System Security Administrator - Sr Principal (w/ active TS)
Location: Arlington, Virginia, United States
Company: Critical Solutions
Job Type: Full-time
Posted: Aug 30, 2025
Application deadline: Nov 8, 2025
Source: ZipRecruiter
System Security Administrator - Sr Principal (w/ active TS)
Location: Arlington, VA
Clearance: TS/SCI
Schedule: TBD
Full-time
JOB DESCRIPTION
Critical Solutions is seeking an experienced Systems Security Administrator to support our federal customer in Arlington, VA.
PRIMARY ROLES AND RESPONSIBILITIES:
- Perform domain migrations, both internal and external to the customer environment, to include Active Directory, file services, print services, DHCP, and other commodity IT services.
- Resolve a wide range of system issues including troubleshooting software and hardware, diagnosis of network issues, and addressing trouble tickets and service tasks across all tiered levels.
- Assist with achieving optimum performance and availability standards through implementing appropriate technical solutions.
- Complete the day-to-day tasks associated with system administration in the DES Compute Environment.
- Provide support for implementation, troubleshooting, and maintenance of IT systems.
- Provide on call 24/7 support to the current operations team when troubleshooting/resolving incidents with enterprise systems.
- Provide escalation support to the NOC/monitoring team when troubleshooting issues with enterprise systems.
- Manage IT system infrastructure and continuously update associated process and/or procedural documentation.
- Work within the DevSecOps methodology to plan and support implementation of new technologies.
- Prepare recommendations for resolutions to NetOps challenges based on monitoring results, tools analysis, and/or forensics.
- Work with other service teams to resolve enterprise incidents as part of the DES Operations Problem Solving Team.
- Work with the monitoring team to address issues that will impact system availability.
- Update systems by implementing and maintaining security controls.
BASIC QUALIFICATIONS:
- Must possess an active Top-Secret Clearance w/ SCI eligibility.
- Bachelor's degree in Computer Science, Information Technology, or related field and 12+ years of relevant experience
- UNIX, Windows, and/or Storage administration experience.
- Experience with trouble reporting and tracking systems such as BMC REMEDY and ServiceNow.
- Ability to lift/move/carry equipment when necessary (max forty pounds).
- Experience in managing, troubleshooting, and maintaining Windows Servers.
- Strong experience managing Windows Active Directory, virtual servers, VMware, and Azure including support of AD migration of accounts and objects.
- Experience with vulnerability scanning solutions.
- Familiarity with the DOD Information Assurance Vulnerability Management program.
- Familiarity with MECM, AZURE, Ansible, Antivirus and security deployment tools.
- Experience with on-call rotation schedule for incident respond and escalations.
- DOD 8570 IAT II Certification (Sec+ CE or equivalent).
- Expertise in troubleshooting Windows Operating Systems (Windows 10/11 and Server 2019), Microsoft Office 365, Active Directory, network issues, print logic, IIS, VMware, and Azure.
- Strong scripting and PowerShell skills.
- Experience building, configuring, and hardening Windows servers.
- Strong VMware experience.
- Experience using ServiceNow (or similar tool) to document incidents and service requests.
- Advanced experience with Active Directory management and administration.
ADDITIONAL INFORMATION:
This position is contingent on contract award.
Clearance Requirement: Possess an active DoD Top Secret Clearance. In addition, selected candidate must undergo background investigation (BI) and finger printing by the federal agency and successfully pass the preceding to qualify for the position. US CITIZENSHIP IS REQUIRED.
CRITICAL SOLUTIONS PAY AND BENEFITS:
Salary range $- $. The salary range for this position represent the typical salary range for this job level and this does not guarantee a specific salary. Compensation is based upon multiple factors such as responsibilities of the job, education, experience, knowledge, skills, certifications, and other requirements.
BENEFIT SNAPSHOT: 100% premium coverage for Medical, Dental, Vision, and Life Insurance, Supplemental Insurance, 401K matching, Flexible Time Off (PTO/Holidays), Higher Education/Training Reimbursement, and more.
Job Posted by ApplicantPro
More Jobs Like This
Cake Decorator - Part Time
Longo's
Posted: Aug 31, 2025
Description We are looking for a Cake Decorator - Part Time who is passionate about food and enjoys working in a fast paced, team environment! Do you have outstanding customer service skills? Are you passionate about the food industry? If so, come join our growing team! Position: Cake Decorator - Part Time What you’ll do: - Provide exceptional service to our customers - Stock, merchandise and create displays - Product preparation - Maintain product quality by date checks and product rotation - Follow Food, Health and Workplace Safety standards What we are looking for: - Ability to
Health Care Aide (1.00 FTE)
Golden Life Management
Posted: Aug 31, 2025
It's an amazing time to join Golden Life as we continue to expand our seniors housing, care, and services within western Canada. We’re looking for qualified, temporary, full-time (1.00 FTE) Health Care Aide to join our Nursing Care team at Columbia Garden Village in Invermere, BC. If you're a qualified Health Care Aide, and you are a strong team player, then we’d like to hear from you! The successful candidate will have related experience and a passion for providing high quality care and support for seniors. We're looking for someone who: • Respect and promote the dignity, choices and indiv
Labourer Driver
1-800-Got-Junk?
Posted: Aug 31, 2025
APPLY TODAY & START AS SOON AS THIS WEEK! 1-800-GOT-JUNK? is growing and looking for positive, physically fit people to join our Truck Teams in Edmonton. We’re the World’s Largest Junk Removal Service, known for our professional, friendly team members and clean, shiny blue trucks. Truck Team Member – General Labour / Customer Service / Driver • Hiring Immediately for Full-Time, Part-Time, Weekends • Location: Office based in SE Edmonton • Pay: $16/hour + tips, bonuses and other incentives (avg of $19-$21/hr). Performance-based pay increases & promotions are available for great people that gr
Environmental Services Worker - (218320)
Island Health
Posted: Aug 31, 2025
Description In accordance with the Vision, Purpose, and Values, and strategic direction of the Vancouver Island Health Authority (Island Health), patient and staff safety is a priority and a responsibility shared by everyone; as such, the requirement to continuously improve quality and safety is inherent in all aspects of this position. Using a variety of specialized equipment, tools and machines, performs light and heavy cleaning duties, such as dusting, vacuuming, shampooing, washing, mopping, stripping, polishing and wiping; makes beds and empties garbage in accordance with established po
Content Research Specialist
beBeeSearch
Posted: Aug 31, 2025
Media Search Analyst Job DescriptionAs a Media Search Analyst, you will have the opportunity to work with an innovative web-based evaluation tool, conducting comprehensive assessments across diverse task categories, including music, video, books, podcasts, and home pod evaluations in various media domains.Our team empowers you to set your own schedule, allowing for flexibility and autonomy in your work. You will analyze and evaluate search outcomes for App Store Content, conducting research using online tools to assess query accuracy and intent.With no previous professional experience required
Accounting Analyst
Sleep Country
Posted: Aug 30, 2025
In this role you will: • Serve as a key member of the Accounting Shared Services team, supporting financial accuracy and operational efficiency. • Perform daily audits of store transactions, analyze and resolve out-of-balance issues, and complete timely reconciliations and correcting entries. • Coordinate with other teams to ensure transactions are reflected accurately in the financial systems. • Escalate issues to the proper departments and follow through to resolution. • Take the lead reviewing and assessing existing accounting operational processes. • Analyze root causes of issues and recom
Operations Associate
Crate & Barrel
Posted: Aug 30, 2025
CB2 is transforming the perception of home design for today's modern consumer. Born out of Crate and Barrel, CB2 is committed to high-quality, sophisticated design at an approachable price. Located in downtown Chicago, CB2 offers an engaging, collaborative work environment. If you're creative, team spirited and have a passion for modern design, then join the team as a Operations Associate. A day in the life as a Operation Associate... - Assist the team with ensuring product and displays on the sales floor are stocked appropriately and available for customers to purchase - Perform duties associ
EOI - Medical Secretary
KCHC
Posted: Aug 30, 2025
Title: Medical Secretary Reports to: Primary Care, Manager Position Type: Permanent: Full-Time Permanent 1.0 FTE (35 hours/week) Salary: $21.74 - $25.58 per hour Vacancy Status: New Vacancy Location: Midtown Kingston Health Home Position Summary Working in close partnership with a multi-disciplinary team, the Medical Secretary ensures the smooth and efficient operation of the health care team by directing clients and participants to appropriate services and by maintaining all systems that support health care services. Key Responsibilities Client Service • Creates a welcoming atmospher