Water​/Wastewater Design Engineer

Company Overview

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Imagine a place committed to offering an unmatched employee experience. Where you work on projects that are meaningful to you. Where you play an active part in shaping your career journey. Where your co‑workers are invested in you and your success. Where you are encouraged and supported to do your very best and given the tools and resources to do so.

Where it’s a priority that the company takes good care of you and your family.

Our employees are the heart of our company. As an employer of choice, our goal is to provide a challenging, progressive and inclusive work environment which fosters personal leadership, career growth and development for every employee. We value passionate individuals who challenge the norm, deliver world‑class solutions and bring diverse perspectives. Join our team, and together we will make a difference and change the world.

At CDM Smith, you’ll work on meaningful water and wastewater projects that directly support community health, environmental stewardship, and sustainable infrastructure. Our Manchester team is seeking a mid‑level engineer ready to take ownership of technical work, collaborate with experienced professionals, and grow into increasing responsibility.

You will contribute to the planning, design, and delivery of water and wastewater infrastructure projects, including treatment facilities, pipelines, pump stations, water and sewer systems, and solid waste facilities.

• Under limited supervision, develop engineering designs of basic to moderate complexity for water and wastewater treatment facilities, water and sewer systems, pipelines, pump stations, remediation sites, and solid waste facilities.
• Review design documents and technical reports to ensure compliance with federal, state, and local regulations, as well as firm standards and best practices.
• Conduct site visits, field reviews, and technical studies to confirm design assumptions and location‑specific requirements.
• Update design criteria and technical requirements as project needs evolve.
• Perform water quality analyses and modeling to support planning and design decisions.
• Contribute to the firm’s Technical Knowledge Management (TKM) program by developing white papers, documenting innovative or specialized designs, and sharing lessons learned.
• Prepare and submit technical papers, design documentation, and presentations for publication in industry journals and forums.
• Collaborate with business development and sales teams to support proposals and responses to requests for proposal (RFPs).
• Review proposal content for technical accuracy, regulatory compliance, and alignment with industry best practices.
• Meet with current and prospective clients to understand project needs and support relationship development.
• Attend conferences, symposia, and industry events to support professional growth and increase visibility of the firm’s capabilities.
• Provide technical guidance, training, and mentorship to junior staff, supporting their development within the discipline and firm.
• May supervise and review the work of junior engineers on assigned projects.
• Perform other duties as needed to support successful project delivery.

• Bachelor's degree in Civil, Environmental or Chemical Engineering or related discipline.
• Certification as an Engineer in Training (EIT) or passing the Fundamentals of Engineering (FE) exam in states where an EIT is not obtainable (within 18 months of hire or promotion or transfer).
• 5 years of related experience.
• Domestic and/or international travel may be required.
• The frequency of travel is contingent on specific duties, responsibilities, and the essential functions of the position, which may vary depending on workload and project demands.
• Equivalent additional directly related experience will be considered in lieu of a degree.

• Experience presenting technical concepts to municipal clients through written reports and presentations.

• Proficiency with Computer‑Aided Design and Drafting (CADD)…