Hiring.Camp

Senior IT Systems Administrator (REQ 339)

Aphysci

·

Jul 8, 2026

Location
Groton CT
Type
Full-time
Department
Administration
Seniority
Senior
Clearance
Required

Description

Overview: 

Applied Physical Sciences (APS), a subsidiary of General Dynamics, is seeking a highly motivated and experienced Senior IT Systems Administrator to join our growing team. In this critical role, you will support and enhance enterprise-level information systems while driving the adoption of new technologies across the organization. 

Job Functions and Responsibilities: 

  • Contribute to IT and cybersecurity compliance initiatives, including NIST 800-171 and CMMC frameworks, by writing/revising policy, implementing processes, and maintaining audit records. 
  • Design, Deploy, implement, and support new technologies for both end users and administrators, across on-prem and cloud environments. 
  • Lead and support IT break/fix escalations, operations, updates, lifecycle refreshes, and add/change activities. 
  • Help manage records labeling and retention efforts. 
  • Manage and remediate vulnerabilities in CUI and higher classification networks to maintain a secure, compliant enterprise environment. 
  • Support cybersecurity monitoring, analysis, and response efforts. 

Required Attributes and Skills: 

  • Professional experience of 7 or more years is desired but may not be required in all circumstances. 
  • A strong track record supporting enterprise IT systems across desktop support, server administration, virtualization, compliance, and cybersecurity operations. 
  • Experience with end-user support, break/fix tasks, and routine IT operations. 
  • Experience evaluating and implementing new systems based on business needs.
  • Familiarity with Microsoft 365 administration and enterprise Windows environments. 
  • Experience supporting IT regulatory compliance programs (e.g., NIST 800-171, CMMC). 
  • Ability to obtain and maintain a DoD Secret security clearance (U.S. citizenship required). 

Preferred Attributes and Skills: 

  • Experience with Microsoft Purview and data governance programs, both designing and implementing them. 
  • SIEM experience and comfort investigating security alerts. 
  • Linux administration capability in an enterprise setting.
  • Experience managing a Microsoft 365 GCC-High tenant.
  • Knowledge of L2/L3 networking. 
  • Familiarity with Tenable.SC or Nessus vulnerability platforms.
  • Strong documentation and communication skills. 
This position is located in the Groton, CT office.  APS, a wholly owned subsidiary of the General Dynamics Corporation, offers competitive salaries, excellent benefits, and comfortable working conditions. Candidates must possess or be able to obtain a DoD security clearance. Please note, obtaining a security clearance is a condition of employment which typically requires US citizenship and a thorough background investigation.    Qualified applicants are invited to submit a resume and application online at www.aphysci.com, fax them to 860-495-1744, Attn: Human Resources, or mail to the company address. Please reference the requisition number and title of the position in the subject line of your submission.   EOE: Vet/Disability   Invitation to Self-Identify In keeping with our commitment to Equal Employment Opportunity (EEO), Applied Physical Sciences invites all applicants to self-identify pre-offer as a protected veteran.   Invitation to Self-Identify as Protected Veteran Online Form     

Skills

LinuxCybersecuritySIEMCompliance

Similar Jobs

30

Senior Specialist - IT Quality and Computerized Systems Validation

Bristolmyerssquibb·Leiden, South Holland

1d ago

Senior IT Systems Engineer

Matillion·Hyderabad, Telangana·Hybrid

2d ago

Senior IT Systems Analyst - Imaging Systems

Ardent Health·Brentwood, Tennessee·Remote

2d ago

Sr. IT Systems Engineer

Carrot·Remote·Remote

4d ago

Senior IT Systems Engineer

Remote Woman·Remote • Canada·Remote

4d ago

IT Senior Systems Engineer

Chase Brexton Health Care·Baltimore, Maryland

4d ago

Senior IT Systems Engineer

Collascrill·St Helier, Jersey·Remote, Hybrid

5d ago

Senior IT Systems Administrator

Collas Crill·Jersey·Remote, Hybrid

5d ago

Senior IT Data Systems Administrator

Diamondfoundry·Zaragoza, Aragon·Onsite

5d ago

IT Systems Administrator Sr

Austintexas·US

6d ago

Senior IT Systems Administrator

Imfusion·Munich, Bavaria·Onsite

6d ago

Sr. IT Systems Administrator I (II)

PJM employees work collaboratively to·Audubon, New Jersey·Remote, Hybrid

6d ago

Senior Labware IT Systems Specialist, QC Applications

Fujifilm·Denmark

1w ago

Senior Systems Engineer - Shared Services Microsoft, IT Infrastructure & Cloud (m/w/d)

synava·Karlsruhe, Baden-Wurttemberg·Hybrid

1w ago

Senior Systems Administrator, IT Applications

Ryan·Manila, National Capital Region·Hybrid

1w ago

Senior Technical Architect, Finance IT Systems

Tencent·Singapore-CapitaSky·Onsite

1w ago

Senior IT Infrastructure, Networking and Systems

Mytra·Brisbane, Queensland·Remote

1w ago

Senior IT Systems Administrator

TwinStream·Bristol, England·Remote, Hybrid, Onsite

1w ago

Senior IT Systems Analyst

Madiffpl·Warsaw, Mazovia·Remote, Hybrid, Onsite

1w ago

Senior IT Systems Engineer

Atomcomputing·Boulder, Colorado·Hybrid

1w ago

Senior IT Project Manager – Laboratory Systems in Pharma

Fusion Consulting·Prague, Czechia·Remote

1w ago

Senior IT Project Manager – Laboratory Systems in Pharma

Fusion Consulting·Warsaw, Mazovia·Remote

1w ago

Senior IT Project Manager – Laboratory Systems in Pharma

Fusion Consulting·Budapest, Hungary·Remote

1w ago

Senior IT Project Manager – Laboratory Systems in Pharma

Fusion Consulting·Lisbon, Portugal·Remote

1w ago

Senior IT Project Manager – Laboratory Systems in Pharma

Fusion Consulting·Barcelona, Catalonia·Remote

1w ago

Member IT Services - Senior IT Business Systems Analyst

Mohawk Medbuy Corporation (MMC)·Canada

1w ago

Senior Systems Analyst (R&D IT – Clinical, Regulatory & Medical Systems)

Tryton Tc Llc·Waltham, Massachusetts·Hybrid

2w ago

Senior IT Systems Engineer

Confirmo·Prague, Czechia·Hybrid

2w ago

919315 IT Application Development - Senior Business Systems Analyst

Klein Tools·Lincolnshire, Illinois

2w ago

919315 IT Application Development - Senior Business Systems Analyst

Klein Tools·Mansfield, Texas

2w ago