About Phinity
Phinity is building prompt-to-silicon. We are creating the closed-loop system that lets AI agents design, verify, optimize, and tape out chips end-to-end. By 2028, any company will be able to specify a set of requirements for a chip and Phinity will deliver them a GDS file in weeks, not years.
We are working with leading frontier model labs and growing exponentially. Our team brings together deep AI and silicon expertise: training chip-design models at NVIDIA, doing formal reasoning post-training at scale, exiting a synthetic data company, leading the LPU team at Groq, and building chips at AMD, Intel, and MediaTek for over 10+ years. We are building an exceptional, highly efficient team to dismantle the current chip industry.
The Role
The Chip Architect role is for an experienced silicon engineer who wants to architect and lead a a chip, heavily using AI to speed up development. Some example responsibilities include:
Architect and drive the development of edge compute chips, owning the microarchitecture and the PPA, timing, area, power, and physical-feasibility tradeoffs that define a good design
Make the chip- and subsystem-level architecture decisions that have to survive verification, timing, area, power, and physical constraints, and own the technical bar across the design
Establish rigorous verification and signoff practice across simulation, formal, and physical design
Articulate why a design decision is good, and help us encode that judgment into the tooling that lets a small team design hardware at unusual speed
Work hands-on with unreleased frontier models as part of how the chip gets built
The role will involve you working directly with the founders and collaborating frequently with frontier lab researchers.
Requirements
8+ years architecting and shipping complex chips or subsystems, with designs taken through tapeout
Knowledge across the design stack: RTL and microarchitecture, PPA optimization, verification, understanding of physical design and signoff
Experience using AI to develop chips
Strong communication skills and willingness to try new methods in ambiguous and fast-moving environments
Why you should work with us
→ Build a real chip with unlimited AI usage
→ Access non-publicly released foundation models and learn what the frontier of intelligence is before everyone else
→ Own architecture decisions for novel chip design end-to-end
We offer competitive salary and equity. We work in-person from SF and also have benefits including:
Health insurance
Retirement plans
Unlimited PTO
Paid parental leave
Lunch and dinner provided in-office
Other open roles at Phinity Labs(3)
Prompt to silicon: agents that go from workload to GDS in weeks.
Key team members
Albert Chun
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