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Salary
≈ $76k – $144k per year (Estimated)
Location
In office (Phoenix, Austin, Dallas, Fort Worth, Houston, San Antonio)
Seniority
Senior · 6+ years exp
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 24, 2026. First seen by Alion on Oct 20, 2026. Langan scores A on the Alion truth index.

Overview
Company
Impact
Profile match
Langan is a land development engineering and environmental consulting firm headquartered in Parsippany, New Jersey, offering site and civil, geotechnical, environmental, traffic, surveying, landscape architecture and digital solutions services. Founded in 1970, it works for major developers, renewable energy producers, healthcare systems, universities and large infrastructure programs from more than 50 offices, and ranks among Engineering News-Record's top 50 firms worldwide. Its board lists civil, geotechnical, traffic and environmental engineers, project managers, survey party chiefs, cultural resources technicians and a large intern and co-op program.

Langan provides expert land development engineering and environmental consulting services for major developers, renewable energy producers, energy companies, corporations, healthcare systems, colleges/universities, and large infrastructure programs throughout the U.S. and around the world. Our employees collaborate seamlessly among 50+ offices and gain valuable hands-on experience that fosters career growth. Langan culture is entrepreneurial from advancing innovative technical solutions, to participating in robust training and knowledge sharing, to making progressive change within the communities we live and work.

Consistently ranked among the top ten “Best Firms to Work For” and Engineering News-Record’s top 50 firms worldwide, Langan attracts and retains the best talent in the industry. Employees thrive at Langan, a firm that fosters an inclusive and supportive work environment for all; prioritizes wellbeing, health, and safety; encourages volunteerism and philanthropy; offers workplace flexibility, along with carbon-neutral office spaces; and empowers individuals to contribute their skills and knowledge to make impactful contributions.

 

Job Summary

Langan is seeking a Project Engineer/Manager - Water and Wastewater to support its growing national water practice. This individual will play a key role in supporting water strategy initiatives nationwide, including due diligence evaluations, water supply strategy development, source water assessments, discharge strategy development, water reuse planning, and water strategy permitting and compliance for mission critical, advanced manufacturing, and industrial clients across the United States.

Job Responsibilities

  • Support water due diligence efforts for data center developments, including source water availability assessments, utility coordination, capacity evaluations, and regulatory constraints analyses;
  • Develop and implement water sourcing strategies utilizing municipal supplies, groundwater, surface water, reclaimed water, and alternative water resources across diverse regulatory environments;
  • Evaluate and advance wastewater discharge strategies, including NPDES permitting, indirect discharge programs, land application, water reuse, collect and  haul, and emerging management approaches;
  • Coordinate with engineering teams on water and wastewater infrastructure planning, treatment system integration, conveyance requirements, and utility interface design;
  • Provide technical and regulatory guidance on water treatment, wastewater treatment, cooling water systems, industrial wastewater management, and water reuse applications;
  • Collaborate with utilities, municipalities, regulatory agencies, and client stakeholders to navigate complex water supply, wastewater, and permitting challenges;
  • Support water strategy development throughout the project lifecycle, from site selection and due diligence through permitting, construction, startup, and ongoing operations;
  • Provide regulatory oversight for Safe Drinking Water Act compliance programs for utilities and industrial clients;
  • Support national response efforts for Notices of Violation (NOVs), corrective actions, enforcement negotiations, and regulatory inspections at the local, state, and federal levels;
  • Support treatability studies, system upgrades, startup, retrofits, and optimization of drinking water and wastewater treatment systems;
  • Provide innovative engineering solutions to projects involving emerging contaminant treatment and control
  • Support proposal development, including scope preparation, fee development, teaming strategies, and project execution planning;
  • Manage project delivery, including scope, schedule, budget, invoicing, change management, and overall financial performance;
  • Coordinate multidisciplinary teams across multiple Langan offices to deliver integrated water, environmental, and infrastructure solutions;
  • Serve as a trusted technical advisor to clients, regulators, contractors, attorneys, and other project stakeholders; and
  • Collaborate effectively within multidisciplinary, multi-office teams supporting projects nationwide.

Qualifications

  • Bachelor's degree in Environmental, Chemical, or Civil Engineering, Environmental Science, or closely related field. Master’s degree preferred;
  • 6+ years of experience in the environmental field, with a minimum of 2 years working as a project manager in a consulting environment;
  • Professional certification or on track to obtain (e.g.: PE, CHMM);
  • Working knowledge of water/wastewater treatment technologies, and Federal and state environmental regulations and obligations related to water use and discharge;
  • Ability to effectively manage multiple clients, projects and staff;
  • Excellent written and verbal communication skills;
  • Strong attention to detail with excellent analytical, multitasking, and judgment capabilities;
  • Ability to effectively work independently and in a team environment; and,
  • Possess reliable transportation for client meetings and job site visits and a valid driver’s license in good standing.

Langan provides a rich array of programs and benefits to help its employees advance their careers and enhance the quality of their lives. Our comprehensive compensation package includes: full-time employment company paid medical, dental, and vision coverage; life insurance, short- and long-term disability insurance, and paid pregnancy disability leave; 401(k)/Roth with company match; paid time off including parental and military leave; employee referral and professional license bonuses; and educational reimbursement.

Langan offers employee resource groups; flexible work schedules; extensive training; wellness programs; buddy and mentoring programs; and much more!

Langan is committed to providing equal employment opportunities to all qualified applicants and employees, including individuals with disabilities and protected veterans. We believe that an inclusive workplace is essential for the well-being and success of our employees.

Please review our Applicant Privacy Notice at Collection to understand how we collect, use, and retain your personal information:   https://www.langan.com/langan-notice-at-collection

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