Langan
Project Environmental Engineer
Arlington, VA
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hirly's read of this role
- Seniority
- Mid level
- Stated salary
- $96,750 – $140,000 per year
- Country
- US
- Work mode
- Remote-friendly
- First seen by hirly
- 8 Oct 2026
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the posting
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 Environmental Engineer to join its collaborative team in Arlington, VA or Washington, DC. This individual will serve a key function in providing engineering and technical analysis for complex environmental projects, as well as managing/supervising field investigations, system installations, and other environmental projects. Project areas include, but are not limited to, industrial water/wastewater sampling and treatment; soil and groundwater sampling; oversight of laboratory and pilot studies; remediation investigation, design, implementation, and monitoring; and report/ proposal preparation. Experience with per- and polyfluorinated alkyl substances (PFAS) or chlorinated solvents is required. In this role, you will have the opportunity to manage diverse projects, solve problems, and overcome challenges in returning blighted properties to re-use, while protecting the environment.
Job Responsibilities
Develop and implement complex remediation and treatment approaches, including feasibility studies, cost estimates, oversight of lab testing, pilot testing, and full-scale application;
Perform complex analyses for specific portions of broader engineering and environmental projects;
Supervise field activities and ensure correct interpretation of findings;
Ensure that data collection and laboratory analyses are completed correctly, within budget, and on time;
Manage and deliver on multiple projects and tasks within specific budgets, schedules, and deadlines;
Effectively organize, write, and edit reports, draft proposals, and other documents;
Participate in the identification and pursuit of new clients and new work for existing clients. Attend business development meetings with new and existing clients;
Provide direct oversight and management of entry-level staff for specific project assignments. Coach, train, and motivate existing staff. Participate in interviewing and hiring staff;
Coordinate internal work groups within the same or different office locations and/or within the same or different disciplines on an as-needed basis;
Interface effectively and professionally with clients, contractors, subcontractors, staff, project personnel, supervisors, and others. Actively participate in internal and external technical presentations and produce written articles for internal and external publications; and
Perform other duties as requested.
Qualifications
Bachelor's degree in Civil Engineering, Environmental Engineering, Chemical Engineering or related engineering field; Master’s degree with environmental emphasis preferred;
PE licensure;
6-10 years of work-related experience;
Experience with or education on Per- and Polyfluoroalkyl Substances (PFAS) and/or chlorinated solvents required;
Understanding of federal and state environmental regulations;
Strong attention to detail with excellent analytical, multitasking, and judgment capabilities;
Strong technical writing skills;
Strong public speaking and verbal communication skills or potential to develop these skills;
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
Listed on hirly, a job board. hirly is not the employer: Langan is hiring for this role.
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