
Part-Time On-Call Staff Environmental Engineer, Scientist, or Geologist
Part-timeLangan Engineering and Environmental Services, LLC
Irvine, CAPart-time / Per Diem$32–37/hrPosted 2w agoStill listed today
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At a glance
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Requirements
Credentials this posting asks for.
Job overview
Langan is seeking a part-time, on-call Staff Environmental Engineer, Scientist, or Geologist for its Southern California team. The role supports site exploration, contaminated-site investigation and remediation, sampling, vapor intrusion work, data evaluation, and report preparation. The employee will work on a diverse portfolio of environmental projects and collaborate with industry leadership in a continuous learning environment.
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 Part-Time On-Call Staff Environmental Engineer, Scientist, or Geologist to join its collaborative team in Southern California. This individual will serve a key function in providing site exploration activities including, but not limited to contaminated site investigation and remediation work; soil and groundwater sampling; vapor intrusion investigation; remedial investigation, design, implementation, and monitoring; pilot tests; data management, processing, and evaluation; and report preparation. In this role, you will have the opportunity to work with top industry leadership on a complex and diverse portfolio of environmental projects in a continuous learning environment.
Job Responsibilities
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Perform field inspections and environmental investigations;
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Perform air, soil, gas, groundwater sampling and remediation of contaminated properties;
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Assist with the planning and execution of field investigations by logging borings, collecting samples, performing field tests, and collecting and recording data. Perform routine and special calculations;
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Field oversight of remediation activities and subcontractors, ensuring compliance with job specifications;
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Identify and implement solutions to both routine and more complex field and/or laboratory problems and accurately document results; Communicate with supervisor on any problems encountered on project sites;
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Assist with the preparation of technical reports, specifications, and plans; data management and evaluation; and environmental assessment and remediation; and
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Perform other duties as requested.
Qualifications
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Bachelor's degree in Environmental Engineering, Environmental Science, Geology, or a related field;
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Minimum GPA of 3.0;
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1+ years of work-related experience;
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Prior relevant internship or professional work experience preferred;
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Applicants with an engineering degree are preferred to have EIT Certification, or current registration for FE exam;
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Strong technical education, professional demeanor, and desire to learn;
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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 overtime as needed; and
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Travel may be required based on business needs and project assignments. Travel requirements may vary by position and may change based on business needs.
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 $32—$37 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$32–37/hr
- US median$34–42/hr74 hourly ranges
This range's midpoint, $34.50/hr, is 9% below the US median midpoint ($38/hr) — in the lowest quarter of Environmental Engineer hourly ranges across the US.
- Openings
- Olive Jobs lists 98 open Environmental Engineer jobs in California and 1,549 across the US. 1% of them nationwide are listed as remote or flexible.
- Experience
- This posting asks for at least 1 year 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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