Senior IT Administrator
$99k - $117kRoman Health Pharmacy LLC
Please Note: To conform with the United States Government Space Technology Export Regulations, the applicant must be a U.S. citizen, lawful permanent resident of the U.S., conditional resident, asylee or refugee (protected individuals as defined by 8 U.S.C. 1324b(a)(3)), or eligible to obtain the required authorizations from the U.S. Department of State. At CesiumAstro , we are developers and pioneers of out-of-the-box communication systems for satellites, UAVs, launch vehicles, and other space and airborne platforms. We take pride in our dynamic and cross‑functional work environment, which allows us to learn, develop, and engage across our organization. If you are looking for hands‑on, interactive, and autonomous work, CesiumAstro is the place for you. We are actively seeking passionate, collaborative, energetic, and forward‑thinking individuals to join our team. We are looking to add a Senior Information Technology (IT) Administrator to our team. This role is a project‑focused role responsible for planning and executing enterprise IT initiatives at CesiumAstro. In this position, you will own the delivery of system migrations, integrations, companywide upgrades, and new application rollouts that support a growing aerospace and defense organization. The Senior IT Administrator operates with general supervision and exercises independent judgment in diagnosing, prioritizing, and resolving a wide range of technical issues affecting end users and enterprise systems.
JOB DUTIES AND RESPONSIBILITIES
Lead and execute system migration projects including planning, testing, cutover, and post‑migration support. Drive system integrations across enterprise platforms to improve interoperability and reduce manual workflows. Coordinate and implement companywide software and hardware upgrades with minimal disruption to operations. Manage Active Directory cleanup efforts including account audits, group policy reviews, and directory hygiene. Plan and execute new application rollouts including stakeholder coordination, testing, and end user enablement. Administer and maintain user accounts, groups, and permissions in Active Directory and/or Azure AD/Entra ID. Manage endpoint configuration, imaging, patching, and software deployment via MDM platforms (e.g., Intune). Monitor system health and assist in administration of servers, cloud environments, network infrastructure, M365 advanced skills, including Purview, Security, and Entra ID. Support IT security practices including access reviews, MFA enforcement, and endpoint compliance. Mentor junior helpdesk staff and provide guidance on escalated technical issues. Develop and maintain technical documentation including SOPs, knowledge base articles, and troubleshooting guides. Identify recurring issues, contribute to root‑cause analysis, and implement process improvements. Participate in IT projects including system migrations, office expansions, and tool evaluations.JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS
5–8 years of IT support or systems administration experience required (3–6 years with a relevant M.S.). B.S. in Information Technology, Computer Science, or related field preferred; equivalent experience considered. Complete understanding and wide application of IT support and systems administration principles. Advanced troubleshooting skills across hardware, software, networking, and cloud‑connected environments. Working knowledge of IT security practices including endpoint compliance, access management, and MFA. Ability to develop technical documentation and SOPs to support knowledge sharing and process consistency. Proficiency in Microsoft 365 (Outlook, Teams, SharePoint, OneDrive). Experience with AWS cloud configuration and support. Expertise in Active Directory Azure AD/Entra ID, and VPN and remote access tools. Knowledge of IT ticketing systems. Strong oral and written communication skills. Solid troubleshooting and problem‑solving skills. Strong customer service orientation.PREFERRED EXPERIENCE
Experience in a manufacturing, aerospace, or defense environment. CompTIA A+, Network+, Security+, Microsoft 365 Certified, or ITIL Foundation. Familiarity with ITAR/export compliance requirements in an IT context. $99,000 - $117,000 a year CesiumAstro considers several factors when extending an offer, including but not limited to, the role and associated responsibilities, a candidate’s work experience, education/training, and key skills. Full‑time employment offers include company stock options and a generous benefits package including health, dental, vision, HSA, FSA, life, disability and retirement plans. CesiumAstro is an Equal Opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, protected Veteran Status, or any other characteristic protected by applicable federal, state, or local law. Please note: CesiumAstro does not accept unsolicited resumes from contract agencies or search firms. Any unsolicited resumes submitted to our website or to CesiumAstro team members will be considered property of CesiumAstro, and we will not be obligated to pay any referral fees. #J-18808-Ljbffr Roman Health Pharmacy LLC$130k - $165k
...in‑space ecosystem. About the Role Varda is looking for a Senior Systems Administrator who is equal parts identity architect and cloud operator who... ...documentation better than you found it. Mentor junior IT team members on identity, cloud platform, and endpoint management...SeniorPermanent employmentFull timeImmediate startRelocation packageFlexible hours$130k - $190k
...D.C., San Francisco, San Diego, Seattle, and London. For more information, please visit Role Overview We are seeking a Senior Network Administrator to design, implement, secure, and sustain mission‑critical network infrastructure supporting business operations. This role...SeniorFor contractorsCasual workRelocation package$110k - $137k
#### Senior Systems AdministratorFlightWave Aerospace - A Red Cat Company • $110k - $137k/yr • Torrance... ...**Position Summary** The Senior Systems Administrator will own the reliability, security, and performance of critical IT infrastructure across Microsoft 365, cloud,...SeniorPermanent employmentWork at officeLocal area- ...Job Summary The Senior System Administrator’s role is to administer Pipeline Health’s computer systems to ensure high levels of availability and... .... Provide leadership and guidance to junior members of the IT team. Maintain current knowledge of relevant information of...SeniorLocal area
$22 - $28 per hour
...attention to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran or disability status. IT Systems Administrator Intern US-CA-Culver City Job ID: 2026-7413 | Type: Intern | # of Openings: 1 | Category: Administrative/Customer Service |...SuggestedHourly payInternshipWork at office2 days per week$95k - $115k
...SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars. IT SYSTEMS ADMINISTRATOR, LAUNCH SpaceX is looking for a highly skilled and knowledgeable IT Systems Administrator to support the networking,...Permanent employmentTemporary workNight shiftWeekend workAfternoon shift- Role Overview The Secure Subsystems Engineering team is looking for a Systems Integrated Product Team (IPT) Lead. The IPT Lead leads a Systems Engineering Scrum Team, ensuring delivery of secure, cross‑domain technologies and cryptographic products for mission‑critical...SeniorRelocation package
- ...seeks a motivated, career and customer-oriented Network/System Administrator (NSA) -III to join our team in El Segundo, CA . The... ...FTP, and SSL. Interface directly with local customers and IT staff to provide technical guidance and quickly resolve network...Work at officeLocal area
$190k - $260k
...through detailed design, analysis, verification, production support, and fielded system sustainment. The ideal candidate is a senior digital hardware technical authority with deep high-speed board design, signal integrity, and power integrity expertise; a track...SeniorFull timeWork experience placementCasual workRelocation package- ...Impulsespace in Redondo Beach is seeking a Senior Associate for Government Contracts to provide strategic legal counsel on U.S. government contracting and compliance. This role demands substantial experience and involves advising executives, negotiating agreements, and...Senior
$135.8k - $180.1k
Rivian is seeking a Product Marketing Lead in Palo Alto, California, responsible for owning product narratives and managing go-to-market strategies across teams. Ideal candidates have over 10 years of experience in product marketing, with a proven ability to craft effective...Senior$110k - $240k
CHAOS Industries is redefining modern defense with omniscient systems purpose-built for today’s realities. Designed and built by top U.S. military veterans and Silicon Valley innovators, CHAOS Industries’ products are powered by Coherent Distributed Networks (CDN™), empowering...SeniorFull timeWork experience placementCasual workWork at officeRelocation package$205k - $245k
...Industries delivers advanced sensing and detection solutions that give the ultimate advantage: time. Role Overview CHAOS is seeking a Senior Principal Mechanical Engineer to serve as the mechanical authority and provide high‑value, hands‑on mechanical expertise for the...SeniorFull timeWork experience placementCasual workRelocation package- Overview Collins Aerospace is a leader in technologically advanced, intelligent solutions that help redefine the aerospace and defense industry. The Secure Subsystems Department is responsible for the design, test, and certification of cross‑domain technologies and cryptographic...SeniorRelocation package
$55k - $75k
...We are seeking a motivated Systems Administrator to support and maintain our enterprise IT environment. This role is ideal for someone with solid foundational... ...policies, standards, and security practices Work with senior team members to escalates and resolve complex...Full timeTemporary workFlexible hours- ...lead contract compliance for an assigned facility group in Culver City, California. This role includes supervising compliance administrators and ensuring adherence to state and federal laws through regular audits. The ideal candidate will possess a Bachelor’s degree,...SeniorContract work
- A leading advertising agency in California is seeking a skilled individual passionate about understanding communities and culture. The role requires expertise in research, social strategy, and collaboration. As part of a hybrid work policy, the candidate should be comfortable...Senior
$100k - $110k
A leading advertising firm is seeking a passionate individual to develop social strategies grounded in community and culture. The role involves conducting in-depth research and engaging with specific communities, tracking cultural trends, and collaborating with creative...Senior- Prosum in El Segundo seeks a Sr. Project Manager to oversee multiple engineering projects, coordinating with cross-functional teams and managing budgets and schedules. Candidates should have a strong project management background with over 7 years' experience, especially...Senior
$100k - $110k
A prominent advertising agency is seeking a Community Insights Strategist in El Segundo, California. The ideal candidate will have over 5 years of experience in advertising or marketing, coupled with strong qualitative and quantitative research skills. Responsibilities...SeniorWork at officeRemote work$35 - $39 per hour
Ivy Living in Inglewood, California, is seeking a Sales and Marketing Director to generate and manage leads, create marketing strategies, and achieve occupancy targets. The role demands 3+ years in marketing or sales, exceptional communication skills, and strong organizational...SeniorHourly pay- ...could pivot to cover for any vacation or bandwidth issues) The Senior Financial Analyst position, under general guidance of Supervisor... ...financial models and analyses to drive increased performance across IT teams. Perform monthly actuals to budget/forecast variance...SeniorWork at office
$100k
...expertise is both valued and vital. As a continuously growing company, we are expanding our footprint and our impact. We are seeking a Senior Accounting Manager who is meticulous, ethically grounded, and ready to lead our financial operations through this exciting period...SeniorFull timeWork at office$85k - $100k
...Position: Senior Financial Analyst Location: Hawthorne, CA (Hybrid) Salary: $85,000 – $100,000 Responsibilities Own and evolve rolling forecasts—including scenario modeling and pressure-testing key assumptions—to keep leadership ahead of the curve. Build and enhance financial...Senior$120k - $160k
...for a High-Profile Organization We're seeking an experienced Senior Payroll Manager to oversee payroll operations for approximately... ...regulations Oversee payroll tax reporting, filings, and payroll system administration Review garnishments, wage deductions, and other payroll...SeniorRelocation package$55 - $65 per hour
...Base pay range $55.00/hr - $65.00/hr US IT Recruitment Specialist, connecting candidates to the clients Duration: 05 Months Job Description: We are looking for a Senior Financial Analyst to provide financial business support in forecasting, analysis, reporting, accounting...SeniorContract work- California applicants: Please click here to review the Costco Applicant Privacy Notice. The jobs listed are examples of the typical kinds of positions that Costco may hire for when openings exist. The listing does not mean that any positions are currently open or available...SeniorTemporary work
$120k - $140k
Overview We are seeking an experienced cost estimating professional with strong analytical and communication skills to support cost analysis for the Space Access Program Acquisition Executive (PAE) for the National Security Space Launch Program, which includes United...SeniorFor contractors- ...About the Opportunity Our client, a global consumer products leader with some of the world's most recognized brands, is seeking a Senior Financial Reporting Analyst to join its Corporate Financial Reporting team. This is an outstanding opportunity for an accounting professional...Senior
- A technology firm in California is seeking an experienced COBOL400 Developer to join their dynamic team. The ideal candidate will have over 8 years of experience in COBOL400 and AS400 development, including expertise in RPG, CL, and DB2. Familiarity with Agile methodologies...Senior
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior IT Administrator. Be the first to apply!
- senior manager quality engineering El Segundo, CA
- american senior communities El Segundo, CA
- senior implementation project manager El Segundo, CA
- senior commercial counsel El Segundo, CA
- senior director diversity & inclusion El Segundo, CA
- sr. financial reporting accountant El Segundo, CA
- senior software engineer remote El Segundo, CA
- senior living El Segundo, CA
- senior resident engineer El Segundo, CA
- senior analyst El Segundo, CA


