Senior OT/ICS Systems Administrator & Cybersecurity Lead
Unofficial M.C. Dean
M.C. Dean is seeking a senior Systems Administrator and technical lead to oversee secure OT/ICS infrastructure from design to commissioning. The role involves lifecycle management, cyber hardening, and cross-functional coordination with engineering, cybersecurity, and project teams. Ideal candidates will have extensive VMware/Hyper-V, Windows Server, AD, and RMF experience, along with strong leadership and communication skills. Travel up to 30% may be required. #J-18808-Ljbffr Unofficial M.C. Dean
- M.C. Dean is seeking a Senior Systems Administrator to lead secure OT/ICS infrastructure initiatives. You will own the solution lifecycle from bidding and design through implementation, cybersecurity hardening, testing, commissioning, and customer handoff while coordinating...Senior
- ...Job Description Job Description We are seeking an experienced and highly motivated Senior Systems Administrator to lead Independent Verification and Validation (IV&V) efforts for our network systems infrastructure projects. In this critical role, you will be responsible...Senior
- ...Apogee Global RMS is seeking a Senior Cybersecurity Engineer / Offensive Security Lead to support high‑visibility federal and IC programs. This role is designed for operators who bring hands‑on offensive tradecraft, current certifications, and recent red‑team experience...SeniorFull time
$120.34k - $180.5k
...NTC OVERVIEW: We are seeking a Lead Systems Administrator to join our team. Working at NT Concepts means that you are part of an innovative... ...Ensure ACAS findings are remediated; STIGs applied; and cybersecurity compliance is maintained in accordance with DoD and Navy...SuggestedFull timeContract workWork at officeLocal areaRemote workRelocationFlexible hours$105k - $155k
...resides with Warfare Systems (WS), a business group... ...Our capabilities in cybersecurity, network architecture... ...Mission Technologies is leading the next evolution of... ...opportunity. Systems Administrator 3: $105,000 - $145,00... ...will serve as a senior technical resource responsible...SeniorFull timeWork experience placementLocal areaWorldwide- RealmOne seeks a Systems Administrator Lead to support a key government program, focusing on design, deployment and maintenance of DoD IT systems. You will troubleshoot complex systems, optimize operations, and provide clear communications to management and internal customers...Senior
- ...Solutions is looking for an experienced Senior Analyst to support a contract at Fort... ...solutions that ensure compliance with DoD Cybersecurity Policy. The ideal candidate will have... ...and managing the security of Information Systems. OTS values diversity and is an equal...SeniorContract work
- Kaimetrix is seeking a System Administrator - Level IV to lead IT infrastructure management in secure environments. This role requires at least 10 years... ...IT or related fields. Candidates should have advanced cybersecurity certifications and the ability to manage complex...Senior
$7.5k
...then come join us! Job Description: We are looking for a Systems Administrator Lead to join our program supporting a key government customer.... ...'s degree in Information Technology, Computer Science, Cybersecurity, Computer Engineering, or Information Systems and three (...Work experience placementImmediate startFlexible hours- Nationwide IT Services is seeking an experienced System Administrator to support a Department of Defense customer at Fort Belvoir, VA. This... ...technical support while collaborating with network engineers, cybersecurity personnel, #J-18808-Ljbffr Nationwide IT ServicesSenior
- The Senior Systems Administrator (Okta) is responsible for the stable operation, administration, and maintenance of the DLA Okta environments... ...multiple tasks simultaneously. Familiarity with DLA/DoD cybersecurity policies, RMF, and federal compliance requirements....SeniorLocal area
$120k - $200k
...drive our programs forward. Scout is seeking a skilled Senior IT Systems Administrator to lead the design, implementation, and management of our... ...controls aligned with NIST, CMMC, and other applicable cybersecurity frameworks Administer and maintain company hardware...SeniorPermanent employmentRemote workWork from homeRelocationFlexible hours- The company is looking for an amazingly talented Senior Systems Administrator to join our team! In this role you will get to manage Windows Active... ...networks and systems in accordance with DoD cybersecurity policies, procedures, and best practices. Active TS/SCI...SeniorFlexible hours
- Booz Allen Hamilton is seeking a Systems Administrator and Security Analyst in Fort Belvoir, VA. In this role, you will improve technology... ...systems in hybrid environments. You will also apply your cybersecurity skills to enhance compliance and security protocols. The position...Senior
$104.24k - $130.3k
...audiovisual, and IT systems. Headquarters in Tysons... ..., engineering, and cybersecurity industries. Responsibilities... ...you will serve as a senior systems administrator and technical lead for secure Operational Technology (OT) and Industrial Control System (ICS) infrastructure. You...For subcontractorRemote workFlexible hoursNight shift$150k - $175k
OverviewAMERICAN SYSTEMS, a 100% employee-owned federal contracting company, is seeking a Lead Systems Administrator with strong Linux CLI and Windows administration experience to... ...multiple datacenters, partnering with cybersecurity and engineering teams, and providing Tier...Local areaRemote workRelocation package$77.6k - $176k
DevOps Engineer and System Administrator, SeniorThe Opportunity:Are you looking for an opportunity to leverage your DevOps and system administration... ...launching capability for Enterprise-web based systems in cybersecurity automation. You’ll have the opportunity to work on...SeniorFull timeContract workPart timeWork at officeLocal areaRemote work- Empower AI, based in Arlington, Virginia, seeks a Senior Systems Administrator (Lead) to oversee the IT Support Team and ensure operational excellence. The role entails managing IT support, leading security implementations, and maintaining complex systems for military...Senior
$96.12k - $182.4k
...POSITION SPECIFICSWe are searching for a Systems Administrator to join the Reston, VA location of the... ...as IT Platform Administrator (ARL) - Senior Professional, this position requires: Bachelor... ...of the Navy, the Intel Community (IC), and other federal government...SeniorFull timeFor contractorsWork experience placementWork at officeImmediate startRemote work- A leading technology company is seeking a Senior PeopleSoft 9.2 Upgrade Expert System Admin in McLean, VA. The role involves executing all activities to perform technical upgrades with extensive experience in PeopleSoft 9.2. Ideal candidates should have a proven track record...Senior
- A federal technical services provider is seeking a Senior Systems Administrator to support a large Federal agency. The ideal candidate will have extensive Relativity experience and the ability to lead teams in a dynamic IT environment. Key responsibilities include managing...Senior
- A cybersecurity solutions firm in Northern Virginia is looking for a Dissemination Analyst Team Lead. This role requires an active Top Secret/SCI clearance and at least 4 years of experience in intelligence dissemination operations. Responsibilities include leading dissemination...Senior
- Leidos is seeking a GCCS-J Systems Administrator in the AFNCR IT Services program. You will lead a three-person team, oversee GCCS-J lifecycle operations, and direct... ...preferred. Travel to CONUS and coordination with senior leadership will be part of the role, including ADVON...Senior
- A government services provider is seeking a Senior Systems Administrator in Fairfax, Virginia. The successful candidate will manage Relativity databases... ...experience, strong supervisory skills, and the ability to lead technical teams. Candidates should possess significant...Senior
$131.3k - $237.35k
Leidos is seeking a Senior ICS/SCADA & Industrial Controls Engineer to join our team in Reston... ..., as well as the interoperability of systems managed through Industrial Control... ...chillers, UPS systems, and power monitoring.Cybersecurity and/or penetration testing experience....SeniorFull timeFor contractors- ...Technica Corporation is seeking a Senior Intelligence Solutions Integrator (Team Lead) to support INSCOM Data Capabilities... ...sharing or intelligence data/system interoperability.Delivering professional... ...discipline working in the DoD or IC within the last 2 years.4 years...SeniorContract workRemote work
$106.68k - $246.98k
...opportunity resides with Warfare Systems (WS), a business group... ...threats. Our capabilities in cybersecurity, network architecture, reverse... ..., and assist operations leads in creating deployment plans... ...logistics experts; and business administration professionals.Recognized as...Full timeWork experience placementLocal areaWorldwide- Senior Systems Administrator (Lead) Job ID: 2026-9115 Overview Empower AI is AI for government. Empower AI gives federal agency leaders the tools to elevate the potential of their workforce with a direct path for meaningful transformation. Headquartered in Reston, VA,...SeniorContract workFor contractorsWork at office
- Interactive Process Technology LLC is seeking a Senior Microsoft System Administrator in Fort Belvoir, VA. In this role, you will handle the administration and maintenance of Windows-based servers, ensuring compliance with security standards and best practices. The ideal...Senior
- TechFlow, Inc. seeks a Senior Systems Administrator to maintain and optimize the enterprise IT infrastructure for a critical DOD program, ensuring... ..., and high availability. You will collaborate with cybersecurity, engineers, and government stakeholders to support mission...Senior
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