System Administrator
$80k - $100kValid8 Financial, Inc.
Cambium is a global company building the advanced materials base for reindustrialization — from AI-driven molecular design to agile domestic manufacturing. Defense, aerospace, and other high-performance applications demand materials that are stronger, lighter, and more resilient, delivered at unprecedented speed and scale. Our team of world-class scientists and engineers was assembled specifically to take on those challenges. Whether enabling hypersonic flight or protecting critical systems, our solutions solve mission-critical problems and push the limits of what's possible. Come join us and revolutionize advanced materials for defense, aerospace, and beyond. About the Role We're looking for an experienced System Administrator to manage, secure, and optimize our Microsoft 365 environment and broader IT infrastructure. This person will be proactive and self-directed, able to identify, document, communicate and resolve issues with a customer-service mindset, while maintaining security and policy compliance. They will be a key point of contact for day-to-day system health, user support escalations, and infrastructure projects — someone who takes ownership, spots problems before they become fires, and drives improvements without needing constant direction. Key Responsibilities Administer and maintain the Microsoft 365 environment, including Exchange Online, SharePoint Online, Teams, OneDrive, and Entra ID (Azure AD). Administer on-premises and/or hybrid infrastructure (servers, networking, Active Directory) as applicable. Manage user accounts, licensing, groups, and permissions across Microsoft 365 and connected systems. Respond to and resolve incidents in a timely manner; provide direct helpdesk support for company users. Manage physical and virtual device, network, and compute infrastructure, configuration, and maintenance; ensure updated, performant and compliant. Document issues, system changes, actions and resolution. Stay current on Microsoft 365 roadmap changes, security updates, and industry best practices; Evaluate, recommend, and implement new tools and practices. Required Qualifications 5+ years of experience in system administration, with hands-on Microsoft 365 administration experience (Exchange Online, SharePoint, Teams, Entra ID/Azure AD) Strong understanding of Windows Servers, Azure configuration, networking, identity and access management, including MFA, conditional access, SSO, enterprise applications Experience with PowerShell scripting for automation and administration tasks Strong troubleshooting skills and the ability to diagnose issues methodically Excellent written and verbal communication skills, with the ability to explain technical issues to non-technical staff Strong sense of ownership — comfortable identifying problems and proposing solutions rather than waiting to be told what to do Preferred Qualifications Microsoft certifications (e.g., Microsoft 365 Certified: Administrator Expert, Azure Administrator Associate, or equivalent) Experience with Intune/endpoint management and device compliance policies Experience with security tools such as Microsoft Defender, Purview, or similar Experience in high-security and regulated IT environments Familiarity with hybrid cloud environments Background in a small-to-mid-sized IT team where versatility across roles is common Salary Range: $80K - $100K BENEFITS: Cambium offers a highly competitive compensation and benefits plan. This includes excellent medical/dental/vision benefits, and a matching 401(k) plan, professional development reimbursement, and an opportunity for equity for most full-time positions #J-18808-Ljbffr Valid8 Financial, Inc.
- ...RTX in El Segundo, CA seeks a Linux & Windows Administrator with an active TS/SCI Poly to support classified programs. The role focuses on managing mixed Windows and Red Hat environments, collaborating with Cybersecurity, and delivering secure, scalable IT infrastructure...Suggested
$75.8k - $144.2k
...creating a safer, more secure world. Join us and help shape the future of aerospace and defense.What You Will Do:Provide IT systems administration in a heterogeneous Microsoft Windows and RedHat Enterprise Linux environment.Working as a team member in a fast-paced...SuggestedFull timeTemporary workWork experience placementFlexible hours- ...Radiant is seeking a Senior Systems Administrator to own day-to-day systems within Microsoft 365 GCC High at its El Segundo HQ. You’ll craft identity and access automation, manage endpoint and email security, and support the CMMC controls as part of normal duties. You’...Suggested
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$133.5k - $190.05k
...Laboratory this summer, with initial customer deliveries beginning in 2028. About the Role: Radiant is seeking a Senior Systems Administrator to own the systems that keep the company running day-to-day within Microsoft 365 GCC High. You'll own the tenant, build our...Full timeWork experience placementSummer workWork at officeImmediate startRemote workFlexible hoursWeekend work$80k - $100k
...primary payloads attached to the bus -- and unlock a 'one-to-many' system, where each satellite has a large number of payloads which can... ...Kinetic is seeking a mid-level Infrastructure & Systems Administrator to maintain and scale the infrastructure supporting our engineering...Permanent employmentFlexible hours$75k - $95k
...primary payloads attached to the bus -- and unlock a 'one-to-many' system, where each satellite has a large number of payloads which can... ...we do in space. What You'll Do: The System Administrator w ill handle the day-to-day operation, maintenance, and support...Permanent employmentFlexible hours$103.6k - $155.4k
...employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for... ...Northrop Grumman CIDO Classified Solutions team is seeking a Systems Administrator to support information system lifecycle activities. The...Full timeRemote workRelocation packageFlexible hoursShift workWeekend work$60 - $70 per hour
...forces to power the immersive experiences of the future as Cosm. Innovation is in our DNA. Summary Cosm is looking for a Senior Systems Administrator to keep our creative infrastructure running — render farms, remote VFX/post workstations, and large-scale media asset...Hourly payTemporary workLocal areaRemote workNight shiftWeekend work3 days per week- Space Kinetic Corp. is seeking a mid-level Infrastructure & Systems Administrator to maintain and scale our IT infrastructure across Windows and Linux servers, Proxmox virtualization, networking, cybersecurity, and Microsoft 365 services. You will help support engineering...
- ...Partner Engineering and Science, Inc is seeking a Senior IT System Administrator to support, secure, and improve its Microsoft-centered environment. The role requires hands-on experience with Microsoft 365, Teams, networking, security, and server infrastructure. SharePoint...
- ...Partner Engineering and Science, Inc. is seeking a Senior IT System Administrator to support, secure, and improve its Microsoft-centered environment. The role requires hands-on experience with Microsoft 365, Teams, networking, security, and server infrastructure, with...
- A leading managed service provider is seeking a Service Desk Specialist to provide technical expertise and ensure client satisfaction. The role requires 4+ years of IT experience, excellent problem-solving skills, and knowledge of Microsoft technologies. You will support...Remote work
- ...Pelco System AdministratorWe are seeking an experienced and detail-oriented Pelco System Administrator to oversee, manage, and ensure the optimal and secure operation of our Pelco video security systems. The successful candidate will have hands-on experience with Pelco...For contractorsLocal area
- ...Senior System AdministratorThe Senior System Administrator's role is to administer Pipeline Health's computer systems to ensure high levels of availability and security of the supported business applications. This individual participates in the planning and implementation...Local area
$95.5k - $181.7k
Raytheon is seeking a qualified IT Systems Administrator to work onsite in El Segundo, California. The ideal candidate must have a university degree and a minimum of 5 years of experience, alongside an active Top Secret security clearance. Responsibilities include managing...Full time- Overview We are seeking an experienced and detail‑oriented Pelco System Administrator to oversee, manage, and ensure the optimal and secure operation of our Pelco video security systems. The successful candidate will have hands‑on experience with Pelco surveillance products...For contractorsLocal area
- ...brands in 28 states. We have added to our spirits portfolio with our first Tequila and Mezcal brands. Key Responsibilities System Administration Manage and maintain our servers, storage systems, and virtualization platforms to ensure high availability and optimal performance...Work experience placementLocal area
- ...Job Description Job Description The Role: Systems Administrator The Location: SB, LA, OC, SD, California Make a Difference Where It Matters Most At CalPrivate Bank, we believe banking is personal. We have deep roots in the communities we serve, and our...
- ...Windows System AdministratorRaytheon has an available position for an experienced Windows System Administrator who will work in a highly collaborative, multi-platform and multi–disciplined environment. The System Administrator must possess a secret security clearance...Full time
$30.8 - $56.16 per hour
...Classified Windows System AdministratorThe Aerospace Corporation is the trusted partner to the nation's space programs, solving the... ...Join The Aerospace Corporation as a Classified Windows System Administrator (Systems Administration Specialist II/III) and play a pivotal...Full timeImmediate startRemote work$95.5k - $181.7k
...Principal Windows Administrator- Must have active secret clearance U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active... ...and help shape the future of aerospace and defense. Principal System Administrators, based in El Segundo, CA, infrastructure Workplace...Temporary workWork experience placementWork at officeRemote workFlexible hours- The Ring and Blink CS Technology Enablement team is seeking a Systems Engineer to support the AI-driven platforms powering next-... ...AI-driven solutions for document management, reporting, and administrative tasks· Stay current on emerging AI capabilities and recommend...Local area
- ...Job Description Job Description IESE Solutions is seeking a highly experienced Sr. Principal Space Systems Engineer to support the Space Systems Command (SSC) directorates. Position is available in El Segundo, California . Typical responsibilities include:...Temporary workFor contractorsWork experience placementWork at officeFlexible hours
- ...Job Description Job Description IESE Solutions is seeking Systems Engineers with varying levels of experience and backgrounds to support the U.S. Space Forces mission of delivering warfighter capability via the Space Systems Command (SSC) directorates. Positions...Temporary workWork experience placementWork at officeFlexible hours
$135k - $175k
...where each satellite in a constellation has one (or a small # of) primary payloads attached to the bus -- and unlock a 'one-to-many' system, where each satellite has a large number of payloads which can be deployed from their host spacecraft at high velocities without...Permanent employmentFlexible hours$133.5k - $190.05k
...Idaho National Laboratory this summer, with initial customer deliveries beginning in 2028. About the Role Radiant is seeking a Systems Engineer to develop, maintain, and govern engineering design standards, requirements, and verification methodologies for the mass...Full timeSummer workImmediate startRemote workFlexible hoursWeekend work$140k - $170k
...Job Description Job Description Space Systems Integration (SSI) is a fast-growing engineering company that provides aerospace solutions to a variety of government and commercial customers. Our employees are forward-thinking, self-directed individuals who are committed...For contractorsWork at officeLocal area- ...Job Description Job Description Seeking a Systems Engineer with experience to perform on programs within the Department of Defense (DoD). Responsibilities • Participate in programmatic and technical discussions to initiate new program concepts • Demonstrate...For contractors
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