Senior CNC Machinist

Senior CNC Machinist Denver, CO Engineering – Manufacturing Operations /Full-Time /On-site

• Program, set up, and operate multi-axis CNC equipment (mills, lathes, and specialty equipment) for complex prototype and low-volume parts.
• Develop, optimize, and maintain machining strategies, tool paths, feeds/speeds, and work holding for R&D components.
• Perform in-process inspections using precision measurement tools and adjust processes to maintain tight tolerances.
• Drive first-time quality through disciplined machining practices and root-cause analysis when issues arise.

• Translate engineering models and drawings into efficient, manufacturable machining processes.
• Partner closely with Design Engineering to provide DFM/DFX feedback, resolve ambiguities, and suggest enhancements.
• Collaborate with Manufacturing Engineering to refine process flows, tooling strategies, and equipment capability.
• Support project teams by evaluating machining feasibility, material selection impacts, and part design risks.

• Work directly with Project Managers and Project Leads to prioritize work, align expectations, communicate risks, and ensure timely delivery.
• Serve as a technical liaison between machining operations and internal customers, enabling fast iteration cycles and clear communication.
• Coordinate internal logistics, including material routing, part movement, and scheduling within the shop.

• Partner with internal Sourcing and Logistics teams to manage material procurement, outsourced operations, and incoming inspection.
• Ensure external partners meet internal quality standards.

• Contribute to the development of machining standards, shop documentation, and scalable workflows appropriate for a growing fusion startup.
• Evaluate and recommend new equipment, tools, fixturing, or software to increase capability and reduce lead times.
• Foster a culture of safety, innovation, and rapid learning.

• 7–10+ years of CNC machining experience with at least 3 years in prototype or R&D environments.
• Strong proficiency in CAM software (e.g., Mastercam, Fusion 360, hyperMILL, NX CAM).
• Deep understanding of materials used in energy systems (stainless steels, nickel alloys, refractory metals, engineered plastics, etc.).
• Experience with GD&T, high‑precision inspection methods, and tight‑tolerance machining.
• Proven ability to collaborate with engineering teams and communicate clearly with technical and non‑technical stakeholders.
• Experience working in fast‑paced, ambiguous environments—preferably in hardware startups, aerospace, energy, or robotics.
• Ability to self-direct work, manage multiple priorities, and maintain composure under time pressure.

• Background supporting complex, physics-driven systems (vacuum components, high‑energy systems, plasma devices, cryogenic assemblies, etc.).
• Experience with manual machining, EDM, or additive manufacturing.
• Familiarity with ERP/MRP/MES systems and shop‑floor traceability.

$45 - $57 an hour

Xcimer Energy is proud to be an Equal Opportunity/Affirmative Action Employer and is committed to attracting, retaining, and developing a highly qualified, diverse, and dedicated work force. Xcimer Energy hires and promotes people on the basis of their qualifications, performance, and abilities. We support the establishment and maintenance of a workplace that fosters trust, equality, and teamwork, in which all employees recognize and appreciate the diversity of individual team members.

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