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Job Description
Overview Longenecker & Associates (L&A), a Geosyntec Company, is a trusted partner enabling critical missions across the U.S. Department of Energy (DOE) complex for more than 30 years. We contribute to DOE's nuclear security and environmental remediation enterprise by providing the highest-caliber staff and experts. We are seeking a motivated Principal Technical Advisor in Aiken, SC. The Principal Technical Advisor provides senior-level technical leadership and strategic guidance on complex, high-impact issues affecting program operations, compliance, and organizational performance. This role serves as a subject matter expert in Nuclear Material Control and Accountability (NMC&A) and plays a key role in defining technical direction, resolving critical challenges, and supporting long-term program success. Geosyntec is an innovative, international engineering and consulting firm serving private and public-sector clients to address new ventures and complex problems involving our environment, natural resources, and civil infrastructure. Our engineers, scientists, technical and project employees serve our clients from offices across the world. Ranked by ENR as one of the top environmental engineering design firms, Geosyntec is internationally known for its technical leadership, broad experience, and exceptional client service. We invest in our people. Each employee is unique, and your career at Geosyntec will be too. We offer competitive pay and benefits, and well-being programs to support you and your family.
To Learn More Visit:
http://www.geosyntec.com/careers/. Essential Duties and Responsibilities Technical Leadership & Problem Solving Develop cost-effective technical solutions to complex and evolving program requirements Lead investigations into technical issues and implement corrective actions Apply advanced methods and emerging technologies to resolve operational challenges Ensure compliance with DOE regulations, policies, and technical standards Program & Strategic Support Define scope and requirements for new and evolving technical programs Develop strategic plans, goals, and performance milestones Support major initiatives including process improvements, reengineering efforts, and organizational development Provide technical input to authorization basis documents, procedures, and reports Team Leadership & Collaboration Lead multidisciplinary teams addressing complex, high-visibility projects Coordinate with internal stakeholders, external agencies (DOE-SR, DOE-HQ), and oversight bodies Engage consultants and external experts as needed Mentor and support development of technical staff, particularly in
NMC&A NMC&A
Expertise Serve as subject matter expert in Nuclear Material Control and Accountability Ensure
DOE NMC&A
requirements are integrated into facility design and operations Provide guidance, training support, and mentorship for NMC&A personnel Communication & Representation Represent the organization in technical matters with internal and external stakeholders Prepare and manage technical correspondence Support audits, reviews, and regulatory interactions Operational Excellence & Safety Promote continuous improvement initiatives aligned with mission objectives Ensure strict adherence to safety protocols and foster a culture of safety Exercise independent judgment and initiative in resolving complex issues Education and Licensure Bachelor's degree in engineering, physical science, mathematics, statistics, or related field. (required) Advanced degree (Master's or PhD). (preferred) Skills, Experience and Qualifications Minimum 20 years of experience in Nuclear Material Control and Accountability (NMC&A) at a
DOE/NNSA
site. (required) Extensive knowledge of: DOE regulatory frameworks and Authorization Basis requirements Nuclear operations, radiological systems, or plant operations Program/project management and strategic planning Demonstrated leadership in resolving complex technical and organizational challenges. Advanced analytical and problem-solving capabilities. Strong leadership and team coordination skills. Effective communication with technical and executive-level stakeholders. Proficiency with technical, analytical, and administrative systems. Due to federal contract security requirements, candidates must be able to successfully pass a federal background investigation to secure and maintain DOE Q security clearance. (required)
Preferred:
Active clearance and existing
DOE/NNSA
facility clearance (eFOCI/FCL). Standard 40-hour workweek (5/8s, 4/10s, or 9/80 schedule options). Overtime may be required to meet project deadlines. Travel requires prior approval and is limited to approved business needs only. Maintain awareness of emerging technologies and industry trends. Provide input on program improvement initiatives. Work independently with minimal direction while contributing to a team environment.
