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IPolarity LLC

Lead Java Full Stack Developer at New York

IPolarity LLC Hanover Township, New Jersey, United States · $104K/yr

Staffing and Recruiting · 51-200 employees

3 d ago
java Principal (10+ yrs) Full-time United States
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About the role

Design, build, and scale enterprise-grade, API-first platforms using modern Java technologies and AWS cloud services. Lead technical initiatives, mentor developers, and collaborate with cross-functional teams to deliver scalable AI-driven solutions.

What they look for

Java Spring Boot Microservices ReactJS TypeScript Node.js AWS Kafka Docker Kubernetes Terraform CI/CD SQL NoSQL Agentic AI LLMs

Requirements

Requires over 12 years of professional software engineering experience with deep expertise in Java, Spring Boot, and cloud-native architecture. Candidates must possess strong leadership skills and hands-on experience with frontend technologies, microservices, and AI orchestration frameworks.

Full description

HIRING: Lead Java Full Stack Developer Location: New York (Onsite)

We are looking for an experienced, hands-on Lead Java Full Stack Developer to design, build, and scale enterprise-grade, API-first platforms using modern Java technologies, AWS cloud services, and AI-driven solutions.

Key Responsibilities & Technical Requirements: ✅ 12+ years of professional software engineering experience. ✅ Strong expertise in Java 11/17/21, Spring Boot, REST APIs, JSON, and OpenAPI. ✅ Extensive experience designing and developing Microservices and API integrations. ✅ Strong frontend development experience with ReactJS, TypeScript, JavaScript, Node.js, and WebSockets. ✅ Hands-on experience with event-driven architecture and messaging platforms such as Kafka, AWS SNS, and SQS. ✅ Strong AWS cloud-native architecture and development experience. ✅ Experience with Agentic AI, LLMs/SLMs, MCP, RAG, and AI orchestration frameworks. ✅ Experience with Docker, Kubernetes, ECS/EKS, and serverless computing. ✅ Strong understanding of CI/CD pipelines, Jenkins, Spinnaker, Terraform, and automated deployments. ✅ Experience with SQL and NoSQL databases, including PostgreSQL, MySQL, Aurora, DynamoDB, and DocumentDB.

Additional Skills: API versioning, schema evolution, contract testing (Pact/WireMock). Production monitoring and observability using Splunk, Dynatrace, Grafana, and CloudWatch. Performance tuning, JVM optimization, and application scalability. Security practices including IAM, KMS, WAF, OAuth, and secrets management. AI-assisted coding tools such as GitHub Copilot and Claude. Python experience for AI/LLM engineering is a plus.

What We Are Looking For: Strong technical leadership and architectural skills. Ability to independently design and deliver scalable enterprise solutions. Excellent communication and stakeholder management skills. Experience mentoring developers and collaborating with cross-functional teams. Ability to translate business requirements into secure, scalable technical solutions.

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