STEM Research Engineer (Canada)
6 - 10 years
United States
Full-time
Remote
1 month ago
About the role
STEM Research Jobs in Canada
Rex.zone is hiring a STEM Research Engineer to support applied AI/ML research and engineering workflows, including LLM training pipelines, dataset development, RLHF, prompt evaluation, and QA evaluation. This is a remote, full-time role focused on improving training data quality and measurable model performance across NLP and computer vision.
Key Responsibilities
Required Qualifications
Compensation
$30–$50 per hour (base salary).
Remote, full-time.
Rex.zone is hiring a STEM Research Engineer to support applied AI/ML research and engineering workflows, including LLM training pipelines, dataset development, RLHF, prompt evaluation, and QA evaluation. This is a remote, full-time role focused on improving training data quality and measurable model performance across NLP and computer vision.
Key Responsibilities
- Design and execute applied STEM research experiments aligned to model performance improvement and deployment constraints
- Build and maintain LLM training pipelines combining data labeling, RLHF signals, and QA evaluation outputs
- Develop prompt evaluation protocols and scoring rubrics for large language model evaluation
- Implement training data quality checks: annotation guidelines compliance, inter-annotator agreement, and sampling audits
- Run error analysis for NLP and computer vision tasks (e.g., named entity recognition and annotation edge cases)
- Support content safety labeling workflows with taxonomies, adjudication rules, and escalation criteria
- Produce reproducible documentation, experiment logs, and code to ensure traceability
- Communicate findings and recommendations to technical and non-technical stakeholders
Required Qualifications
- Mid-Senior experience in STEM research, applied ML research, or engineering research roles
- Strong Python for data processing, experiment automation, and evaluation tooling
- Hands-on experience with NLP, computer vision, or multimodal evaluation
- Knowledge of data labeling, QA evaluation, and annotation guidelines compliance
- Familiarity with RLHF and prompt evaluation methods
- Strong experiment design and statistical reasoning
- Experience collaborating in remote, cross-functional teams
Compensation
$30–$50 per hour (base salary).
Remote, full-time.
Skills
Technology, Information and Internet