On-Site Administrative Coordinator: Scheduling & Office Ops

Electro Specialty Systems; San Diego (CA); On-site; USD 42,000 - 64,000; Full time

Job summary

Electro Specialty Systems (ESS) is seeking an Administrative Coordinator to join our on-site team in the San Diego metropolitan area. In this full-time role, you will manage calendars, schedule meetings, greet visitors, answer calls, and handle routine inquiries while supporting internal teams with data entry and document organization.

You will also assist with basic finance tasks such as processing invoices, tracking expenses, and helping prepare budget documentation, ensuring smooth office

Qualifications

• Strong communication and customer service skills.
• Proficient administrative assistance and organization.
• Basic finance capabilities: invoice processing and expense tracking.
• Proficiency with office productivity tools and digital records.
• Ability to prioritize tasks, meet deadlines in a fast-paced environment.
• Previous experience in an administrative/support role preferred.
• High school diploma required; coursework in business admin is a plus.

Responsibilities

• Schedule meetings and manage calendars.
• Organize documents and maintain accurate records.
• Answer calls, greet visitors, and respond to routine inquiries.
• Support internal teams with data entry and report preparation.
• Coordinate office supplies and vendor services.
• Process invoices and track expenses; assist with budget documentation.

Skills

Communication

Administrative support

Finance basics

Microsoft Office

Attention to detail

Education

High school diploma

Tools

Microsoft Office

Job description

Electro Specialty Systems (ESS) is seeking an Administrative Coordinator to join our on-site team in the San Diego metropolitan area. In this full-time role, you will manage calendars, schedule meetings, greet visitors, answer calls, and handle routine inquiries while supporting internal teams with data entry and document organization.

You will also assist with basic finance tasks such as processing invoices, tracking expenses, and helping prepare budget documentation, ensuring smooth office