Summer 2027 Internship- Mechanical Engineering
Pacific Fusion · San Leandro, CA/Fremont, CA or Los Lunas, NM
Posted 7 days ago
or apply directly on Pacific Fusion's site. We never take the application ourselves.
Is this posting real?
- This role has been open
- 7 days Pacific Fusion's roles stay open a median of 45 days
- Reposted
- No
- Salary listed
- No 3% of Pacific Fusion's roles list one
- Ghost-job risk at Pacific Fusion
- high 23 stale, 0 reposted of 37 open
- Hiring momentum
- 46 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 Pacific Fusion's own greenhouse board since 2026-08-03. Full hiring picture for Pacific Fusion.
About this role
As a Mechanical Engineering Intern at Pacific Fusion, you will engage in hands-on projects that span the entire development process, from planning and design to assembly and testing. You will work closely with the engineering team on high-priority projects that contribute directly to the advancement of fusion energy systems. This role offers a unique opportunity to gain practical experience in a cutting-edge field focused on clean energy solutions.
- benefits
- 5/5
- freshness
- 5/5
- 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 Pacific Fusion as an employer.
What you need
- Junior or Senior standing in a 4-year Mechanical Engineering program
- Strong foundation in mechanical engineering fundamentals and first principles
- Clear, confident written and verbal communication skills
- Working knowledge of stress analysis (hand calcs and FEA), 2D drawings, and design for manufacturing and assembly
- Experience using 2D and 3D CAD tools such as Creo or SolidWorks
- Able to work full time, onsite for a minimum of 12 consecutive weeks beginning in Mid May- Mid June 2027
Nice to have
- Hands-on mechanical design through coursework, clubs, research, or personal projects
- Experience with conventional machining, shop tools, and rapid prototyping
- Experience defining system architectures and making design tradeoffs against requirements
- Experience writing build instructions, procedures, or test plans
- Strong measurement, documentation, and data analysis skills
What you get
- Meaningful, resume-building engineering work on real hardware
- A chance to design, build, and test real systems
- Mentorship from experienced engineers in a high-impact environment
- Exposure to the full product lifecycle—from concept and design to build, test, and operation
- A collaborative, hands-on, learning-driven culture
- Daily catered lunch and unlimited snacks
Worth weighing
- No specific mention of the technologies or tools used beyond CAD software, which may limit exposure to modern engineering practices.
- The internship requires full-time onsite work, which may not be suitable for all candidates.
- The role is focused on fusion energy, which is a niche area that may not appeal to all mechanical engineering students.
Summarised from Pacific Fusion's posting. Read the full original.
Listed by Pacific Fusion on their greenhouse job board, last confirmed open on 2026-09-17. PitchMeAI is not the employer.
More roles at Pacific Fusion
- Senior Manufacturing EngineerSan Leandro, CA
- Senior Mechanical Engineer - Test InfrastructureSan Leandro, CA
- Fabrication LeadSan Leandro, CA
- Senior Manufacturing Engineer - NPIFremont, CA
- Mechanical Design EngineerFremont, CA
- Senior Mechanical Engineer - Vacuum SystemsFremont, CA
- Manufacturing Systems AnalystSan Leandro, CA
- Summer 2027 Internship- Supply ChainSan Leandro, CA/Fremont, CA or Los Lunas, NM