Senior Systems Administrator

Koniag Government Services•Fort Belvoir, VA

10d•Onsite

About The Position

Koniag IT Systems, LLC, a Koniag Government Services company, is seeking a Senior Systems Administrator to support a Federal defense customer. The role provides senior technical leadership for secure enterprise systems administration, virtual infrastructure, identity management, storage, and hosted mission applications. The administrator resolves complex availability, security, and recovery issues, guides other administrators, and coordinates with network and cybersecurity teams. The position supports secure and reliable enterprise technology services at Government facilities and is primarily on-site at Fort Belvoir, Virginia. Work assignments depend on customer mission needs and applicable access requirements. This is for a future new business opportunity. The position is 100% on-site at a U.S. Army facility at Fort Belvoir. Work is performed during daytime coverage schedules, with after-hours response for critical hosted services, data center incidents, or service restoration when required.

Requirements

Advanced enterprise Windows server, directory services, virtualization, and incident-resolution capability.
Experience enforcing configuration baselines, security patches, and controlled administrative changes.
Ability to perform advanced systems engineering independently and guide less experienced administrators.
Proven ability to diagnose and resolve complex enterprise infrastructure failures independently.
U.S. citizenship.
A final Top Secret clearance based on a Tier 5 investigation, ICD 704 SCI eligibility, and appropriate SCI indoctrination by the start of performance, as applicable to assigned duties and DD Form 254.
Advanced Windows and VMware administration.
Identity and storage engineering.
Security hardening, recovery, and major-incident response.
Ability to document Government-support work accurately and protect controlled or classified information under applicable policies.

Nice To Haves

Experience with VMware, Microsoft endpoint infrastructure, enterprise SAN/storage, and Rubrik/NetApp products.
Experience with DoD data centers and ATO/RMF sustainment.
Industry certification relevant to Windows Server, VMware, or enterprise infrastructure.

Responsibilities

Lead administration and sustainment of enterprise Windows server, identity, virtualization, and data center services.
Engineer and troubleshoot VMware/ESX virtual infrastructures, including resource utilization, failover, and availability.
Administer Active Directory organizational units, account rights, DNS, TCP/IP, and directory-dependent services.
Lead secure patching and remediation against DISA STIGs, vulnerabilities, and change-control baselines.
Oversee storage and backup services and data recovery for critical hosted workloads.
Analyze performance and major incidents across unclassified and classified systems within authorized facilities.
Prepare architecture diagrams, configuration records, troubleshooting procedures, and RMF technical evidence.
Coordinate service changes and restoration with Government network, security, and customer teams.
Plan and validate major changes to enterprise server, storage, and virtualization infrastructure.
Troubleshoot cross-platform service failures using monitoring, logs, capacity analysis, and root-cause techniques.
Improve disaster recovery readiness, technical operating procedures, and secure configuration consistency.
Guide less experienced administrators and perform advanced systems engineering independently.
Document Government-support work accurately and protect controlled or classified information under applicable policies.