Agentic AI Developer (Python) - Vertex AI RAG + Graph | Berkley Heights, NJ - Onsite | Contract W2

Role: Agentic AI Developer (Python) - Vertex AI RAG + Graph/Vector Datastores Location: Berkley Heights, NJ (5 Days Onsite) Duration: Long term Contract Employment Type: Must work on Next Gen Software Solutions LLC's W2 Role summary We're looking for a strong Agentic AI developer who can build and productionize Vertex AI based RAG systems (Vertex AI Search / Vertex AI RAG patterns), design reliable tool-using agents, and work comfortably with vector databases and graph databases. You'll own end-to-end delivery: ingestion retrieval agent orchestration evaluation deployment. What you'll do Design and implement RAG pipelines on Google Cloud / Vertex AI (chunking, embeddings, indexing, retrieval, reranking, grounding). Build agentic workflows (tool use, planning, reflection/guardrails, structured outputs) using Python-first frameworks. Integrate agents with Graph DBs (e.g., Neo4j, JanusGraph, Neptune) and Vector DBs (e.g., Vertex Vector Search, Pinecone, Weaviate, Milvus, pgvector). Create robust data ingestion/ETL from PDFs, docs, webpages, and internal sources; implement metadata strategy and access control. Define and run evaluation (retrieval metrics, answer quality, hallucination/grounding checks), and improve system quality iteratively. Ship to production: APIs, monitoring/observability, cost/performance optimization, CI/CD, and security best practices. Must-have skills Strong Python (clean architecture, async, testing, typing, packaging). Proven experience building RAG solutions (hybrid search, reranking, chunking strategies, embeddings, prompt + schema design). Hands-on with Vertex AI and GCP fundamentals (IAM, logging/monitoring, Cloud Run/GKE, storage). Experience with at least one agentic framework (e.g., LangGraph/LangChain, LlamaIndex, Semantic Kernel, AutoGen) and tool/function calling patterns. Solid knowledge of vector search concepts and at least one vector DB in production. Comfortable with graph data modeling and graph querying (Cypher/Gremlin/SPARQL basics). Strong engineering practices: code reviews, testing, telemetry, secure-by-design, reliability mindset. Nice-to-have Knowledge graphs for RAG (entity linking, graph traversal + retrieval fusion). Streaming/messaging (Pub/Sub, Kafka), document pipelines (Document AI), and multilingual retrieval. Experience with evaluation tooling (RAGAS, TruLens, custom eval harnesses), prompt/version management. Frontend integration (basic React/Next.js) or platform enablement (internal developer tooling). About Next Gen Software Solutions LLC: Next Gen Software Solutions is a trusted provider of IT Staffing and consulting services dedicated to empowering businesses with cutting-edge technology solutions and exceptional talent. We specialize in delivering tailored IT consulting services, innovative software solutions, and connecting businesses with highly skilled IT professionals. Founded and led by a dedicated U.S. Army solider, Next Gen Software Solutions is deeply rooted in the core values of integrity, discipline, commitment, and experience-principles that guide every aspect of our operations. Equal Employment Opportunity Statement: Next Gen Software Solutions LLC is an Equal Opportunity Employer. We are committed to fostering an inclusive and diverse workplace where all employees and applicants are treated respect and dignity. We do not discriminate based on race, colour, religion, sex (including pregnancy, sexual orientation, or gender identity), national origin, age, genetic information, veteran status, or any other legally protected characteristic under applicable federal, state, or local laws.