Windows Administrator jobs in Missouri

Remote

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Today

We are seeking a DevSecOps Engineer to join our Engineering team. This role is critical to securing, hardening, and scaling the infrastructure that powers our platform across cloud-hosted production environments. This engineer will work closely with platform, infrastructure, and security stakeholders to improve the security and operational maturity of our AWS and Kubernetes environments, support compliance and audit readiness, and help ensure our systems are reliable, secure, and maintainable a

Full-time

USD 135,000.00 - 220,000.00 per year

System Engineer - ArcGIS (Mission-Focused)

St. Louis, Missouri

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Today

Overview Join Esri`s Professional Services team and help design, deploy, and optimize mission critical geospatial systems that support national security operations. In this role, you will work directly with mission focused organizations to implement and modernize enterprise ArcGIS environments across complex, secure infrastructures. You will architect and support deployments across cloud, on-premises, and hybrid environments, ensuring performance, scalability, and reliability for high impact o

Full-time

USD 120,640.00 - 197,600.00 per year

Senior Systems Engineer, Storage Operations

Kansas City, Missouri

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Today

Job Description The role is responsible for designing, deploying, administering, and maintaining mission-critical storage infrastructure, including provisioning, zoning, replication, performance monitoring, troubleshooting, security remediation, compliance support, vendor coordination, and infrastructure lifecycle management activities. Responsibilities The position is responsible for the administration, support, and operational management of mission-critical Federal storage infrastructure, i

Full-time

USD 89,200.00 - 209,500.00 per year

Sr. Information Security Engineer (Systems Engineer)

Kansas City, Missouri

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Today

Job Description: Building trusted markets - powered by our people At Cboe Global Markets, we inspire our people to solve complex challenges together because what we do matters. We provide the financial infrastructure that powers the global economy. As a leading provider of market infrastructure and tradable products, Cboe delivers cutting-edge trading, clearing and investment solutions to market participants around the world. We're building meaningful ways to support professional and personal d

Full-time

USD 119,000.00 - 154,000.00 per year

IT Platform Administrator (ARL)

Remote or State College, Pennsylvania

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Today

APPLICATION INSTRUCTIONS: CURRENT PENN STATE EMPLOYEE (faculty, staff, technical service, or student), please login to Workday to complete the internal application process. Please do not apply here, apply internally through Workday.CURRENT PENN STATE STUDENT (not employed previously at the university) and seeking employment with Penn State, please login to Workday to complete the student application process. Please do not apply here, apply internally through Workday.If you are NOT a current empl

Full-time

USD 80,100.00 - 132,204.00 per year

Senior Systems Administrator

St. Louis, Missouri

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Today

Senior Systems Administrator Location: St. Louis, MO Required Clearance: Active TS/SCI with Polygraph Eligibility Employment Type: Full-Time Regular Shift: Day Travel: No Relocation Assistance: Yes Company Overview We are Ennoble First. The people supporting and securing some of the most complex government, defense, and intelligence projects across the country. We ensure today is safe and tomorrow is smarter. Our work has meaning and impact on the world around us, but also on us, and that's

Full-time

USD 125,000.00 - 150,000.00 per year

Tier III Support Technician

Remote or Arlington, Virginia

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Today

Client Suitability Eligibility About Aretum Aretum is a mission-driven organization committed to delivering innovative, technology-enabled solutions to our customers across defense, civilian, and homeland security sectors. Our teams work at the intersection of strategy, technology, and transformation, helping agencies solve their most critical challenges. We believe in investing in our people and creating a culture where collaboration, inclusion, and professional growth are at the forefront.

Full-time

Device Migration Lead / End-User Computing (EUC) Migration Consultant

Remote

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5d ago

Description: Device Migration Lead / End-User Computing (EUC) Migration Consultant Remote Position Summary We are seeking an experienced Device Migration Lead to support the migration of user laptops and end-user devices from the Bellevue domain to the Firelands domain. The ideal candidate will possess strong expertise in Active Directory (AD) migrations, Exchange/Microsoft 365 migrations, application migration coordination, and end-user device transitions. Candidate must have strong ex

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Contract, Third Party

Depends on Experience

Infrastructure Server Engineer

Kansas City, Missouri

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Today

Infrastructure Server Engineer Hybrid 3 day/week On-Site in Kansas City, MO. No travel outside of KC will be required. Contract on W2 Description VMWare Cisco UCS Client is going away from VMWare. This individual will maintain the current environment while they migrate off VMware. The main responsibility of the Infrastructure Server Engineer Contractor is to provide system administration for the Cisco UCS hardware and the VMware environments. Provide assistance as needed for support of the Win

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Contract

Senior Enterprise Infrastructure Engineer

Remote

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Today

Senior Enterprise Infrastructure Engineer Job Posting Location: Remote, USA Posting Start Date: 7/17/26 Req Id: 9115 Required Travel: 0 - 10% Remote, Onsite or Hybrid?: Remote For more than 100 years, Modine has solved the toughest thermal management challenges for mission-critical applications. Our purpose of Engineering a Cleaner, Healthier World means we are always evolving our portfolio of technologies to provide the latest heating, cooling, and ventilation solutions. Through the hard work

Full-time

Site Reliability Engineer

Remote or San Antonio, Texas

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Today

Job Family: Software Development & Support Travel Required: Up to 10% Clearance Required: Ability to Obtain Public Trust What You Will Do: Collaborate with team members and cross-departmental partners to establish and maintain SRE practice in an Agile Scrum framework.Participate in system design reviews to identify points of failure, promote automation and self-healing.Participate in code reviews to ensure efficiency, testability, and scalability.Participate in incident management ceremonies

Full-time

USD 80,000.00 - 133,000.00 per year

DevOps Engineer

Remote or New Jersey

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Today

Position: DevOps Engineer Location: 100% Remote (USA) Job Type: Long-Term Contract Key Responsibilities: Manage and support enterprise Windows Server infrastructure (200+ servers). Perform server upgrades, patching, maintenance, and troubleshooting. Support and administer Broadcom security products such as SiteMinder, IdentityMinder, and LDAP Directory Services. Administer IIS Web Servers and related infrastructure components. Monitor, troubleshoot, and resolve production infrastructure iss

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Contract

Software Developer - Windows Platform Integration

Remote

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Today

The Force Protection Division is looking for a Software Developer - Windows Platform Integration supports the development, configuration, integration, and sustainment of Windows-based applications, services, interfaces, and supporting software components associated with the Rock Island Arsenal Increased Access OTA Prototype. This position focuses on software integration, interface development, supporting data exchange infrastructure, Windows environment configuration, and operational support ac

Full-time

USD 87,100.00 - 157,450.00 per year

Senior Systems Network Engineer

Remote

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Today

Job Type Full-time Description About Chartis Federal Chartis Federal is a premier systems engineering and integration firm specializing in mission-critical IT and communications solutions for law enforcement, homeland security, and defense. As a trusted prime contractor with over $160 million in task order awards, we operate across 22 states and support essential government missions worldwide. Our commitment to excellence has fueled our year-over-year growth, earning us recognition twice as

Full-time

USD 120,000.00 - 140,000.00 per year

Field Service Engineer

Remote

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Today

As a Field Service Engineer, you will help to strengthen our world-class service and support efforts to meet the demands of our customers. Every day, you will work to support our advanced robotics in the field at customer worksites to deliver end-to-end customer-driven solutions. To thrive in this role, you must have exceptional technical capabilities, deep empathy for our customers, and familiarity with field service roles. You must be independent, decisive, and maintain a high attention to det

Full-time

Software Engineer - Cloud Ops / Gov Cloud

Remote or Bellevue, Washington

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Today

Job Description At Icertis, we power the contract intelligence platform that transforms how federal agencies and government organizations manage their most critical missions - from defense and national security to public safety and aerospace. We go beyond traditional contract systems by embedding AI-driven automation, compliance, and real-time insights into every phase of the contract lifecycle, enabling agencies to accelerate procurement, reduce risk, and operate with greater transparency and

Full-time

USD 100,000.00 - 170,000.00 per year

Lead System Administrator

Remote

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Today

Description & Requirements The Lead System Administrator will lead the enterprise Patch and Upgrade Management function. This role owns patch strategy, prioritization, risk-based remediation, and rollback planning across on-prem, cloud, and hybrid systems, ensuring secure, timely, and compliant vulnerability remediation. Maximus is a trusted federal partner supporting mission-critical programs across national security, defense, and public service delivery. Our work focuses on sustaining, operat

Full-time

USD 115,000.00 per year

Sr Staff Information Systems Engineer

Remote

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Today

Join the company that's building the telemetry infrastructure for the AI era. At Cribl, we partner with IT and Security teams at many of the world's biggest enterprises, including half of the Fortune 100, to bridge the gap between AI ambition and infrastructure reality. As the AI Platform for Telemetry, we give customers the choice, control, and flexibility to manage and analyze telemetry for both humans and agents, so they can build what's next. We're one of the fastest-growing private compani

Full-time

USD 136,000.00 - 213,000.00 per year

Office 365 Administrator

Remote or Beaverton, Oregon

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Today

Description Robert Half is seeking an experienced IT Support to join a small, client-focused IT consulting organization. This position offers the opportunity to work directly with a variety of small business clients, providing both remote and onsite technical support across Microsoft technologies, infrastructure, and end-user environments. Location: Remote with local onsite client visits (Portland Metro Area) Schedule: Part-Time (5 to 10 hours per week) Duration: 1 year to start, ongoing Res

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Contract

Site Reliability Engineer (Tu-Sat, night shift)

Remote

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Today

Are you driven to be an innovative Site Reliability Engineer, and looking to join a team where open collaboration, customer focus, and a commitment to excellence are core values? At Ivanti, we work passionately and authentically, striving to win together and make a real impact for our customers and each other. Join us to elevate your career and help deliver innovative solutions in a dynamic, empowering environment. Why this role matters: The Site Reliability Engineering role is a blend of infr

Full-time

Windows Administrator jobs in Missouri, USA