Cybersecurity Engineer II (Contract to Hire)

Mirion•Carrollton, TX

About The Position

The Cybersecurity Engineer II contributes to delivering secure command-and-control systems for nuclear and other critical infrastructure environments. The role executes assigned system delivery packages within a V-Model framework, collaborating with multidisciplinary teams and following established engineering processes and technical direction. It requires applying standards, procedures, and templates with increasing independence while developing systems engineering knowledge, technical competency, and professional judgment. The position supports cybersecurity requirements definition and traceability; system design and architecture; integration and build; verification and validation; onsite customer system deployment and support; and lifecycle improvement. Work includes building and configuring Windows and Linux environments, virtualized infrastructure and network equipment; applying security controls and hardening; supporting testing and vulnerability assessments; and preparing technical documentation and turnover materials. Travel up to 25% is required. This is a contract-to-hire position.

Requirements

Bachelor’s degree in Cybersecurity, Systems Engineering, Computer Science, Electrical Engineering, Information Technology, or a related discipline.
2 to 4 years of hands-on experience in cybersecurity, systems, or network engineering.
Working knowledge of Windows Server and Active Directory, virtualization, and networking fundamentals, including switching, routing, and firewalls.
Familiarity with system hardening, vulnerability scanning, and patch management.
Clear verbal and written communication skills, including the ability to produce technical documentation and report status.
Familiarity with systems engineering lifecycle practices such as the V-Model.
U.S. citizenship or permanent resident status; ability to obtain site access credentials at nuclear power plants and government facilities.

Nice To Haves

Experience in project-based work with requirements-driven deliverables.
Experience with Linux-based appliances and virtualized clusters.
Exposure to nuclear power, defense, or other NRC/DOE/DOD-regulated environments, including nuclear communications systems and terminology.
Familiarity with NEI 08-09, NIST SP 800-82, NIST SP 800-53, IEC 62443, and NRC 10 CFR 73.54.
Security+, GICSP, or equivalent certification, or progress toward one.

Responsibilities

Translate customer cybersecurity requirements into traceable component-level specifications using the Standard V-Model, in collaboration with Project Engineering Leads.
Maintain requirements and traceability records for assigned scope, flagging gaps, conflicts, and ambiguities for resolution.
Provide effort estimates for assigned tasks.
Contribute to cybersecurity architecture designs for AIM SCS and COTS-based command-and-control solutions, including network segmentation, access control, encryption, and secure communications, using established designs and baselines traceable to NEI 08-09 and CIS benchmark controls.
Develop and maintain assigned design documentation, including network diagrams, configuration specifications, and cybersecurity control mapping matrices traceable to system requirements.
Stand up, configure, and deploy platform environments comprising Windows servers and workstations, virtualized infrastructure, Linux-based security appliances, network switches, and firewalls within an Active Directory domain; apply defined Group Policy-based security controls and hardening standards and follow approved procedures and design documentation.
Execute COTS solution integration tasks, including system hardening, vulnerability analysis, patching, and documentation of results.
Diagnose and resolve integration issues systematically, escalate complex or cross-discipline issues as needed, and document resolution paths.
Maintain configuration management records during builds, documenting changes and deviations to preserve a complete audit trail.
Verify assigned product feature sets against functional and cybersecurity acceptance criteria before formal test completion.
Support development and execution of cybersecurity test procedures mapped through a Requirements Traceability Matrix (RTM) to validate compliance with applicable requirements.
Support Acceptance Testing by performing vulnerability assessments and security scans and documenting and tracking findings through disposition.
Support onsite customer deployment, including physical installation, network commissioning, Active Directory integration, and system configuration under site-specific cybersecurity commissioning procedures.
Assist with Site Acceptance Testing (SAT) alongside customer security, IT/OT, and operations staff, and communicate technical status and test results to the project team.
Assist with training facility personnel and preparing turnover packages.
Travel up to 25%.
Capture lessons learned from system deliveries and recommend improvements to build, integration, and test procedures.
Follow and help maintain team standards, playbooks, and technical library content to promote consistency of engineering processes and solutions.
Develop proficiency in nuclear regulatory and cybersecurity standards through on-the-job experience, training, and mentoring from senior team members.
Perform other duties as required.