Full Stack Java Developer

SANS Consulting Services, Inc.; Piscataway Township (NJ); On-site; USD 90,000 - 120,000; Full time

Job summary

SANS Consulting Services, Inc. is looking for an experienced engineer to focus on building and maintaining enterprise integrations, leveraging AWS and Boomi integration platforms. The ideal candidate will have strong knowledge in identity integration, API development, and microservices, particularly using Java and Spring Boot.

Responsibilities include contributing to projects involving AWS serverless architecture, along with designing and implementing Lambda authorizers. Familiarity with AI-assisted development tools is a plus.

Qualifications

• Hands-on experience with Java 20+.
• Strong working knowledge of core AWS services.
• Production experience building Spring Boot microservices.

Responsibilities

• Build and maintain enterprise integrations across identity and API authorization.
• Contribute to enterprise integration projects using AWS serverless and API development.
• Design and implement custom Lambda authorizers for AWS API Gateway.

Job description

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.
• 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

• 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