Administrative Assistant

ECC•Tamuning, GU

15h•$16 - $20

About The Position

ECC is seeking a motivated and organized Administrative Assistant to join our busy construction office in Guam . This position provides essential support and coordination for staff and management, assisting with administrative duties, special assignments, and project-related activities. Key Responsibilities Base Access & Lodging Support Process and track military base passes for staff, visitors, and contractors. Assist employees and visitors in securing lodging or apartment accommodations , including coordinating with local housing providers. Manage apartment billing and utilities invoices , ensuring timely processing and accurate recordkeeping. Administrative & Document Management Prepare, update, and distribute construction-related documents, reports, and logs . Manage incoming and outgoing mail, faxes, and deliveries . Perform general office tasks such as photocopying, filing, and maintaining office supplies. Compile and synthesize data from multiple sources to prepare professional documents and reports. Travel & Scheduling Coordinate domestic and international travel arrangements , as needed, while ensuring efficient use of company resources. Manage and maintain staff calendars , organize schedules, and arrange in-person and virtual meetings . Financial & Project Coordination Prepare, track, and route project-related invoices for internal processing. Support procurement staff with project-related purchasing activities. Assist in completing progress reports, schedule updates, and expense reports accurately and on time. Communication & Client Relations Draft and prepare routine correspondence in a professional and timely manner. Interface with clients and stakeholders , representing the company with professionalism and courtesy. Collaborate effectively with remote teams and multiple project locations .

Requirements

Proven ability to work effectively with colleagues across multiple locations and time zones.
Demonstrated commitment to dependable and professional service .
Strong attention to detail and accuracy when managing large volumes of data.
Ability to meet tight deadlines and respond to critical requests promptly.
Proficient in Microsoft Office Suite , email systems, and internet-based tools.
Minimum of one year of experience as an Administrative Assistant (experience with Government contracting programs preferred).
High School diploma or equivalent required (a combination of education and experience may substitute).

Nice To Haves

experience with Government contracting programs preferred

Responsibilities

Process and track military base passes for staff, visitors, and contractors.
Assist employees and visitors in securing lodging or apartment accommodations , including coordinating with local housing providers.
Manage apartment billing and utilities invoices , ensuring timely processing and accurate recordkeeping.
Prepare, update, and distribute construction-related documents, reports, and logs .
Manage incoming and outgoing mail, faxes, and deliveries .
Perform general office tasks such as photocopying, filing, and maintaining office supplies.
Compile and synthesize data from multiple sources to prepare professional documents and reports.
Coordinate domestic and international travel arrangements , as needed, while ensuring efficient use of company resources.
Manage and maintain staff calendars , organize schedules, and arrange in-person and virtual meetings .
Prepare, track, and route project-related invoices for internal processing.
Support procurement staff with project-related purchasing activities.
Assist in completing progress reports, schedule updates, and expense reports accurately and on time.
Draft and prepare routine correspondence in a professional and timely manner.
Interface with clients and stakeholders , representing the company with professionalism and courtesy.
Collaborate effectively with remote teams and multiple project locations .