Performance Modeling Engineer ~2

Skills

About the Role

You will support the development and application of modeling tools used to evaluate AI system performance. Partnering with senior engineers and the Performance Modeling Lead, you'll run simulations and analytical models, find bottlenecks, validate models with benchmarking data, and turn findings into clear recommendations. This early-career role suits someone with 1–2 years of experience. It is based in San Francisco with a hybrid schedule of 3 days in the office per week.

Requirements

• 1–2 years of experience in software engineering, systems modeling, performance analysis, or related work
• Strong programming skills and experience building technical tools, scripts, or frameworks
• Familiarity with system architecture fundamentals
• Ability to reason about system performance, bottlenecks, and scaling
• Strong analytical and problem-solving skills
• Ability to learn quickly and work across technical teams

Responsibilities

• Support development and maintenance of performance modeling tools and frameworks
• Assist in building models to evaluate system behavior across compute, memory, networking, and interconnect
• Analyze distributed system scaling behavior and identify bottlenecks
• Run simulations and analytical models to support architecture decisions
• Partner with senior engineers to evaluate design tradeoffs
• Interpret modeling outputs into clear recommendations
• Validate models using benchmarking data and real measurements
• Improve modeling workflows, documentation, and usability
• Collaborate cross-functionally with hardware, infrastructure, and architecture teams

Benefits

• Equity
• Medical, dental, and vision insurance with employer HSA contributions
• Pre-tax Health FSA, Dependent Care FSA, and commuter accounts
• 401(k) with employer match
• Paid parental leave (up to 24 weeks for birth parents and 20 weeks for non-birthing parents)
• Paid medical and caregiver leave (up to 8 weeks)
• Flexible PTO for exempt employees; up to 15 days for non-exempt employees
• 13+ paid company holidays and coordinated office closures
• Paid sick or safe time
• Mental health and wellness support
• Employer-paid basic life and disability coverage
• Annual learning and development stipend
• Daily meals in offices and meal delivery credits
• Relocation support
• Charitable donation matching and wellness stipends
• Performance-related bonus