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Job description
NENI TECHSYSTEMS INC. is hiring a Senior AI Engineer (Agentic Systems) to design, build, and deploy production-grade large language model and agentic AI solutions. This is an onsite opportunity based in Plano, TX (also listed for Columbus, OH , New York, NY , and Jersey City, NJ ), with a focus on delivering LLM-based agent systems that operate reliably in production environments.
The role emphasizes hands-on engineering across the full lifecycle of agentic systems, from orchestration and retrieval to evaluation, testing, and operational readiness, with a preference for candidates familiar with regulated domains such as Banking/Financial Services .
Responsibilities
Build and deploy production-grade LLM and agentic AI systems .
Deliver LLM-based agentic systems in production.
Requirements
7+ years of software engineering experience, with senior or lead-level ownership.
Proven experience delivering LLM-based agentic systems in production.
Strong hands-on experience with Python and Java/Spring .
Expertise with LangChain , LangGraph , or equivalent agent orchestration frameworks.
Experience with RAG , tool/function calling, multi-turn conversations, escalation, and human handoff.
Strong understanding of prompt/context engineering and agent state management .
Experience with LLM evaluation , regression testing , trace analysis , and A/B testing .
Hands-on experience with vLLM or comparable LLM inference/serving platforms and commercial LLM APIs.
Working knowledge of PyTorch and LLM/model fundamentals.
Strong distributed systems experience including APIs, queues, caching, observability, and CI/CD .
Experience implementing guardrails , PII handling , auditability , deterministic fallbacks , and production reliability.
Local to the selected location (within approximately 30–40 miles ) and able to work onsite ; no relocation candidates.
Available for an onsite interview .
Preferred
Experience with agent-building platforms such as Sierra or Decagon .
Voice agents, streaming inference, or contact-center integrations.
Experience with banking, financial services, healthcare, or other regulated-industry environments.
Experience with LangSmith , Braintrust , or custom LLM evaluation frameworks.
Knowledge of LLM safety and guardrail technologies.
Technologies
Python , Java , Spring
LangChain , LangGraph
RAG , vLLM , PyTorch
CI/CD
Work Arrangement
Onsite (in person) with an onsite interview requirement.
Locations: Plano, TX / Columbus, OH / New York, NY / Jersey City, NJ .
Pay and Hours
$55.00 - $75.00 per hour
40.0 hours per week
Visa
USC , EAD , H1B
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Worksite address
plano, TX, 75086, US
Who can apply
Review the original listing for work authorization, qualifications and employer requirements.