Senior Staff Software Engineer API
AI safety and research company building reliable, interpretable, and steerable AI systems, including the Claude product family and developer platform.
Maintainer signals as of 9/24/2026
Funding history
About Anthropic
Anthropic PBC develops frontier AI systems and deploys them through Claude products and the Claude Platform, with a stated focus on safety, interpretability, and steerability.
Skills
Candidate Availability
Required and preferred rules are kept separate and reflect the wording in the original posting.
About the Role
You will define multi-year API technical strategy and lead complex initiatives across API engineering. You will make major architectural decisions, integrate frontier capabilities, collaborate across technical functions, mentor staff engineers, align stakeholders, and address systemic technical risks.
Requirements
- 12+ years of engineering experience
- Staff or Senior Staff engineering experience
- Technical strategy experience for large-scale API or distributed systems platforms
- Distributed systems expertise
- API architecture expertise
- Design documentation
- Architectural decision-making
- Critical-path coding
- Cross-functional collaboration
- API design
Responsibilities
- Define and drive multi-year technical strategy for the API
- Lead high-complexity engineering initiatives across multiple teams
- Make major architectural decisions with organization-wide scope
- Partner across research, inference, platform, infrastructure, and safeguards functions
- Mentor and develop staff-level engineers
- Drive alignment across product, go-to-market, and safety stakeholders
- Identify and address systemic technical risks
Benefits
- Visa sponsorship support
- Optional equity donation matching
- Generous vacation
- Parental leave
- Flexible working hours
