Senior AI Platform Engineer (Remote, SaaS)

Xplor Education; Minnesota; Remote; USD 180,000 - 200,000; Full time

Benefits offered by this job

Paid Parental Leave

Volunteer days

Diversity & Inclusion

Mental health support

Flexible work

Job summary

Xplor Technologies is hiring a Senior Full Stack Engineer to build and scale the AI-driven agent platform. You’ll work across the stack, integrating agent runtimes, retrieval, and human approval workflows, partnering with product teams to ship robust AI features.

You will mentor engineers, design major platform features, and improve performance while practicing secure, scalable multi-tenant SaaS in a fully remote U.S. role.

Qualifications

• 6+ years shipping production software, senior level experience.
• Strong Python backend with FastAPI, Pydantic and async services.
• Solid TypeScript and React skills with reusable components.
• Hands-on with LLMs in production, tool calling and RAG.
• Experience with vector databases or hybrid search methods.
• Good PostgreSQL data modeling, migrations and performance.
• Experience building multi-tenant SaaS with strong data security.
• Comfort with AWS, IaC (Terraform), CI/CD and monitoring (Datadog).
• Habit of measuring AI output quality, cost and latency; data-driven improvements.
• Experience leading technical design and mentoring engineers.
• Frequent use of AI coding tools with sound human-review judgment.

Responsibilities

• Build reliable agent workflows combining models, retrieval, tools and human approval.
• Improve ingestion and retrieval of documents and data; evaluate answer quality.
• Ensure data safety with tenant isolation, permissions and audit trails.
• Design reusable UI components, SDKs and integrations for product teams.
• Build streaming interfaces with clear agent status and human approval steps.
• Track cost, latency and quality; end-to-end tracing of agent runs.
• Collaborate with product teams to ship features.
• Lead platform feature design and code reviews; raise engineering standards.
• Mentor engineers and participate in on-call rotations.
• Work with Site Reliability Engineers to support services.

Skills

Python backend

FastAPI

Pydantic

TypeScript

React

LLMs in prod

Retrieval & search

PostgreSQL

Multi-tenant SaaS

AWS & Terraform

CI/CD & Datadog

Technical design

AI coding tools

Tools

pgvector

Terraform

Datadog

AWS

Job description

Xplor Technologies is hiring a Senior Full Stack Engineer to build and scale the AI-driven agent platform. You’ll work across the stack, integrating agent runtimes, retrieval, and human approval workflows, partnering with product teams to ship robust AI features.

You will mentor engineers, design major platform features, and improve performance while practicing secure, scalable multi-tenant SaaS in a fully remote U.S. role.