Java Developer - IV

Position: Java Developer - IV
Location: Alpharetta, Georgia
Duration: Contract
Job ID: 179538

Job Overview:
We are seeking a skilled and forward-thinking Java Developer to design, build, and deploy autonomous AI agents and multi-agent systems. In this role, you will go beyond traditional static prompt engineering to create resilient, decision-making agentic workflows capable of planning, tool use, memory management, and autonomous execution to solve complex, multi-step real-world tasks. You will collaborate closely with product managers, data engineers, and domain experts to take cutting-edge LLM agent architectures from research concepts into scalable, production-ready enterprise applications.

Responsibilities:

• Architect and implement autonomous AI agents using modern frameworks (e.g., LangGraph, CrewAI, AutoGen, LlamaIndex, or custom orchestration loops).
• Design agent reasoning architectures, including ReAct loops, Plan-and-Solve patterns, Reflection/Self-Correction mechanisms, and hierarchical multi-agent structures.
• Construct robust tool-use pipelines enabling agents to seamlessly call external APIs, query databases, execute code, and interact with enterprise software.
• Integrate Long-Term Memory systems (vector databases, semantic search, key-value state stores) and Short-Term/Context Memory management strategies.
• Implement structured input/output parsing (Pydantic, JSON Schema) to guarantee reliable communication between model calls and execution environments.
• Build fallback mechanisms, human-in-the-loop (HITL) checkpoints, and deterministic guards around non-deterministic AI decisions.
• Establish evaluation pipelines (using tools like Ragas, TruLens, or LangSmith) to benchmark agent accuracy, execution speed, trajectory quality, and tool failure rates.
• Monitor runtime performance, API usage costs, latency, and context-window token optimization across complex multi-step trajectories.
• Debug non-deterministic failures, looping behaviors, and hallucinations in multi-step agent execution paths.

Qualifications:

• Bachelor's or Master's degree in Computer Science, AI, Software Engineering, or equivalent practical experience with 1-2+ years focused on LLM/AI applications.
• Expert-level proficiency in Python (TypeScript/JavaScript experience is a plus).
• Demonstrated experience building with frameworks like LangGraph, CrewAI, Microsoft AutoGen, LlamaIndex Agents, or Semantic Kernel.
• Proven track record building RESTful APIs, OpenAPI specifications, function calling architectures, and model tool definitions.
• Hands-on experience with vector search engines (Pinecone, Qdrant, Milvus, Weaviate, or Chroma) and hybrid retriever architectures.
• Strong background in asynchronous programming, microservices, Docker/Kubernetes, CI/CD, and unit/integration testing for non-deterministic AI systems.

About PTR Global: PTR Global is a leading provider of information technology and workforce solutions. PTR Global has become one of the largest providers in its industry, with over 5000 professionals providing services across the U.S. and Canada. For more information visit ;br>
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Pay Range: $60 - $70

The specific compensation for this position will be determined by several factors, including the scope, complexity, and location of the role, as well as the cost of labor in the market; the skills, education, training, credentials, and experience of the candidate; and other conditions of employment. Our full-time consultants have access to benefits, including medical, dental, vision, and 401K contributions, as well as PTO, sick leave, and other benefits mandated by applicable state or localities where you reside or work.

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During the hiring process, we may use artificial intelligence (AI) tools to assist in evaluating information related to your application. These tools may help analyze job-related qualifications or assist recruiters in reviewing applications and interview responses. AI-generated information is one factor considered in our hiring process. Final employment decisions are made by qualified hiring personnel and are not based solely on AI-generated recommendations.
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