A

Arcfield

Defense systems engineering, cyber and missiles

Information Technology Systems Engineer/Administrator

System AdministrationConfirmed live in the last 24 hours
Full-timeWestfield, VA, USA$122.8k - $213.5kIn-person

About the Job

Requirements

  • Must possess and be able to maintain a Top Secret/Sensitive Compartmented Information clearance with polygraph.
  • U.S. citizenship is required.
  • Requires a bachelor's degree and 10–12 years of experience, a master's degree and 8–10 years, a PhD and 5–7 years, an associate's degree and 14 years, or a high-school diploma/GED and 16 years.
  • Requires at least 5 years of experience working in the Intelligence Community and/or Department of War.
  • Requires a degree in Cybersecurity, Information Technology, or Computer Science, or equivalent technical experience.
  • Requires a DoD 8570/8140 IAM/IAT Level II or III certification, such as Security+, CISSP, CISM, or CASP+.
  • Requires experience administering ACAS, Nessus, and Splunk vulnerability and logging scanners.
  • Requires deep operational knowledge of the Risk Management Framework lifecycle and ICD-503 security accreditation procedures.
  • Requires experience designing, provisioning, and maintaining secure, resilient, and scalable C2S infrastructure using the AWS Well-Architected Framework.
  • Requires experience hardening systems using DISA Security Technical Implementation Guides and Center for Internet Security benchmarks.
  • Requires advanced management of Active Directory, especially secure Group Policy Objects.
  • Requires knowledge of PowerShell or Python for automating configuration baseline checks and patch verification.
  • Requires working knowledge of networking functions, protocols, and configurations, including configuring and managing C2S networking components such as VPCs, subnets, Route 53, transit gateways, and load balancers.

Responsibilities

  • Provide 100% on-site management of secure server and desktop infrastructure within the classified space.
  • Support development and management of classified Commercial Cloud Services infrastructures across several domains, implementing efficiencies and maintaining high availability.
  • Diagnose and resolve complex infrastructure, server, and network failures; handle specialized system outages and configuration changes, primarily in a cloud environment.
  • Handle limited, escalated desktop or user troubleshooting issues.
  • Implement, monitor, and enforce technical security controls mandated by NIST SP 800-53, the Risk Management Framework, and ICD-503.
  • Administer and synchronize secure on-premises servers with classified cloud environments.
  • Use Microsoft tools to enforce secure baselines, deploy hardened operating system images, and push mandatory security patches to multiple endpoints.
  • Administer RSA authentication tools to enforce multifactor authentication and secure, identity-vetted remote access.
  • Configure and monitor continuous auditing systems such as Splunk to log and review user and system events for compliance verification.
  • Assist with strategic plans for future technical management and configuration.
  • Assist with designing and implementing system changes to maintain security and usability.
  • Conduct routine system scans using mandated automation tools such as Nessus and ACAS, analyze findings, and execute remediation actions.
  • Apply technical and functional solutions across several projects, leveraging capabilities and sharing or seeking knowledge and information across the organization.
  • Optimize and secure classified IT infrastructure supporting customers operating within a Sensitive Compartmented Information Facility, ensuring availability, security, and performance of critical communication, deployment, and authentication platforms.
  • Deliver Tier II/III advanced engineering support, provide limited Tier I troubleshooting, and escalate issues as needed while supporting maintenance of an active Authorization to Operate by aligning systems with Risk Management Framework and ICD-503 compliance standards.

About the Company

Arcfield

Defense systems engineering, cyber and missiles

Arcfield provides mission-focused engineering, defense systems integration, and specialized support across cyber, space, hypersonic, and missile domains. It combines systems engineering, risk assessment, and mission assurance with cybersecurity, space operations, and missile support to protect and enable defense missions. With a 65+ year track record and a large technical workforce across North American offices, it differentiates itself through broad expertise and a long history in cyber, space, hypersonic, and conventional/missile work. Its goal is to protect the nation and its allies by delivering integrated, dependable defense capabilities and mission readiness.

Company size
501-1,000
Company stage
Not listed
Total funding
Not listed
Headquarters
Chantilly, VA
Founded
2021

Recently Posted Jobs

Explore more opportunities at Arcfield

See more jobs