Principal Engineer Civil

Key Responsibilities

• Lead delivery of stormwater management, flood control, and drainage infrastructure projects, including pump stations, storage systems, and conveyance networks
• Experience with H&H modeling using industry standard tools such as HEC-RAS, HEC-HMS, XP-SWMM, InfoWorks ICM, SWMM, and related platforms
• Direct floodplain analysis, watershed studies, and hydraulic system modeling across urban and riverine environments
• Lead permitting and compliance efforts, including: NJDEP Flood Hazard Area (NJAC 7:13), NJ Stormwater Rules (NJAC 7:8), Understanding of NYSDEC and PADEP regulatory processes preferred FEMA/NFIP coordination and floodplain considerations
• Serve as the primary liaison with regulatory agencies and stakeholders (NJDEP, FEMA, USACE, local authorities)
• Deliver complex programs such as: Flood mitigation and resilience projects (e.g., floodwalls, pump stations, drainage upgrades)
• Review and approve engineering designs, reports, specifications, and cost estimates
• Lead project execution, managing scope, schedule, budget, and risk
• Develop innovative, climate-resilient solutions, incorporating future rainfall and flood conditions
• Support business development through client engagement, proposals, and market growth initiatives
• Mentor and develop staff, strengthening capability in stormwater, modeling, and flood risk disciplines

Candidate Qualifications & Experience

• Bachelor’s or Master’s degree in Civil, Environmental, or Water Resources Engineering
• Licensed Professional Engineer (PE) (NJ required, NY, or PA preferred)
• Certified Floodplain Manager (CFM) preferred
• 15+ years of experience in stormwater, drainage, CSO and flood risk engineering
• Advanced experience in hydrologic and hydraulic modeling across complex systems
• Strong background in: Floodplain and floodway analysis, Stormwater management design (BMPs, green infrastructure, subsurface systems), Large-scale sewer and drainage network modeling, Delivery of major infrastructure and resilience projects, such as: Flood mitigation and post storm recovery programs (including FEMA-funded projects), Urban drainage and transportation-related stormwater systems, Deep understanding of NJDEP, NYSDEC, and PADEP requirements, Experience navigating multi-agency permitting and approvals, Familiarity with FEMA floodplain management and funding requirements
• Proven ability to lead complex, multidisciplinary projects
• Strong client-facing skills with public-sector stakeholders
• Ability to solve complex, non-routine engineering problems
• Willingness to travel to project sites and attend key meetings as required

Benefits & Reward

• Comprehensive benefit package that includes 401k, medical, dental and vision insurance, short-term/long-term disability, paid holidays, PTO, parental leave, and company paid life insurance
• Individual pay is determined based on several factors such as work location, education, experience, and unique skills
• The expected salary for this position is $145,000 - $177,000

Collaboration at Our Core

• Our hybrid approach centers on an in-office culture, with most of your time spent collaborating face-to-face and a minimum of three days per week in the office.
• We balance flexibility with connection, so you and your manager can choose how to meet client, team, and personal commitments.

About the Role

• Mott MacDonald is a leading global engineering, management, and development services firm, supporting multisector project work in over 150 countries.
• We are a network of 20,000+ talented consultants dedicated to delivering exceptional outcomes through our network of 20,000+ talented consultants.
• We are committed to sustainability and innovation in our sectors, including Buildings, Energy, Transportation, and Water.
• We empower our people to excel, learn, and grow, offering diverse opportunities to contribute to career-defining work.
• We are seeking an experienced Principal Engineer to lead the delivery and growth of stormwater and flood risk services across New Jersey, New York and Eastern Pennsylvania.