Looking for a job

Er Roshan kumar Yadav

@erroshankumaryadav

Message

Java Developer at Cognizant who launched Swari Sadhan, a vehicle marketplace and showroom SaaS platform.

India

Message

At Cognizant, I develop Java and Spring Boot microservices for enterprise financial applications for the American Express Bank client. I also design REST APIs and troubleshoot production issues across distributed services.

I independently architected, developed, and launched Swari Sadhan, a vehicle marketplace and showroom SaaS platform, and commercialized it as a paid subscription service. I also built and launched eSalon, a salon management platform used by 100+ salons and generating ₹20,000+ in monthly revenue.

Experience

Work history, roles, and key accomplishments

Current

Java Developer

Current

Cognizant

Jun 2025 - Present (1 year 4 months)

Develop and enhance Java/Spring Boot microservices for enterprise financial applications, implementing business workflows, validations, exception handling, and service integrations. Design and integrate RESTful APIs using Spring Boot and OpenAPI/Swagger, and optimize SQL queries for performance.

Java Spring Boot Microservices REST APIs Swagger SQL AWS Git Maven Jenkins CI CD

Full Stack Developer

CodroidHub Pvt. Ltd.

Jul 2023 - May 2025 (1 year 10 months)

Delivered end-to-end web applications and CRM solutions for client projects, developing backend services with Java/Spring Boot and responsive frontend interfaces with React.js. Designed and integrated RESTful APIs, database workflows, authentication, and business logic.