Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Senior Systems Administrator

$100k - $115k

Maximus

Job‑Specific Essential Duties and Responsibilities: Design and implement enterprise‑wide patching and upgrade strategies across on‑premises, cloud, and hybrid environments. Architect, automate, and maintain patching and upgrade workflows using scripting, orchestration, and configuration management tools to support large‑scale, repeatable deployments. Lead technical planning, testing, and execution of complex system upgrades, including operating systems, infrastructure platforms, and supporting services. Coordinate patch and upgrade activities through formal change, configuration, and release management processes, including documentation, rollback planning, and post‑deployment validation. Monitor vulnerability sources (e.g., CVEs, KEVs, vendor advisories) and ensure timely remediation. Provide senior‑level technical support and guidance to system administrators, serving as an escalation point for complex patching, upgrade, and configuration issues. Develop and maintain technical documentation, standard operating procedures, and reporting artifacts to support auditability, compliance, and continuous service improvement. Job‑Specific Minimum Requirements: Ability to obtain and maintain a Public Trust is required. An active Public Trust and/or DHS suitability is preferred. Must be a U.S. Citizen without dual citizenship. Enterprise patch and upgrade management across Windows and/or Linux environments. Experience remediating vulnerabilities in accordance with federal security directives. Automation and scripting for patching and configuration management (e.g., PowerShell, Bash, orchestration tools). Change, configuration, and release management in regulated enterprise environments. Systems engineering support for large‑scale infrastructure deployments (on‑prem, cloud, hybrid). Technical documentation and audit‑ready reporting. Bachelor’s degree in Information Technology, Computer Science, Engineering, or a related field. 10+ years of progressive experience in systems engineering and enterprise system administration, with demonstrated focus on patching and upgrade management. Preferred Skills and Qualifications: Experience supporting federal government agencies. Familiarity with enterprise ITSM tools (e.g., ServiceNow) for change and incident tracking. Experience with image development, system hardening, and baseline configuration management. Exposure to cloud platform patching and lifecycle management (Azure and/or AWS). Strong collaboration skills supporting cross‑functional engineering and operations teams. EEO Statement Maximus is an equal opportunity employer. We evaluate qualified applicants without regard to race, color, religion, sex, age, national origin, disability, veteran status, genetic information and other legally protected characteristics. Salary Range $100,000 – $115,000 #J-18808-Ljbffr Maximus

Vacancy posted 16 hours ago
Similar jobs that could be interesting for youBased on the Senior Systems Administrator in Oklahoma City, OK vacancy
  • InDyne Inc is seeking a Site Analyst/System Administrator to ensure the security and functionality of the Upgraded Early Warning Radar systems. The ideal candidate will have a background in computer science with a strong focus on system administration and tech troubleshooting... 
    Senior

    InDyne Inc

    Oklahoma City, OK
    16 hours ago
  • $50 - $58 per hour

    Job Details Job Title: Senior MS Systems Administrator Location: Boston, MA 02210 Pay Rate: $50-58/hr Key Skills Strong customer service experience with a polished, hardworking approach. Front‑facing role; not a back‑end position. Proficiency with MS tools, including... 
    Senior
    Work at office

    Dexian

    Oklahoma City, OK
    3 days ago
  • The Role We are looking for a visionary Senior System Administrator to redefine how identity, devices, and automation intersect. You won’t just manage Okta; you will architect a seamless ecosystem where Workday (already integrated) serves as the heart of our automation,... 
    Senior
    Immediate start

    Zoom Information, Inc.

    Oklahoma City, OK
    1 day ago
  • Overview Position Summary : LCI is seeking dedicated Senior Systems Administrators to support a long-term contract with the US Patent and Trademark Office (USPTO). These roles are critical in maintaining the hardware and software infrastructure that powers the USPTO’s mission... 
    Senior
    Long term contract
    Work at office
    Remote work

    Leader Communications

    Oklahoma City, OK
    16 hours ago
  •  ...***On-Site in OKC Required*** Primary Function: We are seeking a highly skilled, motivated, flexible, and professional Senior Systems Administrator who will play a key role in our technology team. As a Senior Systems Administrator, you will perform system administration... 
    Senior
    Full time
    Work experience placement
    Casual work
    Work at office
    Remote work
    Visa sponsorship
    Monday to Thursday
    Flexible hours

    Long Wave

    Oklahoma City, OK
    3 days ago
  • We are seeking a Senior Systems Administrator to oversee the design, implementation, maintenance, and security of our IT infrastructure. This role is responsible for managing networking, firewalls, servers, virtual machine hosts, user accounts, licenses, and various related... 
    Senior
    Full time
    Night shift

    Alliance Steel OKC

    Oklahoma City, OK
    3 days ago
  • Summary The Senior Systems Administrator is the backbone of ARL’s IT operations, ensuring the smooth functioning of a complex SMB network and environment. This role will be pivotal in providing advanced technical support for the company’s managed IT infrastructure, maintaining... 
    Senior
    Work at office
    Local area
    Monday to Friday
    Shift work
    Weekend work

    ARL Bio Pharma

    Oklahoma City, OK
    2 days ago
  • Maximus is seeking a Journeyman System Administrator in Oklahoma City to support enterprise Patch and Upgrade Management operations. Candidates should have over 7 years of system administration experience, be eligible for a Public Trust, and have expertise in vulnerability... 
    Senior

    Maximus

    Oklahoma City, OK
    16 hours ago
  • A technology services provider is seeking a highly skilled Senior Systems Administrator to support infrastructure administration and automation in Oklahoma City. Candidates should have at least 5 years of experience in system administration across Windows and Linux environments... 
    Senior
    Full time
    Remote work

    Long Wave Inc.

    Oklahoma City, OK
    3 days ago
  • A dynamic health technology organization in Oklahoma City is looking for a Senior Systems Administrator to manage and enhance IT operations. This role involves providing advanced technical support, troubleshooting hardware and software issues, and collaborating with the... 
    Senior

    ARL Bio Pharma

    Oklahoma City, OK
    2 days ago
  • A leading defense technology company in Oklahoma City seeks an IT Systems Administrator to manage security protocols, maintain network servers, and support application needs. This role requires a BS/BA in a technical field and extensive experience in network systems. The... 
    Senior

    Kratos Defense and Security Solutions

    Oklahoma City, OK
    3 days ago
  • An academic institution in Massachusetts is seeking a motivated Storage Systems Administrator to enhance and maintain a hybrid storage infrastructure. The ideal candidate will possess a Bachelor's degree and experience with SAN and NAS systems. Responsibilities include... 
    Senior

    Fertility Providers Alliance

    Oklahoma City, OK
    4 days ago
  • A technology services provider is looking for dedicated Senior Systems Administrators to support a long-term contract with the US Patent and Trademark Office (USPTO). These roles are critical for maintaining the infrastructure that powers the USPTO's mission. The ideal... 
    Senior
    Long term contract
    Work at office

    Leader Communications

    Oklahoma City, OK
    16 hours ago
  • $25.38 per hour

    Contract Administrator - Fuels Marketing The Contract Administrator is responsible for the preparation...  .... Serve as a technical lead and senior escalation point. Performs project management...  .... Full-time +1 Senior ServiceNow Systems Administrator (Boston, MA) Senior ServiceNow... 
    Senior
    Hourly pay
    Ongoing contract
    Permanent employment
    Full time
    Contract work
    Part time
    Work at office

    Boston College Carroll School of Manageme

    Oklahoma City, OK
    1 day ago
  • A consulting corporation is seeking a Principal Consultant specializing in Salesforce to join their growing team in Oklahoma City. The ideal candidate will have over 5 years of technology consulting experience, with a strong focus on Salesforce development and implementation...
    Senior
    Permanent employment
    Full time

    Sonsoft Inc

    Oklahoma City, OK
    1 day ago
  • Responsibilities Own the full network lifecycle — from design through to operations, not just delivery Step into a true SME role with visibility and influence across infrastructure decisions Work hands‑on with modern Cisco technologies, including SD‑WAN transformation...
    Senior

    Jobtailor

    Oklahoma City, OK
    2 days ago
  • Gravity Engineering Services Pvt Ltd. is seeking a highly qualified network/system administrator to design and manage LAN/WAN networks for classified government operations. The ideal candidate must have an active TS/SCI clearance and 5+ years of experience in enterprise... 
    Senior

    Gravity Engineering Services Pvt Ltd.

    Oklahoma City, OK
    16 hours ago
  •  ...seeks a skilled network technician to enhance its energy services. The role includes planning, installing, and maintaining network systems, ensuring security and optimal performance. The ideal candidate has a degree in Computer Science and significant experience in IP networking... 
    Senior

    DEMCO

    Oklahoma City, OK
    2 days ago
  • Diamondback E&P LLC in Oklahoma City is looking for an experienced F5 Administrator to enhance application delivery and security across on-prem and cloud settings. The role involves managing F5 BIG-IP, implementing security policies, and collaborating with multiple teams... 
    Senior

    Diamondback E&P LLC

    Oklahoma City, OK
    16 hours ago
  • A technology solutions provider is looking for a Senior Network and Computer Systems Administrator to support the deployment and maintenance of IT systems. This role involves providing technician-level support for end-users, collaborating on security implementations, and... 
    Senior

    Goldbelt, Inc.

    Oklahoma City, OK
    7 hours ago
  • A defense contracting company is looking for a Senior Network and Computer Systems Administrator to provide technical planning, support, and maintenance of IT systems. Key responsibilities include providing support for end users, ensuring security control implementation... 
    Senior

    CP Marine LLC

    Oklahoma City, OK
    3 days ago
  •  ...operational technology, electronic security surveillance, and support services. Summary We are looking for a Senior Network and Computer Systems Administrator. Responsibilities Assist in technical planning, support, deployment, implementation, and maintenance of B-2 SPO... 
    Senior
    Contract work
    For contractors

    CP Marine LLC

    Oklahoma City, OK
    4 days ago
  • A leading technology consulting firm located in Oklahoma City is seeking a skilled System Administrator/Engineer. The role requires expertise in Linux Red Hat and VMWARE, with a focus on building and managing servers. Ideal candidates should have over 5 years of experience... 
    Senior

    Stem Xpert

    Oklahoma City, OK
    20 days ago
  • A technology services provider in Louisiana seeks a Database Administrator to manage database systems at Fort Johnson. Responsibilities include installation, configuration, monitoring, and troubleshooting of databases. Ideal candidates should have five years of experience... 
    Senior

    A & T Systems, Inc.

    Oklahoma City, OK
    3 days ago
  • ASRC Federal Holding Company is hiring a Database Administrator Level 3 in Oklahoma City. This role involves managing databases, ensuring their efficiency, and implementing security measures. Candidates must be U.S. citizens or permanent residents and have experience working... 
    Senior
    Permanent employment

    ASRC Federal Holding Company

    Oklahoma City, OK
    2 days ago
  • ASRC Federal in Oklahoma City seeks a Database Administrator Level 3 to support the FAA's SLE Automation and Tools Team. This role involves managing databases, ensuring system efficiency, and collaborating on technical solutions. The ideal candidate will have a Bachelor... 
    Senior

    ASRC Federal Holding Company

    Oklahoma City, OK
    1 day ago
  • $75k - $100k

     ...Job Overview – IT Systems Administrator Compensation: $75,000 – $100,000/year + bonus Location: Plymouth County, MA Schedule: Monday to Friday (In-Office) Atlantic Group is hiring an IT Systems Administrator in Plymouth County, MA for our client, supporting enterprise... 
    Work at office
    Monday to Friday

    Atlantic Group

    Oklahoma City, OK
    1 day ago
  •  ...Senior Director, Principal Gifts About the Company Philanthropic organization supporting Indigenous culture & individuals Industry Non-Profit Organization Management Type Non Profit Founded 2017 Employees 11-50 Categories ~ Non-Profit &... 
    Senior

    Confidential

    Oklahoma City, OK
    3 days ago
  • BOK Financial Corporation seeks a Supervisory Principal in Oklahoma City. This role involves supervising advisors, ensuring compliance with securities regulations, and managing sales activities effectively. We require a Bachelor’s degree, relevant certifications, and significant...
    Senior

    BOK Financial Corporation

    Oklahoma City, OK
    16 hours ago
  • $116.3k - $213.4k

    Northrop Grumman Corp. (JP) is hiring a Senior Principal Systems Engineer in Oklahoma City. Join our team to develop revolutionary systems that impact lives globally. This role requires STEM degree education and an active security clearance, alongside extensive experience... 
    Senior
    Relocation package

    Northrop Grumman Corp. (JP)

    Oklahoma City, OK
    16 hours ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Senior Systems Administrator. Be the first to apply!