✦ Luna Orbit — Software Engineering

Staff+ Software Engineer, Backend

at Anthropic

📍 San Francisco, CA | New York City, NY | Seattle, WA Onsite Posted April 08, 2026
Type Full-Time
Experience lead
Exp. Years 8+ yrs
Education Bachelor’s degree or an equivalent combination of education, training, and/or experience
Category Software Engineering
8+ years of relevant experience as a backend or product engineerStrong coding fundamentalsExperience designing and delivering large-scale backend systems in productionAbility to drive alignment across technical and non-technical teams
Enterprise SaaS experienceAPI platform designDeveloper experience emphasisExperience with retrieval/knowledge systemsExperience with ML/AI research teams
Claude APIAPI CoreJenkinsTerraformGit
APIsAPIs designCloud infrastructureDistributed systemsBackend systemsPythonJavaJavaScriptReactNode.jsSQL / PostgreSQL
LeadershipCommunicationCollaborationCross-functional influenceMentorship
Industry AI & Machine Learning
staff+ software engineer backendanthropicclaude apiapi coredistributed systemsenterprise saaspermissions infrastructurebilling and pricing systemscompliance frameworksHIPAASO2API designdeveloper experienceML research teamscloud infrastructurePythonAPIsClaude APIClaudeAIbackend systemsenterprise SaaSML research
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