Job Description

Kforce has a client that is seeking a Java React Developer. The candidate is expected to sit onsite in Brookfield, WI at least 3 days a week. Summary: This position will be responsible for the analysis, design, testing, development, and maintenance of best-in-class software experiences. The candidate is a self-motivated individual who can collaborate with a team and across the organization while leveraging AI-assisted development tools to accelerate delivery. The candidate takes responsibility for the software artifacts produced, adhering to Company standards for security, observability, and performance. Essential Responsibilities:

• Design, develop, test, and maintain full-stack applications, including React-based UI, Java/Spring Boot APIs, Python microservices, and backend services
• Build and enhance scalable, secure microservices aligned with enterprise architecture and performance standards, leveraging Spring Boot, FastAPI, and modern architectural patterns
• Develop and integrate AI-powered agent workflows using LangGraph and LangChain for intelligent claim processing and decision automation
• Collaborate in Agile teams to deliver high-quality code, participate in design reviews, and continuously improve engineering practices
• Implement and support CI/CD pipelines, DevOps practices, and automation using Docker, ensuring reliable and efficient deployments
• Lead modernization initiatives, migrating legacy systems to cloud-native, microservices-based architectures
• Use AI-assisted development tools (GitHub Copilot, Claude, etc.) to accelerate coding, debugging, and knowledge sharing across the team

• Strong hands-on experience with React.js 19+, TypeScript, and modern JavaScript frameworks
• Experience developing Python applications using FastAPI and async patterns
• Experience with containerization and orchestration (Docker, Kubernetes)
• Hands-on experience with PostgreSQL, including DDL/DML, performance tuning
• Proven expertise in Java 21, Spring Boot framework, and building RESTful APIs and microservices
• Expertise in identity & security frameworks (IAM, SSO, OAuth2, JWT, Active Directory, TLS/mTLS)
• Familiarity with AI/ML concepts and integration of LLM-based workflows into applications
• Familiarity with enterprise security architectures and cross-platform security implementation
• Familiarity with state machine patterns and workflow orchestration for complex business processes
• Proficiency with DevOps / CI-CD tools (Jenkins, GitLab, Kubernetes, Rancher)

• Frontend: React 19, TypeScript, React Router, Tailwind CSS, Leaflet mapping
• Backend API: Java 21, Spring Boot 3.3.4, Spring Data JPA, Spring State Machine, Spring Security
• AI Agents: Python 3.11+, FastAPI, LangGraph, LangChain Core, Pydantic
• Database: PostgreSQL
• Infrastructure: Docker, OpenAPI/Swagger UI

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