Lead Cost Estimator

newcleo is an innovative nuclear energy company developing AMRs cooled by liquid lead, and nuclear fuel from recycled nuclear waste, with the goal of delivering abundant, competitive, low-carbon energy.

The Company was founded by physicist-entrepreneur Stefano Buono following the USD 3.9 billion sale of his previous venture - Nasdaq-listed nuclear medicine company Advanced Accelerator Applications - to Novartis.

With over $80 million in revenue, other income, and financial income in 2024 including from its operating companies, approximately $780 million in private funding, and more than 900 highly skilled employees across Europe and the United States, the Company has built a network of over 100 industry partnerships and supports its growth through the targeted acquisition and vertical integration of key companies in the nuclear supply chain.

On May 27, 2026, newcleo announced that it had entered into a definitive agreement for a business combination with New Hold Investment Corp. III (NASDAQ: NHIC) in a transaction that, upon closing, would result in newcleo becoming a U.S.

-listed public company. The combined company is expected to be listed on the Nasdaq exchange under the ticker symbol NWCL following an anticipated transaction close in the second half of 2026, subject to satisfaction of customary closing conditions.

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newcleo is seeking a Senior Cost Estimator to support the development of its advanced MOX fuel manufacturing facility in the United States.

This role will play a key part in establishing and maintaining a U.S.

-based cost estimate aligned with local market conditions, including labor rates, productivity assumptions, supply chain considerations, construction methodologies, and regulatory requirements.

Building on the project’s existing design maturity, the Senior Cost Estimator will lead the development and continuous improvement of the project cost baseline, supporting investment decisions, project governance, and the transition toward execution.

The ideal candidate will bring strong experience in cost estimating for large-scale industrial, nuclear, or highly regulated projects, with expertise in AACE methodologies and U.S. project delivery environments.

• Develop, validate, and maintain the project cost estimate for the U.S. MOX fuel manufacturing facility.
• Adapt existing international cost estimates to reflect U.S. market conditions and execution strategies.
• Develop CAPEX estimates including engineering, procurement, construction, commissioning, indirect costs, and contingency.
• Apply AACE International recommended practices and ensure estimate accuracy, consistency, and traceability.
• Establish cost breakdown structures aligned with project scope, engineering maturity, and execution plans.
• Define and maintain estimating assumptions, methodologies, and cost databases.
• Analyze cost risks, uncertainties, escalation factors, and contingency requirements.
• Support cost reviews, investment decisions, and project stage-gate approvals.
• Benchmark costs against comparable U.S. nuclear, energy, and industrial projects.
• Continuously refine estimates as the project progresses from design development toward execution.

The Senior Cost Estimator will work closely with multidisciplinary teams across the project, including:

• Engineering and Design
• Manufacturing and Industrialization
• Construction and Site Execution
• Licensing and Regulatory Affairs
• Quality Assurance and Nuclear Safety
• Procurement and Supply Chain
• Project Management and Project Controls

The role requires close collaboration to ensure cost assumptions accurately reflect technical requirements, construction strategies, supplier availability, licensing constraints, and project execution plans.

• Bachelor's degree in Engineering, Construction Management, Cost Engineering, or related field.
• 10+ years of experience in cost estimating for large-scale industrial, nuclear, energy, infrastructure, or similarly complex projects.
• Strong knowledge of AACE International cost estimating principles and estimate classification methodologies.
• Demonstrated experience…