Accounting Administrator

Full Time Clerical St. Louis, MO, US

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

Job Summary: Trileaf is seeking a Accounting Administrator to assist our with accounting and administrative tasks. This position is based in our St. Louis, Missouri office and will require on-site work.

Key Responsibilities:

• Create a welcoming and professional environment by greeting visitors and managing front office interactions
• Oversee daily office operations to ensure a clean, organized, and collaborative workspace
• Manage office supplies, equipment, and vendor services to maintain efficiency and availability
• Answer and route incoming calls; take and relay messages as needed
• Act as the primary liaison with building management and external vendors for maintenance and office needs
• Coordinate occasional travel arrangements and meals for the management team
• Assist with preparation of documents, reports, and presentations
• Support accounting functions, including data entry, invoice tracking, and vendor communication
• Maintain and update client information in accounting systems
• Support employee engagement initiatives, including office events and team‑building activities
• Manage company announcements and employee onboarding communications
• Assist with HR administrative tasks as assigned
• Maintain shared spaces such as the breakroom
• Take on additional responsibilities as needed, with opportunities for growth

Basic Qualifications:

• Proven experience as an Office Administrator, Administrative Assistant, or similar role
• Experience with clerical tasks such as data entry, electronic filing, and record‑keeping
• Basic understanding of accounting principles (Accounts Payable/Receivable, General Ledger)
• Strong organizational skills and attention to detail
• Ability to work independently and take initiative
• Excellent written and verbal communication skills
• Strong interpersonal and client service skills
• Problem‑solving and critical thinking abilities
• Proficiency in Microsoft Office (Word, Excel, Outlook)
• Experience with Quick Books or similar accounting software preferred

Preferred Qualifications /

Experience:

• Previous experience in administrative or office support roles
• Exposure to entry‑level accounting tasks
• Competitive hourly pay

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.

Trileaf Corporation is an equal opportunity employer that recognizes the value of diversity and inclusion in the workplace. We prohibit discrimination and harassment of any kind based on race, color, sex, age, religion, sexual orientation, national origin, disability, genetic information, pregnancy, or any other protected characteristic as outlined by federal, state, and local laws in jurisdictions where we operate.