CareerPlan

AIML - Sr Machine Learning Platform Engineer, Evaluation

Seattle, United States of AmericaFull-time2026-11-06 → 2026-11-10

Core

Design and build evaluation infrastructure, benchmarks, and simulation environments to refine Apple's foundation models and agents.

Role type

Senior IC machine learning platform engineer (evaluation)

Builds

Evaluation systems, LLM judges, reward models, prompt optimization pipelines, and simulation environments

Domain

Artificial Intelligence / Machine Learning / Foundation Models

Deliverable

production ML models

Required skills

Machine learning, distributed systems, LLM evaluation, reward modeling, prompt optimization, simulation environments, Python, PyTorch, JAX, technical leadership

Preferred skills

Agentic systems, trajectory-based data generation, on-device ML, post-training (SFT, DPO, RLHF)

Technologies

Python, PyTorch, JAX

Responsibilities

Designing and building evaluation infrastructure for agents and foundation models; Developing LLM judges and reward models calibrated against human feedback; Building and integrating simulation environments for agent evaluation; Developing prompt and context optimization pipelines; Setting technical direction for the evaluation system

Seniority

Senior, hands-on IC