Java Full Stack Developer

Java Full Stack Developer NYC, NY (Hybrid) Sincera in house project 12+ years of experience in full stack development with strong proficiency across both frontend and backend technologies Strong proficiency in React with deep understanding of core concepts including component lifecycle, hooks, context API, state management, and modern frontend tooling Should have work experience in Nodejs, React, Type script skill set Solid experience with TypeScript including type systems, generics, interfaces, and advanced patterns Strong proficiency in Java with hands-on experience building production applications using NodeJs Good understanding in Spring boot framework In-depth experience with API design and integration — building RESTful APIs, integrating with multiple external systems, handling authentication protocols (OAuth, API keys, JWT), and managing data transformation across systems Experience building and maintaining microservices architectures with well-defined service contracts, inter-service communication, and API documentation Strong experience with SQL Server including complex queries, stored procedures, and performance optimization Hands-on experience leveraging AI agents (e.g., Claude Code, Cursor) in day-to-day development for coding, testing, and documentation Understanding of software design patterns, SOLID principles, and clean architecture practices Experience with version control systems (Git) and CI/CD practices