JULIAN CALLEIRO

U.S Marine Corps

02.2021 - 02.2025

Delivered technical presentations to leadership on custom-fabricated components, clearly explaining functionality, safety, and use. Securing approval for field deployment, resulting in successful implementation of solutions that improved vehicle and equipment readiness.
Oversaw the design and production of more than 200 fully custom, precision-engineered parts, each built to unique specifications, with a 100% success rate in mission-critical applications by aligning complex technical requirements with operational objectives.
Directed all CNC machining and CAD software design operations, leveraging 2 CNC lathes, 2 mills, a plasma table, and a water jet system to enhance in-house manufacturing capabilities. Managed an inventory of 500+ cutting tools, ensuring optimal selection, usage, and maintenance, which minimized outsourcing, accelerated turnaround times, and significantly improved overall production efficiency.
Trained and mentored a team of 35, fostering leadership skills, public speaking confidence, and professionalism that enhanced overall performance and unit cohesion.
Negotiated procurement contracts up to $500,000, presenting product value propositions to upper management to secure cost-effective, high-quality industrial equipment for mission-essential operations.

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