Job description

Job Title: Senior Full Stack Java Developer (AI Lab) Location: Boston, MA (On-site). Philadelphia also considered. Employment Type: Contract (W2 through ZipStaff — No C2C or 1099) About the Opportunity: ZipStaff is seeking a Senior Full Stack Java Developer for an AI Lab team at a financial services organization. You will stay hands-on building Java / Spring applications and modern front ends while influencing architecture, quality, and mentoring. Work is AI- and data-enabled with Product Owners, data scientists, and business stakeholders. What You’ll Do: • Design, develop, and maintain Java applications in a distributed environment. • Build end-to-end features with React or Angular and Java / Spring Boot (Python or Node.js as needed). • Own features from requirements through implementation, deployment, and production support. • Contribute to AI-enabled and data-driven solutions with data and product teams. • Participate in design and architecture discussions; run code reviews. • Mentor less experienced developers and set engineering standards. • Work with CI/CD and deployment automation; support OpenShift and Azure. • Troubleshoot complex production issues. • Apply RAG, embeddings, vector search, and agentic frameworks (LangChain, LangGraph, CrewAI) where the product needs them. Required Qualifications: • 5+ years hands-on Java development. • Strong Spring (MVC, Data, Security) and enterprise backend systems. • Modern front end: Angular and TypeScript (React acceptable). • SQL and NoSQL, data modeling, and performance. • Messaging / asynchronous processing. • Hands-on Azure. • Agile (Scrum / Kanban). • Ability to work on-site in Boston, MA (Philadelphia considered). • Must be legally authorized to work in the United States without sponsorship now or in the future. Preferred Qualifications: • OpenShift / Unix-Linux. • RAG, embedding models, vector databases, semantic search. • LLMs and agentic frameworks (LangChain, LangGraph, CrewAI). • Python or Node.js in addition to Java. • Mentoring and technical leadership on a small team. Benefits: • Health Insurance. • Dental Insurance. • Vision Insurance. • 401(k). • 401(k) matching. • Paid time off. • Referral Program. About ZipStaff: ZipStaff partners with leading organizations to connect skilled technology professionals with high-impact contract opportunities. We focus on quality matches, clear communication, and long-term success for candidates and clients. To apply, submit your resume highlighting Java / Spring and Angular (or React) work you owned, Azure or OpenShift delivery, and any RAG / LangChain exposure. Pay: $52 - $54 per hour

Requirements

Must-haves

Job Title: Senior Full Stack Java Developer (AI Lab)
Location: Boston, MA (On-site). Philadelphia also considered.
Employment Type: Contract (W2 through ZipStaff — No C2C or 1099)
Design, develop, and maintain Java applications in a distributed environment.
Build end-to-end features with React or Angular and Java / Spring Boot (Python or Node.js as needed).
Own features from requirements through implementation, deployment, and production support.
Contribute to AI-enabled and data-driven solutions with data and product teams.
Participate in design and architecture discussions; run code reviews.
Mentor less experienced developers and set engineering standards.
Work with CI/CD and deployment automation; support OpenShift and Azure.
Troubleshoot complex production issues.
Apply RAG, embeddings, vector search, and agentic frameworks (LangChain, LangGraph, CrewAI) where the product needs them.
5+ years hands-on Java development.
Strong Spring (MVC, Data, Security) and enterprise backend systems.
Modern front end: Angular and TypeScript (React acceptable).
SQL and NoSQL, data modeling, and performance.
Messaging / asynchronous processing.
Hands-on Azure.
Agile (Scrum / Kanban).

Nice-to-haves

OpenShift / Unix-Linux.
RAG, embedding models, vector databases, semantic search.
LLMs and agentic frameworks (LangChain, LangGraph, CrewAI).
Python or Node.js in addition to Java.
Mentoring and technical leadership on a small team.

Application prep

Use the role’s language and application details while tailoring your materials.

Keywords to mirror

javaaireactangularpythonnode.jsci/cdazuretypescriptsqlagilescrum

Platform: betterteam
Effort: medium

Benefits

Benefits detected in the listing.

Health Insurance

Dental

Vision

401(K)

Paid Time Off