Looking for staff software engineer jobs in San Francisco? Anthropic is hiring a Staff Software Engineer, Code RL for hybrid roles in San Francisco, New York City or Seattle, and states that it sponsors visas.
Photo: Software engineer at work via Wikimedia Commons.
Staff Software Engineer Jobs in San Francisco: Overview
| Job Title | Staff Software Engineer, Code RL |
| Employer | Anthropic |
| Location | San Francisco, CA | New York City, NY | Seattle, WA (hybrid) |
| Salary | $405,000–$625,000 per year |
| Job Type | Full time |
| Experience | Not specified in the available job information |
| Visa Sponsorship | Sponsored (not guaranteed for every candidate) |
| Closing Date | Not specified in the available job information |
About the Employer
Anthropic is a public benefit corporation headquartered in San Francisco focused on building reliable, interpretable and steerable AI systems. The Code RL team works on reinforcement learning environments and infrastructure that improve Claude’s coding capabilities.
Job Responsibilities
- Design widely used APIs, frameworks and abstractions for agentic RL environments
- Embed with research teams on a rotational basis and transfer ownership of systems
- Improve reliability and structure in research codebases without slowing research
- Anticipate and prevent silent failure modes through type safety, testing and design
- Contribute to monitoring, regression detection and triage for production RL systems
- Help define engineering standards, review practices and mentor team members
Requirements
- Deep expertise in Python including static typing, safe async/concurrency and performant code
- Track record designing intuitive, safe APIs or frameworks adopted by other teams
- Experience working productively in large or research-style codebases you did not originally write
- Ability to anticipate failure modes (especially silent ones) and prevent them structurally
- Strong written and verbal communication skills
- Comfort with ambiguity and scoping loosely defined problems
- Preferred: experience with ML/RL workflows, distributed systems, sandboxing, large-scale data processing or open-source maintenance
Visa Sponsorship and International Applicants
Anthropic states: “We do sponsor visas! However, we aren’t able to successfully sponsor visas for every role and every candidate. But if we make you an offer, we will make every reasonable effort to get you a visa, and we retain an immigration lawyer to help with this.” Hybrid policy requires at least 25% time in office. Sponsorship is not guaranteed for every candidate.
Salary and Benefits
- Competitive compensation and optional equity donation matching
- Generous vacation and parental leave
- Flexible working hours
- High salary range
- Visa sponsorship stated
- Interesting RL systems work
- Sponsorship not guaranteed for every candidate
- Hybrid office requirement
- Competitive staff-level bar
How to Apply
Apply on Anthropic’s Greenhouse board. A CV is required; a cover letter is optional. Applications are reviewed on a rolling basis.
Application Tips
- Highlight concrete examples of API or framework design that other teams adopted
- Be ready to discuss how you prevent silent failures in complex systems
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