Senior Systems Engineer (IT Projects)

Frontlineinc; Los Angeles (CA); On-site; USD 90,000 - 110,000; Full time

Benefits offered by this job

Health insurance

401(k) with company matching

Three weeks PTO

Certification reimbursement

Training & development programs

Job summary

Frontline is a Los Angeles-based MSP seeking an experienced infrastructure engineer to lead client projects end to end on-site across LA County. You will scope with our vCIO team, build project plans, and execute hands-on work through kickoff to sign-off.

This role requires 5+ years in systems or network engineering with Windows Server, AD, Hyper-V/VMware, and MS 365 administration. Regular travel and a team-focused culture are expected. Benefits and growth opportunities are offered.

Qualifications

• 5+ years in systems or network engineering, with multi-client experience.
• Led infrastructure projects from planning to completion.
• Deep hands-on experience with Windows Server, AD, and virtualization.
• Strong MS 365 administration including Exchange Online and SharePoint.
• Firewall/configuration experience with Fortinet and other vendors.
• Comfortable supporting macOS and Windows in mixed environments.
• Willingness to travel across LA County for on-site work.

Responsibilities

• Lead client infrastructure projects end to end, scoping with vCIO and building project plans.
• Perform hands-on technical work and communicate project status to clients.
• Serve as L3 escalation for service desk and manage outages and alerts.
• Coordinate server, network, and cloud migrations and refreshes.
• On-site deployment, migrations, and ongoing client support.

Skills

Systems engineering

Network engineering

Windows Server

Active Directory

Hyper-V/VMware

Microsoft 365 administration

Exchange Online

SharePoint migrations

Firewall configuration

VLANs & VPNs

On-site support

Client communication

Tools

Fortinet

Meraki

Ubiquiti

SonicWall

Juniper

Datto EDR

PRTG

Job description

Frontline — Worry-Free IT | Burbank, CA (on-site) | Full-time | Regular travel to client sites across LA County

Compensation: $90,000 – $110,000 depending on experience, + benefits

Do Not Apply if you are outside the greater Los Angles area.

You know the moment a project becomes real: the maintenance window is booked, the client is watching, and the cutover either works or it doesn't. If you're the engineer who plans it, runs it, and owns the outcome — this role was built for you.

Frontline is a Los Angeles managed service provider with 15+ years in business, 53+ five-star Google reviews, and annual recognition as a top MSP in LA (Channel Futures MSP 501, Expertise.com, CloudTango). Our clients run media production studios, law firms, manufacturers, nonprofits, medical practices, and even an amusement park on the Santa Monica Pier. Their infrastructure projects are yours to deliver.

What you'll do

You'll lead client infrastructure projects end to end — scoping alongside our vCIO team, building the project plan, executing the technical work hands-on, and communicating with the client from kickoff through sign-off. This is a doing role, not a delegating role. A typical quarter looks like the work our senior engineers delivered over the past 18 months:

• Server and virtualization projects— ESXi-to-Hyper-V migrations, Windows Server 2025 domain controller modernization, physical server replacements, and storage expansions (Synology, datastore offload and cleanup)
• Network refreshes— firewall replacements and HA pairs (Fortinet Security Fabric), switch replacements (FortiSwitch, Ubiquiti, Meraki, Juniper environments), wireless refreshes including outdoor AP deployments, and structured cabling for office build-outs and moves
• Cloud and Microsoft 365 projects— on-prem-to-cloud migrations, Azure decommissions, mail migrations (Barracuda to M365, tenant-to-tenant), M365 hardening with Intune, Conditional Access, and Autopilot workstation rollouts
• Line-of-business application projects— server migrations and upgrades for FileMaker, QuickBooks, Sage, and Business Central environments
• Client onboarding and offboarding— standing up new managed clients on our stack and cleanly transitioning departing ones
• VoIP and connectivity— RingCentral migrations, number porting, ISP and Starlink deployments

Between projects, you'll serve as an L3 escalation point for our service desk and help run down NOC, SOC, and backup alerts (PRTG, Datto EDR, Datto BCDR, Veeam, Augmentt) when your eyes are the right eyes.

Requirements

• 5+ years in systems or network engineering, with at least 2 years at an MSP or in a multi-client environment
• A track record of personally leading infrastructure projects — migrations, refreshes, upgrades — from plan to completion
• Deep hands‑on experience with Windows Server, Active Directory, and Hyper‑V or VMware
• Strong Microsoft 365 administration: Exchange Online and SharePoint migrations, Intune/Autopilot, Conditional Access, Entra ID
• Comfortable supporting macOS alongside Windows — several of our media and production clients run mixed environments
• Firewall and switching configuration experience (Fortinet strongly preferred; Meraki, Ubiquiti, or SonicWall also valued), including VLANs and site‑to‑site VPNs
• Clear, calm client communication — you set expectations, keep people informed, and never let a client wonder what's happening
• Valid California driver's license and reliable transportation — this is an on‑site role with regular travel to client sites across LA County
• Availability for scheduled evening or weekend maintenance windows for production cutovers

Nice to have

• Experience with Datto RMM/BCDR, Autotask, IT Glue, or the broader Kaseya stack
• PRTG or similar network monitoring
• RingCentral or VoIP migration experience
• Certifications: Fortinet NSE/FCP, Microsoft (MS-102, AZ-104, AZ-305), CCNA, or VMware VCP
• Experience supporting media and entertainment production environments (shared storage, editing workflows)

Benefits

• Health, vision, and dental coverage

• 401(k) with company matching
• Three weeks PTO plus all major bank holidays
• Certification reimbursement and training & development programs
• Frequent company lunches, a fully stocked kitchen, and a team culture clients know by name