# Staff Engineer/Scientist – Environmental Permitting & Compliance at Langan Engineering & Environmental Services

> Manage and support multi-media environmental permitting and compliance programs for a wide variety of clients.

- Company: Langan Engineering & Environmental Services
- Location: Bethlehem, Pennsylvania, United States; Doylestown, PA; Philadelphia, PA; Princeton, NJ
- Places: Bethlehem, Doylestown, Philadelphia
- Posted: 2026-10-01
- Level: Staff
- Team: Environmental Permitting & Compliance
- Work mode: On site
- Apply: https://job-boards.greenhouse.io/langanengineeringandenvironmentalservicesllc/jobs/4425337009
- Page: https://ye.saranatour.dev/jobs/staff-engineer-scientist-environmental-permitting-compliance-langan-engineering-kn7cgeptpfk6ckfeynbgkepccn8hb9x2

## The posting

Staff Engineer/Scientist – Environmental Permitting & Compliance
Langan Engineering & Environmental Services · Bethlehem, Pennsylvania, United States; Doylestown, PA; Philadelphia, PA; Princeton, NJ

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.

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## Job Summary

Langan is seeking a **Staff Engineer/Scientist – Environmental Permitting & Compliance** to join its collaborative team in any of the following locations: Doylestown, Philadelphia, Bethlehem, PA or our office location in Princeton, NJ. This individual will serve a key function in supporting compliance projects anticipated to involve air permitting, industrial wastewater and stormwater permitting and planning, storage tank registrations, compliance evaluations, waste management, multi-media environmental compliance audits, development of spill prevention and contingency plans, greenhouse gas emission estimates and reporting, waste minimization planning and reporting, and technical report writing.

## Job Responsibilities

- Manage and support multi-media environmental permitting and compliance programs across air, water, wastewater, stormwater, waste, spill prevention, storage tanks, and EPCRA requirements;

- Provide regulatory interpretation and strategy, permitting, and compliance support for a wide variety of clients;

- Prepare and submit environmental permit applications, compliance reports, emissions inventories, and technical documentation to support regulatory obligations and operational objectives;

- Conduct environmental compliance audits, inspections, gap assessments, and program reviews to evaluate regulatory compliance and identify improvement opportunities;

- Develop and support implementation and management of various monitoring and spill prevention and contingency plans/programs (SPCC, FRP, SPR, SWPPP, Hazardous Waste Contingency Plans, TOMP, Slug Control, etc.);

- Provide field support, site assessments, sampling, and technical assistance for ongoing client operations and environmental projects;

- Provide support for air projects, focusing on emissions calculations, permit preparation, NESHAP/NSPS compliance, annual reporting (Title V, GHG, etc.), emissions monitoring, stationary and mobile source air modeling, and other air quality related tasks;

- Provide regulatory strategy, permitting, and compliance support for water resources programs nationwide, including