Principal Environmental Engineer

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Aerostar SES LLC (ASL) is seeking a talented Principal Environmental Engineer to join our ASL team. The Principal Environmental Engineer is a senior‑level technical leader responsible for directing complex environmental engineering projects, ensuring regulatory compliance, and providing strategic guidance to clients or internal teams. This role combines technical expertise, project management, and leadership to deliver sustainable, cost‑effective solutions across environmental remediation, permitting, impact assessment, and compliance programs.

We offer a great benefits package complete with medical, dental, vision, HSA, FSA, employer‑paid life and disability, 401(k) matching, and paid time off (PTO).

This is a HYBRID role that will report to our Jacksonville, FL office or our Knoxville, TN office, and 10% travel is required for projects.

Salary Range: $110,000‑150,000 annually, commensurate with experience.

• Lead the planning, design, and execution of complex environmental engineering projects.
• Oversee large‑scale, multidisciplinary projects from conception to completion, including budgeting, scheduling, risk management, and quality assurance.
• Provide technical guidance on environmental engineering issues and interpret environmental data results to make informed decisions.
• Environmental remedial technology evaluations, cost estimating, design drawings/specifications.
• Preparation of technical reports, specifications, and plans; data management and evaluation; and environmental assessment and remediation.
• Create and maintain comprehensive project documentation and develop a detailed project plan to track progress.
• Manage changes in project scope, schedule, and costs.
• Prepare engineering calculations, drawings, reports, and permit applications.
• Evaluate, design, and perform pilot tests for remediation systems.
• Design and prepare reports for remediation systems including, but not limited to, air sparging and soil vapor extraction.
• Manage and perform environmental construction activities such as trenching, piping, and site restoration.
• Mentor junior engineers and scientists, providing technical training and supporting professional development.
• Field oversight of remediation activities and subcontractors.

• Bachelor's degree in engineering discipline from an ABET-accredited school.
• Professional Engineer (PE) license in Florida or ability to gain reciprocity.
• 7+ years of experience in environmental remediation and consulting.
• Knowledge of environmental laws, regulations, and standards.
• Experience with the design, construction, and operation of remediation systems.
• Thorough understanding of remediation regulations critical to successful execution of federal and private remediation projects.
• Must have a valid U.S. driver’s license.
• As a condition of employment, you may be required to pass a pre‑employment drug screening and have acceptable references and background check results.

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 the physical condition necessary for bending, stooping, sitting, walking, or standing for prolonged periods of time; frequent opportunity to move about and to work outside the office environment for extended periods involving exposure to the elements with weather that will include extreme heat, cold, wind, rain or other inclement weather, walking over rough and uneven surfaces, and routine lifting of up to 35 pounds.

If required, must properly use personal protective equipment (PPE) at all times including but not limited to hard hats, steel‑toed boots, eye protection, respiratory protection, and hearing protection. Must maintain a constant state of mental alertness at all times. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

Job is performed in a combination of office and outdoor site locations. The office setting includes exposure…