Demo

Network Security Engineer

Apex Systems
Rancho Cordova, CA Full Time
POSTED ON 5/22/2026
AVAILABLE BEFORE 6/18/2026
Job#: 3034854

Job Description:

Network Security Engineer

Location: Rancho Cordova, California (Hybrid)

Employment Type: Contract

Role Overview

We are seeking a contract resource to support the modernization of site-to-site IPsec VPN tunnels and the hardening of firewall access control policies. This role will focus on upgrading existing VPN tunnels from IKEv1 to IKEv2 and ensuring cryptographic configurations meet organizational standards. The contractor will also review and refine firewall rules on Cisco Firepower systems to reduce overly permissive access and align configurations with approved requirements.

Key Responsibilities

  • Review existing site-to-site IPsec VPN tunnels.
  • Upgrade VPN tunnels from IKEv1 to IKEv2.
  • Ensure VPN configurations align with organizational cryptographic standards.
  • Update pre-shared keys (PSKs) to meet a minimum 20-character requirement.
  • Validate VPN tunnel functionality after each change.
  • Review and modify firewall access control rules on Cisco Firepower systems.
  • Restrict firewall rules to required source/destination networks, ports, and protocols, applying the principle of least privilege.
  • Perform validation testing after firewall changes to confirm no service disruption.
  • Coordinate implementation activities with internal teams and external partners.
  • Document all VPN and firewall changes and their validation results.

Required Qualifications

  • Experience managing site-to-site IPsec VPNs.
  • Hands-on experience upgrading VPNs from IKEv1 to IKEv2.
  • Experience configuring and validating VPN tunnel connectivity.
  • Knowledge of cryptographic standards and secure key management practices.
  • Experience managing firewall access control rules with Cisco Firepower platforms.
  • Ability to implement least privilege network access controls.
  • Experience performing post-change validation and troubleshooting network issues.
  • Experience coordinating technical changes and working within structured maintenance window processes.

Preferred Qualifications

  • Experience in healthcare or higher education IT environments.
  • Familiarity with large-scale enterprise network environments.
  • Experience supporting change management processes in production environments.
  • Cisco CCNA Security or CCNP Security (or equivalent experience).
  • CompTIA Security or equivalent security certification.
  • ITIL Foundation certification.

We are an equal opportunity employer and welcome applications from all qualified candidates regardless of race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status.

Apex uses a virtual recruiter as part of the application process. Click here for more details.

If you have visited our website in search of information on employment opportunities or to apply for a position, and you require an accommodation in using our website for a search or application, please contact our Benefits Department at [email protected] or 804-523-8228.

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 ClearlyRated's 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.

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 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 ClearlyRated's 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.

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.

© 2026 Everforth, Inc. All rights reserved.

Everforth Apex Systems is part of the Commercial Segment of Everforth, Inc.

NYSE: EFOR

4400 Cox Road

Suite 200

Glen Allen, Virginia 23060

Everforth Apex 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 have visited our website in search of information on employment opportunities or to apply for a position, and you require an accommodation in using our website for a search or application, please contact our Benefits Department at [email protected] or 804-523-8228. (Do not submit resumes or solicit consultants to this email address). UnitedHealthcare creates and publishes the Transparency in Coverage Machine-Readable Files on behalf of Everforth Apex.

Salary : $65 - $75

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