Senior Full Stack Engineer
Core
Build a shared AI platform (agent runtime, retrieval, guardrails) powering AI features across Xplor's portfolio of products for 130,000+ businesses.
Role type
Senior Full Stack Engineer (AI Platform)
Builds
AI agent runtime, model gateway, retrieval engine, and developer SDKs/integrations
Domain
AI Engineering / SaaS / Multi-tenant
Deliverable
production ML models
Required skills
Python (FastAPI, async), TypeScript, React, LLMs (RAG, tool calling, agent workflows), Vector databases (pgvector), PostgreSQL, AWS, Terraform, CI/CD, Datadog
Preferred skills
Multi-agent systems, MCP, LiteLLM, Amazon Bedrock, Automated LLM evaluations, Prompt-injection defenses, Streaming UIs, SOC 2/PCI DSS experience
Technologies
Python, FastAPI, Pydantic, TypeScript, React, PostgreSQL, pgvector, AWS, Terraform, Datadog, MCP, LiteLLM, Amazon Bedrock
Responsibilities
Build reliable agent workflows combining models, retrieval, tools, and human approval; Improve document ingestion and retrieval with automated evaluations; Ensure tenant isolation and data security; Build reusable UI components, SDKs, and integrations; Design trustworthy agent interfaces with streaming responses; Track cost, latency, and quality; Lead technical design and mentor engineers
Seniority
Senior, hands-on IC