Gunjan User

I’m a Computer Science Engineering undergraduate focused on building high-quality software products—especially scalable backends, clear API design, and cloud-ready workflows. My strong foundation in Object-Oriented Programming, Data Structures & Algorithms, DBMS, Operating Systems, and Computer Networks helps me move from requirements to reliable implementations.

In my Software Developer Intern role, I developed, tested, and maintained 10+ RESTful APIs using Node.js, Express.js, and MongoDB, following modular design and clean coding practices. I also executed MySQL-to-Snowflake migration workflows using AWS services to support reliable data transfer, validation, and transformation for large-scale datasets.

I worked closely with the Data Science team to support client projects through data preprocessing, exploratory analysis, visualization, and business reporting. I built analytical dashboards for better trend identification and implemented monitoring and evaluation pipelines for AI-powered workflows using Langfuse to improve observability and performance tracking.

My projects reflect the same focus on end-to-end value: I built BillSutra, an AI-powered billing & inventory management SaaS with secure JWT authentication, GST-ready invoicing, analytics dashboards, and subscription management. I’m also building JobCompass AI for job application tracking with Spring Boot, JWT-based security, scalable REST APIs, and AI-driven resume matching using LLM APIs.