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Nine Core Technologies · Noida, Uttar Pradesh

Java Developer

full timePosted today
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Stack mentioned

javaspringawsmicroservicesgrpcgraphqlecseksdockerkubernetesci/cddevopselasticsearchapi-designsystem-design

Role - Java Developer

Job Description

We are looking for an experienced Java Backend Engineer with strong expertise in Java, Spring Boot, AWS, microservices, API development, reactive programming, and distributed systems.

The candidate will be responsible for designing, developing, and maintaining enterprise-grade applications with a focus on scalability, reliability, security, and performance.

Key Responsibilities

Design, develop, and maintain enterprise-grade applications using Java 8/11/17+ and Spring Boot.

Design, develop, and optimize high-performance REST, gRPC, and GraphQL APIs.

Implement solutions using Reactive Programming.

Design and develop scalable Microservices Architecture and distributed systems.

Build and maintain event-driven architectures using SQS, SNS, and Kinesis.

Develop and deploy applications using AWS services, including Lambda, ECS, EKS, Auto Scaling, and API Gateway.

Ensure system reliability, scalability, security, and performance in production environments.

Work with Docker and Kubernetes for containerization and orchestration.

Develop and maintain CI/CD pipelines and automation frameworks.

Collaborate with Product Managers, DevOps, and QA teams to deliver high-quality solutions.

Participate in code reviews, technical design discussions, and architecture planning.

Troubleshoot production issues, perform Root Cause Analysis (RCA), and implement long-term solutions.

Mentor junior engineers and promote best practices in coding, testing, and cloud development.

Work with search technologies including Solr, OpenSearch, and Elasticsearch.

Required Skills

Strong hands-on expertise in Java and Spring Boot.

Experience with Java 8/11/17+.

Strong experience in REST, gRPC, and GraphQL API development.

Hands-on experience with Reactive Programming.

Experience with event-driven architectures using SQS, SNS, and Kinesis.

Strong knowledge of AWS services, including Lambda, ECS, EKS, Auto Scaling, and API Gateway.

Good understanding of Docker and Kubernetes.

Experience with CI/CD pipelines and automation frameworks.

Strong understanding of Microservices Architecture and Distributed System Design.

Experience with Solr / OpenSearch / Elasticsearch.

Strong debugging, problem-solving, troubleshooting, and performance optimization skills.

Work Location: In person

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