Rust Software Engineer

About Atomic Semi

Atomic Semi is building a small, fast semiconductor fab.

It’s already possible to build this with today’s technology and a few simplifications. We’ll build the tools ourselves so we can quickly iterate and improve.

We’re building a small team of exceptional, hands-on engineers to make this happen. Mechanical, electrical, hardware, computer, and process. We’ll own the stack from atoms to architecture. Our team is optimistic about the future and we want to continue pushing the limits of technology.

Smaller is better. Faster is better. Building it ourselves is better.

We believe our team and lab can build anything. We’ve set up 3D printers, a wide array of microscopes, e-beam writers, general fabrication equipment - and whatever is missing, we’ll just invent along the way.

Atomic was founded by Sam Zeloof and Jim Keller. Sam is best known for making chips in his garage, and Jim has been a leader in the semiconductor industry for the past 40 years.

About the team

This software team builds the core tools used for chip fabrication and design. We work hands-on across multiple domains—from low-level systems and data synchronization to GPU-accelerated visualization, simulation, and interactive editing tools. Our goal is to build the software that connects directly to the physical manufacturing process, helping our engineering team design, simulate, and understand real physical systems from scratch.

About the role

As a Rust Software Engineer, you will dive directly into our stack to build complex features from scratch. Blending computational geometry, real-time collaboration, and interactive editing, you will take broad ownership of software that solves deep technical challenges for our internal users.

We are open to a range of experience levels, from exceptional early-career engineers to staff-level builders. What matters most is that you have built real things, love getting close to the metal, and learn new domains quickly.

A portfolio is required to apply: show us the things you’ve actually built! For us, a strong portfolio demonstrates your engineering excellence, curiosity, and a love for taking ideas from concept to reality.

Responsibilities

• Build deeply interactive editing tools with low-latency, CAD- or Figma-like interfaces for geometry manipulation, routing, annotation, and measurement

• Develop production-grade Rust software targeting both native and WebAssembly environments

• Architect real-time collaborative systems, including state synchronization, conflict resolution, and efficient data transmission

• Implement efficient algorithms for geometry querying, graphs, and routing

• Build high-performance rendering and visualization pipelines, from GPU-accelerated rendering and spatial indexing to streaming massive datasets, visualizing millions of polygons, or rendering complex 3D fields

• Continuously profile and optimize CPU, GPU, memory, and network performance to push the limits of responsiveness and scale

• Own major features end-to-end and work closely with internal users, including process engineers and circuit designers, to deliver powerful, intuitive tools that solve real problems

Required Experience

• BS in Computer Science, Computer Engineering, or demonstrated exceptional skill in software engineering

• Strong programming skills in Rust, or significant C++/systems programming experience and a strong desire to learn Rust quickly

• Solid understanding of systems fundamentals: memory, performance, concurrency

• Experience building non-trivial software projects from scratch (personal, academic, or professional)

• Interest in one or more of the following areas: real-time systems, computational geometry, algorithms, computer graphics, visualization

Nice-to-haves

• Experience with interactive software such as Figma, Blender, Unity, OnShape or other CAD tool, Ableton Live, KiCad, or scientific computing environments

• Familiarity with WebAssembly or building rich applications

• Experience with schema evolution, database migrations, or serialization formats like Protobuf

• Understanding of collaborative or distributed systems (e.g., CRDTs, OT, WebSockets)

• Exposure to geometry or graph algorithms, optimization, or simulation (including spatial data structures and hierarchical representations)

• Experience with graphics rendering pipelines (WebGPU, Vulkan, OpenGL)

• Exposure to advanced 2D/3D visualization, simulation, or novel user interfaces

Working at Atomic Semi

We’re an early-stage hardware startup with solid funding, world-class advisors, and a lab/office in San Francisco, CA.

Compensation: Atomic Semi is committed to fair and equitable compensation practices. The annual salary range for this role is $125,000 – $195,000. Compensation is determined based on your qualifications and experience. Our total compensation package also includes generous equity in Atomic Semi.

Benefits: Atomic Semi offers the following benefits, subject to applicable eligibility requirements:

• Medical, Dental, and Vision insurance

• Generous Paid Time Off inclusive of Holidays and Sick Time

• Visa Sponsorship

• Life and Disability Insurance

• Paid Parental Leave

• 401(k) retirement plan

• Weekly Learning & Development opportunities

• Commuter Benefits including Parking and Late Night Uber rides from the office

• Lunches daily, Dinners 3x per week, Stocked Office Kitchen with Snacks and Spindrifts

We are an equal-opportunity employer and do not discriminate on the basis of race, religion, national origin, gender, sexual orientation, age, veteran status, disability or other legally protected statuses.

Export Control Analysis: This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls.

Compensation Range: $125K - $195K