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AI Platform Engineer

Square Hiring

 

Dallas, TX, USA

Posted On: 4 days ago
Experience: 5+ years
Availability: Onsite
Openings: 1
Category: AI Platform Engineer
Tenure: Contract - Corp-to-Corp
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Description

You will build and maintain the multi-agent orchestration platform, managing the infrastructure that routes user intent across specialized agents.

This role is on-site.

Responsibilities

  • Design and implement the LLM-driven orchestrator responsible for delegation, memory management, response validation, and capability discovery.
  • Develop the agent selection layer using hybrid retrieval (vector RAG over a capability registry) and closed-set LLM selection with JSON-schema-constrained outputs.
  • Build the multi-agent SDK and gateway using FastAPI, implementing path-prefix routing, per-agent tool registries, and session-scoped conversational context.
  • Manage tool-driven agents (15–30 tools per agent), owning tool contracts, guardrails, and evaluation metrics.
  • Construct the Data API layer with parameterized endpoints between agents and databases, ensuring LLMs never access databases directly.

Required Skills

  • 5+ years of experience in software engineering, with a focus on backend services and APIs.
  • Strong proficiency with Large Language Models (LLMs) and their integration patterns.
  • Experience with JSON schema validation and constraint handling.
  • Proficiency in building RESTful APIs using FastAPI or similar frameworks.
  • Knowledge of vector databases and RAG (Retrieval-Augmented Generation) architectures.
  • Understanding of multi-agent systems, orchestration, and microservices.

Preferred Skills

  • Experience with agent-to-agent (A2A) contracts and partner-team onboarding workflows.
  • Familiarity with auto-embedding pipelines and dynamic tool composition.

Key Skills
Education

Any Gradute

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