# Staff+ Research Engineer, RL Data Platform at Anthropic

> Open role observed by RunReq as of 2026-08-30T19:48:35.735059+00:00.

## Role details

- Company: [Anthropic](http://runreq.com/company/anthropic/index.md)
- Location: San Francisco, CA \| New York City, NY
- Team: AI Research & Engineering
- Compensation: $500K–$850K /YR
- First observed: 2026-08-28T01:43:13.593540+00:00
- Days open: 3
- Employer posting: [View the authoritative posting](https://job-boards.greenhouse.io/anthropic/jobs/5404725008)

## Shortened description

### Key responsibilities

- Design and operate feedback and data collection interfaces for human annotators, domain experts, and internal researchers.
- Build backend services, APIs, and data pipelines that send model samples to humans and return structured feedback for training.
- Own reliability, latency, and usability for systems that run against live model endpoints.
- Partner with RL researchers to scope collection campaigns and build tools for data quality and throughput.

### Qualifications needed

- A bachelor degree or equivalent education, training, or experience in a relevant field is required, with office work expected at least 25% of the time.
- Production full-stack experience with TypeScript/React on the frontend and Python on the backend.
- Experience designing and operating backend services and data pipelines used by other teams.
- Experience owning projects from an ambiguous brief through production and using AI tools in daily work.

## Hiring context

- Open roles on this team: 66
- Newly observed on this team in 30 days: 6
- Company median days open: 44

## Interpretation

- RunReq records observed job postings; it does not show applicant volume or completed hires.
- The linked employer posting is authoritative for the full description and application process.
- Human-readable job page: http://runreq.com/jobs/9829a501-d296-8ef2-a48c-bb1795105ac2
- Site-wide agent directory: http://runreq.com/llms.txt