Full Stack Java Developer

Job Title - Full Stack Java Developer
Location - Piscataway, NJ (Hybrid)
Duration - 12+ Months
Summary: The role focuses on building and maintaining enterprise integrations across identity, API authorization, dynamic OAuth clients, dynamic scoping, microservices, and infrastructure-as-code within AWS and Boomi integration platforms.
Scope of Work
The engineer will contribute to enterprise integration projects spanning AWS serverless, API development, Ping-based authorization infrastructure, and IaC automation.
Required Skills & Experience
Identity Provider (IDP) Integration Ping
Hands-on experience with Java 20+ (client uses Java 25)
Hands-on experience integrating PingFederate / PingAccess for SAML 2.0 and OIDC flows
Token validation, scopes, claims mapping, and federated identity configuration.
Custom Lambda Authorizer
Design and implementation of AWS API Gateway custom Lambda authorizers (request and token-based)
JWT/OIDC token validation against Ping, policy generation, and caching strategies
Spring Boot
Production experience building Spring Boot microservices (REST APIs, service layers, externalized configuration)
Familiarity with Spring, SpringBoot, and containerized deployments (Docker/ECS Fargate)
AWS Expertise
Strong working knowledge of core AWS services: Lambda, API Gateway, ECS/Fargate, DynamoDB, S3, CloudWatch, IAM, VPC
Serverless architecture patterns and event-driven design
Networking fundamentals (VPC endpoints, security groups, private subnets)
Boomi Integration Platform knowledge
Terraform
Infrastructure-as-Code using Terraform (modules, state management, workspaces)
Provisioning and managing AWS resources in multi-environment pipelines
Agentic IDE & AI-Assisted Development
Comfort working with AI-powered development tools (Kiro, Claude Code, GitHub Copilot agentic coding assistants)
Ability to leverage AI pair-programming for code generation, review, and iteration within Kiro or similar IDEs
Nice to Have
Experience with Deno / TypeScript Lambda functions
Familiarity with OpenAPI specifications and contract-first API design
CI/CD with AWS CodePipeline / CodeBuild
DynamoDB data modeling and access patterns
microservices migration experience