Principal Core Science Machine Learning Scientist

Paramount•New York, NY

1d•$234,000 - $250,000

About The Position

Paramount Streaming is seeking a Principal Machine Learning Scientist to join the Core Science Group. This foundational leadership role is for a visionary focused on building the "atomic units" of the next-generation personalization ecosystem. The mission involves defining and developing Personalization Foundation Models and ML Primitives to power every surface across the Paramount streaming portfolio. As a Principal Scientist, the role operates at an organizational scale, tackling complex and ambiguous challenges in model architecture and systems engineering. Responsibilities include leading the design of agentic components for personalization products and pushing the boundaries of "AI Kernel" thinking. This position demands a unique combination of deep scientific research and low-level systems engineering (Rust, custom kernels) to ensure foundation models perform efficiently at a global scale. This role is critical for defining core models used by Applied ML pods, architecting the transition from passive recommendations to autonomous agentic components, and innovating systems to enhance the efficiency and cost-profile of the entire ML infrastructure.

Requirements

10+ years of experience in ML research and systems engineering
Mastery of PyTorch and Rust
Deep experience with inference optimization (Triton)

Nice To Haves

Published research in Foundation Models or Agentic Systems
Experience building or contributing to AI Kernels
PhD in Computer Science or related field

Responsibilities

Drive Long-term Strategy: Own the technical direction for Personalization Foundation Models, setting a 2–3 year horizon for research and implementation.
Develop ML Primitives: Build the shared libraries and foundational components used by ranking and retrieval systems across the organization.
High-Performance Engineering: Implement performance-critical components in Rust and optimize inference using Triton and custom Helion kernels.
Agentic Research: Design the orchestration and reasoning logic for agentic personalization components.
Influence & Mentorship: Shape the roadmap for both the Core Science and Applied ML groups, influencing senior leaders and mentoring the company's top technical talent.

Benefits

Attractive compensation and comprehensive benefits packages
Generous paid time off
An exciting and fulfilling opportunity to be part of one of Paramount’s most dynamic teams
Opportunities for both on-site and virtual engagement events
Unique opportunities to make meaningful connections and build a vibrant community, both inside and outside the workplace
Medical
Dental
Vision
401(k) plan
Life insurance coverage
Disability benefits
Tuition assistance program
PTO
Bonus eligible