Hiring.Camp

Principal Research Engineer, Post-Training

Character AI

·

Jun 22, 2026

Apply
Salary
$275k – $400k/yr
Location
Redwood City, CA
Type
Full-time
Department
Technical Staff - ML
Seniority
Lead
Education
PhD
Source
Ashby

Skills

DockerKubernetesMachine Learning

Similar Jobs

30

Principal Research and Development Engineer, Dispensing

Nordsonhcm·Taiwan - Hsinchu

2d ago

Executive Director - Quantitative Research Principal Software Engineer

JPMorgan Chase·Jersey City, NJ

3d ago

Executive Director - Quantitative Research Principal Software Engineer

JP Morgan Chase·Jersey City, NJ

3d ago

Principal Reverse Engineering/Vulnerability Research Engineer

Clarity Innovations·Herndon, VA +1

1w ago

Principal Research Engineer - Materials Discovery Research Institute

Ulse·Skokie, IL

1w ago

Lead Principal Engineer Research & Development

Infineon·Graz, AT

1w ago

Principal Developer - Next Generation Sequencing - Translational Research, Innovation & Test Development Office (TRITDO)

Mayo Clinic·Rochester, MN

1w ago

Sr Principal Research Engineer

HERE·Krakow, PL

1w ago

Principal Applied Research Engineer, Content Authenticity

Nvidia·Santa Clara, CA

2w ago

Principal Applied Research Engineer, Content Authenticity

Nvidia·Santa Clara, CA

2w ago

Principal Research Software Engineer

Cochlear·BE Mechelen, Belgium

2w ago

Principal Engineer, Research Science Engineering

Analogdevices·San Jose, CA

3w ago

Principal Engineer, AI Applied Research

Intel·USA - OR - Hillsboro, US

3w ago

Principal Engineer, AI Applied Research

Intel·USA - OR - Hillsboro, US

3w ago

Principal Mechanical Engineer II, Next-Gen Sequencing Systems, Research & Early Development

Roche·Santa Clara, US

4w ago

Principal Engineer, Architecture & Performance Research Engineer for Data Center and Agentic AI CPU

Samsung Semiconductor·San Jose, California·Onsite

1mo ago

Principal Research Infrastructure Engineer & Team Lead - IT Services - 107907 - Grade 9

UoB Employee·GB, UK

1mo ago

Principal Space Systems Research and Development Engineer

BlackSky·Herndon, VA +2·Remote, Onsite

1mo ago

Sr. Principal Reverse Engineering/Vulnerability Research Engineer

Clarity Innovations·Remote·Remote

1mo ago

Autonomy Engineer, Ops Research (Senior - Principal)

Trueanomalyinc·Denver, CA +2

1mo ago

Materials Research Engineer -- Principal Engineer

Western Digital·San Jose, CA

1mo ago

Sr. Principal Reverse Engineering/Vulnerability Research Engineer

Clarity Innovations·Herndon, VA +1

1mo ago

Principal Reverse Engineering/Vulnerability Research Engineer

Clarity Innovations·Herndon, VA +1

1mo ago

Principal Staff Engineer, AI Platform Research, Data Science (Remote)

Crowdstrike·USA CA Remote, US·Remote

1mo ago

Sr. Executive Research Recruiter, Principal Engineer Recruiting Team

Amazon

1mo ago

Principal Mechanical Engineer, Next-Gen Sequencing Systems, Research & Early Development

Roche·Santa Clara, US·Onsite

2mo ago

Principal Peptide Process Engineer, Research Scientist II

AbbVie·North Chicago, IL·Onsite

2mo ago

Principal Research Engineer, Model Training & Post-Training

Inflection AI·Palo Alto, California·Remote, Hybrid

2mo ago

Principal Senior Vulnerability Research Engineer (Onsite)

Nwis·MD230: 300 Sentinel Drive Suite300 AJ 300 Sentinel Drive Suite 300, MD·Onsite

2mo ago

Principal Research & Development (R&D) Engineer

Motorola Solutions·Los Angeles, CA +3·Remote

4mo ago