Dheeraj is available for hire

Dheeraj Vangala

Verified Expert in Engineering

Software Developer

Boca Raton, FL, United States

Toptal member since May 18, 2023

Expertise

Java Spring Spring Boot Postman Agile Development Jenkins Microservices Development AWS MacOS Windows Development Hibernate HTML5 SQL MySQL

Bio

Dheeraj is a highly skilled software developer with 8+ years of IT experience. He excels in implementing and maintaining web-based distributed enterprise applications, particularly in Java and Jakarta EE technologies. His expertise extends to object-oriented development, spanning multiple frameworks such as Spring, Hibernate, JDBC, and XML. Dheeraj also has a working knowledge of web services, including REST, SOAP, and WSDL.

Portfolio

Cancer Treatment Centers of America

Java 9, Spring, Spring MVC, Spring Boot, REST, APIs, Gradle...

Citi

Hibernate, Java 9, Spring, Spring MVC, Spring Boot, Hibernate OGM, REST, APIs...

Caterpillar

Hibernate, Java 8, REST, Apache Kafka, Apache Maven, Spring, Spring MVC...

Experience

Spring MVC - 5 years
Hibernate OGM - 5 years
Spring Boot - 5 years
Java - 5 years
Hibernate - 5 years
RESTful Microservices - 5 years
Spring - 5 years
Microservices - 4 years

Availability

Full-time

Preferred Environment

Windows, MacOS

The most amazing...

...skill I have used as a developer is my ability to rapidly learn new concepts and methodologies.

Work Experience

Senior Software Engineer

2022 - PRESENT

Cancer Treatment Centers of America

Developed microservices using the Spring framework and converted user stories into back-end logic within service classes.
Used Apache Maven and Gradle 4.10 for build and deployment, Jenkins for continuous integration, and Apache Log4j for logging.
Tested REST APIs in the Spring Controller implemented at the back end for JSON data using Postman.

Technologies: Java 9, Spring, Spring MVC, Spring Boot, REST, APIs, Gradle, RESTful Microservices, Spring Microservice, Microservices Architecture, Hibernate, Eclipse, Apache Tomcat, Agile, API Integration, Relational Databases

Senior Software Engineer

2020 - 2021

Citi

Implemented a Java module named Inventory Specified Control by interacting with clients, understanding their software requirements specifications (SRS), and utilizing Java, Core Java, and the Spring framework as part of the development process.
Used Git for version control, IntelliJ IDEA for development, and Apache Tomcat for application deployment.
Performed integration tests on APIs using Postman.

Technologies: Hibernate, Java 9, Spring, Spring MVC, Spring Boot, Hibernate OGM, REST, APIs, Postman, API Integration, Relational Databases

Software Developer

2019 - 2019

Caterpillar

Developed an application called Consumers using Spring Boot, JSTL, and Ajax in the presentation layer, Spring in the business layer, and Hibernate in the persistent layer.
Created back-end RESTful services with Spring Boot and used Apache Maven and Gradle 4.10 for build and deployment, Jenkins for continuous integration, and Apache Log4j for logging.
Worked with an Oracle database and used Hibernate as an ORM tool. Built POJOs or data models for the application and, additionally, contributed to the creation and deployment of Docker images.

Technologies: Hibernate, Java 8, REST, Apache Kafka, Apache Maven, Spring, Spring MVC, Spring Boot, Postman, Gradle, API Integration, Relational Databases

Software Developer

2018 - 2019

Mastercard UK

Worked on an internal application that connects and communicates with other third-party systems.
Developed microservices using the Spring framework and converted user stories into back-end logic within service classes.
Handled objects in the mid-tier service and acquired hands-on experience implementing lazy loading and caching mechanisms at the first and second levels.
Used Apache Maven and Gradle 4.10 for build and deployment, Jenkins for continuous integration, and Apache Log4j for logging.
Monitored and tracked issues and bugs with Rally. Additionally, used Git for version control, IntelliJ IDEA for development, and Apache Tomcat for application deployment.

Technologies: Microservices, REST, Java 9, Relational Databases

Software Developer

2018 - 2018

Fidelity Investments

Developed internal applications for the financial institution cryptocurrency.
Used Jira to handle development issues, Git for version control, Eclipse IDE for development, and Apache Tomcat for application deployment.
Created RESTFul web services using the Spring MVC framework on the server side, which provides JSON outputs to the user interface (UI), modifying the DOM object on the UI alongside HTTP calls, such as GET and PUT requests.

Technologies: Spring MVC, Spring Boot, Hibernate, Spring, Relational Databases

Java Developer

2014 - 2015

Capgemini India

Developed an app in the insurance domain following user requirements.
Used core Java String library to read and process data and JDBC to connect to the database.
Evaluated and solved trouble tickets in coordination with DBAs, help desk, and testing.

Technologies: Java, Apache Struts, Spring, Hibernate, Unit Testing

Experience

Foreign Exchange App

CITI is a financial services corporation where I gained experience working in the foreign exchange (FX) department. During my tenure, I played a key role in integrating a project focused on developing applications for end users. In this capacity, I successfully coordinated multiple teams based in India and the USA, leading the development effort to deliver a crucial Java module.

Education

2015 - 2017

Master's Degree in Computer Science

Southern Arkansas University - Magnolia, Arkansas, USA

Skills

Libraries/APIs

REST APIs

Tools

Postman, Jenkins, IntelliJ IDEA, Apache Maven, Gradle, Hibernate OGM, Apache Tomcat, PuTTY

Languages

Java 8, Java, Java 9, HTML5, SQL, HTML, CSS

Frameworks

Spring, Spring Boot, Hibernate, Spring MVC, Spring Microservice, JavaScript MVC, Apache Struts

Paradigms

Microservices, REST, Agile, Service-oriented Architecture (SOA), Unit Testing, Microservices Architecture, Event-driven Architecture

Platforms

Amazon Web Services (AWS), MacOS, Apache Kafka, Windows, Eclipse, Oracle

Storage

MySQL, Elasticsearch, Relational Databases, Amazon S3 (AWS S3), JSON

Other

RESTful Microservices, Spring DAO, APIs, API Integration

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