Civil/Site Senior Project Engineer

Position Overview

Colliers Engineering & Design is seeking a Sr. Project Engineer for our Civil/Site team in Philadelphia, Pennsylvania. In this role, you will utilize leadership and engineering expertise to perform design tasks—including grading, drainage, and stormwater management—as well as manage support staff. You will work with AutoCAD and relevant design software to complete projects within budget, deadlines, and agency regulations. Join our team and build your career through impactful projects ranging from large warehousing complexes to mixed-use urban developments.

Key Responsibilities

• Review municipal zoning, land development ordinances, and agency regulations to determine project limitations.
• Conduct site investigation and due diligence, including utility service research and site visits.
• Prepare concept drawings based on client development objectives, coordinating with AutoCAD draftsmen.
• Lead the design and review of stormwater management and conveyance systems using AutoCAD Civil 3D and hydrology design software.
• Perform pipe sizing calculations for stormwater conveyance systems and evaluate drainage parameters using methods such as the Rational Method and Manning’s Equation.
• Apply knowledge of PA county, SCD, and municipal stormwater management regulations.
• Develop grading designs to achieve value engineering and ensure site safety.
• Design subdivision and site plan layouts, along with utility systems including sanitary sewer, pump stations, and other services.
• Develop soil erosion and sediment control designs that include stability calculations, Best Management Practices, and swale/spillway designs.
• Prepare construction cost estimates based on site plan drawings for bonding and client purposes.
• Work independently and lead a team of engineers.

Required Qualifications

• Bachelor's Degree in Civil Engineering.
• 8-12 years of experience in residential and/or commercial civil land development.
• PE preferred.
• Familiarity with local municipal, county, and state land use, planning, and zoning regulations (PA).
• Excellent verbal, written, and interpersonal communication skills.
• Proficiency in stormwater management, hydraulics, hydrological analysis, grading, and site development design.
• Demonstrated expertise in AutoCAD Civil 3D from conceptual design through project completion.
• Self-starter with the ability to work both independently and collaboratively.
• Strong command of English for effective communication.

Benefits & Perks

• Generous Compensation package including company-paid medical, dental, and vision coverage.
• Paid pregnancy disability leave; short- and long-term disability insurance; life insurance; and a company-matched 401(k)/Roth.
• Paid time off including parental and military leave; employee referral and professional license bonuses; and a straight time policy compensating for billable hours beyond 40 per week.
• Opportunities for professional growth with education reimbursement, free in-house courses, mentorship, a wellness program, a Women’s Organization, and philanthropic initiatives.