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Junior Additive Manufacturing Jobs in California

LettrLabs

Senior Mechanical Design Engineer

Los Angeles, CA · On-site

$150K - $180K/yr

Mentor junior engineers and contribute to design reviews and best practices What Success Looks Like ... waterjet, additive manufacturing) * Strong command of Design for Manufacturing and Design for ...

Divergent

Lead CNC Machinist (PM Shift)

Torrance, CA · On-site

Support implementation of advanced machining techniques and additive manufacturing workflows where ... junior technicians. * Advanced proficiency with Siemens and Heidenhain controllers. * Advanced ...

Divergent

Lead CNC Machinist (PM Shift)

Torrance, CA · On-site

Support implementation of advanced machining techniques and additive manufacturing workflows where ... junior technicians. * Advanced proficiency with Siemens and Heidenhain controllers. * Advanced ...

Divergent

Lead CNC Machinist (PM Shift)

Torrance, CA · On-site

Support implementation of advanced machining techniques and additive manufacturing workflows where ... junior technicians. * Advanced proficiency with Siemens and Heidenhain controllers. * Advanced ...

Senior plc

Design Engineer - CATIA

Burbank, CA · On-site

... additive manufacturing to design parts which can be readily manufactured. * Create details and ... However, experienced employees are expected to help mentor junior employees as needed.

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All JobsAdditive Manufacturing JobsJunior Additive Manufacturing JobsJunior Additive Manufacturing Jobs in California

Junior Additive Manufacturing information

What does a junior additive manufacturing engineer do?

A Junior Additive Manufacturing Engineer assists in designing, developing, and producing parts using 3D printing technologies. They work under the supervision of senior engineers to prepare digital models, operate additive manufacturing equipment, and ensure products meet quality standards. Their responsibilities can also include troubleshooting printer issues, post-processing printed parts, and maintaining documentation. This entry-level role often involves learning and applying new techniques as the technology evolves.

What are some common challenges that junior additive manufacturing professionals face in their first year, and how can they overcome them?

Junior Additive Manufacturing professionals often encounter challenges such as mastering a variety of 3D printing technologies, understanding material properties, and troubleshooting machine errors. Adapting to rapid design changes and learning to efficiently operate and maintain equipment are also common hurdles. To overcome these, it's helpful to seek mentorship from experienced colleagues, actively participate in team meetings, and take advantage of training resources provided by the company. Staying curious and open to feedback will accelerate learning and contribute to successful integration into the team.

What are the key skills and qualifications needed to thrive as a junior additive manufacturing engineer, and why are they important?

To thrive as a Junior Additive Manufacturing Engineer, you need a solid understanding of engineering principles, 3D modeling, and familiarity with additive manufacturing processes, usually supported by a degree in engineering or a related field. Knowledge of CAD software (such as SolidWorks or AutoCAD), experience with 3D printers, and awareness of industry standards are typically required. Strong problem-solving abilities, attention to detail, and effective teamwork are important soft skills that help you excel in this role. Mastery of these skills ensures precise, innovative, and efficient design-to-production workflows in a rapidly evolving manufacturing environment.

What is the difference between Junior Additive Manufacturing vs Junior CNC Machinist?

AspectJunior Additive ManufacturingJunior CNC Machinist
Required CredentialsHigh school diploma, training in additive manufacturing processesHigh school diploma, training in CNC programming and machining
Work Environment3D printing labs, manufacturing facilitiesMachine shops, manufacturing floors
Industry UsageRapid prototyping, custom parts productionPrecision parts manufacturing, metalworking

Both roles involve manufacturing skills but focus on different technologies. Junior Additive Manufacturing specialists work with 3D printing processes, while Junior CNC Machinists operate computer-controlled machines. Understanding these differences helps in choosing the right career path or job search focus.

What are the most commonly searched types of Additive Manufacturing jobs in California?

The most popular types of Additive Manufacturing jobs in California are:

What are popular job titles related to Junior Additive Manufacturing jobs in California?

For Junior Additive Manufacturing jobs in California, the most frequently searched job titles are:

What job categories do people searching Junior Additive Manufacturing jobs in California look for?

The top searched job categories for Junior Additive Manufacturing jobs in California are:

What cities in California are hiring for Junior Additive Manufacturing jobs?

Cities in California with the most Junior Additive Manufacturing job openings:

Junior Additive Manufacturing jobs near you

Senior Mechanical Design Engineer

LettrLabs

Los Angeles, CA • On-site

$150K - $180K/yr

Full-time

Re-posted 4 days ago

Key responsibilities

  • Own the mechanical design and development of complex electromechanical systems from concept through production.

  • Design and validate mechanical systems, including motion systems, sheet metal components, and assemblies, through analysis and prototyping.

  • Create detailed engineering drawings, BOMs, and documentation, and collaborate with cross-functional partners and vendors throughout the product lifecycle.

Job description

The Role

LettrLabs is reinventing direct mail. With our own in-house handwriting robotics, we're challenging traditional direct mail manufacturing from the ground up. We're looking for a Senior Mechanical Design Engineer to own the mechanical design and development of complex electromechanical systems from concept through production — and to be instrumental in building our next-generation production automation platform.

You'll take projects end-to-end: translating requirements into robust, manufacturable designs, validating them through analysis and prototyping, and seeing them through to commissioning. You'll work closely with cross-functional partners in electrical, controls, manufacturing, and quality, as well as external vendors and suppliers. This is a hands-on, high-ownership position for an engineer who is equally comfortable at a whiteboard, in CAD, and on the shop floor.

Why Join Us

  • Design the machines that make our product possible — you're not supporting a production line, you're building it
  • High ownership from day one: end-to-end accountability for complete mechanical systems, not isolated components
  • Work alongside a team of engineers who bring the same grit and ownership mindset to every problem
  • Real exposure to leadership and cross-functional partners — your design decisions are visible and matter
  • A culture of grit, perseverance, and performance that values engineers who get energized by hard problems
  • Competitive compensation, growing benefits, and a culture that rewards initiative.

What You Will Own

  • Own entire mechanical systems and sub-systems across the full product lifecycle — requirements generation, concept development, detailed design, analysis, prototyping, validation, and commissioning
  • Design precision motion systems incorporating belts, pulleys, gears, bearings, shafts, and related drivetrain components
  • Develop sheet metal components and assemblies with a strong understanding of manufacturing processes and tolerances
  • Apply DFM/DFA principles to drive cost, quality, and reliability across every design decision
  • Perform engineering analysis using hand calculations and FEA to size components, validate designs, and de-risk failure modes
  • Select appropriate materials and finishes based on structural, thermal, environmental, and cost requirements
  • Build and test prototypes rapidly to validate concepts and iterate quickly toward production-ready designs
  • Create and maintain detailed engineering drawings, GD&T, BOMs, and design documentation
  • Mentor junior engineers and contribute to design reviews and best practices

What Success Looks Like

  • Mechanical systems delivered on time from requirements through commissioning with minimal rework
  • Designs that pass validation the first time — rigorous analysis and prototyping reduce costly late-stage surprises
  • Cross-functional partners describe you as someone who makes integration easier, not harder
  • Junior engineers improve measurably through your mentorship and design review participation

What You Bring

  • 5+ years of experience in mechanical design and product development
  • Deep, hands-on experience with motion systems and their core components — belts, pulleys, gears, bearings, and shafts
  • Working expertise in sheet metal design and the associated manufacturing methods (bending, CNC machining, laser cutting, waterjet, additive manufacturing)
  • Strong command of Design for Manufacturing and Design for Assembly (DFM/DFA)
  • Strong fundamentals in mechanical engineering — statics, dynamics, mechanics of materials, tolerancing
  • Proven experience with FEA and hand calculations to drive and validate design decisions
  • A track record of owning complete mechanical systems and sub-systems from requirements through commissioning
  • Experience working directly with vendors and suppliers throughout design and manufacturing
  • Bachelor's degree in Mechanical Engineering or a related field

Nice to Haves

  • Master's degree in Mechanical Engineering or a related discipline
  • Experience in robotics, automation, or industrial machinery
  • Proficiency with SolidWorks, NX, or similar CAD platforms and PDM/PLM systems
  • Familiarity with GD&T (ASME Y14.5) and tolerance stack-up analysis
LettrLabs USA
$150,000—$180,000 USD

Actual base salary offered will be determined by: experience, skills, and work location. This range is for base salary, our total compensation includes equity and benefits. We welcome you to apply even if your expectations are outside our listed range.

LettrLabs is committed to creating a diverse environment and is proud to be an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status.

LettrLabs is committed to providing reasonable accommodations for qualified individuals with disabilities in our job application procedures and throughout employment. If you need assistance or any accommodation, please let us know.

LettrLabs does not accept unsolicited resumes from recruiters or employment agencies without a fully executed recruitment agreement in place. In the absence of such agreement, LettrLabs reserves the right to pursue and hire any candidates without an obligation to pay fees. Agencies are requested not to contact LettrLabs hiring managers or employees regarding recruiting services.