4Bell Technology

Staffing & Recruiting

Lead Java Developer(R-2128)

100,000.00-1,100,000.00/A

B.Tech/B.E

IT (Information Technology)

Contract

Noida

08-Nov-2026

Java Spring Boot GraphQL SNS Kinesis AWS Devops CI/CD Microservices

Job Description

  • Design, develop, and maintain enterprise-grade applications using Java (8/11/17+) and Spring Boot. 
  • Build and optimize APIs (REST,gRPC and GraphQL) for high performance and scalability. 
  • Experience in Reactive programming. 
  • Ensure system reliability, scalability, and security in production environments. 
  • Collaborate with product managers, DevOps, and QA teams to deliver high-quality solutions. 
  • Participate in code reviews, technical design discussions, and architecture planning. 
  • Mentor and guide junior engineers, sharing best practices in coding, testing, and cloud development. 
  • Troubleshoot production issues, perform root cause analysis, and implement long-term fixes. 

 WHAT YOU’LL NEED

  • 8-12 years of professional software engineering experience. 
  • Strong expertise in Java and Spring Boot. 
  • Hands-on experience with event-driven architectures using SQS, SNS, and Kinesis. 
  • Proficiency in GraphQL API development. 
  • Strong background in AWS services (Lambda, ECS, EKS, Auto Scaling, API Gateway, etc.). 
  • Solid understanding of containerization and orchestration (Docker, Kubernetes). 
  • Experience with CI/CD pipelines and automation frameworks. 
  • Knowledge of microservices architecture and distributed system design. 
  • Excellent debugging, problem-solving, and performance optimization skills. 
  • Experience with Solr/OpenSearch/Elasticsearch