ROHIT YADAV - Java Developer - Vollmond Innovations Pvt.Ltd

Summary

With more than 2 years of experience, I have successfully delivered web and mobile applications in healthcare and social media domains, leveraging my expertise in Java, HL7 standards, AWS services, CI/CD practices, and strong problem-solving skills. In healthcare, I adhere to the HL7 standard for data storage and exchange, creating APIs for clinical software like appointment booking and secure record storage. I am proficient in AWS services such as EC2, S3, CloudFront, Route 53, and IAM, enabling me to build scalable and secure applications. With expertise in CI/CD practices using Jenkins, I ensure efficient software delivery. Collaborating closely with CXOs, I have developed strong problem-solving and leadership skills, prioritizing user needs for exceptional experiences. In the social media domain, I have written APIs for feed generation, post functionalities, and likes, enhancing user engagement and platform success and well versed with java-8.

Overview

2

years of professional experience

Work History

Software Developer

Vollmond Innovations Pvt.Ltd

Hyderabad

04.2022 - Current

(1 year 9 month): Docsteth allows you to build your practitioner profile, share your accomplishments, connect with fellow doctors and organizations, and also build your network
Docsteth also provides you an opportunity to organize online events, CME programs, and courses, write articles, publish job postings, photos, videos, and more
With E-Practice Docsteth is also trying to make evidence- based practice resources and clinical tools accessible to all for free
Where using Docsteth is free and the platform is built and backed by doctors they ensure privacy protection to them
Developed backend using microservices Java, Spring Boot, PostgreSQL, and Python, Django
PostgreSQL and implemented REST services
Experience with microservices architecture patterns
Experienced in Docker Containers including creation, customization, interaction, and debugging
It also provides an opportunity to organize online events, CME programs, courses,write articles, publish job postings, photos, videos, Files and more
With E-Practice module, it consists of information on diseases, drugs and provides clinical calculators accessible to all for free
Built Rest APIS for User's signup and sign in
Developed REST APIS for suggested people and organizations
Developed APIS to Send requests to fellow doctors and accept as well
Built APIS to fetch mutual data
APIS to manage practitioners profile
Developed APIS to upload Images, Videos, Files to AWS S3 buckets
Created CICD Pipelines using JENKINS to deploy backend and frontend code into AWS
EC2 servers and S3 buckets
Configured Load Balancers, Target Groups, CloudFront, Route53, EC2 which will deliver content based on user's request via multiple microservices
Configured ubuntu systems for running applications
Secured APIS using OAuth2.0 token-based authentication/authorization scheme using
Spring security
Built APIS to share their post from docsteth to some third-party applications like
Linkedin and Twitter
DevOps and Continuous Delivery using Jenkins
Experienced in managing reverse proxy through NGINX
Clinivault: Clinivault is an HMS (Hospital Management System) project where the data is stored in the FHIR R4 healthcare information exchange standard
The hospital staff can have their daily internal transactions efficiently
The dynamic platform aims to deliver healthcare services and impart knowledge
Developed backend using Java, Spring Boot, PostgreSQL, and implemented REST services
Installation And Configuration of the IBM fhir OpenSource Server to Standardize the Data
Generation at Hospital for Patient ,Practitioner, Organization and HealthCare Service Entities
Implemented authentication using JWT and configure the Spring security
APIS written for the appointment booking ,slots Creation ,Patient Aadhaar verification etc
Worked extensively with the backend which consisted of Spring, Hibernate, and JPA
Developed Service Layer using POJOs and Spring IOC
Developed Data Access Layer using Hibernate and DAO Design patterns
Used the Spring DAO to handle exceptions for database transactions like open connections, no result, connection aborted, closing the connections, etc
Written and executed various SQL Queries to retrieve the data from the databasePostgres
Used Log4J for debugging
Used JUnit And Mockito Framework for the unit testing of all the java classes
Work collaboratively in a team with fellow developers, sharing ideas to solve complex and challenging business problems
Handled the access-control features using Spring Security
Secured APIs using OAuth2.0 token-based authentication/authorization scheme using Spring
Security
Experienced in working with multiple databases like MySQL and PostgreSQL Databases
General knowledge of cloud technologies, Nginx, and good knowledge of AWS services like
EC2, S3, IAM, etc
MedXperts: MedXperts is an EHR(Electronic Health Records) project where patients can track their medical records irrespective of Hospital and Doctor
MedXperts also provides a schedule management system for Hospitals and Doctors
Experienced in both the development and production phase of web applications using Apache
Experienced in the Springboot framework as a server-side scripting language for creating restful
APIs
Participates in system testing and validation procedures and programming
Work collaboratively in a team with front-end developers on user-facing features and services
Document the work you do, especially APIs that you create using Swagger documentation
Implementing Ayushman Bharat in our application so that patient can retrieve his/herhealth records from any organisation
Developed REST APIS for suggested people and organizations
Built Rest APIS for User's signup and sign in
APIS to manage patient profile
Worked With NDHM API publish by government of India and Implemented the flow for exchanging the records between hospitals and patient PHR applications
Implemeted the CI/CD flow using Jenkins and Github using webhooks
Deployed Application On EC2 and Implemented the Loadbalancing using reverse proxy server as the Nginx
Implemeted the Deployement of the Kafka Server along with the ZooKeeper Server which will be triggered In case of the Patient Profile Changes and Can be published as the Messages in topics to be consumed by Other Services.

Associate Programmer

MAIT SOLUTIONS

At Mait Solution, I was responsible for maintaining the Service Level Agreement (SLA) for Abercrombie & Fitch, a renowned clothing retail brand in the USA
My role involved providing support to the onsite developers in ensuring the smooth operation of servers and conducting health checks on messaging queues and topics
In cases where there were malfunctions or slow processing of messages, I would efficiently handle and process these messages using SQL on the server
Once processed, the data would be loaded back to ensure seamless consumption
Perform the task of maintaining the Production Environment running by providing to Enterprise
Service Bus
Perform the task of maintaining the Queue depth up to Certain Limited mentioned Count
Perform the Task as per the SLA (Service Agreement)
Prepare the Linux Shell Script to Automate the Certain Task of Deque and Enque the Service
Message and Process them
It Reduces the time Significantly
Worked with US based on site teams to main the SLA agreements and solve the P1 task in timely manner.

Education

Bachelor of Technology - Engineering

LDRP-ITR Engineering College

04.2001 -

Skills

Programming Languages:Python and Java used for automation scripting for DB snapshots;

Database: SQL, PostgreSQL;Spring Framework : Spring MVC, Spring Boot, Spring Data JPA,Spring AOP, Interceptor&FiltersPython-Frameworks: Django RestFramework;Web technologies: HTTP, RESTful Services,SSL,Cors-Policies,Orgin Policies and RequestPolicies;Security: Keycloak Authentication Server(OAuth-20 - JWT based authentication;Amazon Web Services: like S3-Buckets, EC2, ELB,Route-53, CloudFront, SNS, Lambda;Operating Server: Ubuntu, Linux;Automation and Tools(CI/CD): Jenkins Server, Docker;Version Control: GitHub, BitBucket;Tools &Services: Apache Kafka, Jitsi-Video Server,N8N Server, Websockets, Webhooks, MavenMySQL Workbench, Adobe-XD, JWT, Twilio,Swagger Implementations;IDE: Eclipse, STS, Intellj IDEA,Visual Studio Code;

Testing :Postman clients ,Swagger, Apache jmeter, SonarQube, Memory Analyzer tool(MAT -Tool)

Devops Skills: Jenkins ,Docker ,Nginx Reverse proxy server, CI/CD, SonarQube, YAML, AWSClouds, Linux Shell scripts (Cron jobs)

Relational databases

Testing and debugging

API design knowledge

Open source

Data visualization

Programming documentation

Software design Expertise

Timeline

Software Developer - Vollmond Innovations Pvt.Ltd

04.2022 - Current

LDRP-ITR Engineering College - Bachelor of Technology, Engineering

04.2001 -

Associate Programmer - MAIT SOLUTIONS