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Principal Wastewater Engineer

T&M Associates
Middletown, NJ Full Time
POSTED ON 4/7/2026
AVAILABLE BEFORE 6/7/2026

T&M Associates is seeking a highly skilled and experienced Water Engineer to join our dynamic team! In this position, you will be responsible for overseeing and executing projects related to wastewater treatment, hydraulic design, and regulatory compliance. This role requires extensive experience in wastewater characterization, treatment process improvement, and engineering design. The ideal candidate will have a strong background in industrial wastewater treatment, excellent communication skills, and the ability to work collaboratively with clients and technical experts.

Key Responsibilities:

  • Perform comprehensive wastewater characterizations based on industrial practices, processes, and regulatory requirements.
  • Identify and evaluate potential improvements in treatment processes and equipment to enhance performance and efficiency.
  • Conduct wastewater treatment process calculations and assist in process modeling to properly size and configure treatment processes.
  • Perform hydraulic calculations and develop system head curves for designing pumping systems.
  • Conduct cost-benefit analyses for projects to ensure economic feasibility and optimal resource allocation.
  • Design layouts and specifications for treatment system improvements, including equipment, pumps, piping, tanks, chemical feed systems, and process monitoring and control systems in collaboration with technical experts and other design disciplines.
  • Evaluate and ensure compliance with regulatory requirements; prepare and submit regulatory permit applications as needed.
  • Assist in construction-related activities including reviewing shop drawings and submittals, responding to RFIs (Requests for Information), preparing RFPs (Requests for Proposals), tracking project progress, reviewing contractor pay applications, and advising the owner on discrepancies and changes.

Requirements:

  • Bachelor’s Degree in Civil or Environmental Engineering from an ABET-accredited university is required.
  • Professional Engineers (PE) License is required.
  • 8 years of engineering experience in the water and/or wastewater disciplines, with specific expertise in industrial wastewater treatment design.
  • In-depth knowledge of local, state, regional, and federal regulatory requirements related to water and wastewater.
  • Excellent written and verbal communication skills; strong problem-solving and operational skills. 
  • Client coordination and collaboration experience are essential.
  • Willingness to travel up to 25% of the time, including occasional overnight stays.

T&M Associates is committed to pay transparency and equitable compensation practices in compliance with applicable laws, including the New Jersey Equal Pay Act. T&M estimates that the salary range for this position will fall between $110,000 - $140,000The actual salary offered may vary within this range, depending on a variety of factors including the candidate’s experience, educational qualifications, specific skills and knowledge, as well as internal pay equity and geographic location.

T&M Associates offers a competitive and comprehensive benefits package designed to support the health, well-being, and professional growth of our employees. Benefits include comprehensive insurance (medical, dental and vision), a 401(k) with company match, paid time off, flexible work schedules, wellness programs, and professional development opportunities — all within a people-first, award-winning hybrid work environment. See more details about benefits here.

If this sounds like a company you want to be part of then apply now!

New Hires must have documents indicating they are eligible to work in the United States. EEO/AA Employer.

For California based applicants, our CCPA-CRPA Privacy Notice can be found on our Careers page at www.tandmassociates.com

 

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Salary : $110,000 - $140,000

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