Infrastructure Cyber Security Engineer / Infrastructure Engineer

In this role, you will work across on-premises cloud, virtualization, Linux and Windows systems, network infrastructure, automation, and compliance-driven security architectures. You will collaborate with infrastructure, cybersecurity, engineering, and mission stakeholders to maintain secure and reliable environments, resolve technical challenges, remediate vulnerabilities, and support systems throughout the development, accreditation, and operational lifecycle., Travel & Passport -

• Travel estimated at 20%
• CONUS travel for customer engagement, technical coordination, system support, or mission requirements

Work Environment - You can work in the client’s offices as needed. In some cases, work in a government facility may be required. Travel may be required for customer engagement, team coordination, and potentially for business meetings.

Cyber Security Engineer II Job Description: Mindbank is seeking a Cyber Security Engineer III to support the design, deployment, security, administration, and sustainment of Secret and Top-Secret mission-critical environments supporting government and Intelligence Community customers. In this role, you will work across on-premises cloud, virtualization, Linux and Windows systems, network infrastructure, automation, and compliance-driven security architectures. You will collaborate with infrastructure, cybersecurity, engineering, and mission stakeholders to maintain secure and reliable environments, resolve technical challenges, remediate vulnerabilities, and support systems throughout the development, accreditation, and operational lifecycle.

Cyber Security Engineer II Responsibilities:

• Support the design and administration of secure Secret and Top Secret infrastructure stacks in on-premises and private cloud environments.
• Support the design and administration of large-scale VMware ESXi and vSAN virtualization platforms.
• Deploy, configure, administer, and maintain RHEL 6/7/8 and Windows Server 2019/2022 systems.
• Implement and remediate security controls in accordance with NIST SP 800-53 Revision 4 and Revision 5 requirements and DISA Security Technical Implementation Guides.
• Support the automation of system builds, patching, configuration, and hardening using Ansible, Jenkins, PDQ, WSUS, and related tools.
• Support vulnerability identification, tracking, and remediation efforts using ACAS, Nessus, Splunk, and other cybersecurity tools to reduce system attack surfaces.
• Support enterprise services and technologies, including Active Directory, databases, Veeam, Horizon, Atlassian Suite, YUM repositories, and monitoring platforms.
• Support the design and administration of LAN/WAN and virtualized network backbones, including troubleshooting complex routing issues involving OSPF and BGP.
• Collaborate across engineering, cybersecurity, program, and mission teams to troubleshoot issues and implement secure infrastructure solutions.
• Support accreditation efforts, including Authorization to Operate packages, compliance documentation, control validation, and security audits.

• Bachelor’s or master’s degree in a STEM field.
• CompTIA Security+ certification or obtain within 12 months from hire.
• CompTIA Network+ certification or obtain within 12 months from hire.
• ITIL Foundation certification.
• Additional DoD 8570 or DoD 8140 certifications are a plus.

Citizenship and Clearance Requirements -

• U.S. Citizenship required
• No dual citizenship
• Active TS w/ SCI eligibility, * Five or more years of experience in infrastructure engineering, systems administration, network engineering, or a closely related technical field.
• Experience administering VMware ESXi and vSAN virtualization environments.
• Experience deploying, configuring, administering, and maintaining RHEL and Windows Server environments.
• Experience supporting infrastructure automation using Ansible, Terraform, or related automation and Infrastructure as Code technologies.
• Experience implementing or remediating security controls in accordance with DISA STIGs and NIST SP 800-53 requirements.
• Strong understanding of on-premises cloud architecture, enterprise virtualization, and secure data center operations.
• Experience identifying, tracking, and remediating vulnerability backlogs in classified, regulated, or compliance-driven environments.
• Experience supporting Department of Defense, Intelligence Community, government mission systems, or similarly regulated environments.
• Ability to work effectively with infrastructure, networking, cybersecurity, software, and mission stakeholders in a classified environment.

Cyber Security Engineer II Preferred Skills and Experience:

• Prior experience supporting the Intelligence Community or national-level organizations.
• Experience supporting LAN/WAN environments, routing, switching, OSPF, or BGP.
• Experience with ACAS, Splunk, Nessus, Veeam, Horizon, Dell Wyse, or related enterprise infrastructure technologies.
• Experience serving as a technical lead, mentoring junior engineers, or coordinating technical work across multiple teams.
• Familiarity with DevSecOps workflows and tools in classified or restricted environments.
• Experience supporting ATO packages, security control assessments, compliance documentation, or cybersecurity audits.
• Experience with Jenkins, PDQ, WSUS, Active Directory, Atlassian Suite, YUM repositories, databases, or enterprise monitoring platforms.