ReFiBuy.ai · 5 months ago
Fullstack Engineer
Raleigh, NC
Full-time
Onsite
Mid Level
3+ years expReFiBuy.ai is a seed-stage startup focused on building an AI-native e-commerce platform. The Fullstack Engineer role involves developing end-to-end features using Next.js and C#/.NET, with a strong emphasis on creating a polished user experience and integrating advanced AI components.
Retail
No H1B
Responsibilities
Build product experiences in Next.js + TypeScript with polished UX
Design resilient .NET services and event-driven workflows (idempotency, retries, DLQs)
Integrate and evaluate LLMs/agents: retrieval, tools, and guardrailsOwn features end-to-end: schema/design, API contracts, tests, telemetry, rollout and learnings
Contribute to platform/devex: CI/CD, preview envs, codegen/AI coding tools, internal libraries
Qualification
Required
3+ years with modern TypeScript/React or C#/.NET shipping production apps
Solid grasp of SSR, state management, API design, and relational data modeling
Experience with containers and cloud deployment
Version control and code review hygiene (Git), automated testing fundamentals
Applicants must have permanent work authorization in the US; we are not sponsoring visas for this role
This is an in-office position, we are default ‘in office' and if you are not in the Raleigh, NC/Triangle area, you must relocate at your own expense, we do not have a relocation package/budget for this role
Preferred
Next.js App Router, React Server Components, Tailwind/shadcn
.NET 9, minimal APIs, background jobs, Clean Architecture, CQRS
Event-driven messaging (Dapr)
Vector databases, RAG, LLM tool use/agents, prompt/response evaluation
E-commerce: catalogs, marketplaces (Amazon/Walmart/eBay), feeds
Benefits
Health, Dental, Vision - 80% of base plan covered by ReFiBuy
401k w/ match: 100% of contribution up to 1% of salary and 50% up to 5%, no vesting
Incentive Stock Options (ISOs) - As an early stage startup, you get in on the ground floor, 4yr quarterly vesting.
Parking is covered by ReFiBuy
Company
ReFiBuy.ai
AI is transforming commerce faster than any channel shift in history. But the consumer journey is the same: Research → Find → Buy.
11-50 employees
Funding
Current Stage
Early StageCompany data provided by crunchbase