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Atomic Semi

Atomic Semi

Compact semiconductor fab producing chips

Software Engineer Intern

Summer 2026Posted on 1/27/2026
$52.88 - $63.46/hr
Internship
Bachelor's
San Francisco, CA, USA
In Person
H1B Sponsorship Available

About the job

Requirements
  • Pursuing a BS in Computer Science, Computer Engineering, or demonstrated exceptional skill in software engineering
  • Strong programming skills in Rust and Go or Typescript plus a strong desire to learn
  • Solid understanding of systems fundamentals: memory, performance, concurrency
  • Experience building non-trivial software projects from scratch (personal, academic, or professional)
  • A portfolio or GitHub is generally required to apply
Responsibilities
  • Develop frontend + backend, data driven applications to run the fab
  • Develop software for sequencing and controlling fab operations
Desired Qualifications
  • Experience with interactive software such as Figma, Blender, CAD tools, KiCad, or scientific computing environments
  • Familiarity with schema evolution, database migrations, or serialization formats like Protobuf
  • Understanding of collaborative or distributed systems (e.g., CRDTs, OT, WebSockets)
  • Appreciation for texts such as Structure and Interpretation of Computer Programs and Designing Data-Intensive Applications: The Big Ideas Behind Reliable, Scalable, and Maintainable Systems
  • Exposure to advanced 2D/3D visualization, simulation, or novel user interfaces

About the company

Atomic Semi builds and operates a compact semiconductor fabrication facility to manufacture chips for electronics, automotive, telecom, and more. It uses its own tools and processes to create chips with smaller, more efficient geometries and can offer custom fabrication services to clients. The company distinguishes itself from large fabs by being small, fast, and agile, developing its own manufacturing tools to quickly adapt to new technologies and market needs. Its goal is to provide nimble, efficient chip manufacturing that helps a wide range of tech companies get high-quality chips faster and with flexibility for evolving technology trends.

Company Size

51-200

Company Stage

Seed

Total Funding

$15M

Headquarters

San Francisco, California

Founded

2023

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Simplify Jobs

Simplify's Take

What believers are saying

  • Fab2 is actively hiring across Austin, Lockhart, and San Francisco in August 2026.
  • The company rebranded in July 2026, signaling stronger focus on manufacturing equipment.
  • Recent Texas expansion and 84-person scale show operational momentum beyond a lab prototype.

What critics are saying

  • Fab2's Austin headquarters shift and Lockhart denial signal execution confusion by mid-2026.
  • A $15 million seed round cannot fund serious semiconductor manufacturing without rapid dilution.
  • If Fab2 misses a working mini-fab milestone in 2026, investors kill the thesis.

What makes Atomic Semi unique

  • Jim Keller and Sam Zeloof pair elite chip design with hands-on fab-building expertise.
  • Fab2 now builds fab equipment in-house, targeting a vertically integrated 'fab fab' model.
  • Austin, Lockhart, and San Francisco sites create a rare distributed manufacturing development stack.

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Benefits

Health Insurance

Dental Insurance

Vision Insurance

Life Insurance

Disability Insurance

Unlimited Paid Time Off

401(k) Retirement Plan

Paid Parental Leave

Commuter Benefits

Wellness Program

Growth & Insights

Headcount

6 month growth

-2%

1 year growth

2%

2 year growth

-8%
INACTIVE