Senior Additive Manufacturing Engineer

Arcturus; Los Angeles (CA); On-site; USD 140,000 - 190,000; Full time

Benefits offered by this job

Competitive cash compensation

Equity stake

Technical ownership over manufacturing

Relocation support

Job summary

Arcturus is seeking a Senior Additive Manufacturing Engineer to advance metal AM workflows at our Los Angeles site. You will execute parameter development, build preparation, print execution, post-processing, and documentation for aluminum and copper systems infused with carbon nanomaterials.

You will work with the Lead AM Engineer, nanomaterials, processing, and testing teams to translate print parameters into electrical, thermal, mechanical, and microstructural performance.

Qualifications

• BS/MS/PhD in relevant engineering field.
• 2+ years hands-on AM/metal processing experience.
• Experience with LPBF, DED, WAAM or similar metal AM.
• Ability to conduct experiments and interpret results.
• Strong documentation and communication skills.

Responsibilities

• Support LPBF, DED, and metal AM experiments.
• Prepare builds, define build layouts, support orientation and strategy.
• Develop and refine print parameters, scan strategies, and thermal management.
• Assist powder handling, build setup, and post-processing.
• Diagnose print defects and troubleshoot issues.
• Collaborate with teams to connect parameters to performance.
• Maintain fixture designs, build records, and test plans.
• Support DOE-style experimentation and root-cause investigations.
• Coordinate with vendors and external labs to keep builds moving.

Skills

Hands-on engineering

Lab work

Experimentation

Documentation

Troubleshooting

Communication of results

Education

BS/MS/PhD in engineering or physics

Tools

CAD

Slicing software

Process monitoring tools

Job description

Senior Additive Manufacturing Engineer

Los Angeles, CA (in-person)

About Arcturus

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. Our technology is designed to significantly improve the performance of electric motors for drones and robotics, heat sinks, and ultimately the entire energy grid.

Why you should join us

This is a ground‑floor opportunity to help build something that has never been done before. You would join as an early senior additive manufacturing engineer and work closely with Arcturus’ technical leads across AM, nanomaterials, processing, and testing. This is a hands‑on role for someone who wants to move quickly, run experiments, build real hardware, and help turn first‑of‑its‑kind materials science into repeatable manufacturing capability.

Purpose

We are seeking a Senior Additive Manufacturing Engineer who can help execute and improve Arcturus’ metal additive manufacturing workflows across LPBF, DED, and related metal processing approaches. This person will support parameter development, build preparation, print execution, post‑processing, characterization feedback, and process documentation for aluminum and copper systems infused with carbon nanomaterials.

The role

This role will work closely with Arcturus’ Lead Additive Manufacturing Engineer, technical leads, and CEO.

What you’ll do

• Support LPBF, DED, and related metal additive manufacturing experiments for carbon nanomaterial‑infused aluminum and copper systems
• Prepare builds, define build layouts, support orientation and support strategy, and help execute design‑for‑additive‑manufacturing decisions
• Develop and refine print parameters, scan strategies, thermal management approaches, and process recipes
• Support powder and feedstock handling, build setup, machine operation, sample removal, post‑processing, and documentation
• Help diagnose print defects including porosity, cracking, distortion, poor bonding, surface quality issues, and inconsistent build outcomes
• Partner with nanomaterials, process, and testing teams to connect print parameters to electrical, thermal, mechanical, and microstructural performance
• Help build and maintain fixture designs, CAD files, build records, process travelers, test plans, and experiment summaries
• Support DOE‑style experimentation, repeatability studies, and root‑cause investigations
• Work with vendors, machine shops, external labs, and equipment suppliers as needed to keep experiments and builds moving

Basic qualifications

• BS, MS, or PhD in mechanical engineering, materials science, manufacturing engineering, welding engineering, metallurgical engineering, physics, or a related field
• 2+ years of hands‑on experience in additive manufacturing, metal processing, powder metallurgy, laser processing, welding, or a closely related field
• Experience with at least one relevant process area such as LPBF, DED, WAAM, powder metallurgy, laser processing, welding, or metal AM post‑processing
• Strong hands‑on engineering instincts and comfort working in a lab, shop, or manufacturing environment
• Ability to execute experiments, analyze results, troubleshoot problems, and communicate findings clearly
• Strong technical documentation skills, including build notes, test plans, process updates, and experimental summaries
• High ownership, attention to detail, and comfort working in a fast‑moving startup environment

Preferred qualifications

• Experience with LPBF or DED metal additive manufacturing (or similar, ie. WAAM, etc.)
• Experience with aluminum, copper, conductors, metal matrix composites, or non‑standard material systems
• Familiarity with AM build preparation tools, CAD, slicing, support generation, scan strategy setup, or print simulation
• Experience with powder handling, feedstock preparation, post‑processing, sample preparation, or materials characterization
• Familiarity with DOE, statistical analysis, root‑cause analysis, or process optimization
• Experience working in a startup, research lab, advanced manufacturing team, or hardware development environment

What we offer

• Competitive cash compensation and meaningful equity
• Direct technical ownership over a core manufacturing platform
• The chance to define the playbook for nanomaterial‑enhanced metal additive manufacturing
• Relocation support for employees moving from outside the Los Angeles area