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Sr. Project Manager / Environmental Chemist


Warrington, PA, US, 18976-3653

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 30+ 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 embraces and promotes diversity, equity and inclusion; 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 Project Environmental Chemist / Manager to join its collaborative team Doylestown, PA. This individual will play a key role providing leadership and technical expertise in environmental data validation, becoming part of the leadership team behind Langan’s continuing growth. While the role is highly intrapreneurial, this individual will be provided robust resources for a successful integration and career with Langan.

Job Responsibilities

  • Interface with individuals across Langan as part of the Data Validation group’s leadership to help evaluate environmental laboratory analytical data for compliance with method and program/project QA/QC requirements following national and regional regulatory requirements and  Standard Operating Procedures (SOPs);
  • Help to grow, manage, and mentor our data validation group to support Langan’s Environmental Discipline;
  •  Establish and grow relationships with existing and potential clients, attending business development meetings with the goal of developing long-term client relationships;
  • Participate in the identification and pursuit of new clients with principals and associates. Prepare proposals, negotiate and secure contracts, and develop additional work on existing projects;
  • Review SOPs and analytical methods for correctness and applicability;
  • Complete and submit validation reports;
  • Maintain communications with Laboratories on requirements for data delivery;
  • Develop and utilize data validation tools in Excel, Access and SQL to identify data quality issues;
  • Provide technical leadership to field sampling teams and act as a liaison between the project staff, analytical laboratory and data management analysts; and
  • Research state and federal regulations necessary to manage action levels or clean-up criteria.



  • Bachelor’s degree in Chemistry, Biology, Physical Science or Engineering;
  • 15+ years of experience within environmental services, either analyzing samples for analytes or validating data in either a commercial or regulatory setting;
  • Strong understanding and experience in laboratory procedures and QA/QC processes;
  • Understanding of regulatory requirements and communication of these requirements amongst project teams;
  • Review and validate chemical data packages in accordance with state and federal guidance;
  • Knowledge of NYSDEC, NJDEP and PADEP regulations, a plus;
  • Development of project Work Plans and Quality Assurance Project Plans;
  • Develop and utilize data validation tools in Earthsoft EQuIS to identify data quality issues;
  • Experience using MS Excel or EQuIS to manipulate and organize data sets for import into a database and for final reporting;
  • Knowledge of NJ/NY Regulations, CERCLA and RCRA a plus;
  • Strong attention to detail with excellent analytical, judgment and problem solving capabilities;
  • High initiative, superior interpersonal skills and the ability to work with minimal supervision and to manage multiple tasks simultaneously;
  • Ability to work under pressure within tight schedules; and
  • Availability to occasionally travel to other offices.


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 an affirmative action / equal opportunity employer committed to building a team that represents and values diverse backgrounds. Langan promotes a positive work environment of inclusion, where we respect each other’s differences and recognize that a diverse, equitable and inclusive environment is a key to our success.