Cesiumastro
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Office Administrator

Office AdministratorAdministration & Office Support
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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,

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Office AdministratorAdministration & Office Support
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 an Office Administrator to our team. If you enjoy working in a startup environment, and have talent and a good work ethic, we would like to hear from you. 
 
We are looking for someone to be the face of our office to greet employees, visitors, and vendors. You will be the office go-to person and manage all office operations to help ensure organizational effectiveness, efficiency, and safety. You should be experienced in handling a wide range of administrative and office support related tasks and will be able to work independently with little or no supervision. You must be well organized, flexible and enjoy the administrative challenges of supporting an office of diverse people. 
  • Manage various office operations and day-to-day office activities throughout the office. 
  • Act as company liaison to building management. Coordinate contractor visits, facility access, and vendor selection. Relay building information to the team for daily activities and project planning. Ensure that the company follows building rules and regulations at all times. 
  • Provide general administrative support and assist with ad hoc projects. 
  • Uphold office standards, set up conference rooms, light cleaning and organizing. 
  • Assist recruiting with various interview coordination activities (hosting onsite candidates). 
  • Work closely with outside vendors and members across our team to assist with administrative tasks (shipping, etc.) and various special ordering requests (business card ordering, ad hoc gifts, etc.). 
  • Act as an on-site representative for company functions located in our El Segundo, California headquarters such as HR, Finance, Facilities Management and Environmental Health & Safety, Security, etc.
  • Coordinate contractors and service providers for work required in the facility ensuring projects are completed to requirements and timely.
  • Coordinate large deliveries taking into account building regulations, staffing, and delivery capabilities. 
  • Greet visitors and support with visitor-related logistics. 
  • Audit facility state of health and plan, budget, and coordinate repairs, updates, and improvements. 
  • Set up conference rooms for visitors and desks for new hires. 
  • Facilitate onsite catering for lunches and for special events such as board meetings or birthdays. 
  • Organize office operations and procedures. 
  • Order, organize, and maintain inventory of office supplies and consumables. 
  • As needed, manage the office intranet page to provide up to date policies, schedules, and other information to employees. In addition, manage other sources of information such as regular email announcements and the office bulletin board. 
  • Manage budgets, purchase orders, and expense reports for office activities and projects. 
  • Participate in company events and align on our strategic initiatives. 
  • Assist the team with schedule coordination and travel planning. 
  • Assist all team members with purchase order submission.
  • 2 years of office administration and/or receptionist experience.
  • Associate's degree required, bachelor's degree preferred. 
  • Outstanding organization skills, with solid attention to detail and critical thinking. 
  • Strong Microsoft Office skills (Outlook, Excel, PowerPoint, Word). 
  • Strong telephone/communication and interpersonal skills. 
  • A positive "can do" attitude, must be flexible and accommodating with a strong customer orientation.
  • Self-starter, independent. 
  • The ability to work as part of a team and to build strong working relationships. 
  • Startup/tech company experience. 
  • Event planning and execution for larger groups. 
  • Knowledge of AS9100/ISO9001 quality management system requirements.
  • Location & Eligibility

    Where is the job
    Melbourne, United States
    On-site at the office
    Who can apply
    US

    Listing Details

    Posted
    May 8, 2026
    First seen
    May 8, 2026
    Last seen
    May 8, 2026

    Posting Health

    Days active
    0
    Repost count
    0
    Trust Level
    67%
    Scored at
    May 8, 2026

    Signal breakdown

    freshnesssource trustcontent trustemployer trust
    Cesiumastro
    Employees
    350
    Founded
    2017
    View company profile
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    CesiumastroOffice Administrator