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Kshitiz Gupta Full-Stack & Founder
Co-Founder @ Mantra Devs • Open for Technical Collaborations

Kshitiz Gupta

Full-Stack Engineer & Technical Founder

Co-Founder at Mantra Devs Pvt. Ltd. with deep expertise in engineering scalable web platforms, mission-critical enterprise systems, and multi-tenant architectures. Specialized in React (Vite), Node.js, Express, and PostgreSQL/Supabase. Experienced in delivering production-ready, tax-compliant IRD billing systems, double-entry accounting engines, automated background cron jobs, and seamless local payment & logistics integrations.

Key Achievements & Impact

40+

Medical Facilities Scaled

Engineered ClinicSathi clinical & financial SaaS; deployed IRD-compliant billing, double-entry ledger & Fonepay integration across Nepal.

10 Clients

Onboarded in 60 Days

Launched EcomOrigin multi-tenant SaaS platform empowering Nepali online merchants with instant storefronts and automated logistics.

Tax-Compliant

IRD & FinTech Infrastructure

Delivered Inland Revenue Department (IRD) certified tax workflows, double-entry bookkeeping, and payment gateways (Fonepay, NCHL).

Production Works & SaaS Platforms

Engineered for Scale & Reliability

40+ Clinics Across Nepal

ClinicSathi

Clinical & Financial Management SaaS

Mission-critical clinical management SaaS platform engineered for 40+ healthcare facilities in Nepal. Features a regulatory tax-compliant IRD billing engine, double-entry accounting ledger module, automated cron notifications, and encrypted patient data management.

  • IRD-compliant tax billing & standalone double-entry ledger
  • Integrated Fonepay QR, NCHL, Sparrow SMS & cron scheduler
  • AES database encryption & strict Role-Based Access Control (RBAC)
React (Vite) Node.js PostgreSQL Fonepay NCHL IRD Billing
clinicsathi.com ↗
10 Clients in 60 Days

EcomOrigin

Multi-Tenant E-Commerce SaaS Platform

Instant-storefront SaaS platform architected for online merchants to deploy customizable web stores instantly. Built a flexible template-rendering engine, comprehensive back-office merchant dashboard, and direct courier logistics synchronization.

  • Custom template-rendering engine for rapid merchant storefronts
  • Two-way customer-merchant messaging & in-app mailbox
  • Courier API integration (Nepal Can Move) & Fonepay dynamic QR checkout
React Node.js Express PostgreSQL Courier Logistics Fonepay
ecomorigin.com ↗
Co-Founder & Lead Engineer

Mantra Devs Pvt. Ltd.

Software Firm & Enterprise Web Solutions

Co-founded a forward-thinking software development company dedicated to engineering robust web applications, enterprise software, and scalable SaaS solutions for business clients.

  • Directing technical architecture and product roadmap
  • Leading end-to-end delivery of enterprise web platforms
  • Spearheading high-security payment and API integrations
Enterprise Software System Design React Ecosystem Node.js PostgreSQL
mantradevs.com ↗
E-Commerce Storefront

Retro Kit Nepal

Full-Stack E-Commerce Platform

Full-stack sports apparel e-commerce store with user registration, authentication, and Admin/Customer role-based profiles. Includes an administrative dashboard for real-time inventory management, order tracking, and customer records.

  • Admin/Customer role-based auth and secure sessions
  • Comprehensive inventory management & order dispatch
React Vite CSS PostgreSQL Node.js
retrokitnepal.com ↗
Corporate Web Portal

APG Builders

Business & Construction Website

Engineered a modern, responsive corporate web portal for a premier construction enterprise. Built with interactive project galleries, inquiry contact handling, and optimized mobile performance deployed via GitHub Pages.

  • Interactive construction project portfolio galleries
  • High-performance mobile optimization on GitHub Pages
HTML5 CSS3 JavaScript GitHub Pages SEO
apgbuilders.com.np ↗

Technical Mastery & Specializations

Area of Expertise

Frontend Architecture

Modern, reactive & accessible UIs

Specialized in architecting performant React applications with Vite build tooling, modular component libraries, responsive Tailwind CSS styling, and seamless state management.

React Vite JavaScript (ES6+) Tailwind CSS HTML5 / CSS3 Responsive Design

Backend & APIs

High-throughput microservices

Building robust RESTful APIs and real-time WebSocket pipelines using Node.js and Express. Experienced in background queue processing, cron jobs, and high-concurrency systems.

Node.js Express RESTful APIs WebSockets Automated Cron Jobs Microservices

Database & Storage

Relational modeling & RLS security

PostgreSQL relational schema design, query optimization, indexing, and connection pooling. Expertise in Supabase with Row-Level Security (RLS) policies and transactional integrity.

PostgreSQL Supabase (RLS) Database Management ACID Transactions Query Optimization

Integrations & FinTech

Local payment & regulatory gateways

Inland Revenue Department (IRD) tax-compliant billing, Fonepay Dynamic QR checkout, Nepal Clearing House (NCHL), Sparrow SMS gateway, and courier logistics (Nepal Can Move).

IRD-Compliant Billing Fonepay QR NCHL / connectIPS Nepal Can Move APIs Sparrow SMS

Security, Quality & DevOps

Defense in depth & automated workflows

Implementing robust Role-Based Access Control (RBAC), end-to-end data encryption for sensitive patient health information, thorough input sanitization, immutable audit logging, Git/GitHub version control, unit testing, and automated workflows.

RBAC Data Encryption Input Validation Audit Logging Git & GitHub Unit Testing Automated Workflows

Career Track Record

Technical Experience

Co-Founder & Software Engineer

2025 – PRESENT
Mantra Devs Pvt. Ltd. • mantradevs.com

Co-founded a software development firm specializing in scalable web applications, enterprise software solutions, and bespoke technical architectures for domestic and international clients.

Lead Architect & Full-Stack Engineer — ClinicSathi

2025 – PRESENT
Clinical & Financial Management SaaS • clinicsathi.com
Stack: React, Vite, Node.js, PostgreSQL, Fonepay, NCHL, Sparrow SMS

Scaled the platform to serve 40+ medical facilities across Nepal. Engineered an IRD-compliant billing engine and a standalone double-entry accounting module for ledger tracking. Integrated local payment gateways (Fonepay and NCHL), automated SMS notifications, cron-based scheduling, and strict role-based access control. Implemented database encryption to protect sensitive patient records and medical histories.

Platform Architect & Creator — EcomOrigin

2026 – PRESENT
Multi-Tenant E-Commerce SaaS • ecomorigin.com
Stack: React, Node.js, PostgreSQL, Express, Courier APIs

Architected an instant-storefront platform for online merchants, acquiring 10 active business clients within 60 days. Built a customizable template-rendering engine and complete administration dashboard. Developed an in-app customer mailbox for two-way communication, inventory tracking, courier logistics integrations, and Fonepay checkout.

Full-Stack Developer — Retro Kit Nepal

JAN 2026
E-Commerce Store • retrokitnepal.com
Stack: React, Vite, CSS, PostgreSQL

Built a secure full-stack online store with user registration, authentication, and Admin/Customer role-based profiles. Developed an administration dashboard for inventory, orders, and customer data.

Web Developer — APG Builders

SEP 2025
Business Website • apgbuilders.com.np
Stack: HTML5, CSS3, JavaScript, GitHub Pages

Developed a responsive company website with interactive project galleries and contact forms. Optimized mobile performance and deployed through GitHub Pages.

Academic Foundation

Education

2021 – 2025

Bachelor of Engineering in Computer Engineering

United Technical College

Rigorous foundations in computer algorithms, data structures, software engineering, databases, distributed networking, and system security.

2018 – 2020

Higher Secondary Education (+2 Science)

Apex Academy, Kshetrapur

Specialized curriculum in Mathematics, Physics, and Chemistry fostering analytical problem solving and scientific computing.

Until 2018

Secondary Education (NEB)

Balkumari English School, Narayangadh

Secondary education completion with exemplary academic performance and foundational mathematics & sciences.

Let's Build Something High-Impact

Interested in working together or exploring technical solutions?

Whether you need to engineer an IRD-compliant billing system, build a high-performance multi-tenant SaaS, or seek technical co-founder leadership for your next venture, my inbox is always open.

Send Message