Senior Project Hydrogeologist

Senior Project Hydrogeologist Langan Engineering and Environmental Services, LLC -

Seattle, WA Posted:

3/31/2026 -

Expires:

6/29/2026

Job ID:

293316120 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 40+ 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 Project Hydrogeologist to join its collaborative team in San Francisco, CA, Portland, OR, or Seattle, WA. This individual will serve a key function in managing hydrogeologic projects and clients throughout the country, with a focus on the west coast. This individual will have experience in analyzing physical and chemical subsurface data, performing hydrogeological studies, developing hydrogeologic conceptual site models, developing numerical groundwater flow and transport models, designing/managing/analyzing aquifer tests, conducting water resources evaluations and evaluating groundwater remediation alternatives. In this role, you will have the opportunity to work with a dynamic team of industry-renowned professionals in a variety of geographic areas and regulatory programs, and to collaborate and learn from our multi-disciplinary team of site/civil, geotechnical, survey, and landscape architect professionals on landmark land development projects. W e support lifelong learning, career progression, and engagement in outside professional organizations. Job Responsibilities

• Participate in the identification and pursuit of new clients, develop additional work within an existing project and attend business development meetings with new and existing clients;
• Provide direct oversight and management of junior staff for specific project assignments. Coach, train, and motivate staff assigned to environmental projects. Participate in interviewing and hiring staff;
• Supervise project managers tasked with coordinating and observing field activities and ensure correct interpretations of findings. Coordinate with staff to ensure that data collection and laboratory analyses are completed correctly, within budget, and on time;
• Manage and deliver on multiple projects and tasks within specific budgets, schedules, and deadlines;
• Manage environmental investigation and remediation projects with hydrogeologic focuses;
• Perform complex hydrogeological analyses for specific portions of broad engineering and environmental projects;
• Develop and use computational groundwater models to evaluate groundwater flow, and fate and transport of contaminants using graphical user interfaces such as GMS;
• Coordinate and manage junior staff to collect soil, soil vapor, indoor and ambient air, sediment, surface water, and groundwater samples; log soil boring lithology and install groundwater monitoring wells;
• Develop task and project budgets and schedule and perform task and project administrative activities, including preparing progress reports and reviewing project billings; To view the full job description, https://www.

aplitrak.com/?adid=YmJnZW5lcmljLjk2MjY4Ljg3NjlAbGFuZ2FuZW5naW5lZXJpbmdjb21wLmFwbGl0cmFrLmNvbQ">click here Job Summary Veteran Preference Company Details Company Langan Engineering and Environmental Services, LLC Industry Engineering Services Job Information Location Seattle, WA Job Type Full Time Employee Job Position 1 Position(s) Open Duration Over 150 Days Additional Information Reference Code 48114_1-8988 Federal Contractor No Affirmative Action Plan No