Senior Administrative Assistant

Position Overview

We are seeking an experienced Senior Administrative Coordinator to provide high-level administrative support to our management team and department. This is a critical, long-term temporary role for a proactive professional who can operate autonomously, make independent decisions regarding workflow and scheduling, and manage diverse department operations-from budget assistance and systems support to complex logistics.
Key Responsibilities

• Provide comprehensive administrative support to management and team members, ensuring smooth day-to-day department operations.
• Make independent decisions regarding the planning, organizing, and scheduling of own work, as well as broader decisions impacting department workflows.
• Assist with budget tracking, financial record-keeping, timesheet entry, and expense management.
• Handle team logistics including travel management, meeting room bookings, and correspondence handling.
• Coordinate staff changes, onboard support, and general administrative requests.
• Utilize and navigate multiple business software systems, including word processing, advanced spreadsheets, ERP platforms, and internal databases.

Required Qualifications & Skills

• Experience: Minimum 6+ years of professional administrative or executive support experience in a corporate or fast-paced environment.
• Education: High school diploma required; post-secondary education or degree is a plus.
• Technical Proficiency: Strong computer skills with hands-on experience utilizing various business software, including ERP systems, spreadsheets, and word processing tools.
• Autonomy & Decision-Making: Proven ability to exercise sound independent judgment, manage competing priorities, and make decisions that positively impact department efficiency.
• Communication & Organization: Exceptional organizational skills with clear written and verbal communication abilities to manage team correspondence and cross-functional requests effectively.

Equal Opportunity Employer / Disabled / Protected Veterans

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The pay transparency policy is available here:

For temporary assignments lasting 13 weeks or longer, AllSTEM Connections is pleased to offer major medical, dental, vision, 401k and any statutory sick pay where required.

We are committed to working with and providing reasonable accommodations to individuals with disabilities. If you need a reasonable accommodation for any part of the employment process, please contact your staffing representative who will reach out to our HR team.

AllSTEM Connections participates in the E-Verify program in certain locations as required by law. Learn more about the E-Verify program.

We also consider for employment qualified applicants regardless of criminal histories, consistent with legal requirements, including, if applicable, the City of Los Angeles' Fair Chance Initiative for Hiring Ordinance. Pursuant to applicable state and municipal Fair Chance Laws and Ordinances, we will consider for employment-qualified applicants with arrest and conviction records, including, if applicable, the San Francisco Fair Chance Ordinance. For Los Angeles, CA applicants: Qualified applications with arrest or conviction records will be considered for employment in accordance with the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act.

Additional Skills

(none specified)


AllSTEM Representative Contact Info

Account Executive:


Nichols


Branch Phone:


View phone number on click.appcast.io


Location:


Ontario, CA