or apply directly on Lightmatter's site. We never take the application ourselves.
Is this posting real?
- This role has been open
- 29 days Lightmatter's roles stay open a median of 45 days
- Reposted
- No
- Salary listed
- No 10% of Lightmatter's roles list one
- Ghost-job risk at Lightmatter
- high 45 stale, 0 reposted of 63 open
- Hiring momentum
- 85 roles opened in the last 90 days ↑ up vs. the prior 90 days
- Last confirmed on the employer's board
- 2026-09-17
Measured from postings appearing on and disappearing from Lightmatter's own greenhouse board since 2026-08-03. Full hiring picture for Lightmatter.
About this role
As a System Mechanical Design Engineer at Lightmatter, you will be responsible for developing chassis and rack platforms for next-generation AI servers. Your role will involve hands-on mechanical design, transitioning from CAD and prototypes to managing external manufacturers for high-volume production, while ensuring optimal thermal performance of the hardware. You will collaborate with cross-functional teams to address technical challenges and drive design reviews, all within a dynamic startup environment.
- benefits
- 5/5
- freshness
- 4/5
- career value
- 4/5
- role clarity
- 4/5
- pay transparency
- 0/5
Scored from the posting itself — how clearly the role is described, how much it says about pay and benefits, and how recently it was listed. Not a judgement of Lightmatter as an employer.
What you need
- Bachelor’s degree in Mechanical Engineering or related fields
- 5+ years of experience in system mechanical design with multiple successful product releases
- Proficient in a 3D CAD solid modeling software package such as SolidWorks
- Familiar with both thermal and structural testing and analysis
- Experience with state-of-the-art mechanical engineering design and analysis tools (ANSYS preferred)
- Strong understanding in the application of heat transfer principles, strength of materials, materials selection, design for vibration environments
Nice to have
- Master’s degree in Mechanical Engineering or related field
- Familiar with 3D printing equipment and processes
- Proficient with FEA software package (ANSYS, SolidWorks)
- Proficient with thermal simulation and analysis software package (IcePak, Flotherm)
What you get
- Comprehensive Health Care Plan (Medical, Dental & Vision)
- Retirement Savings Matching Program
- Life Insurance (Basic, Voluntary & AD&D)
- Generous Time Off (Vacation, Sick & Public Holidays)
- Paid Family Leave
- Short Term & Long Term Disability
Worth weighing
- Salary range is dependent on education, years of industry experience, and interview performance.
- No specific mention of the technology stack or tools beyond CAD and analysis software.
- Role may involve managing external manufacturers, which could vary in complexity and reliability.
Summarised from Lightmatter's posting. Read the full original.
Listed by Lightmatter on their greenhouse job board, last confirmed open on 2026-09-17. PitchMeAI is not the employer.
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