AI Platform Engineer

Prophecy Technologies

$120K — $145K *
Enterprise Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • 4-6 years of experience in a relevant engineering role.
  • Proficient in production LLM systems and structured outputs.
  • Experience with multi-agent orchestration and A2A protocols.
  • Expert in vector search and embeddings at scale.
  • Strong programming skills in Python 3.11+, FastAPI, and async I/O.
  • Familiarity with modern LLM stacks and agent frameworks.
  • Solid understanding of cloud platforms, including Kubernetes and workflow orchestration.

Responsibilities

  • Develop an LLM-driven orchestrator for user intent routing across specialized agents.
  • Implement an agent selection layer utilizing hybrid retrieval and closed-set LLM selection.
  • Build a multi-agent SDK/gateway using FastAPI and manage agent tool registries.
  • Create tool-driven agents with dynamically composed tools, ensuring proper contracts and evaluation.
  • Design a data API layer with parameterized endpoints between agents and databases.
  • Facilitate partner-team onboarding with versioned contracts and auto re-embedding.

Benefits

  • Flexible work environment to promote work-life balance.
  • Opportunities for professional growth and learning.
  • Access to advanced technology and AI resources.
  • Collaborative and innovative team culture.
Full Job Description
Role Overview:

This role involves building and scaling a production multi-agent AI platform designed to serve thousands of internal users across various business units. The platform will operate with a monthly release cadence, addressing real-world challenges related to user experience, latency, and cost efficiency.

Key Responsibilities:
  • Develop an LLM-driven orchestrator for routing user intent across a portfolio of specialized agents, managing delegation, memory, response validation, and capability discovery.
  • Implement an agent selection layer utilizing hybrid retrieval (vector RAG over a capability registry) and closed-set LLM selection with JSON-schema-constrained outputs.
  • Build a multi-agent SDK/gateway using FastAPI, hosting multiple agents behind path-prefix routing, managing per-agent tool registries, and session-scoped conversational context.
  • Create tool-driven agents with 15-30 dynamically composed tools by an LLM, ensuring tool contracts, guardrails, and evaluation.
  • Design and implement a data API layer with parameterized endpoints between agents and databases, ensuring LLMs do not directly interact with databases.
  • Facilitate partner-team onboarding, including versioned A2A contracts, bring-your-own-agent registration, and auto re-embedding.

Required Skills:
  • Proficiency in production LLM systems, including RAG, tool/function-calling loops, structured outputs, hallucination guards, and closed-set selection.
  • Experience with multi-agent orchestration, A2A protocols, session affinity, human-in-the-loop gating, kill switches, and graceful degradation.
  • Expertise in vector search and embeddings at scale, achieving sub-second retrieval over thousands of documents.
  • Knowledge of evaluation & safety practices: PII/PHI masking, audit trails, feedback-loop instrumentation, and offline + online evaluation.
  • Strong programming skills in Python 3.11+, FastAPI, async I/O, and Pydantic.
  • Familiarity with modern LLM stacks such as Gemini, GPT, Claude, and agent frameworks like LangGraph and other Agent SDKs.
  • Cloud platform experience (GCP or AWS), including Kubernetes, object storage, workflow orchestration, and Vertex/Bedrock-class services.
  • Database and caching experience with Redis, MongoDB, Oracle/Postgres, and knowledge of SSO + RBAC.
  • Understanding of observability tools and practices: Prometheus, structured JSON logs, per-decision audit trails, and p95 latency SLOs.
  • Skills in Machine Learning, Artificial Intelligence (AI), and Generative AI.

Qualifications:
  • 4-6 years of experience in a relevant engineering role.

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