Senior AI Platform Engineer — Remote

Xplor; Minnesota; Hybrid; USD 180,000 - 200,000; Full time

Benefits offered by this job

Parental Leave

Volunteer days

Diversity & Inclusion

Mental health support

Flexible work

Job summary

Xplor is seeking a Senior Full Stack Engineer to build AI-enabled platform components across agent runtime, retrieval, and interfaces. You will ship production-ready features, mentor peers, and help shape the technical direction of AI capabilities at scale.

Remote role across the U.S. (Eastern/Central preferred); candidates with strong Python/FastAPI, TypeScript and SaaS security will thrive in a fast-moving environment with a focus on cost, latency, and reliability.

Qualifications

• 6+ years building production software at a senior level.
• Strong Python backend experience with FastAPI and Pydantic.
• Solid TypeScript/React skills and reusable UI/SDK work.
• Hands-on with LLMs in production and AI agent workflows.
• Experience with retrieval, vector databases and RAG.
• ERP/DB modeling with PostgreSQL; security & data privacy focus.
• AWS, IaC, CI/CD, and monitoring (Datadog).
• Experience leading technical design and mentoring engineers.

Responsibilities

• Build reliable agent workflows combining models, retrieval, tools, and human approval.
• Improve ingestion and retrieval of documents and data; evaluate quality offline/online.
• Ensure tenant isolation and data security; manage permissions and audits.
• Create reusable UI components, SDKs, and integrations for product teams.
• Design trusted agent interfaces with streaming/status and approval steps.
• Monitor cost, latency, and quality; optimize for speed and scale.
• Collaborate with product teams to ship features; drive technical design docs.
• Mentor engineers and share on-call duties with SREs.

Skills

Python

FastAPI

Pydantic

TypeScript

React

LLMs in prod

Retrieval search

PostgreSQL

AWS

Terraform

CI/CD / Datadog

Multi-tenant SaaS

Security & data privacy

Tools

LiteLLM

MCP

Amazon Bedrock

pgvector

Terraform

Job description

Xplor is seeking a Senior Full Stack Engineer to build AI-enabled platform components across agent runtime, retrieval, and interfaces. You will ship production-ready features, mentor peers, and help shape the technical direction of AI capabilities at scale.

Remote role across the U.S. (Eastern/Central preferred); candidates with strong Python/FastAPI, TypeScript and SaaS security will thrive in a fast-moving environment with a focus on cost, latency, and reliability.