Sr. Field Geologist

Aerostar SES, LLC is expanding its workforce and is seeking a Senior Field Geologist to join our growing Environmental Business Line. We are committed to fostering a work environment that offers long-term stability and growth. We value our employees and are dedicated to supporting their success throughout their career with us. With a strong track record of consistent growth, we provide a secure and dependable workplace for those looking for a lasting career.
We are seeking a highly experienced Senior Field Geologist to lead large, complex environmental field investigations and remediation projects across multiple Department of Defense installations. This role is field-focused, requiring extensive travel and extended stays near project sites. The Senior Field Geologist will be responsible and take ownership for managing multi-disciplinary field teams, overseeing field operations, ensuring technical quality, and maintaining compliance with health, safety, and environmental regulations.
Aerostar SES, LLC offers a great benefits package complete with medical, dental, and vision insurance, health savings account health reimbursement account, flexible spending account, employer paid life and disability, 401(k) matching, and paid time off along with other essential benefits.
This position will report to our office location in Knoxville, TN.
Essential Duties & Responsibilities
The Essential Duties and Responsibilities are intended to present a descriptive list of the range of duties, but not all duties performed for this position. Other duties may be assigned.

• Plan, coordinate, and supervise large-scale field activities including soil, groundwater, surface water, sediment, and vapor investigations and remediation.
• Manage and mentor field staff, including junior geologists, field technicians, multiple on-site subcontractors, and drilling crews.
• Oversee daily site operations, ensuring compliance with work plans, health and safety plans, and regulatory requirements.
• Conduct real-time problem solving and adapt field strategies to meet evolving project conditions.
• Implement and enforce rigorous quality assurance/quality control (QA/QC) procedures in all field tasks.
• Maintain detailed and accurate field records; review and approve field logs, boring logs, sampling documentation, and daily field reports.

• Communicate clearly and regularly with project managers, clients, and regulators regarding project progress and site conditions.
• Support the development of project deliverables, including conceptual site models, investigation reports, and remediation design plans.
• Maintain strict compliance with company policies, client standards, and applicable federal, state, and local regulations.
• Coordinate field activities with on-base personnel or off-site private property owners for site access.
Minimum Qualifications:
To perform this position successfully, an individual must be able to perform each essential duty satisfactorily. The qualifications listed are representative of the knowledge, skill, and/or ability required.
• Bachelor’s degree (B.S.) in Geology, Hydrogeology, Environmental Science, or related field (Master’s preferred).
• Professional Geologist (PG) license required.
• Minimum 10-13 years of demonstrated progressive field experience with complex environmental projects.
• Strong leadership skills and experience managing field teams of varying sizes.
• Expert knowledge of drilling, sampling, well installation, environmental monitoring, and remediation technologies.
• Proven ability to handle dynamic field conditions and make technical decisions independently.
• Excellent communication, organizational, and problem-solving skills.
• Current 40-hour HAZWOPER certification (with up-to-date 8-hour refreshers).
• OSHA 8-hr Supervisor Training
• Ability to travel extensively (up to 80–90%), including on temporary assignments (up to 8 months), and work in various outdoor conditions.
Additional Qualifying Factors:
As a condition of employment, you will be required to pass a pre-employment drug screening (post accepted offer) and have acceptable background check results. If applicable to the contract, you must also obtain the appropriate clearance levels required and be able to obtain access to military installations.
Necessary Physical Requirements:
The physical demands described herein are representative of those that must be met by an employee to successfully perform the essential functions of this position. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.
This position requires the ability to maneuver around work sites, see, hear, and verbally communicate with co-workers and clients. Essential and marginal functions may require maintaining physical condition necessary for