Security Systems Engineer 3 - Washington, DC

M.C. Dean, Inc•Washington, DC

85d•$104,240 - $156,360•Onsite

About The Position

This position plays a key role in supporting the design, implementation, and sustainment of enterprise-level physical security and IT systems. As a Security Systems Engineer 3 you will work closely with the Design/Install and Operations & Maintenance (O&M) teams to install, configure, test, and maintain systems, provide technical support, and ensure compliance with ICD 705 and other government security standards. This role requires strong technical problem-solving skills, hands-on system integration experience, and the ability to lead tasks independently while collaborating across multidisciplinary teams. Essential responsibilities and activities include but are not limited to: Diagnose and remediate complex systems availability, performance, and information assurance issues in a dynamic, always-on, mission critical environment. Assist with the analysis, evaluation, engineering, and implementation of system improvements, automation, optimization, and deployments. Document designs, and changes to infrastructure environments including physical/logical drawings, engineering design plans, implementation plans, transition plans, test plans, failover plans, and standard operating procedures/playbooks. Perform security updates to hardware and software to ensure the security posture across all systems implemented and managed. Research, prototype, and develop emerging technologies by working closely with industry partners and OEMs to implement the latest and best-in-bread capabilities to meet the customers’ emerging needs.

Requirements

Applicants selected will be subject to a government security investigation and must meet eligibility requirements, including U.S. Citizenship, for access to classified information; ACTIVE SECRET Clearance with the ability to obtain a TS/SCI is REQUIRED
Computer Science, Systems Engineering, Electrical Engineering, Mechanical, or a Related Engineering Discipline or Information Technology degree.
Master’s Degree and 3+ Years of experience or Bachelor’s Degree and 5+ Years of experience
Strong engineering & administration experience with most of the following core platforms and services: Access Control Systems such as CCURE 9000 or Lenel OnGuard.
Video Management Systems such as Milestone XProtect or Genetec.
Perimeter Intrusion Detection Systems such as Senstar and Southwest Microwave.
Other Electronic Security Systems such as Zenitel, Gatekeeper, HID, CertiPath, or D3.
Hypervisors such as everRun, VMware ESXi and vSphere.
Microsoft Windows Server 2016-2025 Deployment and Administration.
Microsoft Windows 11 Deployment and Administration.
Microsoft Windows Server Features such as: DNS, DFS, DHCP and KMS
Active Directory and defining, implementing, and maintaining Group Policy.
Data center networking fundamentals (experience with software defined data center networks a plus.
Hyperconverged storage fundamentals.
Experience developing, implementing, and maintaining highly secure and reliable solutions that meet all organizational Cybersecurity and Information Assurance requirements.
Experience performing security scans, performing system updates, and applying security configurations, e.g., DISA STIG/SRGs to system hardware and software.
Experience with Data Center Automation and Infrastructure as a Service (IaaS), API management, scripting languages including PowerShell, Python, JSON, Bash, etc.
Strong Oral, Written and Presentation Skills with the ability and experience communicating directly with executive leadership.
Demonstrated background working with multidisciplinary teams.
Demonstrated time management and organization skills to meet deadlines and quality objectives.

Nice To Haves

Strong MS Excel, Word, PowerPoint, and Visio Skills is a plus.
Experience designing, deploying, and maintaining SQL Database Infrastructure such as Microsoft SQL Server.
Experience engineering and implementing platforms and services in a software-defined network environment.
Experience with Enterprise Deployment Solutions such as SCCM/MECM, Manage Engine, PDQ, etc.
Vendor certifications for any of the previously mentioned platforms and services.

Responsibilities

Diagnose and remediate complex systems availability, performance, and information assurance issues in a dynamic, always-on, mission critical environment.
Assist with the analysis, evaluation, engineering, and implementation of system improvements, automation, optimization, and deployments.
Document designs, and changes to infrastructure environments including physical/logical drawings, engineering design plans, implementation plans, transition plans, test plans, failover plans, and standard operating procedures/playbooks.
Perform security updates to hardware and software to ensure the security posture across all systems implemented and managed.
Research, prototype, and develop emerging technologies by working closely with industry partners and OEMs to implement the latest and best-in-bread capabilities to meet the customers’ emerging needs.