Jonathan Lynch

Summary

Systems and DevOps engineer with 15+ years across enterprise on-prem, hybrid, and cloud. I replace fragile, hand-tuned environments with idempotent automation, hardened release pipelines, and runbooks teams can actually follow at 3 AM.

Experience

Senior Systems & DevOps Engineer - Salesforce

Apr 2019 - Present

Built and maintained automation for 45+ server tiers across 16 environments to standardize deployments and operational stability.
Led migration from Chef/Cinc to reusable, idempotent PowerShell modules, replacing 60+ legacy cookbooks.
Standardized Jenkins CI/CD with environment-driven parameters, Git-tag promotion controls, and safer release workflows.
Strengthened security and compliance via runtime secrets handling, service-account automation, TLS hardening, and validation gates.
Implemented InSpec and Pester checks to verify system state before production promotion and improve audit readiness.
Coordinated infrastructure changes - server builds, DNS/NTP/proxy, load balancer, firewall - across pre-prod and production.

Operations Engineer - Salesforce Marketing Cloud

Sep 2012 - Apr 2019

Monitored enterprise production systems and responded to alerts in real time to support high availability.
Triaged complex Windows/Linux incidents end-to-end with engineering teams for rapid resolution.
Conducted root-cause analysis and documented corrective actions to drive continuous improvement.
Owned issues from intake through remediation with clear communication and complete ticket records.

Data Center Engineer - Roche Diagnostics

Apr 2011 - Sep 2012

Maintained day-to-day health and uptime of production data center infrastructure.
Resolved service-impacting incidents quickly, coordinating with internal teams and vendors.
Performed server hardware installs, relocations, maintenance, rack-and-stack, and structured cabling.
Produced operational documentation and change records to improve support consistency and audit readiness.

System Administrator & Support Specialist - Belcan Corp & Enerdel (contract)

Nov 2009 - Apr 2011

Provided Tier 1/2 support for 300+ users across three buildings.
Administered Windows Server / Active Directory: accounts, Group Policy, backup, VPN.
Built VMware infrastructure on HP ProLiant (ESXi, vSphere, vCenter, Veeam) and converted 25 physical servers to VMs.
Deployed Symantec Endpoint Antivirus and an OCS Linux-based inventory system.

Skills

Operating Systems: Windows Server 2008 R2 – 2022 (GUI & Server Core), Windows 7/10/11, macOS, Linux (RHEL, Ubuntu, CentOS)

Virtualization: VMware vSphere/ESXi, Hyper-V, VDI

Cloud / Infrastructure: AWS (networking, security groups, IAM), hybrid cloud & on-prem

Automation / CI/CD: PowerShell, Infrastructure as Code, Jenkins, configuration management, versioned deployment/rollback

Monitoring / Ops: Splunk, SCOM, alert triage, incident response, RCA, runbooks, ITIL-style service delivery

Identity / Security: Active Directory, Group Policy, PKI/certificates, secrets handling, patching, vulnerability remediation, audit/compliance

Networking: TCP/IP, DNS, NTP, proxy, VPN, routing/switching, firewall & load balancer coordination, WAN/LAN

Languages: PowerShell, Bash, Python, Java

Tools: MS Office, RealVNC, enterprise ticketing/help desk, remote administration

Education

Purdue University - B.S., Computer & Information Technology; Certificate in Network Security