Aerostar SES LLC (ASL) is seeking an accomplished Principal Environmental Engineer to join our growing team. This senior-level role provides technical leadership on complex environmental engineering projects, with responsibility for regulatory compliance, strategic planning, and high-level client or internal support. The Principal Environmental Engineer will blend deep technical expertise with project management and leadership skills to deliver sustainable, cost-effective solutions across environmental remediation, permitting, impact assessments, and compliance initiatives. ASL offers a comprehensive benefits package, including medical, dental, and vision coverage; HSA and FSA options; employer-paid life and disability insurance; 401(k) with company match; and generous paid time off (PTO). This is a HYBRID position in Jacksonville, Florida and 10% travel is required for projects. We are an equal-opportunity employer. All applicants will receive consideration for employment, without regard to race, color, religion, creed, national origin, gender, or gender identity, age, marital status, sexual orientation, veteran status, disability, pregnancy or parental status, or any other basis prohibited by law. We participate in the E-Verify Employment Verification Program. We are a drug-free workplace. Responsibilities: • 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 **** Qualifications: • Bachelor's degree in engineering discipline from an ABET accredited school. • Professional Engineer (PE) license in Florida • 5-10 years of experience in environmental remediation and consulting. • Knowledge of environmental laws, regulations, and standards. • Experience w/ 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. Compensation: $110,000 - $150,000 yearly

• 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