Trilon Group

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Administrative Assistant

Min Experience

3 years

Location

Cranberry Township, Pennsylvania, United States

JobType

part-time

About the job

Info This job is sourced from a job board

About the role

The Mannik & Smith Group, Inc. (MSG) is a people focused, award-winning, full-service consulting firm that offers a wide array of services including civil and geotechnical engineering, environmental consulting, planning, landscape architecture, agriculture, surveying and construction support. Our talented staff of more than 650+ professionals deliver integrated planning, design, engineering and construction solutions.

We are seeking a detail-oriented and proactive Administrative Assistant to support our Cranberry office. This role also provides administrative support to two nearby regional offices (approximately one hour away), with occasional travel required.

This position is ideal for someone who thrives in a fast-paced environment, enjoys staying organized, and takes pride in keeping office operations running smoothly.

What You’ll Do

  • Greet guests, employees, and clients professionally
  • Answer and direct phone calls; manage email, mail, and packages
  • Coordinate meetings (room scheduling, setup, agendas, minutes)
  • Prepare, proofread, and format letters, reports, and presentations
  • Maintain office files, records, and SharePoint resources
  • Support onboarding preparations for new hires
  • Arrange travel and assist with light accounting/project support
  • Order and manage office and kitchen supplies
  • Prepare outgoing shipments (USPS, UPS, FedEx, courier)
  • Assist with office events and general administrative support
  • Handle sensitive information with confidentiality

What You Bring

  • 3+ years of administrative experience
  • High school diploma or GED (higher education preferred)
  • Proficiency in Microsoft Office (Word, Excel, Outlook, PowerPoint) and SharePoint
  • Strong organization, time management, and attention to detail
  • Excellent written and verbal communication skills
  • Ability to work independently and prioritize effectively
  • AEC industry experience preferred
  • Deltek, Revit, or Adobe experience a plus

Benefits

  • 401(k) w/ company match
  • Health insurance w/ HSA option, Vision, Dental, Life
  • Flexible schedule
  • Paid time off
  • Referral program
  • Tuition reimbursement
  • Catalytic Coaching - Employees draft a development plan aimed at improving contributions in their current job and increasing the potential for other opportunities. MSG is all about bringing out the best in people at work!
It is the policy of our company to follow equal employment opportunity procedures in compliance with federal, state and local criteria. We will provide all applicants for employment, and all employees, with equal opportunity without regard to race, color, religion, national origin, age, sex, height, weight, marital status, arrest record, disability, pregnancy, sexual orientation, gender identity or expression, genetic information, military or veteran status, and/or any other protected classes covered by any local, state and federal laws.

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About the company

Trilon Group offers career paths, spanning technical, project management, business management, business development, and operations.

Skills

Microsoft Office
SharePoint
Deltek
Revit
Adobe