Full Stack Developer @ Bot Buddy Tech | Passionate Full-Stack Developer | Driving Innovation & Scalable Solutions
Full Stack Developer with 3.5 years of experience building and shipping production-grade SaaS products. I specialize in React, Next.js, Node.js, PostgreSQL, and Supabase, and I take end-to-end ownership of products from architecture through deployment. Currently at Bot Buddy Tech, I have built and launched multiple real-world platforms including an AI-powered legal document generation tool, a tokenless LLM inference system on GPU infrastructure, and a Shopify SaaS app managing large-scale discount campaigns. Before that I worked at AiriQ Online integrating B2B flight ticketing APIs and at Accenture supporting international POS systems in a high-volume enterprise environment. I am passionate about clean architecture, AI-powered applications, and solving real problems through software. Open to remote full-time opportunities in full stack development and SaaS product engineering. [email protected] | bikimandalportfolio.vercel.app
Bot Buddy
6 mos · Siliguri
Air iQ
9 mos · Siliguri, West Bengal, India
Cyber World
1 yr 6 mos · Islampur, West Bengal, India
Accenture
7 mos · Bengaluru, Karnataka, India
Provided technical support for international POS systems; diagnosed hardware and software failures; handled incident resolution and system monitoring in a high-volume support environment.
Next Education India Pvt ltd
4 mos · Siliguri, West Bengal, India
Trained educators on ERP systems and digital teaching tools; supported implementation of digital platforms in schools and ensured smooth onboarding.
Bot Buddy Tech
Dec 2025 - Present
Led end-to-end development of SaaS products including discount systems, AI document generation, and LLM infrastructure tools; designed multi-tenant architecture using Shopify OAuth; integrated Shopify Admin API via GraphQL and REST; implemented AI automation workflows using N8N and LLM APIs.
AiriQ Online
Mar 2025 - Nov 2025
Integrated B2B flight ticketing APIs with partner systems for real-time booking workflows; debugged API integration issues; implemented pricing display logic for third-party portals.
Cyber World
Oct 2023 - Mar 2025
Delivered training in programming fundamentals, JavaScript, and core computer science concepts; designed learning paths and hands-on projects; mentored students on problem-solving and development workflows.
Bachelors in Computer Application, Computer Programming, Specific Applications
May 2018 - Jun 2021
Bachelor of Computer Applications (BCA)
2018 - 2021
Built a Shopify embedded SaaS app for generating and managing bulk discount codes. Supported percentage and fixed discounts, expiry dates, usage limits, OAuth authentication, billing integration, Polaris UI, and processing of 5,000+ discount codes per campaign. Technologies: Next.js, React, Polaris, Node.js, Shopify Admin API, Shopify OAuth, Shopify Billing API, PostgreSQL, Supabase, Vercel.
Built a platform to run LLMs on GPU pods without exposing API keys. Automated GPU pod setup on RunPod, developed request routing with fallback mechanisms, and deployed containerized inference services using Docker and vLLM through REST APIs. Technologies: Next JS, RunPod, Node.js, Python, vLLM, Docker, REST APIs.
Built an AI-powered SaaS platform for generating and customizing legal agreements with PDF/DOCX export. Developed chatbot-driven document generation, hybrid templates and AI pipelines, secure PostgreSQL storage with RLS, Razorpay payments, and Supabase Auth. Technologies: Next.js, React, Tailwind CSS, Node.js, Supabase, OAuth, OpenAI LLM APIs, Razorpay, Vercel.
Developed a full-stack billing and inventory management system with product stock tracking, sales management, real-time reports, automatic stock updates, low-stock visibility, invoice generation, transaction history, and Zustand state management. Technologies: TypeScript, Next.js, Tailwind CSS, Zustand, Vercel.
Built an inventory and billing application with real-time stock updates, transaction tracking, itemized invoices, automated receipt generation, thermal printer integration, and Prisma data models for inventory and sales management. Technologies: TypeScript, Next.js, Prisma.