Office Coordinator

GSI Environmental Inc.; Irvine (CA); On-site; USD 48,000 - 62,000; Full time

Job summary

GSI Environmental Inc. in Irvine, California is seeking an Office Coordinator to provide essential administrative support and ensure smooth office operations.

You will greet visitors, manage calls and emails, assist with event planning, travel arrangements, and electronic file management, and format reports to align with GSI branding. The role requires 4–6 years of relevant experience, strong MS Office skills, and excellent written and verbal communication.

Qualifications

• Proven administrative experience supporting a busy office.
• Between 4–6 years of relevant experience.
• Excellent written and verbal communication skills.
• Ability to work in-office 40 hours/week with occasional extended hours.

Responsibilities

• Oversee front desk operations, greeting visitors and handling calls.
• Provide direct support to the Office Manager with administrative tasks.
• Assist with planning meetings, events, and client meetings.
• Assist with electronic file management and travel arrangements.
• Format reports and documents in Word/Excel per branding guidelines.
• Support accounting, marketing, and HR with routine tasks and projects.

Skills

Administrative experience

Communication skills

Time management

Organizational and planning skills

Multi-tasking and prioritization

Attention to detail

Education

High School Diploma or Equivalent

Tools

MS Office Suite (Outlook, Word, Excel, PowerPoint, SharePoint)

Adobe Acrobat

Job description

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).