On-Site Operations & Facilities Assistant

Sierra Ventures; Tempe (AZ); On-site; USD 42,000 - 52,000; Full time

Benefits offered by this job

Discretionary annual bonus

New hire equity grant

Comprehensive health plans

401K with company matching

Paid Parental Leave

Flexible time off

Job summary

Gemini is seeking a meticulous Office Assistant to support day-to-day operations at our Arizona Operations Center. This on-site role partners with RESO leadership, Corporate Security, IT, People, and facilities teams to ensure a secure, efficient, and employee-friendly workplace.

The ideal candidate is proactive, organized, discreet, and able to manage multiple priorities in a 24/7 environment. You will handle office services, space planning, vendor coordination, and onboarding support while

Qualifications

• 2+ years in office services, facilities, or related roles.
• Strong security mindset and ability to follow protocols precisely.
• Ability to work independently with clear decision-making.
• Excellent written and verbal communication with stakeholders.
• Experience coordinating vendors and cross-functional teams (IT, Security, People, Facilities).
• Familiarity with workplace, access control, and project-management systems a plus.
• Comfort with hands-on duties including moves and light setup.

Responsibilities

• Serve as primary on-site Office Services contact and manage daily workplace operations.
• Maintain a professional, secure, and employee-ready office environment and shared spaces.
• Support 24/7 Operations Center needs including seating, access, and office readiness.
• Coordinate onboarding desk assignments, building access, parking, and orientation activities.
• Plan and execute office moves, buildouts, and vendor logistics with RESO leadership and IT.
• Ensure security procedures are followed and escalate issues when needed.

Skills

Office operations

Security awareness

Organizational skills

Communication

Independently driven

Cross-functional collaboration

Attention to detail

Tools

Google Workspace

Slack

Job description

Gemini is seeking a meticulous Office Assistant to support day-to-day operations at our Arizona Operations Center. This on-site role partners with RESO leadership, Corporate Security, IT, People, and facilities teams to ensure a secure, efficient, and employee-friendly workplace.

The ideal candidate is proactive, organized, discreet, and able to manage multiple priorities in a 24/7 environment. You will handle office services, space planning, vendor coordination, and onboarding support while