Anthropic

Staff+ Software Engineer, Backend

Anthropic
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5 months ago
Seattle, WA, USA +2 moreStaff+
H1B Sponsor

Base Salary

$405k - $485k/yr

Responsibilities

  • Own backend systems powering the Claude API, Claude Code, and Claude.ai.
  • Scope and lead complex multi-month projects through ambiguous problem spaces and guide peers through technical and product decisions.
  • Make architectural decisions affecting the reliability and scalability of systems serving hundreds of thousands of global users.
  • Build and scale API serving infrastructure, model capabilities, knowledge retrieval, developer tools, agent infrastructure, or enterprise foundations depending on team placement.
  • Partner with product, engineering, inference, safeguards, research, and other teams to productionize model capabilities and address capability gaps.
  • Develop systems and operational processes that improve team effectiveness and prevent recurring production failures.
  • Remain hands-on with backend code, APIs, integrations, and AI models.

Requirements

  • 8+ years of relevant backend or product engineering experience, including leadership of complex multi-month projects or teams as a tech lead or equivalent.
  • Strong coding fundamentals and experience across backend systems, APIs, integrations, and, when needed, frontend work.
  • Experience designing and delivering large-scale production backend systems for high-adoption B2B or consumer products.
  • Experience with distributed systems, API design, and cloud infrastructure at scale.
  • Strong cross-functional communication, technical alignment, mentorship, and ability to navigate ambiguity.
  • Preferred experience as a technical lead or architect owning product or API platform vision and execution.
  • Preferred experience scaling reliable APIs, enterprise SaaS platforms, permissions, billing, pricing, compliance, or sensitive domain-specific data systems.
  • Preferred experience partnering with ML/AI research teams, building agentic systems, orchestration frameworks, developer tools, or AI-assisted coding environments.
  • Preferred experience with product adoption and activation funnels or production operational processes such as incident response, on-call rotations, and postmortems.
  • Bachelor’s degree or equivalent combination of education, training, and/or experience in a relevant field.

Benefits

  • Hybrid policy requiring staff to work from an office at least 25% of the time, with some roles requiring more.
  • Visa sponsorship may be available, with immigration lawyer support.
  • Competitive benefits including optional equity donation matching, generous vacation and parental leave, flexible working hours, and office collaboration space.

Categories

Anthropic

About Anthropic

501-1,000 employees

We're an AI research company that builds reliable, interpretable, and steerable AI systems. Our first product is Claude, an AI assistant for tasks at any scale. Our research interests span multiple areas including natural language, human feedback, scaling laws, reinforcement learning, code generation, and interpretability.