W2 Only Senior AI Engineer - Agentic Systems

Job Title: Senior AI Engineer — Agentic Systems

Location – Plano, TX, NY/NJ, Columbus-5 days onsite

Job Type: 12-month contract (W2, extension possible)

7+ years of software engineering experience, with senior/lead-level ownership of production systems.

• Proven hands-on delivery of LLM-based agentic systems in production — not coursework, not POCs. Expect to walk us through architecture, failure modes, and eval strategy of something you shipped.

• Strong Python (primary agent/ML stack) and Java (service integration) — both are daily-use languages here.

• Depth in the standard agent stack: LangChain, LangGraph, prompt/context engineering, tool/function calling, RAG pipelines.

• Working knowledge of PyTorch and model fundamentals — enough to fine-tune, debug model behavior, and reason about tradeoffs.

• Experience with LLM serving/inference — vLLM or comparable (TGI, TensorRT-LLM), plus commercial APIs (OpenAI, Anthropic, Bedrock/Vertex).

• Solid distributed-systems fundamentals: APIs, queues, caching, observability, CI/CD.

Major Plus

• Hands-on experience with agent-builder platforms such as Sierra or Decagon — deploying, extending, or evaluating them for customer-service use cases.

• Voice agents, real-time/streaming inference, or contact-center integration.

• Experience in regulated industries (finance, healthcare) — model risk, compliance review, audit trails.

• Eval frameworks (LangSmith, Braintrust, custom harnesses) and LLM safety/guardrail tooling.