Senior Staff/Principal Engineer, Foundation Model Compute Infra

Role Number: 200693167-3760

Summary

Apple is where individual imaginations gather together, committing to the values that lead to great work. Every new product we build, service we create, or Apple Store experience we deliver is the result of us making each other’s ideas stronger. That happens because every one of us shares a belief that we can make something wonderful and share it with the world, changing lives for the better. It’s the diversity of our people and their thinking that inspires the innovation that runs through everything we do. When we bring everybody in, we can do the best work of our lives. Here, you’ll do more than join something — you’ll add something!

Description

As a Senior Staff/Principal Engineer on the Foundation Model Compute Infrastructure team, you will architect, build, and operate large-scale infrastructure powering foundation model training, fine-tuning, evaluation, and inference. You will tackle challenging problems in distributed scheduling, accelerator utilization, cluster management, fault tolerance, and large-scale job orchestration. You will work with cloud and hardware partners to bring new TPU generations into production and build the tools and services that enable researchers to launch, monitor, debug, and profile their workloads without needing deep infrastructure expertise. You'll develop model inference and fine-tuning services, build secure, scalable sandbox infrastructure for running AI agents, code execution, and reinforcement learning environments at massive scale, and work closely with foundation model researchers and engineers to improve performance, reliability, scalability, and developer productivity. This is a deeply hands-on technical leadership role. You will write, review, and debug production code, lead complex architectural decisions, and use modern AI-assisted development tools to accelerate engineering execution and raise the quality bar across the team.

Minimum Qualifications

• 8+ years of experience designing and building distributed systems or large-scale infrastructure, with demonstrated technical leadership.

• Strong hands-on experience with Kubernetes, cloud infrastructure, and operating production systems at scale.

• Proficiency in Python, Go, C++, or other programming languages used for infrastructure and distributed systems.

• Experience with accelerator infrastructure and machine learning training or inference workloads.

• Excellent written and verbal communication skills, with experience authoring technical design documents and driving collaboration across teams.

Preferred Qualifications

• Hands-on experience operating TPU, GPU, or other large-scale accelerator fleets.

• Experience scaling distributed training or inference workloads across thousands of accelerators.

• Familiarity with JAX, XLA, and distributed machine learning frameworks, including performance analysis and profiling.

• Experience developing LLM-based agents or AI-assisted developer and infrastructure operations tools.

• Deep knowledge of distributed scheduling, resource allocation, multi-tenant quota management, or cluster autoscaling.

Apple is an equal opportunity employer that is committed to inclusion and diversity. We seek to promote equal opportunity for all applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, Veteran status, or other legally protected characteristics.