
Senior Staff Engineer
Langan Engineering and Environmental Services, LLC
Denver, COFull-time$76–110K/yrPosted 2mo agoStill listed today
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At a glance
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Requirements
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Job overview
Langan is seeking a Senior Staff Environmental Permitting & Compliance Engineer or Scientist for its Denver team. The role focuses on environmental permitting and compliance across air, water, waste, and storage tanks, along with audits, monitoring plans, reporting, and field support. The engineer or scientist will also guide and review staff work, prepare technical deliverables, and interact with clients and senior management.
Skills & qualifications
Skills
Qualifications
Benefits
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 Senior Staff Environmental Permitting & Compliance Engineer or Scientist to join its collaborative team in Denver. This individual will serve a key function in providing performing air quality permitting, industrial wastewater and stormwater permitting, storage tank registration and compliance evaluations, waste management, multi-media environmental compliance audits, development of monitoring and spill prevention and contingency plans, greenhouse gas emission, sustainability programs and reporting, and report writing. In this role, you will have the opportunity to guide and review the work of staff, permit and plan preparations, and interact with clients and senior management.
Job Responsibilities
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Prepare permits and compliance programs for multiple environmental media, including air, wastewater, stormwater, waste, spill prevention and storage tanks, EPCRA (Tier II, TRI);
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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 modelling, and other air quality related tasks;
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Perform multi-media environmental compliance audits, gap assessments, inspections, and program reviews;
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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.);
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Prepare technical documents including reports, plans/programs, permit applications, and other written deliverables;
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Conduct field support at client sites including routine site inspections, collection of samples, and on-call support; and
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Perform other duties as requested.
Qualifications
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BS degree in Environmental, Chemical, other engineering, or science (Master’s degree preferred);
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4+ years of experience working with regulations and environmental permitting;
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Professional certification preferred;
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40-hour OSHA HAZWOPER certification;
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Willingness and ability to identify new client opportunities is strongly desired;
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Working knowledge of MS Word, Excel and other related software (Air Modeling Software, AERMOD, ProMax, a plus);
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Excellent written and verbal communication skills;
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Strong attention to detail with excellent analytical, multitasking, and judgment capabilities;
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Ability to effectively work independently and in a team environment;
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Availability to work Monday through Friday with occasional evenings and weekends; and
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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 $76,000—$110,000 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 1,549 open Environmental Engineer jobs on Olive Jobs, counted November 10, 2026.
- Pay
- This posting$76–110K/yr
- Colorado median$91–150K/yr82 salary ranges
- US median$91–160K/yr1,089 salary ranges
This range's midpoint, $93K, is 26% below the Colorado median midpoint ($126K) — in the middle half of Environmental Engineer salary ranges in Colorado.
- Openings
- Olive Jobs lists 86 open Environmental Engineer jobs in Colorado and 1,549 across the US. 1% of them nationwide are listed as remote or flexible.
- Hiring the most in Colorado
- Montrose Environment15 open
- CDM Smith14 open
- GHD Inc.13 open
- Experience
- This posting asks for at least 4 years of experience — less than three in four Environmental Engineer postings that state a minimum ask for (median 7 years, across 1,328 postings).
- Education
- This posting asks for a bachelor's degree; 952 of the 1,549 open Environmental 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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