Lead Java Full Stack Developer at New York

IPolarity LLC
  • Whippany, NJ
  • Full-time
3 days ago

Job 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.

Numbers & Facts

LocationWhippany, NJ
Job TypeFull-time

Skills

  • Amazon Web Services (AWS)unmatched
  • Application Programming Interface (API)unmatched
  • Architectural Servicesunmatched
  • Artificial Intelligence (AI)unmatched
  • Business Skillsunmatched
  • Cloud Computingunmatched
  • Communication Skillsunmatched
  • Continuous Deployment/Deliveryunmatched
  • Continuous Integrationunmatched
  • Cross-Functionalunmatched
  • GitHubunmatched
  • Javaunmatched
  • JavaScriptunmatched
  • Jenkinsunmatched
  • Mentoringunmatched
  • Microservicesunmatched
  • Node.jsunmatched
  • OAuthunmatched
  • Performance Tuning/Optimizationunmatched
  • Production Controlunmatched
  • Python Programming/Scripting Languageunmatched
  • React.jsunmatched
  • Requirements Managementunmatched
  • Software Engineeringunmatched
  • Splunkunmatched
  • Technical Leadershipunmatched
  • User Interface/Experience (UI/UX)unmatched

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