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Position Summary: Based in Vernon, CA the Heat Treater will perform essential job functions associated with heat treatment under the direction of the Production Supervisor to meet customer specifications including assisting other employees as needed. As the world's largest provider of thermal processing services, Bodycote employs thousands of highly skilled staff around the globe, some of the best engineers, scientists, and technicians in the industry.

HOUR

Bodycote plc

Heat Treater

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As the world's largest provider of thermal processing services, Bodycote employs thousands of highly skilled staff around the globe, including some of the best engineers, scientists, and technicians in the industry. Position Summary: Based in Santa Fe Springs, CA the Heat Treater will perform essential job functions associated with heat treatment under the direction of the Foreman to meet customer specifications including assisting other employees as needed.

Heat Treater - 2nd Shift

Heat Treater - 1st Shift

You'll work alongside welders, robotics engineers, data scientists, and systems engineers at the intersection of hardware and software, creating an end-to-end convergent manufacturing platform that serves customers across aerospace, defense, marine, energy, and nuclear sectors. About the Team: Horizon Manufacturing Technologies is Relativity's externally facing advanced manufacturing business, leveraging cutting-edge advanced manufacturing capabilities to solve critical supply chain challenges across the US industrial base.

YEAR

Relativity Space

Senior Bid Manager, Advanced Manufacturing

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Currently pursuing or recently completed a BS, MS, or PhD in materials science, mechanical engineering, chemical engineering, electrical engineering, physics, chemistry, manufacturing engineering, or a related technical field. Arcturus is creating a new wire technology stack that uses carbon nanomaterials to overcome the materials limitations of metals where performance breaks down, at real operating temperatures.

Arcturus

Engineering Internship

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Proactively research and respond to customer inquiries regarding status of order, will investigate and resolve production status issues, drawing on organization to resolve roadblocks, will address shipping and scheduling issues, will proactively communicate with customer regarding changes in product availability or delivery schedules, and will work closely with purchasing, planning, engineering, and metallurgy in the initial contract review phase to ensure timely launch of customer orders. Ability to review current orders against expected engine build quantities, understanding of end user applications, ability to interface with customers when order activity doesn''t keep pace with end user forecasts, ability to interface with outside sales representatives to resolve discrepancies, understanding of drawings, prints, and customer specifications is required.

Howmet Aerospace Inc

Inside Sales Account Manager

We've developed a new chemistry that converts rare earth oxides into high-purity metals — the materials inside every EV, fighter jet, wind turbine, and data center — cleaner, cheaper, and faster than any conventional process. Operate ICP-OES and ICP-MS to measure rare earth content, metallic impurities and product purity using established methods; help improve methods as needed.

Solcoa Industries

Sr. Analytical Chemist

Roughly 3.9 million barrels of diesel (5.8 TWh of energy) are burned every day in the U.S., mostly by commercial vehicles and equipment — emitting 1.66 megatonnes of CO₂, 353 kilotonnes of NOx, and 9.92 kilotonnes of SOx daily. Contribute to the design, build, and test of components or subsystems within our power systems (mechanical, electrical, controls, battery, manufacturing, or systems engineering — depending on your focus).

Estes Energy

2026 Fall Engineering Intern

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The Failure Analysis (FA) Analyst performs hands-on laboratory work to support investigations into material, device, and component failures. We empower our team members to take ownership of their work, innovate constantly, and engage directly with customers, shaping the future of technology.

Shape the Future

Failure Analysis Analyst

Mariana Minerals is looking for a highly motivated Senioe Mine Planner to lead strategic mine planning, opportunity evaluation, and long-range optimization across the company's portfolio of mining projects. Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies.

Mariana Minerals Co LLC

Mine Planner

The Company's end markets benefit from meaningful secular demand tailwinds, and include factory automation, food & beverage, aerospace, medical, data center, warehouse, alternative energy, residential and commercial buildings, general industrial, construction, metals and mining, and agriculture. Working knowledge of engineering part drawings and general understanding of metallurgy; ability to understand the physical and mechanical properties of metals as affected by composition, mechanical working and heat treatments including metal cutting and grinding is desirable.

Regal Rexnord Corp

Calibration Technician

Experience drafting and negotiating IP-related commercial agreements, including licenses, joint development agreements, technology and software agreements, and IP provisions in broader commercial contracts. Draft, review, and negotiate commercial agreement provisions that involve intellectual property, including licenses, strategic partnerships, joint development and research collaborations, software agreements, and purchase agreements.

IP Counsel

This hands-on role focuses on running DOE protocols, operating tank reactors and purification systems, and analyzing data to optimize extraction and separation processes for critical minerals. The R&D Technician executes designed experiments and operates chemical processing equipment to advance Mariana Minerals hydrometallurgical and purification technologies.

R&D Technician

Through advanced software, deep automation, breakthroughs in materials science, and modern financing strategies, Rangeview rewrites both the cost curve and the power structure of making metal parts. You will help execute the experiments and processes that enable Rangeview to develop new manufacturing capabilities while gaining exposure to materials science, advanced manufacturing, and the systems behind a modern foundry.

Rangeview

R&D Specialist

As a Materials Science Engineering Intern, you will support the Design & Release Support - Materials team in evaluating materials, improving manufacturing processes, and contributing to the quality and performance of technologies that enable advanced semiconductor systems. The Materials Science Engineering Intern will contribute to projects that help improve manufacturing yield, product reliability, and material qualification processes while developing technical and professional skills.

ASML Holding NV

Internship - Material Science, SD Foundation

Critical Energy’s technology delivers high-efficiency, 24/7 power for geothermal applications and waste heat recovery (including from data center gas turbines), making clean energy practical and cost-effective for demanding sectors like AI hyperscalers and data centers. You will collaborate closely with engineering and leadership to simplify designs for manufacturability, drive costs down toward the idiot index (minimizing cost relative to raw materials through smart process design), and deliver reliable modules on schedule and budget.

Metallurgical Engineer Jobs in California

Heat Treater Bodycote plc

Heat Treater - 2nd Shift Bodycote plc

Heat Treater - 1st Shift Bodycote plc

Senior Bid Manager, Advanced Manufacturing Relativity Space

Engineering Internship Arcturus

Inside Sales Account Manager Howmet Aerospace Inc

Sr. Analytical Chemist Solcoa Industries

2026 Fall Engineering Intern Estes Energy

Failure Analysis Analyst Shape the Future

Mine Planner Mariana Minerals Co LLC

Calibration Technician Regal Rexnord Corp

IP Counsel Mariana Minerals Co LLC

R&D Technician Mariana Minerals Co LLC

R&D Specialist Rangeview

Internship - Material Science, SD Foundation ASML Holding NV

Head of Manufacturing Critical Energy

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