Cyber Range Engineer. Sr.

About the role

CESI, a By Light company, is seeking Cyber Range Engineers for the Persistent Cyber Training Environment (PCTE). These roles involve developing and validating cyber range content to support various offensive and defensive cyber operations for the Center for Information Warfare Training (CIWT).

Responsibilities

• Build and configure cyber range content (virtual machines, virtual networks, accounts/roles, tooling, and exercise injects) to meet training objectives.
• Implement and operate offensive and defensive training content, including red cell tools, defensive sensors, and supporting applications, under established design guidance.
• Provide support during execution windows, including environment readiness checks, user access support, troubleshooting, and rapid issue resolution.
• Configure and maintain Windows and Linux hosts used in training environments, including patching, baseline configuration, and restoration of lab state as required.
• Deliver virtual infrastructure and network support (VMware, routing/switching constructs, DNS, TCP/IP), including diagnosing connectivity and performance issues across range enclaves.
• Coordinate with content developers, training staff, and stakeholders to capture requirements, track tasks, and communicate status, risks, and impacts.
• Develop and update technical documentation (build notes, runbooks, diagrams, and after-action inputs) to support repeatable event delivery and knowledge transfer.
• Identify repeat issues and contribute to continuous improvement by recommending and implementing process, automation, or standard configuration updates.

Requirements

• Bachelor’s degree in a technical discipline such as information technology, computer science, systems or software engineering from an accredited college or university.
• Six years of relevant experience can be substituted for a bachelor’s degree.
• Ability to obtain IAT Level II certification within 6 months of date of hire.
• Eight (8) or more years of combined experience with Computer Network Operations (CNO)/Computer Network Exploitation (CNE)/Computer Network Defense (CND) platforms, cyber training, validation exercises, and working with cyber protection teams (CPTs), including planning, coordinating, and execution.
• A graduate of CDA, HAC, NAC, NT, CTEC, CTIAC, COPC, or equivalent service cyber school.
• Hands-on expertise in both Windows and Linux operating system environments.
• Experience working with VMware and supporting systems within virtualized environments.
• Prioritize multiple tasks, projects, and demands.

Qualifications

• Current DoD 8140/8570 IAT Level II or Level III certification.
• Relevant networking engineering certification such as JNCP, CCNA, Palo Alto, CCNA Cyber Ops, or other.
• Certifications in RedHat / Linux / VMware / Windows (install, configure, maintain and administer).
• Experience supporting cyber training to military personnel in a classroom setting.
• Experience using SIEMs, intrusion detection systems, or threat intelligence platforms.
• Experience using scripting or automation tools to streamline cybersecurity operations or environment setup.
• Experience with PCTE.

Skills

• Self-starter in a fast-paced environment.
• Effective written and oral communication with multiple levels of leadership involving both business and technical sides of the business.

Benefits

• Medical, Dental & Vision Coverage
• Wellness Program
• 401(k) Matching
• Disability (Short Term & Long Term)
• Employee Assistance Program
• Life Insurance
• Education & Training
• Generous Leave Policy (11 Federal Holidays, PTO, Military Leave, Bereavement and Jury Duty)