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Office Coordinator

GSI Environmental Inc.
Irvine, CA Full Time
POSTED ON 10/25/2026
AVAILABLE BEFORE 11/21/2026
Position Overview

GSI Environmental Inc, a privately owned Environmental Engineering and Consulting firm, has an immediate opening in its Irvine, California office for an Office Coordinator. Duties and responsibilities include providing administrative support to ensure the efficient operation of the office. Supports GSI’s technical employees through a variety of tasks related to office organization and internal and external communications. Must have the ability to effectively communicate in person and via phone and email ensuring that all Office Coordinator duties are completed accurately and delivered with high quality and in a timely manner.

About Us

We are a privately held, employee-owned company offering superior compensation, benefits, and professional development. GSI is highly respected nationally and internationally for the quality of its professional environmental services and the technically advanced projects it has completed over its 40 years of operation. GSI leadership promotes a collaborative, fun, and growth-oriented workplace, resulting in strong staff retention and high client satisfaction.

GSI employs cross-disciplinary teams of environmental engineers and scientists focused on bringing innovative solutions to our clients’ toughest environmental challenges pertaining to water resources, air quality, land restoration, sustainability, renewable energy, ecological services, data science, toxicology, and energy and critical minerals production. Headquartered in Houston, Texas, GSI operates offices in Texas (Austin and Houston), California (Irvine, the San Francisco Bay Area, and Folsom), Colorado (Denver), Washington (Olympia), Montana (Missoula and Helena), Georgia (Atlanta), North Carolina (Raleigh), Virginia (Herndon), and New York (Syracuse), with remote staff located throughout the US. Our talented staff of environmental professionals performs projects nationwide and internationally.

Key Responsibilities

  • Oversee front desk operations, including greeting visitors, managing calls, coordinating guest access, and handling package deliveries
  • Provides direct support to the Office Manager by assisting with administrative/operational tasks and special projects.
  • Assist with planning and scheduling office events, meetings, conferences, and client meetings
  • Assist with electronic file management
  • Assist with booking travel arrangements when necessary
  • Format reports, documents, and tables within Microsoft Word and Excel to be cohesive with GSI branding guidelines
  • Assist technical teams with issuing reports and other project documents, including printing/copying, assembling, and shipping
  • Support corporate accounting, marketing, and HR departments with routine administrative tasks and special projects

Qualifications

  • Proven administrative experience
  • Between 4-6 years of relevant experience
  • Highly motivated self-starter with a passion for optimizing workflows and enhancing office efficiency
  • Proficient in MS Office (Outlook, Word, Excel, Power Point, SharePoint) and Adobe Acrobat
  • Excellent time management skills and ability to multi-task and prioritize work
  • Outstanding written and verbal communication skills
  • Strong organizational and planning skills
  • High school diploma or equivalent; college degree preferred
  • Ability to work in-office full time (40 hrs./week) with occasional need for extended hours

Location

In-office position based in Irvine, California (92618).

Salary.com Estimation for Office Coordinator in Irvine, CA
$51,345 to $66,084
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