Demo

Senior Staff Scientist or Engineer

Langan Engineering & Environmental Services
Princeton, NJ Full Time
POSTED ON 12/28/2025
AVAILABLE BEFORE 2/21/2026
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 Scientist, Geologist, or Engineer to join its collaborative team in Princeton, NJ. This individual will serve a key function in providing integrated engineering support for land development projects. This may include, but is not limited to, initial site assessments; conducting field tests (civil, environmental, geotechnical and/or natural resources); monitoring construction sites; compiling data and preparing reports; and participation in client meetings. In this role, you will have the opportunity to work on diverse projects, solve problems across Langan's disciplines, and overcome challenges in restoring the environment and returning blighted properties to productive re-use while protecting and enhancing the environment. The position encourages learning, growth, creativity, flexibility, and collaboration in a team environment.

Job Responsibilities

  • Assist with the planning and execution of field investigations by performing field tests, collecting samples, collecting and recording data, and performing routine calculations;
  • Monitor complex construction projects by taking various tests to evaluate whether contractor or subcontractor has complied with job specifications;
  • Collect soil, soil vapor, indoor and ambient air, sediment, surface water, and groundwater samples;
  • Assist with acquisition of and compliance with regulatory agency permits to support site investigation and remediation;
  • Review and interpret environmental, geological, and historical records to support environmental due diligence;
  • Prepare a variety of standard logs and field forms (such as drilling logs, field investigation dailies, and chain of custody logs);
  • Identify and implement solutions to both routine and more complex field problems and document them accurately, keeping project manager informed or problems encountered during work assignments;
  • Lead tasks associated with the preparation and modification of various engineering documents including reports, specifications, plans, cost estimates and designs for projects;
  • Collaborate with interdisciplinary team to prepare integrated solutions to clients;
  • Perform and manage tasks within specific budgets and schedules. May track task and project budgets;
  • Interact in a professional manner with client and subcontractor representatives in close collaboration with supervisor;
  • Supervise or coordinate the work of staff engineers, interns and others who assist in specific assignments as needed; and
  • Perform other duties as requested.


Qualifications

  • Bachelor’s degree in Environmental Science, Environmental Engineering, Geology or has relevant job experience;
  • 4 years of related experience in due diligence, contaminated sites investigation, construction oversight, and has collaborated with professionals in engineering feasibility studies, remedial system design and implementation;
  • For engineers, possession of a valid Professional licensure or ability to obtain within one year;
  • Experience conducting Phase I, II and III environmental site assessment including drilling observation, sampling, well installation, construction/remediation oversight;
  • Experience providing litigation support services for expert witness projects, or similar;
  • In-depth knowledge and understanding of state and federal environmental regulations (including CERCLA and RCRA);
  • Experience working with state regulatory agencies;
  • 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;
  • Availability to work overtime as needed; 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. The estimated range for this role is: $72,000 - $104,000. 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.

Salary : $72,000 - $104,000

If your compensation planning software is too rigid to deploy winning incentive strategies, it’s time to find an adaptable solution. Compensation Planning
Enhance your organization's compensation strategy with salary data sets that HR and team managers can use to pay your staff right. Surveys & Data Sets

What is the career path for a Senior Staff Scientist or Engineer?

Sign up to receive alerts about other jobs on the Senior Staff Scientist or Engineer career path by checking the boxes next to the positions that interest you.
Income Estimation: 
$116,765 - $144,626
Income Estimation: 
$142,836 - $179,016
Income Estimation: 
$87,704 - $110,366
Income Estimation: 
$120,989 - $162,093
Income Estimation: 
$74,806 - $91,633
Income Estimation: 
$71,928 - $87,026
Income Estimation: 
$145,337 - $174,569
Income Estimation: 
$112,363 - $146,135
Income Estimation: 
$153,127 - $203,425
Income Estimation: 
$139,626 - $193,276
Income Estimation: 
$164,650 - $211,440
Income Estimation: 
$130,030 - $173,363
Income Estimation: 
$151,423 - $191,781
Income Estimation: 
$224,177 - $300,651
Income Estimation: 
$213,290 - $266,052
Income Estimation: 
$225,010 - $318,974
Income Estimation: 
$182,205 - $244,055
Income Estimation: 
$72,001 - $91,803
Income Estimation: 
$88,975 - $120,741
Income Estimation: 
$68,121 - $81,836
Income Estimation: 
$71,928 - $87,026
Income Estimation: 
$125,958 - $157,570
View Core, Job Family, and Industry Job Skills and Competency Data for more than 15,000 Job Titles Skills Library

Job openings at Langan Engineering & Environmental Services

  • Langan Engineering & Environmental Services Reno, NV
  • Langan provides expert Civil, Geotechnical, Traffic and Geo-Environmental engineering consulting services for major developers, renewable energy producers,... more
  • 13 Days Ago

  • Langan Engineering & Environmental Services Bellevue, WA
  • Langan provides expert land development engineering and environmental consulting services for major developers, renewable energy producers, energy companie... more
  • 13 Days Ago

  • Langan Engineering & Environmental Services Detroit, MI
  • Langan provides expert land development engineering and environmental consulting services for major developers, renewable energy producers, energy companie... more
  • 13 Days Ago

  • Langan Engineering & Environmental Services Canonsburg, PA
  • Langan provides expert land development engineering and environmental consulting services for major developers, renewable energy producers, energy companie... more
  • 13 Days Ago


Not the job you're looking for? Here are some other Senior Staff Scientist or Engineer jobs in the Princeton, NJ area that may be a better fit.

  • Haley & Aldrich Princeton, NJ
  • Find your path and enjoy the journey at Haley & Aldrich! With us, you’ll tackle clients’ most meaningful challenges in the built and natural environments –... more
  • 21 Days Ago

  • Haley & Aldrich Holicong, PA
  • Find your path and enjoy the journey at Haley & Aldrich! With us, you’ll tackle clients’ most meaningful challenges in the built and natural environments –... more
  • 21 Days Ago

AI Assistant is available now!

Feel free to start your new journey!