B.Tech graduate · open to full-time SDE roles · 2026

I build backend systems and AI-powered tools people actually use.

I'm Mitesh Thummar, a software engineer who ships secure fintech APIs, RAG-based document intelligence, and inclusive mobile experiences. Most recently: an AI document chat platform with vector search and grounded LLM answers — and a production digital wallet with atomic transfers.

View projects ↓ GitHub ↗
8.78
CGPA / 10
5
Shipped Projects
2
Internships
1
Publication

Technical skills

// toolkit
Languages
Java C C++ Python
Frontend
React.js HTML CSS Tailwind XML
Backend
Node.js Express.js ASP.NET Core REST APIs
AI / Vector
RAG OpenAI API Pinecone Embeddings GPT-4o
Databases
MongoDB MSSQL
Tools & Deploy
Git Postman Swagger Render Vercel Figma Android Studio

Work experience

// career
Jan 2025 — Present
Trust Fintech Ltd
Software Engineer Intern
  • Built a voice-based UPI application for secure digital payments for visually impaired users.
  • Designed accessible Braille-inspired XML layouts with voice command features on Android.
  • Integrated REST APIs for authentication, transaction processing, and real-time data handling.
  • Conducted accessibility testing using screen readers and low-vision simulators.
Aug 2023 — Jun 2024
AsthaTech
Embedded Programmer Intern
  • Designed and implemented a 2-axis robotic arm using servo motors.
  • Programmed Arduino microcontrollers using Embedded C for motion control automation.
  • Calibrated strain gauge sensors to develop an accurate weight measurement system.

Selected projects

// 2024 — 2026
DocuMind — AI Document Intelligence Platform
2026
Upload any PDF and chat with it using AI. Documents are chunked, embedded via OpenAI, and stored in Pinecone for semantic retrieval. Answers are citation-grounded — the model cites exact source chunks and refuses to hallucinate when the answer isn't in the document. Includes cross-document search (ask across all your PDFs at once), auto-generated summaries, and PDF citation view that jumps to the exact source page.
⌥ View repo
RAG Pipeline OpenAI Embeddings Pinecone Node.js Express MongoDB React GPT-4o-mini
Full-stack · Live in production
PayVault — Digital Wallet & Payment API
Jan 2026 — Jun 2026
A production-grade digital wallet built end to end. Node.js/Express/MongoDB API with JWT auth, atomic peer-to-peer transfers via MongoDB sessions, OTP verification for high-value transactions, rate limiting, and Swagger docs — paired with a React frontend for balance tracking, transfers, and transaction history. Deployed live on Render and Vercel.
⌥ API repo ⌥ UI repo ↗ Live app ↗ API docs
Node.js Express MongoDB React JWT Swagger
UPI Payment App for Visually Impaired Users
Feb — May 2025
Accessibility-focused mobile app featuring a custom Braille keyboard module, voice-based authentication, text-to-speech feedback, and gesture-based navigation for secure digital transactions. Published as peer-reviewed research.
⌥ View repo
Android Studio Java A11y
WhatsApp Banking Automation System
Sep — Dec 2024
Core-banking integration middleware using the WhatsApp Cloud API and ASP.NET Core. Automated KYC validation and balance inquiries via webhook-driven RESTful APIs, secured with token verification.
ASP.NET Core MSSQL Webhooks
ONDC Buyer Application Workflow
Mar — Apr 2026
Order lifecycle workflow handling complete ONDC commerce flows — search, select, init, confirm, cancel — with Postman scripts for transaction and environment testing, and real-time order tracking.
REST APIs Postman ONDC

Publication

// research
International Journal on Advanced Computer Engineering and Communication Technology · Vol. 14, Issue 3S · 2025
Secure and Assistive UPI Transaction System for Visually Impaired People
DOI: 10.65521/ijacect.v14i3s.1594

Education

// background
B.TECH — INFORMATION TECHNOLOGY · GRADUATE
St. Vincent Pallotti College of Engineering and Technology, Nagpur
2022 – 2026
8.78CGPA / 10
HIGHER SECONDARY (12TH)
Shree Swaminarayan Gurukul International School, Hyderabad
2022
82.8PERCENT
SECONDARY (10TH)
Shree Swaminarayan Gurukul International School, Nagpur
2020
82.0PERCENT

Certifications & leadership

// more
NPTEL: Programming in Java
NPTEL: Deep Learning
C Programming
C++ Programming
Technex 2025 — Co-Head of Documentation
Industrial Automation with IIOT
// let's connect

Have a project or opportunity?
Let's talk.

B.Tech graduate · open to full-time SDE roles, internships, and collaborations.

✉ miteshthummar2004@gmail.com ☎ +91-7620176799 in/ LinkedIn ⌥ GitHub