Staff Software Engineer, Core
Core
Architecting and leading the development of foundational backend services, APIs, and data models that power the entire business, with a specific focus on building the AI/LLM infrastructure for the company.
Role type
Staff Software Engineer (Backend & AI Infrastructure)
Builds
Core platform services, APIs, data models, and AI/LLM infrastructure (agent frameworks, eval pipelines, RAG)
Domain
E-commerce / AI Infrastructure
Deliverable
production ML models
Required skills
JavaScript/TypeScript (Node.js), Platform and systems architecture, Secure coding practices, CI/CD pipeline ownership, AI/LLM infrastructure experience, Technical leadership, Event-driven architectures
Preferred skills
E-commerce background, Monolith decomposition, Third-party systems integration, Open-source contributions
Technologies
Node.js, JavaScript, TypeScript, LLMs, Agents, RAG, Claude Code, Codex, Cursor
Responsibilities
Architect and build core platform services and APIs; Drive platform technical strategy and adoption of new technologies; Build AI foundation services for LLM and agent integration; Engineer for scale, reliability, and security; Own contracts and backward compatibility for downstream teams; Manage reliability, monitoring, and incident response; Mentor engineers and foster technical excellence; Collaborate with product and leadership across business lines.
Seniority
Staff, hands-on IC with strategic leadership