Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Office Administrator (Temporary)

Trileaf Corporation

Job Description

Job Description

Trileaf Corporation is a nationwide environmental, architecture, and engineering consulting firm that assists clients with environmental due diligence, regulatory compliance, and engineering & architectural design. Trileaf serves the wireless communications, real estate, financial and petroleum industries from its headquarters in St. Louis, MO and 19 branch offices throughout the U.S.

We are currently looking to add a dynamic Office Administrator to our growing business. (This is a temporary assignment with the potential of becoming a regular position.)

Essential Job Functions:

  • Provide a welcoming environment while greeting visitors
  • Oversee daily operations to ensure a clean, functional and collaborative workspace
  • Manage office supplies, equipment, and vendor services to maintain availability and efficiency
  • Answer phone, route calls and take messages
  • Serve as the primary contact for building management and external vendors for maintenance and office-related needs
  • Provide occasional travel and meal coordination for management team
  • Assist in preparing documents, reports and presentations as needed
  • Support Accounting, with invoice tracking, correspondence, and scheduling
  • Update client information in accounting software
  • Support Activities Committee with office events, employee appreciation activities, and team-building initiatives
  • Manage company announcements and employee welcome notifications
  • Foster a welcoming and inclusive office culture to support team engagement
  • Support HR administrative duties as assigned
  • Maintain breakroom
  • Other duties as assigned

Basic Qualifications:

To be considered, the resume of the applicant must demonstrate the following qualifications/skills:

  • Proven experience as an Office Manager, Administrative Assistant, or similar role
  • Prior experience in clerical tasks, including electronic filing, data entry and record maintenance
  • Familiarity with basic accounting principles – Accounts Receivable, Accounts Payable, General Ledger
  • A proactive attitude and the ability to work independently
  • Attention to detail and problem-solving abilities.
  • Strong work ethic
  • Excellent written and oral communication skills
  • Strong client service skills with the ability to interact with all levels of management
  • Critical thinking and problem-solving skills
  • Ability to develop relationships with customers and team members
  • Proficient in using office software, such as Microsoft Office Suite.
  • Quick Books experience preferred

Education :

  • Associates degree or equivalent - preferred

Trileaf’s benefits include:

  • Health, Dental and Vision insurance
  • Short-term disability, Long-term disability and Life insurance - 100% Employer paid
  • 401k w/ match
  • 3 weeks of PTO per year
  • 8 paid holidays plus Floating Holiday

The listed salary range for this position is an expected range. The actual offer will be at the company's sole discretion and determined by relevant business considerations, including the final candidate's qualifications, years of experience, skillset, geographic location, and current market data.

All offers of employment are contingent upon the successful completion of a comprehensive background check, including criminal history, education verification, employment verification and drug test. This may also include credit and motor vehicle record checks depending on the position.

Trileaf Corporation is an Equal Opportunity. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, genetic disorder, disability, protected veteran status or any other characteristic protected by state, federal, or local law.

Vacancy posted 3 days ago
Similar jobs that could be interesting for youBased on the Office Administrator (Temporary) in Saint Louis, MO vacancy
  •  ...customers and we would be pleased to make you part of the mission. Here at Gulfeagle we are "Building a Career for YOU" Office Administrator Gulfeagle Supply is searching for a well-organized individual with strong administrative and interpersonal skills longing... 
    Temporary work
    For contractors
    Work at office
    Local area
    Monday to Friday
    Flexible hours

    Gulfeagle Supply

    Saint Louis, MO
    3 days ago
  • $45k - $60k

     ...for implementation of the company's strategic goals. Work with all levels of the organization to assist in a diverse array of administrative functions that contribute to efficient business flow and organizational growth. Tasks include but are not limited to: Data... 
    Suggested
    Work at office
    Flexible hours

    St Louis Wholesale Tire

    Saint Louis, MO
    3 days ago
  •  ...Overview The Office Administrator is responsible for overseeing and managing the operational/admin activities within a designated Division (currently one of 4). Responsibilities Hiring Support recruiters and Talent Manager when needed. Full cycle recruiting gatekeeper... 
    Suggested
    Work experience placement
    Work at office

    4M Building Solutions

    Saint Louis, MO
    2 days ago
  • $42k - $52k

     ...Position Summary The Office Administrator serves as the central operational and agent-support anchor of the office. This role ensures a welcoming, efficient, and high-functioning environment while supporting agents, facilitating CRM training, and maintaining office flow... 
    Suggested
    For contractors
    Work at office

    Red Key Realty

    Saint Louis, MO
    3 days ago
  • $19 - $27 per hour

     ...patient communication—all in a professional office setting with no direct patient contact....  ..., basic account maintenance, and administrative scheduling tasks Support team members...  ...benefits available for this temporary role may include the following:... 
    Temporary work
    Hourly pay
    Contract work
    Casual work
    Work at office
    Monday to Friday
    Weekday work

    TEKsystems

    Saint Louis, MO
    8 days ago
  •  ...performance reports reflecting all activities performed by CBP officers and Contractor staff. Schedule interview appointments in...  ...the U.S. Department of Education. Two (2) years of general administrative experience with customer interface. Two (2) years of... 
    Temporary work
    For contractors
    Work at office
    Local area
    Immediate start

    TeleSolv Consulting

    Saint Louis, MO
    5 days ago
  •  ...State Office Administrator Wound Pros Management Group is the nation's largest wound care management company, with a presence in 19 states and counting. Our mission is to facilitate the standardization of evaluating and treating chronic wounds in long-term care facilities... 
    Full time
    Work at office
    Monday to Thursday
    Flexible hours

    The Wound Pros

    Saint Louis, MO
    5 days ago
  •  ...Office Administrator Primary Functions: We are currently seeking a reliable and innovative office administrator to become a member of our team. The candidate must be an effective communicator with excellent people skills who will perform administrative duties such... 
    Work experience placement
    Work at office
    Flexible hours

    Professional Moving & Storage

    Saint Louis, MO
    2 days ago
  • The ideal candidate will be in charge of the organization and efficiency of daily office operations. From scheduling client meetings, to communicating between departments, you will be responsible for completing multi-level tasks in a professional and timely manner. Responsibilities... 
    Work at office
    Local area

    Confidential

    Saint Louis, MO
    5 days ago
  • $21 - $25 per hour

     ...Job Description Job Description OFFICE ADMINISTRATOR COMPENSATION: $21 - $25 per hour FLSA: Non-Exempt LOCATION: Various Locations CONTACT: ****@*****.*** or (***) ***-**** ext.1221 BENEFITS: Comprehensive package: single/family health, vision, dental... 
    Hourly pay
    Work at office

    NEIGHBORHOOD ASSISTANCE CORP. OF AMERICA

    Saint Louis, MO
    2 days ago
  • $18 per hour

    Our client, a leading organization in the industry, is seeking an Office Inventory Clerk to join their team. As an Office Inventory Clerk, you will be an essential part of the operations team supporting inventory management and office supplies coordination. The ideal candidate... 
    Temporary work
    Work at office
    Shift work

    Manpower Group (USA)

    Saint Louis, MO
    6 days ago
  •  ...Join our team as a Temporary Administrative Assistant! Are you organized, tech-comfortable, and looking for a flexible part-time role? We’re hiring...  ...Temporary Administrative Assistant to support hands-on office projects, including IT inventory tracking, document cleanup... 
    Temporary work
    Part time
    Work at office
    Flexible hours

    Novus Health

    Saint Louis, MO
    5 days ago
  • $145k - $165k

     ...minority-owned Fortune 500 company, has shaped the construction industry for more than 90 years. With over 35,000 employees and 400 offices nationwide, we provide flexibility and career growth in dynamic work environments.   Responsibilities: ESSENTIAL JOB... 
    Temporary work
    Daily paid
    Full time
    Contract work
    Work experience placement
    For subcontractor
    Work at office
    Local area
    Flexible hours
    Shift work

    MasTec Industrial

    Saint Louis, MO
    4 hours ago
  • $23 - $24 per hour

     ...Oral Health. This role provides direct administrative support to the Assistant Dean of Clinical...  ...in the day-to-day operations of the office. To be considered for the roles all canidates...  ...available for this temporary role may include the following:... 
    Temporary work
    Contract work
    Currently hiring
    Work at office
    Local area

    TEKsystems

    Saint Louis, MO
    5 days ago
  •  ...Front Office Desk Receptionist for a South County Doctor's Office (This is a temporary position during 7/15/26-9/15/26) We are hiring a friendly, organized Front Office Receptionist to join our medical practice. No medical experience required (preferred but not necessary... 
    Temporary work
    Interim role
    Work at office
    Local area
    Work from home

    Interim Healthcare Staffing

    Saint Louis, MO
    3 days ago
  •  ...of talent. The Job: We are searching for an entry-level  Office Assistant . This role will provide overall support for...  ...primary point of contact for building management Perform general administrative tasks for the office Provide high-level customer service and... 
    Full time
    Work at office

    Katapult Network

    Saint Louis, MO
    9 days ago
  • Office Manager / Staff Officer Level 4 TULK is a leading boutique consulting firm providing technology and management consulting services...  ...message. Your Duties Drafts and maintains internal administrative instructional and informational material for use in improving... 
    Temporary work
    Work at office
    Immediate start
    Flexible hours

    TULK | Swift·Wise·Counsel

    Saint Louis, MO
    4 days ago
  •  ...and files. # Maintain time records on all full and part time employees. # Provide student and registration information to the office of the Executive Dean for input on the campus computer system. # Prepare monthly time summaries for all programs. # Input attendance... 
    Full time
    Part time
    Work at office
    Shift work

    Lake Land College

    Saint Louis, MO
    1 day ago
  • A healthcare organization in St. Louis is looking for a Temporary Administrative Assistant to assist with IT inventory tracking, document cleanup...  ...process documents. Ideal candidates will have prior office experience, strong attention to detail, and basic Microsoft... 
    Temporary work
    Part time
    Work at office
    Flexible hours

    Novushealthstl

    Saint Louis, MO
    2 days ago
  • Trileaf Corporation seeks an Accounting Administrator in St. Louis, Missouri. This role involves managing office operations, supporting accounting functions, and creating a professional work environment. Candidates should have experience in office administration, strong... 
    Work at office

    Trileaf Corporation

    Saint Louis, MO
    2 days ago
  • $17 - $18 per hour

     ...Automotive Office Clerk The Automotive Office Clerk supports daily administrative operations by performing clerical tasks, maintaining records, and assisting with customer and internal service needs. This role helps ensure accurate documentation, efficient workflow,... 
    Hourly pay
    Full time
    Work at office
    Monday to Friday

    America's Auto Auction

    Saint Louis, MO
    3 days ago
  • $16 - $20 per hour

     ...Office Assistant Department: ONSITE-CLERICAL Job Status: Full-Time Days Worked: Mon., Tue., Wed., Thu., Fri. Rate of Pay: $16.00 - $20.00 Hourly Position Description Office Assistant M. Shapiro Real Estate Group Job Description... 
    Hourly pay
    Full time
    Work at office
    Local area

    M. Shapiro Real Estate Group

    Saint Louis, MO
    2 days ago
  •  ...potential members about membership, warehouse and credit programs. Assists members regarding item availability. Issues replacement and temporary cards, keys credit applications, and provides a high level of member service. Benefits Paid time off Health benefits (medical,... 
    Temporary work

    Elijahhouseliving

    Saint Louis, MO
    2 days ago
  •  ...Position Type: Secretarial/Clerical/Secretary - Seasonal Date Posted: 2/19/2026 Location: Jennings School District Central Office Closing Date: 07/01/2026 An Office Assistant is responsible for keeping the office supplied and organized. This involves... 
    Part time
    Seasonal work
    Work at office

    Jennings School District

    Saint Louis, MO
    3 days ago
  •  ...support the business and clinical needs of each supported dental office and foster a strong team building culture. As a Business...  ...s largest dental support organization, providing non‑clinical administrative support services to more than 3,000 supported doctors across 3... 
    Daily paid
    Work at office
    Local area

    Heartland Dental

    Saint Louis, MO
    2 days ago
  • $45k - $55k

     ...fastest-growing accounting firms in the country is seeking an Office Assistant who is motivated to learn, excited to collaborate and...  ...potential. In this role, you will provide clerical and administrative support to the Office Manager and Support staff. You will handle... 
    Work at office
    Remote work
    Flexible hours

    Anders DDS

    Saint Louis, MO
    4 days ago
  •  ...planning for the future, and are constantly looking for talented people to join our team. Job Description We are seeking an office assistant to with a passion for coffee. This position will help support our five cafe locations, along with wholesale customer... 
    Full time
    Work at office
    Local area
    Monday to Friday
    Weekend work

    Park Avenue Coffee

    Saint Louis, MO
    2 days ago
  •  ...: Mercy Hospital St. Louis- Cardiac Rehab 625 S New Ballas Rd Saint Louis, MO 63141 Licensure : Must have either a current RN Temporary Permit/RN license in the state where working in. Certifications : CPR required; other certifications required according to department... 
    Temporary work
    Part time

    Mercy

    Saint Louis, MO
    5 days ago
  • $49k - $53k

     ...the backbone of successful operations. As a leading provider of administrative and organizational services, we help companies streamline...  ...Description We are looking for a detail-oriented and dependable Office Clerk to support our administrative operations. The ideal... 
    Work at office

    Alphabe Insight Inc

    Saint Louis, MO
    1 day ago
  • $22 - $24 per hour

     ...Title: Summer Learning Academy Administrative Assistant (Elementary) DBM...  ...4/hr Employee Group: Temporary/Seasonal Prepared Date:...  ...Oversee the daily operations of the office, ensuring efficiency and effectiveness.... 
    Temporary work
    Summer work
    Seasonal work
    Work at office

    St. Louis Park Public Schools

    Saint Louis, MO
    3 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Office Administrator (Temporary). Be the first to apply!