Administrative Assistant

The Mannik & Smith Group, Inc.

The Mannik & Smith Group, Inc.

Posted on Mar 10, 2026
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 in Hermitage and Waynesburg (approximately one hour away), with occasional travel required. This is a part-time, benefited position, that is expected to work 30 hours per week.

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.

Department
Civil/Municipal
Employment Type
Part Time
Location
Cranberry Township, PA
Workplace type
Onsite
Reporting To
Jennifer Cheslik

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 Mannik & Smith Group

As one of the premier multi-disciplined consulting firms, we work with an exclusive collection of some of the best and fastest growing private entities, municipalities and governmental agencies in the region, nation and around the globe.

Our Hiring Process

Stage 1:

Applied

Stage 2:

Initial Screening

Stage 3:

1st Interview

Stage 4:

Offer

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