Part-Time In-Person Office Administrator — San Antonio

MIG, Inc.; San Antonio (TX); On-site; USD 41,000 - 52,000; Part time

Benefits offered by this job

Flexible schedule

Sick time accrual

Job summary

MIG, Inc. is seeking a part-time Office Assistant for our San Antonio office. The role is 100% in-person, approximately 20 hours per week, with a flexible schedule (e.g., Mon–Fri 9:00am–1:00pm).

The position supports staff, office management, and culture initiatives. Responsibilities include daily administrative tasks, timesheet reviews, calendar coordination, data entry in Deltek, expense reporting, and potential backup project admin duties.

Qualifications

• High school diploma or GED required.

Responsibilities

• Provide general office support and coordinate with staff and leadership.
• Review, edit, and approve staff timesheets.
• Manage office calendar, time off requests, and plan office events.
• Enter expenses into Deltek and submit reports with receipts.
• Assist with backup project administration duties, including forms and travel arrangements.

Skills

Communication skills

Prioritization

Team collaboration

Time management

Professional demeanor

Proactive/organized

Adaptability

Education

High school diploma or GED

Tools

Microsoft Word

Microsoft Excel

Deltek Vision

Deltek Vantage Point

Google Suite

Job description

MIG, Inc. is seeking a part-time Office Assistant for our San Antonio office. The role is 100% in-person, approximately 20 hours per week, with a flexible schedule (e.g., Mon–Fri 9:00am–1:00pm).

The position supports staff, office management, and culture initiatives. Responsibilities include daily administrative tasks, timesheet reviews, calendar coordination, data entry in Deltek, expense reporting, and potential backup project admin duties.