Java Full Stack Developer

Sonata Software; Hyderabad, Chennai District, Bengaluru; Hybrid; INR 3,500,000 - 6,000,000; Full time

Job summary

Sonata Software is seeking a hands-on Full Stack Java/J2EE Developer with proven experience in serverless AWS workloads. You will design RESTful APIs, build microservices, and deploy scalable, secure event-driven architectures using Lambda, API Gateway, DynamoDB, and more.

The role requires strong background in Java 11+/17, Spring Boot, and AWS services, along with IaC and CI/CD expertise. You will collaborate with Product, QA, Security, and Ops to deliver reliable software in an Agile

Qualifications

• 8+ years professional experience in software engineering with Java/J2EE.
• 3+ years building production systems on AWS including Lambda, API Gateway, DynamoDB, S3, CloudWatch, IAM.
• Practical experience with IaC (CDK/CloudFormation/SAM) and CI/CD pipelines.
• Strong understanding of microservices, event-driven architectures, and serverless patterns.
• Security, testing, and observability in cloud-native environments.
• Excellent problem solving, communication, and collaboration in agile teams.

Responsibilities

• Design & Build scalable microservices and serverless APIs using Java 11+/17, Spring Boot, API Gateway, and AWS Lambda; implement data models on DynamoDB and/or RDS (Aurora/MySQL/PostgreSQL) using JPA/Hibernate where applicable.
• Implement asynchronous workflows with SQS/SNS, EventBridge, and Step Functions; apply idempotency, DLQs, and retry strategies.
• Optimize cold starts, concurrency, and costs; design for high availability, observability, and least-privilege IAM.
• Provision environments using AWS CDK/CloudFormation/SAM; implement CI/CD (GitHub Actions, Jenkins, CodePipeline); integrate security scanning and secrets management.
• Use DynamoDB patterns (GSIs, TTL), S3, ElastiCache/Redis, OpenSearch (optional) for search/analytics.
• Implement OAuth2/OIDC, JWT, and Cognito or enterprise IdP integration; ensure encryption in transit/rest, handle PII, comply with OWASP standards.
• Write unit/integration/contract/UI tests; maintain high coverage and code quality (SonarQube).
• Instrument with CloudWatch Logs/Metrics, X-Ray traces; build dashboards/alerts; collaborate with Product/QA/Security/Ops.

Skills

Java/J2EE

Spring Boot

REST APIs

Maven/Gradle

JPA/Hibernate

AWS

CI/CD

Security

Tools

AWS CDK

CloudFormation

SAM

GitHub Actions

Jenkins

CodePipeline

Job description

Role & responsibilities

Full Stack Java/J2EE Developer (AWS Serverless)

Role Summary

Were looking for a hands‑on Full Stack Java/J2EE Developer with proven experience building serverless applications on AWS. You’ll own end‑to‑end delivery—designing RESTful APIs, implementing microservices using Spring Boot, and deploying scalable, secure event‑driven workloads with AWS Lambda, API Gateway, DynamoDB, SQS/SNS, Step Functions, and EventBridge. Should be comfortable with IaC (CDK/CloudFormation/SAM), automated testing, CI/CD, and production observability.

Key Responsibilities

• Design & Build: Develop scalable microservices and serverless APIs using Java 11+/17, Spring Boot, API Gateway, and AWS Lambda; implement data models on DynamoDB and/or RDS (Aurora/MySQL/PostgreSQL) using JPA/Hibernate where applicable.
• Event-Driven & Orchestration: Implement asynchronous workflows with SQS/SNS, EventBridge, and Step Functions; apply idempotency, DLQs, and retry strategies.
• Serverless Best Practices: Optimize cold starts, concurrency, and costs; design for high availability, observability, and least‑privilege IAM.
• DevSecOps & IaC: Provision environments using AWS CDK / CloudFormation / SAM; implement CI/CD (e.g., GitHub Actions, Jenkins, CodePipeline); integrate security scanning (SCA/SAST/DAST) and secrets management (AWS Secrets Manager/Parameter Store).
• Data & Caching: Use DynamoDB patterns (GSIs, TTL, partitions), S3 for object storage, ElastiCache/Redis for caching, and OpenSearch (optional) for search and analytics.
• Security & Compliance: Implement OAuth2/OIDC, JWT, and AWS Cognito or enterprise IdP integration; ensure encryption in transit/at rest, handle PII, and align with OWASP and org security standards.
• Testing & Quality: Write unit/integration tests (JUnit, Mockito, Testcontainers), contract tests (e.g., Pact), and UI tests (e.g., Cypress/Playwright); maintain high coverage and code quality (SonarQube).
• Observability: Instrument with CloudWatch Logs & Metrics, structured logging, X‑Ray traces, and dashboards/alerts (CloudWatch/Datadog/New Relic).
• Collaboration: Work closely with Product, QA, Security, and Ops; participate in code reviews, design sessions, and agile ceremonies; mentor peers and contribute to engineering standards.

Required Qualifications

• 8+ years professional experience in software engineering with Java/J2EE; strong in Spring Boot, REST, Maven/Gradle, and JPA/Hibernate.
• 3+ years building production systems on AWS, including Lambda, API Gateway, DynamoDB, S3, CloudWatch, IAM, and at least one of SQS/SNS/Step Functions/EventBridge.
• Practical experience with IaC (AWS CDK, CloudFormation, or SAM) and CI/CD pipelines.
• Strong understanding of microservices, event‑driven architectures, distributed systems, and serverless patterns (e.g., saga/orchestration vs. choreography).
• Solid grounding in security (OAuth2/OIDC, JWT, secrets, IAM), testing, and observability in cloud‑native environments.
• Excellent problem solving, communication, and collaboration skills in agile teams.

Tech Stack (Representative)

• Backend: Java 11+/17, Spring Boot, Spring Cloud, JPA/Hibernate, REST
• AWS Serverless: Lambda, API Gateway, DynamoDB, SQS/SNS, Step Functions, EventBridge, S3, CloudWatch, X‑Ray, IAM, Cognito, Secrets Manager
• Data & Caching: DynamoDB, Aurora/RDS, Redis/ElastiCache, OpenSearch (optional)
• DevSecOps & IaC: Git, GitHub/GitLab/Bitbucket, GitHub Actions/Jenkins/CodeBuild, AWS CDK/CloudFormation/SAM, SonarQube, Dependabot/Snyk
• Testing: JUnit, Mockito, Testcontainers, WireMock, Pact, Cypress/Playwright

Nice to Have

• ReactJs