Estimator – Nuclear Manufacturing | Inside Sales Chattanooga, TN | Onsite Direct Hire | 10+ Years Experience System One is seeking a seasoned Estimator to join a high-performing Inside Sales team supporting nuclear-grade manufacturing. This role is ideal for a professional who understands the realities of machine and fabrication shops and thrives in precision-driven, regulated environments. What You’ll Do + Prepare accurate, detailed cost estimates for RFQs involving nuclear-grade machined and fabricated components + Evaluate drawings, specifications, materials, labor, and processes to determine realistic costs and lead times + Partner with engineering, machining, welding, and production teams to validate scope and feasibility + Ensure estimates comply with nuclear quality and regulatory standards What We’re Looking For + 10+ years of estimating experience in machine shop and/or fabrication environments + Strong knowledge of nuclear manufacturing standards (NQA-1, ASME, QA programs) + Proven ability to analyze complex RFQs with precision and confidence + Detail-driven mindset with strong communication and collaboration skills Why Join System One + Be part of a growing advanced-manufacturing organization serving nuclear, defense, aerospace, and energy sectors + Work in a high-skill, collaborative environment with experienced engineers and trades professionals + Support projects critical to next-generation nuclear energy and national security + Long-term stability with a company investing in people, technology, and expansion Ready to make an impact in nuclear manufacturing? Apply today and bring your estimating expertise to a mission-critical industry System One, and its subsidiaries including Joulé, ALTA IT Services, and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan. System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law. Ref: #161-Managed Staffing Charlotte System One, and its subsidiaries including Joulé, ALTA IT Services, CM Access, TPGS, and MOUNTAIN, LTD., are leaders in delivering workforce solutions and integrated services across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible full-time employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan. System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.