Founding ML Research Engineer — Trust & Safety, Equity

Realmlabs; Sunnyvale (CA); Hybrid; USD 180,000 - 320,000; Full time

Benefits offered by this job

Founding equity

Medical insurance

401-K

Job summary

RealmLabs is seeking a founding ML researcher with strong experience in trust and safety for LLMs. You will design experiments, author papers, and build end-to-end systems contributing to core product capabilities as part of the founding team.

The role emphasizes ownership, experimentation, and delivering concrete signals for model alignment and robustness, with a focus on multimodal LLMs and prompt-security challenges.

Qualifications

• Demonstrated research experience with leadership in a field related to ML safety and trust.

Responsibilities

• Designing and executing research experiments on LLM trust and safety
• Reading, synthesizing, and producing research papers and technical write-ups
• Building, running, and owning systems end-to-end
• Contributing to core product capabilities as a founding team member

Skills

PyTorch

HuggingFace

Transformers

Datasets

Applied deep learning

LLM fine-tuning

Education

PhD in a technical field

Tools

Docker

vLLM

Triton Inference Server

Job description

RealmLabs is seeking a founding ML researcher with strong experience in trust and safety for LLMs. You will design experiments, author papers, and build end-to-end systems contributing to core product capabilities as part of the founding team.

The role emphasizes ownership, experimentation, and delivering concrete signals for model alignment and robustness, with a focus on multimodal LLMs and prompt-security challenges.