Member of Technical Staff, Functional and Performance Modeling (AI)

Location: On-site in Santa Clara, CA or Boston, MA

Company

hirify.global is an early-stage company developing high-performance computing infrastructure to improve the efficiency and capability of AI systems.

What you will do

• Build and maintain system-level, rack-scale, and chip-level performance models for high-bandwidth data movement between scale-up devices.
• Model workloads from software memory access patterns through network data distribution to on-device memory channels.
• Collaborate with silicon architects, system designers, and workload owners to align performance expectations and constraints.
• Identify performance bottlenecks, scaling limits, and sensitivity points across compute, memory, and interconnects.
• Communicate modeling assumptions, limitations, and conclusions to technical and non-specialist stakeholders.

Requirements

• Bachelor’s or Master’s degree in Electrical Engineering, Computer Engineering, or a closely related field.
• 5–10+ years of experience in performance modeling for data movement devices such as NICs, CXL memory expansion cards, IPUs/DPUs, or NoCs.
• Ability to reason across multiple abstraction layers, from architectural details to system-level performance behavior.
• Experience exploring design tradeoffs, validating performance assumptions, and identifying bottlenecks early in development.
• On-site work is required from the Santa Clara or Boston office.

Nice to have

• Experience modeling networking protocols with memory semantics.
• Familiarity with shared memory systems and frameworks such as CUDA VMM.
• Knowledge of AI/ML workloads, including large language model inference, sharding, KV caching, and continuous batching.
• Experience with scale-up and high-bandwidth interconnects such as NVLink, as well as memory subsystem modeling.

Culture & Benefits

• Performance-based bonus and early-stage equity grant.
• Employer-paid health, dental, vision, life, disability, and AD&D insurance.
• 401(k) match with immediate vesting, fitness stipend, wellness benefits, and mental health support.
• 20 vacation days, 15 company holidays, including three floating holidays, plus a daily lunch stipend.
• Enterprise-level Claude and ChatGPT access, well-equipped offices, on-site parking, and EV charging.
• Collaborative, continuous-learning environment focused on rigor, clarity, first-principles thinking, and high-performance computing architecture.

Hiring process

• Visa sponsorship and relocation assistance are available for relocation to one of the office hubs.