SADHIK SHAIK

Software Developer at System Soft Technologies

Collaborated with cross-functional teams in an Agile/Scrum environment to deliver scalable cloud-native applications. Designed and developed RESTful APIs using Spring Boot and Spring MVC following microservices architecture principles. Integrated frontend ReactJS components with backend APIs, creating seamless user experiences. Implemented authentication and authorization mechanisms using Spring Security, OAuth 2.0, and LDAP. Built and deployed microservices to AWS using Docker containers orchestrated with Kubernetes (EKS). Utilized AWS services like EC2, S3, RDS, Lambda, and CloudWatch for high-availability deployments and serverless compute. Developed asynchronous messaging systems using Apache Kafka and ActiveMQ for event-driven processing. Wrote JUnit and Mockito-based unit tests and used Selenium and Cucumber for end-to-end automation testing. Implemented CI/CD pipelines using Jenkins and GitHub Actions for faster and automated software releases. Used Logstash, Elasticsearch, and

Java Developer at Pioneer Consulting Services

Developed distributed and scalable backend services using Spring Boot in a microservices-based architecture. Implemented RESTful APIs and SOAP web services using JAX-RS and JAX-WS for internal and external integrations. Built and managed infrastructure-as-code using Terraform and AWS CloudFormation templates. Designed responsive UIs using AngularJS, Bootstrap, and integrated them with backend services. Managed AWS resources including EC2, S3, DynamoDB, Lambda, RDS, Route 53, and IAM policies for access control. Integrated Kafka producers/consumers for real-time data streaming and implemented message retries and dead-letter queues. Automated DevOps workflows with Jenkins, Nexus, and GitLab CI/CD to ensure smooth code delivery pipelines. Migrated monolithic applications into containerized services running in Kubernetes with Helm charts. Performed data processing and analytics using Apache Spark and Hadoop on large data sets. Created dashboards using ELK Stack for monitoring logs and appl

Java Developer at Mahaveer Software Solutions

Developed full-stack applications using Java 8, Spring Boot, ReactJS, and Cassandra for scalable cloud-native solutions. Built REST APIs and consumed them on the frontend using React with Redux and Axios. Designed and implemented multithreaded ETL tools in Java for parsing XML and loading data into Oracle via Hibernate/JPA. Applied Spring MVC, Spring Data, and Spring Security for backend logic, persistence, and role-based access. Created AWS Lambda functions to process messages from SQS queues and store into RDS databases. Implemented infrastructure automation using Ansible and CloudFormation for consistent deployment pipelines. Used Redis and MongoDB for caching and storing semi-structured data to improve application performance. Conducted backend load testing and automated UI testing using Selenium WebDriver and Protractor. Built CI/CD workflows with Jenkins and Maven to automate build and deployment processes. Utilized Swagger for REST API documentation and tested APIs with Postman

Software Developer at System Soft Technologies

Collaborated with cross-functional teams in Agile/Scrum environments to develop scalable cloud-native applications. Designed RESTful APIs with Spring Boot adhering to microservices architecture. Integrated ReactJS frontends with backend APIs, and implemented authentication using Spring Security, OAuth 2.0, and LDAP. Deployed microservices on AWS using Docker and Kubernetes (EKS). Utilized AWS services including EC2, S3, Lambda, RDS, and CloudWatch for high availability and serverless compute. Developed asynchronous messaging with Apache Kafka and ActiveMQ. Automated testing using JUnit, Mockito, Selenium, and Cucumber. Established CI/CD pipelines with Jenkins and GitHub Actions, enabled centralized logging using ELK Stack, and improved code quality using SonarQube.

Java Developer at Pioneer Consulting Services

Developed distributed and scalable backend services using Spring Boot and microservices architecture. Implemented RESTful APIs and SOAP web services with JAX-RS and JAX-WS. Managed infrastructure as code using Terraform and AWS CloudFormation. Built responsive UIs using AngularJS and Bootstrap. Administered AWS resources including EC2, S3, DynamoDB, Lambda, RDS, Route 53, and IAM. Integrated Kafka for real-time data streaming with retries and dead-letter queues. Automated CI/CD pipelines using Jenkins, Nexus, and GitLab CI/CD. Migrated monolithic apps to containerized Kubernetes services with Helm. Performed big data analytics with Apache Spark and Hadoop. Created dashboards with ELK Stack, and optimized MySQL and MongoDB data models.

Java Developer at Mahaveer Software Solutions

Developed full-stack cloud-native applications leveraging Java 8, Spring Boot, ReactJS, and Cassandra. Designed REST APIs consumed by React frontends with Redux. Implemented multithreaded ETL Java applications for XML data parsing and Oracle database loading via Hibernate/JPA. Applied Spring MVC, Data, and Security frameworks for backend and role-based access. Created AWS Lambda functions for processing SQS messages. Automated infrastructure deployments with Ansible and CloudFormation. Enhanced performance using Redis and MongoDB caching. Conducted backend load testing and frontend automation with Selenium and Protractor. Built CI/CD pipelines with Jenkins and Maven, and documented APIs with Swagger while testing using Postman.

Java Developer at Pioneer Consulting Services

Developed backend microservices using Java and Spring Boot for enterprise applications. Built REST and SOAP APIs used by React and Angular web applications. Developed frontend screens and components using React, Angular, and TypeScript. Integrated frontend applications with Spring Boot APIs and external services. Developed Python-based services and scripts for internal tools and data processing. Designed and managed AWS infrastructure using Terraform and CloudFormation. Worked with AWS services including EC2, S3, Lambda, DynamoDB, RDS, IAM, and Route 53. Implemented Kafka-based event-driven communication with proper error handling. Automated build and deployment processes using Jenkins, GitLab CI/CD, Docker, and Helm. Migrated legacy monolithic applications to Docker and Kubernetes platforms. Designed and optimized MySQL and MongoDB database schemas and queries. Supported batch and data processing workloads using Spark and Hadoop.