JAY KAKKAR

Full Stack Developer
Delhi, IN.

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

Hoi - Your Travel Companion (GMR Group)
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Software Developer Engineer

Delhi, Delhi, India

Summary

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

Highlights

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.

Coffeee.io
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Software Developer Engineer

Gurgaon, Haryana, India

Summary

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

Highlights

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.

IEZAL
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Software Developer Engineer Intern

Remote, N/A, N/A

Summary

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

Highlights

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

Maharaja Surajmal Institute of Technology
Delhi, Delhi, India

B.Tech

Information Technology

Grade: 9.1/10 CGPA

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).