Platform Software Architect, Senior / Staff
About The Position
Positron AI is hiring platform software architects to define the hardware/software contract for Asimov and the generations that follow. You will work across silicon architecture, firmware, operating systems, runtime, simulation, security, performance, and developer tooling. This is a direct technical-leadership role reporting to the Director of Accelerator Platform Software. It is intentionally not buried inside a delivery team: you will maintain a cross-generation view, make durable interface decisions, and still contribute reference implementations where code is the clearest way to resolve ambiguity.
Requirements
- 10+ years of experience in low-level platform software, firmware, operating systems, runtimes, device drivers, compilers, or adjacent systems, with architecture-level ownership.
- Deep understanding of computer architecture, memory systems, concurrency, device I/O, hardware/software interfaces, and system bring-up.
- Strong C or C++ skills, paired with the judgment to choose when a specification, model, prototype, or production implementation is the right artifact.
- Proven ability to influence multiple engineering teams without relying on reporting authority.
- Demonstrated ability to turn ambiguous product and silicon goals into precise interfaces, milestones, and testable system behavior.
Nice To Haves
- Experience with AI accelerators, GPUs, networking or storage ASICs, or other high-performance devices.
- Hands-on experience spanning pre-silicon models, emulation, first silicon, and production software.
- Familiarity with trusted boot, model protection, distributed inference, KV-cache systems, or performance modeling.
Responsibilities
- Define the multi-generation platform software architecture for current Asimov silicon and at least one materially new future architecture, specifying stable, versioned interfaces for boot, commands, memory, DMA, C2C, scheduling, telemetry, errors, reset, security, and host/device interaction.
- Connect GOLD, the Asimov interpreter and runtime, libasimov, firmware, Linux, simulation, and post-silicon tools into one coherent architecture.
- Lead architecture reviews, document decisions and trade-offs, and drive cross-team issues to closure without becoming a process bottleneck.
- Build prototypes or reference code for the riskiest interfaces, and mentor senior engineers across the organization.
- Partner with Product Security and Performance Systems so that protection, observability, debuggability, and throughput are treated as first-class architectural properties.
Benefits
- Fully company-paid medical, dental, and vision insurance for you and your dependents
- Company-paid life and disability coverage, with voluntary options to add more
- Supplemental hospital, critical illness, and accident coverage available
- Unlimited paid time off, we encourage everyone to truly unplug and recharge
- 13 paid company holidays
- Remote-first culture with a company-provided computer and home office setup
- Competitive salary and equity
- 401(k) with company matching, eligible from day one
- Visa Support (H-1B visa transfers for eligible candidates)
Stand Out From the Crowd
Upload your resume and get instant feedback on how well it matches this job.
What This Job Offers
Job Type
Full-time
Career Level
Senior
Education Level
No Education Listed
