Cyber Security Infrastructure Engineer IV

Apex Systems, LLC; Town of Sun Prairie (WI); Remote; USD 69,000 - 109,000; Part time

Job summary

Everforth Apex Systems in Sun Prairie, WI (Remote) seeks a Cyber Security Infrastructure Engineer IV to expand micro-segmentation across endpoints. You will analyze traffic flows, determine dependencies, and design secure communication policies in collaboration with infrastructure and security teams.

Responsibilities include implementing policies, refining enforcement rules, supporting migrations, and driving change management while aligning with enterprise standards.

Qualifications

• Bachelor's degree in Computer Science, IT, Cyber Security, or related field, or equivalent experience.
• Hands-on experience as Network Security Engineer or Cyber Security Infrastructure Engineer with network policy deployment.
• Strong knowledge of network communications, traffic analysis, stateful firewall concepts, ports, protocols, DNS, Windows and Linux systems.

Responsibilities

• Analyze application and infrastructure traffic to determine communication flow from source to destination.
• Design, document, and implement micro-segmentation policies per standards.
• Develop enforcement rules based on ports, protocols, DNS, and network dependencies.
• Collaborate with owners, infrastructure, and security teams to meet communication requirements.
• Support migration activities, remediating legacy or overly permissive firewall rules.
• Participate in planning, testing, and change management execution.

Skills

Network security

Traffic analysis

Firewall concepts

Windows

Linux

Change management

Education

Bachelor's degree in CS/IT/Cyber Security or equivalent

Tools

Illumio

Palo Alto

Job description

## Job Description# Cyber Security Infrastructure Engineer IVApply**Job#: 3057720****Job Description:**Cyber Security Infrastructure Engineer IV**Location:** Sun Prairie, Wisconsin (Remote)Role OverviewAn enterprise organization is expanding an established micro-segmentation program. This initiative extends micro-segmentation enforcement to end-user devices and laptops across the environment. The selected candidate will analyze network traffic flows, determine application dependencies, and design secure communication policies. This role requires collaboration across infrastructure and security teams to execute policy deployment and manage change processes successfully.Key Responsibilities* Analyze application and infrastructure traffic flows to determine communication movement from source to destination.* Design, document, and implement micro-segmentation policies in accordance with organizational standards and best practices.* Develop and refine enforcement rules based on a deep understanding of ports, protocols, DNS, and network dependencies.* Collaborate with application owners, infrastructure teams, and security engineers to understand technical communication requirements.* Support migration activities, including the remediation and replacement of legacy or overly permissive firewall rules.* Participate in implementation planning, testing, and change management execution.Required Qualifications**Education:** A bachelor's degree in Computer Science, Information Technology, Cyber Security, or a related field, or equivalent professional experience, is required.**Experience:** Hands-on experience as a Network Security Engineer or Cyber Security Infrastructure Engineer with a focus on network policy creation and deployment.**Technical Skills:** Strong knowledge of network communications, traffic analysis, and stateful firewall concepts. Proficiency with ports, protocols, DNS, and basic Windows and Linux systems is required. Experience with change management workflows and tools is preferred.Preferred Qualifications* Experience working with Illumio or comparable micro-segmentation platforms such as Palo Alto.* Prior experience working within large, complex enterprise environments.* Basic understanding of Active Directory and associated network dependencies. *Everforth Apex is a world-class IT services company that serves thousands of clients across the globe. When you join Everforth Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRateds Best of Staffing in Talent Satisfaction in the United States and Great Place to Work in the United Kingdom and Mexico.**Everforth Apex uses a virtual recruiter as part of the application process. Click here for more details. By applying for this job, you agree to receive calls, AI-generated calls, text messages, or emails from Everforth Apex and its affiliates, and contracted partners. Frequency varies for text messages. Message and data rates may apply. Carriers are not liable for delayed or undelivered messages. You can reply STOP to cancel and HELP for help. You can access our privacy policy at https://www.apexsystems.com/privacy-policy**Everforth Apex Benefits Overview: Everforth Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Everforth Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts. In terms of professional development, Everforth Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Everforth Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach. You can access a full list of our benefits, programs, support teams and resources within our ‘Welcome Packet’ as well, which an Everforth Apex team member can provide.**Everforth Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Everforth Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law.**If you require an accommodation under the Americans with Disabilities Act to participate in an interview with a virtual recruiter or to use our website for a search or application, please contact our Benefits Department at [e-mail] or 804-523-8228. Please note that this contact information is strictly to be used for medical ADA accommodations and that no other inquiries will be answered.**UnitedHealthcare creates and publishes the Transparency in Coverage Machine-Readable Files on behalf of Everforth Apex Systems.***Employee Type:** Contract**Remote:** Yes**Location:** Sun Prairie, WI, US**Job Type:****Date Posted:** November 2, 2026**Pay Range:** $50 - $79 per hour