa, dev, test). This greatly enhanced process isolation in a secure, self-contained application environment. Resource contention and system/environmental changes were nearly eliminated. Supported developers in Test, QA and Production environments. - Performed many routine and junior level tasks in Sybase ASE v15 in a production environment. Created user accounts, edited the interfaces file for new builds, stopped/started the DB, added table space, viewed stats, wrote scripts to automate tasks as needed.

Feb 2010 - Jul 2010

Technical Assistant To The Director Of Infrastructure And Operations And Unix Support Manager

Denver, Colorado, Us

- I managed a team of expert system administrators responsible for over 300 Unix/Linux enterprise-class, geographically dispersed servers, storage and appliances in a 24x7x365 production environment. I have managed IT professionals for 8 years. During this time I managed production Database Administrators, Network Engineers and Operations in addition to Unix Support. In all I directly supervised over 15 IT professionals I have written employee evaluations, managed a multi-million dollar budget and had full accountability for all data center assets and equipment. - Virtualized our medium-sized data center. Including Solaris LDOMs and zones, VMware ESX/ESXi v3.5 and 4. - RedHat Linux and Solaris expert system engineer. - Managed all aspects of administration and inventory for over 300 physical and virtual servers.- I managed vendor relations for many years while at CU. I was responsible for negotiating and renegotiating contracts for over 2 million dollars in hardware and over a million dollars in software. I did all this while saving the University over 1.5 million dollars over the years as manager for system contracts.- Storage Specialist - I have several years experience multi-pathing iSCSI and Fiber connections to a Compellent SAN and managing NAS (openfiler). I manage over 150TB of data on new and existing hardware. - Security Practioner. Of the ten CISSP domains in the Common Body of Knowledge (CBK) I have hands-on experience building, configuring and maintaining security in five out of ten domains. - I have over five years of disaster recovery and business continuity experience. I have led a team of administrators through numerous disaster recovery tests over the past five years.- I was the lead administrator for several domain DNS/DHCP servers. Built for reliability, and security. I have worked closely with BIND since 2001. I have performed numerous successful upgrades. - Worked closely with developers across the entire SDLC.

Mar 1999 - Feb 2010

Instructor Unix System Administration

Front Range, Colorado, Us

I instructed “CIS 220 Fundamentals of UNIX” at Front Range Community College in Westminster for several semesters. As a part-time adjunct faculty member I instructed a very diverse student base to navigate a UNIX file system and gain fluency in command-line utilities, editing key system files, and reading system log files, as well as be able to debug problems with these tools. I instructed students to be proficient in networking, security concepts and ethics, such as: OSI model network layers; SSL; SSH; DNS; and FTP. And to understand essential system and network services and concepts with practical application.

Jan 2001 - May 2002

Unix System Administrator

Palo Alto, Ca, Us

Managed every aspect of ~110 Enterprise Sun Servers. Including storage, file systems, patching, troubleshooting, maintenance, clustering systems, installation, configuration and security via OS hardening and Log management.

Oct 1999 - Sep 2001

Instructor Unix System Administration

Denver, Co, Us

UNIX Operating System Instructor. From dual boot installation to the vmstat command. Taught fundamentals of UNIX file structure, commands, troubleshooting, monitoring, crontab, mail, fsck, shell scripting and user account maintenance to students who were new to computers and UNIX.

Aug 1998 - Mar 1999

Unix System Administrator

Tci Of Colorado

Installed, maintained and supported over 40 production HP-UX hosts for Pay Per View! Managed storage arrays, DNS and ID Management and Authentication systems for Single Sign On.

Feb 1997 - Oct 1997

Support

Interactive Software Systems

Support a reporting tool that worked with any database management system. Supported users through installation, configuration and troubleshooting.

1996 - 1997 ~1 yr
Team & coworkers

Colleagues at LeaseAccelerator

Other employees you can reach at leaseaccelerator.com. View company contacts for 74 employees →

4 education records

John L. education

Master Of Telecommunications (Mtel), Emphasis In Data Communications

University Of Denver

Bachelor Of Science, Computer Information Systems

Columbia College

Associates In Applied Science, Information Management

Community College Of The Air Force

Course Completed, Certified Kubernetes Administrator Course

Noble Work Foundation
FAQ

Frequently asked questions about John L.

Quick answers generated from the profile data available on this page.

What company does John L. work for?

John L. works for LeaseAccelerator.

What is John L.'s role at LeaseAccelerator?

John L. is listed as Senior Cloud Ops Engineer at LeaseAccelerator.

What is John L.'s email address?

AeroLeads has found 3 work email signals at @epsilon.com for John L. at LeaseAccelerator.

What is John L.'s phone number?

AeroLeads has found 3 phone signal(s) with area code 469 for John L. at LeaseAccelerator.

Where is John L. based?

John L. is based in Denver Metropolitan Area, United States while working with LeaseAccelerator.

What companies has John L. worked for?

John L. has worked for Leaseaccelerator, Cencora, United Launch Alliance (Ula), On Contract To General Motors Financial, and Oracle.

Who are John L.'s colleagues at LeaseAccelerator?

John L.'s colleagues at LeaseAccelerator include Zainab Plasticwala, Vishnu G, Ca Vikas Tiwari, Chandrakanth P, and Alejandra Elshaer.

How can I contact John L.?

You can use AeroLeads to view verified contact signals for John L. at LeaseAccelerator, including work email, phone, and LinkedIn data when available.

What schools did John L. attend?

John L. holds Master Of Telecommunications (Mtel), Emphasis In Data Communications from University Of Denver.

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