Java Full Stack Developer (LLM/GenAI)
han it staffingWhippany (NJ)
Java Full Stack Developer (LLM/GenAI)
Posted today
han it staffingWhippany (NJ)
SENIORITY
Senior
About the role
Job Description Job Description Job Title: Java Full Stack Developer (LLM/GenAI)
Location: Whippany, NJ (Onsite)
Duration: Contract
Job Description:
We are seeking an experienced AI Java Full Stack Developer with expertise in Java, Spring Boot, Microservices, LLMs, RAG, and AI application development. The ideal candidate will build scalable enterprise applications by integrating Generative AI capabilities into modern Java-based systems.
Required Skills:
7 years of experience in Java Full Stack Development.
Strong experience with Java 8/11/17, OOP, Spring Boot, Microservices, REST APIs.
Frontend experience with React.js or Angular.
Experience with LLMs, RAG, Prompt Engineering, and AI API integration (OpenAI, Azure OpenAI, Claude, Gemini).
Hands-on experience with LangChain/LangGraph/LlamaIndex and Vector Databases (Pinecone, FAISS, ChromaDB).
Knowledge of AI security, including Prompt Injection, Data Leakage, Hallucinations, and OWASP Top 10 for LLMs.
Experience with Git, Jenkins CI/CD, Docker, Kubernetes/OpenShift, and SQL/NoSQL databases.
Strong problem-solving and communication skills.
Before you apply
Applying takes about a minute. These four things decide how fast it moves after that.
Your profile is current
It's what we read first. Occupations, seniority and locations matter more than a long history.
Two examples you can talk through
Not a portfolio — just two pieces of work where you can explain the decisions and what you'd change.
A number in mind
What you're on now and what would make you move. We negotiate better when we know both.
Your notice period
Employers plan around it, and it's the question that stalls offers most often.
Once you apply, someone reads it and calls you before anything reaches the employer — usually within two working days.