Jon Lonergan

Systems Engineer • IT Infrastructure • Apple Platforms

jonlonergan.com U.S.

Systems Engineer specializing in endpoint management, identity, and enterprise tooling across macOS, Windows, iOS, and Android. I focus on reliable infrastructure, secure device lifecycle operations, and clear, human‑centered support.

Experience

Client Systems Engineer

Cell Signaling Technology (CST) • Jan 2022 — Present • Danvers, MA (Hybrid)
  • Manage 1000+ computers and 300+ mobile devices across a hybrid environment.
  • Own identity management, endpoint security, fleet standards, compliance, patching, and fleet health.
  • Partner across teams to keep infrastructure dependable, secure, and well‑maintained.

Desktop Support Specialist

Cell Signaling Technology (CST) • Jul 2015 — Jan 2022 • Danvers, MA
  • Delivered responsive desktop support with clear communication and follow‑through.
  • Maintained end‑user systems to keep teams productive and secure.

Mac Genius

Apple • Feb 2014 — Jun 2015 • Peabody, MA
  • Troubleshot and repaired Apple hardware and software with urgency and precision.
  • Known for empathetic customer support and clear explanations.

Service Specialist

Apple • Apr 2012 — Feb 2014 • Peabody, MA
  • Taught Apple software in a learn‑by‑doing style to customers of all levels.
  • Supported troubleshooting for iOS, iPod, and Apple TV hardware and software.

Sales Specialist (Part‑time)

Apple • Jun 2010 — Apr 2012 • Peabody, MA
  • Created excitement around Apple products through solution‑based selling.
  • Helped facilitate public workshops on Apple hardware, software, and services.

Skills

Role Focus

Systems Engineering Client Platform Engineering IT Infrastructure Endpoint Management MDM

Endpoint & IT Ops

Networking Network Infrastructure Ubiquiti UniFi Video Surveillance Access Control Device Lifecycle Patch Management Asset Management Active Directory Microsoft Entra (Azure AD) AWS IAM SSO MFA Zero Trust Troubleshooting Hardware Repair

Enterprise Tools

Intune Google Workspace Atlassian Cloud Jira Jira Service Management Jira Assets Confluence OpsGenie CrowdStrike KnowBe4 Druva inSync

Platforms

macOS Windows iOS iPadOS Android

Automation & Scripting

PowerShell Bash Zsh Python

AI & Automation

AI‑Assisted Automation AI Tooling Prompt Engineering Workflow Optimization Gemini

Productivity

Outlook Microsoft Word Microsoft Excel Microsoft PowerPoint Google Drive Google Docs Google Sheets Google Slides Google Forms Gmail Google Calendar

Customer & Support

Customer Experience Communication Service Delivery

Methods

Lean Principles Process Improvement Documentation Standardization

Certifications

Apple Certified Support Professional Apple Certified IT Professional Jamf 100 Jamf 200