JAY KAKKAR

Full Stack Developer

LinkedIn

About

Highly accomplished Full Stack Developer with 2.5+ years of experience specializing in scalable microservices and modern web applications using React, Next.js, Node.js, and AWS. Proven expertise in integrating AI-powered automation and optimizing backend systems, consistently achieving up to 40% gains in system performance and efficiency. Adept at translating complex business requirements into robust, production-ready technical solutions within dynamic Agile environments.

Work Experience

Software Developer Engineer

Hoi - Your Travel Companion (GMR Group)

Aug 2024 - Dec 2099

Delhi, Delhi, IN

Currently developing and optimizing an internal corporate travel platform, enhancing user experience and operational efficiency for a large employee base.

  • Engineered an internal corporate travel platform for GMR and HOI, significantly reducing travel booking time by 30% and cutting expense tracking efforts by 25% for 5,000+ employees.
  • Developed a scalable notification service from scratch, integrating AWS SES/FCM and template-based messaging to achieve 99% success rate for high-volume delivery to 100K+ users.
  • Leveraged TBO APIs to incorporate flight booking into the HOI application, enhancing platform utility and achieving 20% corporate traveler adoption.
  • Integrated Meru Cabs into the HOI application, expanding transportation options and notably improving overall user experience and convenience.
  • Mastered Docker for containerization, optimizing project environments, and boosting deployment efficiency and scalability through robust CI/CD practices.

Software Developer Engineer

Coffeee.io

Nov 2022 - Aug 2024

Gurgaon, Haryana, IN

Architected and developed innovative AI-powered solutions, microservices, and web applications to enhance recruitment processes and user engagement.

  • Architected a Chrome extension leveraging OpenAI to extract candidate skills from LinkedIn profiles, improving candidate evaluation speed by 40% and reducing recruiter sourcing time by 35%.
  • Integrated an Upload Chunk Microservice, ensuring reliable assessment recordings, boosting performance by 25% and cutting maintenance downtime by 40%.
  • Built comprehensive assessment, candidate, and recruiter panels with Next.js/React.js, leading to a 30% improvement in recruiter workflows and overall engagement.
  • Developed an Audio/Video Merger using Amazon SQS/S3 and integrated Amazon Rekognition for automated red-flag detection, enhancing content moderation.
  • Automated engagement via WhatsApp/email and led recruiter panel improvements, streamlining recruitment and reducing manual follow-up time by 50%, while cutting time-to-fill by 30% and boosting hire quality by 20%.
  • Migrated over 50 Python scripts to Java, accelerating processing speed by 40% and enhancing system reliability.

Software Developer Engineer Intern

IEZAL

Aug 2021 - Nov 2021

Remote, N/A, N/A

Designed and implemented interactive online learning systems and integrated payment solutions to enhance user experience and revenue.

  • Designed and implemented a live broadcasting system using React and Sockets, facilitating interactive and engaging online classes for users.
  • Deployed and managed AWS EC2 infrastructure and S3 bucket storage, ensuring seamless access to recorded lectures for a broad user base.
  • Pioneered the integration of a PayPal payment gateway, significantly enhancing user experience and driving a 40% increase in course sales and revenue.

Education

Information Technology

Maharaja Surajmal Institute of Technology

9.1/10 CGPA

Jan 2019 - Jan 2023

Delhi, Delhi, IN

Skills

Programming Languages

  • C++
  • JavaScript
  • TypeScript
  • Python
  • Java

Databases

  • PostgreSQL
  • MongoDB
  • MySQL
  • Redis

Development Tools

  • Postman
  • VS Code
  • Jira

Web Frameworks

  • Node.js
  • Express.js
  • React.js
  • Next.js

DevOps & Cloud

  • AWS (S3, EC2, SQS)
  • Docker
  • CI/CD

AI/ML & Testing

  • OpenAI
  • Web Scraping
  • Unit Testing (Jest)