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Project Engineer/Manager - Water and Wastewater

Langan Engineering and Environmental Services, LLC

Bethlehem, PAFull-time$97–140K/yrPosted 2w agoStill listed today

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At a glance

Compensation
$97–140K/yr
Location
Bethlehem, PA
Schedule
Full-time
Work Authorization
Not specified

Olive lists jobs from US employers, including remote roles you can work from the United States.

Requirements

Credentials this posting asks for.

Bachelor's degree, requiredValid Driver's License, required

Job overview

Langan is seeking a Project Engineer/Manager to support its national water practice and water strategy initiatives for mission-critical, advanced manufacturing, and industrial clients. The role covers water supply and wastewater strategies, permitting and compliance, treatment systems, project delivery, and client advising. It also supports proposals and coordinates multidisciplinary teams across offices throughout the project lifecycle.

Skills & qualifications

RequiredNice to have

Skills

Water Due Diligence, nice to haveWater Sourcing Strategies, nice to haveWastewater Discharge Strategies, nice to haveWater Infrastructure Planning, nice to haveWater Treatment, requiredWastewater Treatment, requiredEnvironmental Regulations, requiredProject Management, requiredClient Management, requiredWritten Communication, requiredVerbal Communication, requiredAttention to Detail, requiredAnalytical Skills, requiredMultitasking, requiredJudgment, requiredIndependent Work, requiredTeamwork, required

Qualifications

Bachelor's in Environmental, Chemical, or Civil Engineering or Environmental Science, requiredMaster's Degree, nice to have6+ Years Environmental Experience, required2+ Years Project Manager Experience, requiredPE or CHMM Certification, nice to haveValid Driver's License, requiredReliable Transportation, required

Benefits

Medical Insurance
Dental Insurance
Vision Insurance
401(k) Match
Paid Time Off
Parental Leave
Tuition Assistance

Full job description

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. 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. 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 $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

How this job compares

Set against the 5,017 open Project Engineer jobs on Olive Jobs, counted November 10, 2026.

Pay
  • This posting$97–140K/yr
  • Pennsylvania median$90–130K/yr98 salary ranges
  • US median$96–145K/yr2,664 salary ranges

This range's midpoint, $118K, is 4% above the Pennsylvania median midpoint ($114K) — in the middle half of Project Engineer salary ranges in Pennsylvania.

Openings
Olive Jobs lists 253 open Project Engineer jobs in Pennsylvania and 5,017 across the US. 3% of them nationwide are listed as remote or flexible.
Hiring the most in Pennsylvania
Experience
This posting asks for at least 6 years of experience; Project Engineer postings that state a minimum ask for 5 years at the median (3,886 postings).
Education
This posting asks for a bachelor's degree; 3,041 of the 5,017 open Project Engineer jobs (61%) ask for a bachelor's degree or higher.

Counted across the open, public US postings on Olive Jobs on November 10, 2026. Pay medians are the middle values of the low ends and of the high ends of postings that list both ends of a range in the same cadence (a yearly salary or an hourly rate); a range's midpoint is halfway between its ends. Pay and experience figures resting on fewer than 20 postings are left out.

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