Java Full Stack Developer (LLM/GenAI)
Han IT Staffing
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.
- 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.
Vacancy posted 2 days ago
Similar jobs that could be interesting for youBased on the Java Full Stack Developer (LLM/GenAI) in Whippany, NJ vacancy
- Job ID: 29249925Reference Number: 26-00939Title: Lead Full Stack Developer (React, TypeScript, Go, Java, Python, Node.js, AWS)Posted Date: 2026-09-11Contact: Vishika ChaudharyContact Email: ****@*****.*** Phone: (***) ***-****Company: HAN Staffing...Java
HAN Staffing
Madison, NJ2 days ago - Job ID: 29302261Reference Number: 26-00949Title: LEAD FULL STACK DEVELOPERPosted Date: 2026-09-15Contact: Vishika ChaudharyContact... ...: (***) ***-****Company: HAN Staffing Role: Full Stack Developer (React, GoLang, Python, Java, Node.js, AWS)Employment Type: PermanentLocation: US (...Java
HAN Staffing
Madison, NJ3 days ago - ...Position: Application Consultant Location: Whippany, NJ 07981 Duration: Long Term Job description: - Backend: Java 8+, Spring Framework, Spring Boot, Hibernate/JPA - Frontend: JavaScript/TypeScript, React/Angular/Vue.js, HTML5, CSS3 - Database...Java
ECHO IT SOLUTIONS INC .
Whippany, NJ4 days ago $98.75k - $115k
Position: Full-Stack Developer Location: Parsippany, NJJob Id: 2054-290-27-B-R # of Openings:... ...migrationsDemonstrated knowledge of high-level programing languages such as Java, Python, C#, Angular and/or ReactExperience with Web frontend...JavaFull timeWork at officeLocal areaFlexible hoursMarotta
Parsippany, NJ2 days ago$50 per hour
...Job Title: Senior Java Full Stack Developer Work Location & Reporting Address Whippany, NJ 07981 - Onsite Hybrid Vendor Rate $50/hr Contract duration 6 Months Interview Process (Is face to face required?): Yes Must Have Skills Java Springboot...JavaContract workDiverse Lynx
Whippany, NJ2 days ago$155.6k - $306.8k
...solutions (including AI/GenAI-enabled capabilities... ...Hands-on experience in full stack development across frontend... ...(Django/Flask), or Java (Spring Boot).Experience... ...building and deploying GenAI/LLM-powered solutions in... ...Recruiting tips From developing a stand out resume to...JavaLocal areaVisa sponsorshipDeloitte
Morristown, NJ4 days ago$134.5k - $265.1k
...solutions, including AI/GenAI-enabled capabilities... ...hands-on experience in full stack development across frontend... ...(Django/Flask), or Java (Spring Boot).Experience... ...building and deploying GenAI/LLM-powered solutions in... ...Recruiting tips From developing a stand out resume to...JavaLocal areaVisa sponsorshipDeloitte
Morristown, NJ3 days ago- ...Position Overview We are seeking an experienced Fullstack Developer to design, development, and implementation of enterprise-grade... ...Lead the development and implementation of Java-based applications and microservices. Contribute to high-level...Java
Hallmark Global Solutions Ltd
Berkeley Heights, NJ4 days ago $60 - $65 per hour
...Full Stack Developer/Engineer Position Details Location: Newark, NJ (Hybrid) Type: Contract to Hire Client: Leading financial firm... ...NestJS) and RESTful API design Experience with Spring Boot and Java Proficiency in JavaScript/TypeScript across the full stack...JavaHourly payContract workJSR Tech Consulting
Newark, NJ4 hours ago- ...Technical Requirements Experience: 5–8 years of professional software engineering. Core Stack (One of the following): Java: Spring Boot, REST APIs, Microservices. .NET: C#, .NET 6/8, Web API. MEAN/MERN: Node.js, Express, React/Angular. LAMP: Modern PHP...JavaFull time
Applied Thought Auditors and Consultants, Inc.
Berkeley Heights, NJ1 day ago - ...to-end architecture for full stack applications across... ...implementation of AI, GenAI, and Agentic AI solutions... ...mid-level, and senior developers, fostering a strong engineering... ...(Django/Flask), or Java (Spring Boot).... ...building and deploying GenAI/LLM-powered solutions in client...JavaLocal area
Deloitte
Morristown, NJ2 days ago - ...Role: Full Stack Developer Location: Berkeley Heights, NJ Contract to hire What You Will Do: Analyze complex processes and... ...Experience You Will Need: Required Backend development using Java Well versed in front end development React...JavaContract work
Veracity
Berkeley Heights, NJ3 days ago - ...UHC Member Material Application Developer Help evolve UHC's member material application... ...large-size projects Act as a DevOps Full Stack engineer Build, deploy, and test API... ...web applications (backend and frontend), Java, Java Spring Boot microservice development...JavaWork experience placement
Software Technology Inc
Basking Ridge, NJ3 days ago - Position title: senior full stack java developer and full stack developer Location: charlotte, NC Onsite: 3 days a week Contract: 6-24 months to perm Must have: java, spring boot, microservices, SQL, and angularJavaPermanent employmentContract work3 days per week
RIT Solutions, Inc.
Summit, NJ13 hours ago - ...Full Stack Developer Strivector Corp is a National Recruiting and Staffing agency established in 2012 and headquartered in Austin, Texas. We... ...As a Full stack developer you'll need to be an expert in Java and enterprise Java. You'll also need experience working with...JavaFull timeContract workFor contractorsRemote workRelocationVisa sponsorship
Strivector
Roseland, NJ12 hours ago $99k - $232k
...SummaryThe OpportunityAs an AI & GenAI Data Scientist - Manager, you... ...and techniques to design and develop robust data solutions for... ...languages such as Python and Java to enhance AI model deployment... ...Philadelphia; AZ-Phoenix; PA-Pittsburgh; OR-PortlandType: Full timeJavaFull timeH1bPwC
Florham Park, NJ1 day ago- ...Position: Java Full Stack Developer with Banking Domain Exp Location: Berkeley Heights, NJ or Alpharetta, GA or Coral Springs, FL (Local Only & Onsite) Duration: Contract Job Description: Domain : Commercial Banking products and services Commercial Lending Payments...JavaFull timeContract workLocal area
Envision Technology Solutions
Berkeley Heights, NJ4 hours ago - Job DescriptionADP is hiring a Full Stack Software DeveloperLocation: Roseland NJ (Hybrid 3... ...are seeking a motivated Senior Full Stack Developer with 5+ years of experience to join our... ...REST APIs and backend services using Java, Spring Boot, and Node.js. You will build...Java1 day per week
ADP - Automatic Data Processing
Roseland, NJ5 days ago - ...AI/ML Sr Architect delivering full-stack AI architecture on public, private... ...agent frameworks leveraging GenAI, foundation models, knowledge... ...MLOps pipelines for ML and LLM lifecycle.Troubleshoot, optimize... ...years of experience in Python, Java, or equivalent. Comfortable...JavaWork experience placementLive inWork at officeLocal area
Accenture
Morristown, NJ1 day ago $122k - $240.5k
...experience in leveraging various GenAI tools to accelerate software development... ...foundation in development (Java or .NET) with early experience as a full stack developer.4+ years’ experience as a... ...production-grade AI solutions such as LLM applications, RAG systems, agentic...JavaLocal areaRemote workFlexible hoursDeloitte
Morristown, NJ2 days ago$128k - $216k
...difference at Fiserv.Job TitleSenior Full Stack Software EngineerAbout your... ...critical role in designing, developing, and maintaining high-quality... ...3+ years of experience in Java, C, C#, C++, or similar... ...methodologies1+ years of experience with LLM/engine and the ability...JavaFull timeContract workTemporary workFor contractorsH1bLocal areaFiserv
Berkeley Heights, NJ1 day ago$146k - $244.8k
...make a difference at Fiserv.Job TitleLead Full Stack Software EngineerAbout your role:At... ...software solutions using languages such as Java, C#, or Python4+ years of experience in technology... ...Azure, or GCP1+ years of experience with LLM/engine and the ability demonstrate steps...JavaFull timeContract workTemporary workFor contractorsH1bLocal areaFiserv
Berkeley Heights, NJ1 day ago- Job Description Job Description Role: Full Stack Developer Location: Whippany, NJ and Charlotte, NC (Hybrid) Duration: Contract Key Skills: Java Spring Boot REST APIs Oracle DB React OpenShift/Kubernetes Git Jenkins CI/CDJavaContract work
- ...automation across the Tech stack – Web/middleware/database.... ...across Test life cycle – Design/Develop/Test. • Perform continuous... ...yrs. programming skills in Java, experience in developing... ...Mule gateway • Exposure to GenAI – Copilot or other LLM’s • Hands on experience on...Java
iPolarity
Whippany, NJ4 days ago $91.7k - $163.7k
...understand customer needs and to develop product roadmaps.These roles... ...backend services and APIs using Java and PythonArchitect and implement... ...AI-enabled solutions (LLM integration, ML inference deployment... ...to $163,700 annually based on full-time employment. We comply with...JavaMinimum wageFull timeWork experience placementLocal areaRemote workUnitedHealth Group
Basking Ridge, NJ1 day ago- ...About Position: We are looking for an experienced Full Stack Developer with strong expertise in modern frontend technologies, backend API development, and end-to-end application architecture. The ideal candidate will possess deep hands-on experience in Python and TypeScript...Full timeWork at officeFlexible hours
Persistent Systems
Whippany, NJ3 days ago - ...requirements capture, design, development and acceptance testing.• Must have 7+ years of experience• Must Have Skills Technical Skills - .Java, Angular JS, SQL Server, Responsive Web design• Should have worked on Webserver/Application server • Experience with Mobile...Java
EROS Technologies
Parsippany, NJ1 day ago - ...Engineer to join our team in designing, developing, and deploying custom applications for our... ...work experience)Minimum of 3 years of full-stack engineering w/ minimum of 1 year experience... ...(AI), Large Language Model (LLM), or High-Performance Computing (HPC) Experience...Work experience placementLive inWork at officeLocal area
Accenture
Morristown, NJ1 day ago - Job ID: 29247504Reference Number: 26-00936Title: java Backend DeveloperPosted Date: 2026-09-11Contact: Vishika ChaudharyContact Email... ...Location: Whippany NJ onsite f2f mandatoryJava Backend Developer Swapnil Group-Brokerage Firm - Hands on with Spring Boot 3, Spring...Java
HAN Staffing
Whippany, NJ2 days ago - ...I have an opportunity for "Full Stack Developer" and looking for a candidate who can join Immediately if you are interested reply me with your updated resume or consultant's contact details and if you could refer someone i really appreciate it. Job Title : Full Stack...Contract workLocal areaImmediate start
Navtech
Livingston, NJ5 days ago
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Java Full Stack Developer (LLM/GenAI). Be the first to apply!
