Senior Mechanical Engineer

Job Title: Senior Mechanical Engineer Industrial Machine Design Integration
Department: RD
Reports to: Director of Engineering
Employment Type: Full-Time
FLSA Status: Exempt

The Company:
3

DEO is a leader and innovator in sinter-based additive manufacturing (AM), delivering proprietary and differentiated AM solutions that drive breakthrough product performance. With some of the industrys highest-volume capabilities in metal 3D printing, 3

DEO combines cutting-edge manufacturing with multi-disciplinary engineering and product development expertise.

Our patented and award-winning technology has revolutionized how customers approach design, enabling high-volume production with unmatched quality, precision, and cost efficiency. Holding roughly 20 patents, 3

DEO is more than a manufacturer we are a trusted partner in solving complex challenges and unlocking the full potential of AM.

At 3

DEO, we collaborate closely with customers in industries such as medical, industrial, aerospace, and semiconductors, delivering end-to-end solutions that include RD, design, engineering, prototyping, production, and beyond.

Since our founding in 2016, our greatest strength has been our team. At 3

DEO, innovation is approached as a team. Together, we tackle the toughest product development challenges, helping our customers bring visionary ideas to life. Join our passionate and collaborative team at 3

DEO, where were transforming whats possible in metal additive manufacturing and making what hasnt been made before.

Job Summary:
The Senior Mechanical Engineer is responsible for designing and integrating custom industrial machines from concept through deployment. This hands-on role supports the development of next-generation powder-metal 3D printers built on a CNC platform, requiring deep experience with motion systems, electromechanical assemblies, and machine-level integration. The ideal candidate has built machine snot just modeled components and is fluent in sourcing, assembly, and system-level mechanical design.

Essential Functions:

● Redesign and upgrade existing 3D printing systems, replacing prototype components with production-grade machined parts to support long-term scalability and manufacturing readiness.

● Specify, select, and integrate motion control systems including stepper motors, extended motion axes, recoating mechanisms, spindles, and linear guides.

● Modify and expand build chamber designs, including sealing and controlled access systems to enable inert gas environments.

● Incorporate cosmetic design elements as provided by external industrial design partners.

● Develop and implement new mechanical processes, technical solutions, and machine features to support ongoing hardware development initiatives.

● Collaborate closely with electrical, software, and controls engineers to ensure complete system integration.

● Lead prototype builds, mechanical testing, debugging, and iterative design improvements.

● Support design transfer to manufacturing and provide production support for deployed systems.

● Maintain complete design documentation including BOMs, mechanical drawings, and revision histories.

Required Qualifications:

● Proficiency with Solid Works or similar CAD software, including assemblies, tolerancing, and CNC-ready design

● Strong understanding of motion components, linear guides, actuation, and mechanical fasteners

● Proven ability to build and integrate electromechanical systems in a lab or production environment

● Hands-on experience sourcing components

● Effective collaboration with cross-functional teams in a fast-paced RD setting

Preferred Qualifications:

● Experience designing sealed systems, gas enclosures, or powder-handling equipment

● Field installation, debug, or customer training experience

Education and Experience:

● Bachelors degree in Mechanical Engineering or a related field required

● Minimum of 6 years of experience in mechanical design, machine development, or automation

● Masters degree preferred but not required

Physical Requirements and Work Environment:

● Regularly works in an engineering lab and machine build environment

● Must be able to sit, stand, and perform hands-on work at machines and workbenches

● Occasionally required to lift and move up to 50 pounds

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