Network System Security Engineer - ThreatLocker, Meraki, Ubiquiti About RWK IT Services RWK IT Services is a managed service provider supporting a diverse base of business clients across many distinct environments. Our engineers don't babysit a single network - they set the security and infrastructure standards that protect dozens of organizations at once. This is a senior seat for someone who wants that scope and the influence that comes with it. Role Summary This is a senior, in-person role owning ThreatLocker and Zero Trust strategy across 30 to 50 client environments. You will not manage a single network - you will decide how new capabilities are applied, sequenced, communicated, and governed across our entire client base, balancing cyber risk against operational disruption and end-user impact. You will also serve as a trusted technical voice to our leadership and to our clients' leadership. What You Will Do Design, deploy, and tune ThreatLocker / Zero Trust policies across many client tenants. Evaluate new platform features and decide what is mandatory, optional, or skip across the fleet - then plan the rollout.

Lead cross-environment audits:

identify a risk in one client and assess and remediate the same pattern fleet-wide. Architect, deploy, and support Cisco Meraki and Ubiquiti/UniFi networks. Communicate cyber risk, change impact, and remediation plans to MSP leadership and to clients. Mentor existing technical staff and raise the overall engineering standard. Required Qualifications 7-10+ years in corporate IT and/or MSP environments. Demonstrated experience managing security and configuration at scale across many environments, not just one. Deep, hands-on networking competence (DHCP, DNS, Active Directory, firewalls, VLANs) - this is table stakes for the role.

Strong business communication:

able to brief senior management on risk vs. disruption vs. cost.

Self-directed critical thinking:

sees an issue in one environment and proactively audits the others. Disciplined change management on endpoint-controlling systems, including testing, staging, and rollback planning. Certifications We value the following certifications, but we weigh judgment and scale experience just as heavily as the badges. If you are not certified in an area, tell us what qualifies you to own it. ThreatLocker "Cyber Hero" (or equivalent application allowlisting / Zero Trust experience). Cisco Meraki certification (or equivalent hands-on deployment experience).

Ubiquiti / Uni

Fi certification (or equivalent hands-on deployment experience).

Position Details Employment type:

Full-time.

Work location:

In person - Frankfort, IL 60423 (required).

Seniority:

Senior / lead engineer, including mentoring of existing technical staff.

Compensation:

Competitive salary commensurate with senior MSP experience (range provided during the process). Benefits 401(k) with matching Health insurance Dental insurance Vision insurance Paid time off

Job Type:

Full-time Pay:

$70,000.00 - $106,000.00 per year

Benefits:

401(k) 401(k) matching Dental insurance Health insurance Paid time off Vision insurance Ability to

Commute:

Frankfort, IL 60423 (Required)

Work Location:

In person