"Principal Research Engineer" Jobs in United States

Principal Research Engineer, Unreal Assistant

Epic Games · Cary

WHAT MAKES US EPIC? At the core of Epic’s success are talented, passionate people. Epic prides itself on creating a collaborative, welcoming, and creative environment. Whether it’s building award-winning games or craftin

Principal Research Engineer - AI/ML

JPMorgan Chase · Jersey City

Our goal is to build the next generation of AI: autonomous agents that can reason, plan, act, and learn to solve critical problems for an industry leading financial institution. We are looking for architects who will def

Principal Research Engineer - AI/ML

JPMorgan Chase & Co. · Jersey City

Our goal is to build the next generation of AI: autonomous agents that can reason, plan, act, and learn to solve critical problems for an industry leading financial institution. We are looking for architects who will def

Principal Research Engineer

STI · Hawthorne

Systems Technology Inc. (STI) is a private, employee-owned company (ESOP) that provides engineering consulting and product development with a focus on safety. We are a small company that enjoys many of the perks of start

Principal Research Engineer

Systems Technology Inc · Hawthorne

Description What You’ll Do: The Principal Research Engineer executes a variety of highly specialized/technical, business development and leadership activities. This individual provides advanced expertise in the areas o

Principal Research Engineer IV, S2

University of Alabama in Huntsville ·

The Principal Research Engineer will provide advanced software engineering, and project management expertise in direct support of aviation platforms. The role focuses on developing reconfigurable emulated hardware and so

Principal Research Engineer, Post-Training

Character.AI · Redwood City

About the Role and Team As a Principal Research Engineer on the Post-Training team, you will drive the technical vision, execution, and evolution of the systems that transform foundation models into intelligent, engaging

Principal Research Engineer, Model Training & Post-Training

Inflection AI · Palo Alto

About Inflection AI Inflection AI is a Public Benefit Corporation empowering people with human-centered, emotionally intelligent AI. We’re shaping the future of AI by combining emotional intelligence (EQ) and raw intell

Principal Research Engineer - Control, Optimization & Safety Systems

Arm · Austin

Overview Arm is extending its “Arm everywhere” vision into robotics and embodied AI—where intelligence must operate under real-world constraints of latency, power, and safety. We are building a new robotics research lab

Principal Reverse Engineering/Vulnerability Research Engineer

Clarity Innovations · Rome

Clarity Innovations is a trusted national security partner, dedicated to safeguarding our nation’s interests and delivering innovative solutions that empower the Intelligence Community (IC) and Department of Defense (DoD

Principal Senior Vulnerability Research Engineer (Onsite)

Nightwing ·

Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to meet our customers’ most demanding challenges. Our capabilities include cyber

We anticipate the application window for this opening will close on - 19 Oct 2026 Careers that change lives start here. Medtronic is a global leader in healthcare technology with a Mission to alleviate pain, restore heal

Principal Engineer, AI Hardware Research Engineer (7870)

Taiwan Semiconductor Manufacturing · San Jose

Principal Engineer, AI Hardware Research Engineer (7870) About the Role We are seeking an exceptional AI Hardware Research Engineer to join our team in San Jose. In this role, you will drive innovation at the intersect

Sr. Principal Reverse Engineering/Vulnerability Research Engineer

Clarity Innovations · Rome

Clarity Innovations is a trusted national security partner, dedicated to safeguarding our nation’s interests and delivering innovative solutions that empower the Intelligence Community (IC) and Department of Defense (DoD

Principal Research & Development (R&D) Engineer

Treace ·

Are you a technical expert and innovative leader looking to make a significant impact in product design and development? We are seeking a Principal R&D Engineer to manage and execute key design projects while mentoring o