Principal Full Stack Engineer, B2B eCommerce
Core
Senior technical owner of Fusion's B2B eCommerce platform, designing and shipping customer-facing and internal commerce features end-to-end while building AI agents to accelerate sales and operations.
Role type
Principal Full Stack Engineer (B2B eCommerce)
Builds
Customer-facing site, internal admin portal, GraphQL/REST APIs, and production AI agents
Domain
B2B eCommerce, Electronic Components Distribution
Deliverable
product features
Required skills
B2B eCommerce architecture, Relational database design, Azure cloud, LLMs and AI agents, Infrastructure as Code, API integration
Preferred skills
Distribution/marketplace commerce, Event-driven architecture, Supply chain domain
Technologies
Next.js, React, TypeScript, Python, FastAPI, Strawberry, SQLAlchemy, Azure SQL, Redis, Algolia, Celery, Azure Service Bus, HubSpot, Amplitude, Contentful, Palantir Foundry, Terraform, GitHub Actions, Claude Code
Responsibilities
Design and deliver features across customer site, GraphQL backend, and REST services; Build internal tools for sales and operations; Operate and extend services on Azure; Build and improve production agents and LLM features; Write well-tested code and own quality; Triage and resolve user-reported issues; Make and document architecture decisions
Seniority
Principal, hands-on IC
