Summary
Overview
Work History
Education
Skills
Certification
Software
Timeline
Hi, I’m

RAGUL SINGH D

Full Stack Developer & QA Engineer
Chennai
RAGUL SINGH D

Summary

Results-driven Full-Stack Developer and QA Engineer with 3+ years of experience in software development and testing. Expert in building scalable web applications using the MERN Stack (MongoDB, Express.js, React, Node.js) and optimizing system performance by 20%. Proven track record in Agile/Scrum environments, handling RESTful API development and Docker containerization. Adept at Manual Testing, Root Cause Analysis, and Test Automation using Python. Committed to delivering high-quality code and robust software solutions.

Professional engineer with robust experience in developing and maintaining complex web applications. Skilled in both front-end and back-end technologies, adept at problem-solving, and always delivering high-quality results. Strong focus on team collaboration, adaptability, and consistently meeting project goals. Proficient in JavaScript, Python, HTML/CSS, and database management, ensuring seamless integration and user satisfaction.

Overview

3
years of professional experience
2
Certifications
2
Languages

Work History

Cognizant

Associate (Full-Stack Engineer)
07.2024 - Current

Job overview

  • Architected and maintained scalable MERN Stack web applications, directly improving overall system performance and load times by 20%.
  • Designed and deployed RESTful APIs using Node.js and Express.js, successfully handling 50+ endpoints for high-volume data exchange.
  • Engineered responsive front-end user interfaces using React.js and Redux, ensuring 100% mobile compatibility and seamless UX.
  • Orchestrated database design and query optimization using MongoDB and Mongoose, reducing data retrieval latency by 15%.
  • Streamlined deployment processes by implementing Docker containers on AWS (EC2, S3), reducing deployment time by 30%.
  • Developed responsive web applications to provide consistent user experiences across multiple devices and platforms.
  • Developed user-friendly interfaces using HTML, CSS, JavaScript, and other front-end technologies for seamless user experience.

Cognizant

Programmer Analyst
10.2022 - 07.2024

Job overview

  • Spearheaded the development of new features for client-facing applications, resulting in a measurable 15% increase in user engagement.
  • Collaborated within an Agile/Scrum team to identify, troubleshoot, and resolve 200+ critical defects, ensuring a bug-free release cycle.
  • Integrated secure third-party services like Razorpay and Google Authentication (OAuth), enhancing application security.
  • Utilized Python and JavaScript scripting to automate repetitive back-end maintenance tasks, saving the team 8 hours per week.
  • Conducted rigorous Root Cause Analysis (RCA) on production issues, minimizing system downtime to near zero.
  • Reduced system errors and improved reliability through rigorous debugging processes.
  • Consistently met project deadlines by effectively managing priorities and maintaining a strong work ethic.

Education

Sri Ramakrishna Engineering College

B.E. from Electronics and Instrumentation Engineering
01.2022

University Overview

GPA: 7.6/10

Skills

Web Development: MERN Stack, Reactjs, Redux, Nodejs, Expressjs, HTML5, CSS3, JavaScript (ES6), RESTful APIs

DevOps & Cloud: Docker, AWS (EC2, S3), CI/CD Pipelines, Git, GitHub

Git version control

RESTful API integration

Nodejs experience

SQL database management

Certification

Full-Stack Development (Guvi)

Software

Vs Code

Veeva

Medidata

Eclipse

Oracle SQL

Timeline

Associate (Full-Stack Engineer)
Cognizant
07.2024 - Current
Programmer Analyst
Cognizant
10.2022 - 07.2024
Sri Ramakrishna Engineering College
B.E. from Electronics and Instrumentation Engineering
RAGUL SINGH DFull Stack Developer & QA Engineer