Project Engineer/Manager - Water and Wastewater
- Salary
- $96,750 - $140,000
- Level
- Lead
Not stated in the posting: work type, visa.
Open. First seen 22 October 2026.
About the role
Langan Engineering & Environmental Services's standard text
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 Engineering & Environmental Services's standard text
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.
Certain US jurisdictions require Langan to include an estimate of salary or hourly ranges. Actual compensation may vary based on factors such as related work experience, location, market conditions, education/training, certifications and other credentials, as well as applicable knowledge and skills. Certain roles may be eligible for overtime and participation in the firm's annual bonus and performance review program.
Langan Engineering & Environmental Services's standard text
Bonuses are discretionary and based on individual job performance and the profitability of the firm. Employees are also eligible to receive up to 20 days of paid vacation time, 10 days of paid sick time and 10 paid holidays throughout the year. Eligibility and actual paid time off may vary based on local law and factors such as hours worked, related work experience and level.
Pay Range
Langan Engineering & Environmental Services's standard text
$96,750—$140,000 USD
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
What this role asks for
67% of this description is written for the role. The rest is Langan Engineering & Environmental Services's standard text, folded away below.
Compared with Langan Engineering & Environmental Services's other open jobs.
The team: Environmental HIRES STEADILY
This role is one of 77 open in Environmental. 19 were posted in the last 30 days and the oldest in June: a team that hires all year rather than one being built.
WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS
Git (4 of 77), Excel (3 of 77)
OTHER ROLES ON THIS TEAM
- Senior Project Manager – Environmental posted Oct 22
- Part-Time On-Call Staff Environmental Engineer, Scientist, or Geologist posted Oct 22
- Project Engineer/Manager – Water and Wastewater posted Oct 22
- Project Engineer/Manager - Water and Wastewater posted Oct 22
- Project Engineer/Manager - Water and Wastewater posted Oct 22
- Senior Project Manager – Environmental posted Oct 22
- Project Environmental Engineer, Scientist, Geologist / Project Manager posted Oct 22
- Project Engineer/Manager - Water and Wastewater posted Oct 20
- Senior Staff Environmental Engineer, Scientist, or Geologist posted Oct 20
- Senior Staff Environmental Engineer, Scientist or Geologist posted Oct 15
- Senior Staff Environmental Engineer, Scientist, or Geologist posted Oct 12
- Project Environmental Engineer posted Oct 8
- Entry-Level Environmental Engineer, Scientist or Geologist posted Oct 6
- Senior Project Engineer/Manager – Mission Critical Water and Wastewater posted Oct 6
- Project Environmental Engineer, Scientist, Geologist / Project Manager posted Oct 2
- Staff Engineer/Scientist – Environmental Permitting & Compliance posted Oct 1
- Entry-Level Environmental Engineer or Geologist posted Sep 30
- Entry-Level Environmental Engineer or Geologist posted Sep 28
- Environmental Engineer, Scientist, or Geologist - Entry Level posted Sep 18
- Intern/Co-op - Environmental Engineer (Summer 2027) posted Sep 16
- Intern/Co-op - Environmental Engineering (Summer 2027) posted Sep 16
- Entry-Level Environmental Engineer, Scientist or Geologist posted Sep 15
- Entry-Level Environmental Engineer or Geologist posted Sep 15
- Entry-Level Environmental Engineer or Geologist posted Sep 15
- Entry-Level Environmental Engineer, Scientist or Geologist posted Sep 10
- Senior Staff Engineer posted Sep 3
- Staff Environmental Engineer, Scientist, or Geologist posted Sep 3
- Senior Staff Engineer, Scientist, or Geologist posted Sep 3
- Senior Project Environmental Engineer, Scientist, or Geologist posted Sep 3
- Senior Environmental Project Manager – Power Generation & Transmission posted Aug 21
- Senior Environmental Project Manager – Power Generation & Transmission posted Aug 20
- Senior Staff Environmental Engineer, Scientist or Geologist posted Aug 6
- Staff Environmental Engineer, Scientist, or Geologist posted Jul 23
- Senior Environmental Project Manager – Power Generation & Transmission posted Jul 23
- Project Geologist, Engineer, or Scientist - Environmental Permitting & Compliance posted Jul 23
- Environmental Permitting and Compliance Engineer or Scientist posted Jul 23
- Senior Project Manager- Environmental posted Jul 16
- Senior Staff Environmental Engineer, Scientist, or Geologist posted Jul 13
- Project Environmental Engineer, Scientist, Geologist / Project Manager posted Jul 9
- Senior Project Manager - Environmental Planning posted Jul 6
- Project Manager - Environmental posted Jul 2
- Entry-Level Environmental Engineer, Scientist or Geologist posted Jul 2
- Entry-Level Environmental Engineer posted Jul 2
- Project Environmental Permitting & Compliance Engineer or Scientist / Project Manager posted Jul 1
- Senior Staff Environmental Engineer, Scientist, Geologist, or Hydrogeologist posted Jul 1
- Senior Project Manager - Environmental posted Jul 1
- Senior Project Manager - Environmental posted Jul 1
- Senior Project Manager - Environmental posted Jul 1
- Senior Project Manager - Environmental posted Jul 1
- Senior Project Manager - Environmental posted Jul 1
- Project Environmental Permitting & Compliance Engineer or Scientist / Project Manager posted Jul 1
- Project Environmental Permitting & Compliance Engineer or Scientist / Project Manager posted Jul 1
- Environmental Project Manager posted Jul 1
- Project Engineer/Manager - Environmental Permitting & Compliance posted Jul 1
- Project Environmental Permitting & Compliance Engineer or Scientist / Project Manager posted Jul 1
- Project Environmental Permitting & Compliance Engineer or Scientist / Project Manager posted Jul 1
- Project Environmental Permitting & Compliance Engineer or Scientist / Project Manager posted Jul 1
- Project Scientist/Engineer – Air Quality posted Jul 1
- Industrial Health & Safety Project Manager posted Jul 1
- Senior Project Manager - Environmental posted Jul 1
- Senior Staff Environmental Engineer, Scientist or Geologist - Environmental posted Jul 1
- Senior Staff Environmental Engineer, Scientist or Geologist posted Jul 1
- Senior Project Manager - Environmental posted Jul 1
- Senior Project Manager - Environmental posted Jul 1
- Project Environmental Scientist, Geologist, Engineer or Hydrogeologist posted Jul 1
- Project Environmental Engineer, Scientist, Geologist / Project Manager posted Jul 1
- Project Environmental Engineer, Scientist, Geologist / Project Manager posted Jul 1
- Project Environmental Engineer, Scientist, Geologist / Project Manager posted Jul 1
- Project Environmental Engineer / Project Manager posted Jul 1
- Project Environmental Engineer posted Jul 1
- Senior Environmental Engineer posted Jul 1
- Entry-Level Environmental Engineer, Scientist, or Geologist posted Jul 1
- Entry-Level Environmental Engineer, Scientist or Geologist posted Jul 1
- Practice Leader - Civil Engineering posted Jul 1
- Senior Project Manager - Environmental posted Jun 22
- Project Environmental Engineer, Scientist, Geologist / Project Manager posted Jun 22
From the team and dates on Langan Engineering & Environmental Services's own job board.
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