System Administrator 4 - Chantilly, VA

M.C. Dean, Inc.

Chantilly (VA)

On-site

USD 125,000 - 172,000

Full time

14 days+

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Benefits offered by this job

Competitive salary
Medical insurance
Dental insurance
Vision insurance
Life insurance
Disability insurance
Paid time off
Tuition reimbursement
401k plan
Military pay offset
Paid maternity leave

Job summary

M.C. Dean, Inc. is seeking a System Administrator 4 to support SES security and IT infrastructure in the Washington, D.C. area onsite. You will monitor, maintain, and troubleshoot physical access control, CCTV, PSIM, and IT systems, providing Tier 2 escalation support and status updates to management.

The role requires Top Secret with SCI clearance eligibility, and strong experience with Windows AD, patching, and virtualization. Travel and flexible shifts are expected to meet mission needs.

Qualifications

  • Bachelor's Degree or higher with extensive IT experience.
  • 7+ years progressive experience as a system administrator.
  • Experience with Windows patching and vulnerability remediation.
  • Strong AD hierarchy knowledge and implementation.
  • Ability to work onsite; travel as needed.

Responsibilities

  • Monitor, maintain, and test security systems and IT infrastructure.
  • Provide Tier 2 escalation support and status to management.
  • Perform daily Active Directory management and log reviews.
  • Configure virtual environments and VDI platforms.
  • Implement STIGs and IA standards on Windows systems.
  • Create technical SOPs and train users as needed.

Skills

Windows administration
Active Directory
Troubleshooting
Vulnerability remediation
Team leadership

Education

Bachelor's Degree
Associates Degree
HS Diploma

Tools

VMware
Hypervisor
Citrix Xen Desktop
ACAS
HBSS
eMASS

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 System Administrator 4 to join our Security and Electronic Systems (SES) business Unit. As part of (SES) Strategic Business Unit you will be part of a dynamic team responsible for 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
What you’ll do

In this role you will be working as part of a team to monitor, maintain, and test Physical Access Control, CCTV, PSIM and other electronic security systems and support implementation, troubleshooting and maintenance of Information Technology (IT) systems in support of the endpoint devices. The position provides Tier 2 (Escalation) problem identification, diagnosis and resolution of problems and supports the escalation and communication of status to agency management and internal customers.

This position requires onsite support at a single work location in the Washington D.C. area. Candidates must be flexible in schedule, have the ability to travel, and be able to communicate professionally with customers and coworkers. Punctuality, attendance, a willingness to learn, and an ability to work well with others are key to success in this role.

Main responsibilities include but are not limited to:

  • Manage physical security system support to meet service level agreements.
  • Configure and manage Windows operating systems and install/load operating system software.
  • Perform desktop hardware and operating system set-up, imaging software loading, and antivirus updates.
  • Analyze security system infrastructure performance and recommend improvements.
  • Troubleshoot, maintain integrity and configure components along with implementing operating systems enhancements to improve reliability and performance.
  • Provide detailed analysis and feedback to agency management and internal customers for escalated tickets.
  • Perform IAVA updates and patching to ensure compliance with Information Assurance (IA) standards.
  • Apply Security Technical Implementation Guides (STIGs) to Windows based operating systems (servers and workstations).
  • Implement and maintain sophisticated enterprise Windows Active Directory Architectures.
  • Perform daily operations to include Active Directory management, monitoring and reviewing system logs.
  • Configure and maintain virtual hypervisors to include VMware and Hypervisor.
  • Deploy, configure, and maintain Virtual Desktop Infrastructure (VDI) platforms to include Citrix Xen Desktop.
  • Install, configure, and maintain 3rd party applications.
  • Install, configure and maintain highly available SQL database Engines.
  • Deploy and maintain storage platforms similar to Dell EqualLogic and Dell Powervault.
  • Analyze requirements of future deployments and make recommendations for IT infrastructure including all hardware and software required fulfill those requirements.
  • Perform root cause analysis on significant issues across all tiers of support.
  • Perform preventive maintenance actions including system back-ups, error log reviews, database size analysis, and integrity checks.
  • Develop new system and application implementation plans to include testing procedures and ensuring operational reliability.
  • Stay current with technological developments and make recommendations for ways to take advantage of new and emerging technology.
  • Create technical documentation such as standard operating procedures (SOP) and as builds for both technical and non-technical audiences.
  • Train system users and other system support personnel as needed.
  • Perform all duties with minimal direct supervision.
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 Top Secret w/ SCI with the ability to obtain a polygraph is REQUIRED.

Key Requirements
  • Education:
    • Bachelor's Degree and 7+ Years of progressive experience or
    • Associates Degree and 10+ Years of progressive experience or
    • HS Diploma or Equivalent and 12+ Years of progressive experience
  • Requires system administrator experience in performing triage on system problems, resolving the system problems, analyzing system data to prevent problems, implementing new workstations, and system extensions.
  • Requires 2 + years of experience programming/administrating Physical Access Control Systems.
  • Demonstrated previous experience effectively managing small teams.
  • Demonstrated understanding of Windows patching and vulnerability remediation.
  • Demonstrated advanced knowledge of Windows active directory hierarchy and implementation.
  • Basic knowledge of large-scale networking, VLANS and routing.
  • Requires reliable attendance at customer site during work hours required by customer.
  • Requires the ability to work flexible shifts that include nights, weekends and holidays as needed.
  • Requires minimum of Security + Certification, CASP, or CISSP certification.
  • Demonstrated background working with multidisciplinary teams.Demonstrated time management and organization skills to meet deadlines and quality objectives.
  • Proficient in MS Excel, Word, Visio, and PowerPoint.
Preferred Experience
  • Proficiency with ACAS and HBSS and mitigation strategies
  • Assessment, mitgation, and closure of network vulnerabilities and vulnerability management eMASS
  • Applying STIGs to servers, databases, applications, and other hardware Security Readiness Review (SRR) Tools (scripts and ACAS)
  • Excellent understanding of the DoD RMF lifecycle and NIST 800-53 controls implementation
  • Awareness of NIST Special Publication 800-82, Guide to Industrial Control Systems (ICS) Security and UFC 4-010-06 Unified Facilities Criteria (UFC) Cybersecurity of Facility
Travel
  • Up to 10% annual, CONUS and OCONUS locations.
What we offer
  • A collaborative team inspired by the way engineering and innovation enhance customer outcomes, improve lives, and change the world for the better. We are driven by our core values of agility, expertise, and trust.
  • An opportunity to lead and build a business with the support of an industry-leading firm that has been in business for 75 years.
  • Investment in your skills and expertise through a combination of professional and technical training programs, including leadership training and tuition reimbursement.
  • Open and transparent communication with senior leadership as well as local office management.
We offer an excellent benefits package including
  • A competitive salary
  • Medical, dental, vision, life, and disability insurance
  • Paid time off
  • Tuition reimbursement
  • 401k Retirement Plan
  • Military Reserve pay offset
  • Paid maternity leave
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 $125,120.00 - USD $172,040.00 /Yr.

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