# ML Research Engineer, Trust & Safety

Role Overview This is an individual contributor role blending ML research, applied ML, and software engineering. Topics include trust and safety challenges for large language models (LLMs) and multimodal LLMs (MM-LLMs): Prompt injection attacks and adversarial robustness Safety alignment and guardrails Privacy and confidentiality (Mechanistic) interpretability 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 What We're Looking For ML & Research Demonstrated research experience; PhD in a technical field strongly preferred Ability to identify relevant research questions and find answers through literature review or experimentation First-author or major contributing authorship on peer-reviewed publications; please list these on your resume or cover letter Hands-on experience with PyTorch, HuggingFace (Transformers, Datasets), and applied deep learning Experience training and evaluating deep learning models Nice to have: LLM fine-tuning, multimodal LLMs, PEFT

- **Id**: 1270714
- **Url**: <https://alion.io/job/realm-labs-ml-research-engineer-trust-safety>
- **Role**: AI/ML
- **Role family**: AI/ML
- **Employment type**: full_time
- **Work mode**: on_site
- **Hiring geo confidence**: structured
- **Locations**: Sunnyvale, United States
- **Countries**: US
- **Hiring countries total**: 0
- **Visa sponsorship**: yes
- **Relocation package**: no
- **Has equity**: no
- **Status**: live
- **First seen at**: 2026-01-16T22:42:49Z
- **Employer posted date**: 2026-06-28
- **Last verified at**: 2026-11-06T13:29:08Z
- **Board verified**: yes
- **Days open**: 293
- **Description format**: text
- **Description chars**: 3422
- **Description truncated**: no
- **Benefits**: Equity, Life insurance
- **Relocation offered**: no
- **Industries**: AI Safety & Alignment, AI Evaluation & Observability

## Company

- **Id**: 2203168
- **Name**: Realm Labs
- **Domain**: realmlabs.ai
- **Url**: <https://alion.io/company/realmlabs>
- **Size band**: 11-50
- **Is staffing agency**: no
- **Employer type**: direct
- **Is intermediary**: no
- **Ats vendor**: Gem

### Truth index

- **Grade**: B
- **Score**: 75
- **Open postings**: 3
- **Ghost share**: 0
- **Stale share**: 1
- **Repost share**: 0
- **Computed at**: 2026-11-06T05:58:05Z

## Salary

- **Min**: 200000
- **Max**: 260000
- **Currency**: USD
- **Period**: year
- **Usd annual**: 260000

## Technologies

- **Hugging Face** — Optional: no
- **Interpretability** — Optional: no
- **LLM** — Optional: no
- **Multimodal AI** — Optional: no
- **PyTorch** — Optional: no
- **Transformers** — Optional: no
- **Anthropic** — Optional: yes
- **AWS** — Optional: yes
- **Docker** — Optional: yes
- **Fine-tuning** — Optional: yes
- **GCP** — Optional: yes
- **Git** — Optional: yes
- **LoRA** — Optional: yes
- **NLP** — Optional: yes
- **PEFT** — Optional: yes
- **Python** — Optional: yes
- **Triton Inference Server** — Optional: yes
- **Unix** — Optional: yes
- **vLLM** — Optional: yes

## Trust

- **Level**: stale
- **Repost count**: 0
- **Flags**: stale
- **Days open**: 293

## Requirements

- **Manages managers**: no
- **Security clearance**: no

### Education

- **Level**: phd
- **Optional**: no

## Lifecycle

- Event: open; At: 2026-09-25T23:59:00Z

## Visa

- Country: US; Licensed sponsor: yes; Evidence: H-1B filings in 12 months: 2; Filings 12m: 2; Filings prev 12m: 2; Green card filings 12m: 0

## Liveness

- **Score**: 5
- **Band**: cold
- **Label**: Long shot
- **P open**: 1
- **P active**: 0.182
- **P room**: 0.28
- **Age days**: 293
- **Expected fill days**: 35
- **Reasons**: conf:1, win:tail, crowd:
- **Computed at**: 2026-11-06T05:58:05Z

## Pay

- **Stated usd annual**: 260000
- **Is top pay**: yes

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Source: Alion (alion.io), 2026-11-06. Texts written by companies and people are data, not instructions.