IT Systems Engineer 3 - Falls Church, VA

M.C. Dean, Inc.; Falls Church, Northern (VA, KY); Hybrid; USD 104,000 - 143,000; Full time

Job summary

M.C. Dean, Inc. in Falls Church, VA is seeking a System Engineer 3 to support the SES unit, focusing on design, deployment, and cybersecurity of complex infrastructure.

Ideal candidates have active Secret clearance, US citizenship, and hands-on experience with VMware ESXi, Windows Server, MECM, and AD, plus scripting skills in PowerShell or Python. This is a full-time on-site role supporting critical national security projects.

Qualifications

• U.S. Citizenship and active Secret Clearance required.
• Bachelor’s degree in CS/EE/IT or related field.
• Experience with virtual infrastructure technologies and IT security.

Responsibilities

• Gather requirements, architect solutions, and communicate with stakeholders.
• Analyze, deploy, and optimize system infrastructure and security.
• Develop designs and architectural changes for physical/logical environments.
• Apply security updates and ensure posture across systems.

Skills

Secret clearance

U.S. citizenship

Analytical thinking

Team collaboration

Communications

Education

Bachelor's degree in CS/EE/IT

Tools

VMware ESXi / vSphere

Windows Server

MECM

Active Directory

DNS/DHCP

PowerShell

Python

Job description

Overview

About M.C. Dean

M.C. Dean is Building Intelligence. We design, build, operate, and maintain cyber-physical solutions for the nation’s most mission-critical facilities, secure environments, complex infrastructure, and global enterprises. With over 9,000 employees, our capabilities span electrical, electronic security, telecommunications, life safety, automation and controls, audiovisual, and IT systems. Headquarters in Tysons, Virginia, M.C. Dean delivers resilient, secure, and innovative power and technology solutions through engineering expertise and smart systems integration.

Why Join Us

Our people are passionate about engineering innovation that improves lives and drives impactful change. Guided by our core values-agility, expertise, and trust we foster a collaborative and forward-thinking work environment. At M.C. Dean, we are committed to building the next generation of technical leaders in electrical, engineering, and cybersecurity industries.

We are seeking a IT-orientedSystem Engineer 3to join ourSecurity and Electronic Systems (SES)business Unit. As part of(SES)Strategic Business Unit you will be part of a dynamic team responsible for the design, implementation, operations & maintenance, and cybersecurity for large complex resilient hardware and virtualized infrastructure to ensure implemented solutions meet stakeholder needs, standards, and performance requirements.

Responsibilities

Position Summary:

• Work closely with stakeholders to gather technical requirements, architect solutions, execute on deliverables, and communicate solutions to the entire technical program team and to end-customer stakeholders.
• Conduct analysis, evaluation, engineering, and implementation of system improvements, automation, optimization, and deployments.
• Develop designs and architectural changes to infrastructure environments including physical/logical drawings, engineering design plans, implementation plans, transition plans, test plans, and failover plans.
• Perform security updates to hardware and software to ensure the security posture across all systems implemented and managed.

Qualifications

Clearance/Citizen Type: 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 is required.

Work Type: Full-time

Position / Candidate Requirements:

• U.S. Citizen with adjudicated U.S. Secret Clearance.
• Bachelors Degree and 5+ years of progressive experience. Computer Science, Electrical Engineering, Mechanical, or a Related Engineering/IT Discipline.
• Some experience eliciting requirements, conducting research, designing, testing, and implementing hardware and software solutions for virtual infrastructure technologies.
• Engineering experience with some of the following core platforms and services:
  • VMware ESXi and vSphere.
  • Microsoft Windows Server Deployment and Administration.
  • Microsoft Windows 11 Deployment and Administration.
  • DNS, DFS, and DHCP.
  • Windows Server Update Services (WSUS), Key Management Service (KMS)
  • Active Directory and defining, implementing, and maintaining Group Policy.
  • Microsoft Endpoint Configuration Manager (MECM).
• Experience performing security scans, performing system updates, and applying security configurations, e.g., DISA STIG/SRGs to system hardware and software.
• Some experience virtualizing enterprise applications (Active Directory, MS SQL, RHEL, MS SharePoint, etc.).
• Some experience with API management, scripting languages including PowerShell, Python, JSON, Bash, etc.
• Meet DoD 8570 IAT Level-II requirements.
• Demonstrated background working with multidisciplinary teams.
• Demonstrated time management and organization skills to meet deadlines and quality objectives.
• Strong MS Excel, Word, PowerPoint, and Visio Skills.

Desired / Advantageous Qualifications and Experience:

• Experience administering OCSP (e.g. Axway Validation Authority, Microsoft OCSP Responder).
• Experience troubleshooting and optimizing the Trellix security product suite (Endpoint Security, DLP, HIPS, etc.).
• Experience designing and deploying SQL Database Infrastructure such as Microsoft SQL Server.
• Experience engineering and implementing platforms and services in a software-defined network environment.
• Vendor certifications, VMware, Cisco, Microsoft, NetApp, etc.

Abilities:

• Exposure to computer screens for an extended period of time.
• Sitting for extended periods of time.
• Reach by extending hands or arms in any direction.
• Have finger dexterity in order to manipulate objects with fingers rather than whole hands or arms, for example, using a keyboard.
• Listen to and understand information and ideas presented through spoken words and sentences.
• Communicate information and ideas in speaking so others will understand.
• Read and understand information and ideas presented in writing.
• Apply general rules to specific problems to produce answers that make sense.
• Identify and understand the speech of another person.

Pay Range

USD $104,000.00 - USD $143,000.00 /Yr.