Project Engineer - Civil/Site Design

At Colliers Engineering & Design, we’re not just shaping land—we’re shaping the future. As a national, multidisciplinary engineering and design powerhouse, we bring cutting-edge solutions to complex challenges across the public and private sectors. Our culture thrives on innovation, collaboration, and the drive to deliver excellence at every turn.

Colliers Engineering & Design is seeking a Project Engineer to join its Civil/Site Land Development team in Phoenix, AZ. Whether you’re an experienced Project Engineer ready to make a greater impact or an emerging engineering talent eager to take the next step, we’re excited to talk with you about contributing to the success of our Civil/Site Land Development projects. With a rapidly growing presence in Arizona, our Phoenix office is a hub for high-impact civil and land development work. This is your chance to join a passionate team that’s building the communities of tomorrow—today.

This position is based in Phoenix, Arizona, with the option of office-based work in the West Valley (I-10 & 101) or Central Valley (E. Camelback Rd. & N 24th St.)

Join our Civil/Site team and build your career alongside the best our industry has to offer. Whether supporting a large industrial complex, commercial/residential development, or planning a mixed-use establishment in a business district, joining Colliers Engineering & Design will accelerate YOUR success!

• Review of municipal zoning and land development ordinances and applicable agency regulations to determine the property's land development limitations.
• Site Investigation and Due Diligence include reviewing ordinances, conducting utility service research, examining outside agency regulations, and conducting site visits to establish comprehensive development guidelines.
• Preparation of Concept Drawings based on the client’s development objectives and due diligence conclusions. This involves preparing a concept plan, including coordination with Design technicians.
• Leadership role in the review and design of Stormwater Management & Stormwater Conveyance Systems, including AutoCAD Civil 3D and Hydrology design software.
• Skills should include the preparation of pipe sizing calculations for stormwater conveyance systems, including drainage area maps.
• Surface runoff coefficients, invert, slope, velocity & hydraulic grade line evaluation using the Rational Method & Manning’s Equation.
• Knowledge of local stormwater management design regulations.
• Grading Design to ensure value engineering is achieved through earthwork analysis, and site safety is accomplished using appropriate design slopes.
• Subdivision and site plan design and layout.
• Design of Utility Systems, including public water and sewer mains, as well as provision of water and sanitary sewer services. This also involves determining and resolving any vertical and horizontal utility conflicts that may exist.
• Soil Erosion & Sediment Control Design, including stability calculations, Best Management Practices, swale design, spillway design, and determination of construction sequence.
• Prepare construction cost estimates based on site plan drawings as required for bonding and client purposes.
• Ability to work independently, as well as lead a team of other engineers.

• Bachelor’s Degree in Civil Engineering or related field.
• 4-7+ years of related experience.
• Engineer in Training required.
• Professional Engineer license (as required) preferred.
• Valid driver’s license preferred.
• Knowledge of the local municipal, county, and state land use, planning, and zoning processes and regulations.
• Ability to read, write, and understand English to comprehend written job-related communications, verbal instructions, and interactions.
• Proficiency in technical skills in stormwater management, hydraulics, hydrological analysis, grading, and other site development-related designs.
• Demonstrated Civil 3D skills with the ability to design site layouts concept through completion.
• Self-starter who can work independently and with team members.

t Colliers Engineering & Design, our people are our most important resource. That’s why we are committed to providing all our employees with a safe, comfortable work environment, potential for career advancement, and the ability to impact society through their projects as well as Company sponsored activities.

This dedication begins with supporting a work life balance through a generous compensation package that includes: company paid medical, dental, and vision coverage; paid pregnancy disability leave; short- and long-term disability insurance; life insurance; a company-matched 401(k)/Roth; paid time off that includes parental and military leave; employee referral and professional license bonuses and a straight time policy that compensates exempt employees for billable hours worked in excess of 40 billable hours within a work week.

We have also created an internal culture that provides the resources and technology needed to encourage personal and professional growth opportunities through reimbursement for education; a free in-house resource for hundreds of educational and self-enrichment courses; mentorship program; wellness program; Women’s Organization and ongoing philanthropic opportunities.

Apply today to learn how you can join our team of professionals, so we can help you Accelerate Your Success !

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