Current Role2024 - Present
Current Engineering Partner
RDGS Tech · Working together since 2 years
Currently working with RDGS Tech on business-focused web, mobile, API and backend delivery.
Current Role
Senior / Team Lead Hybrid Developer
Rajat Gupta
A practical senior developer and team lead who turns messy business requirements into maintainable products, from e-commerce and ERP to transport tracking and mobile workforce management.
6+Years Experience
30+Projects
15+Clients
20+Technologies
Available for web, mobile, APIs and admin systems
Full-stack delivery
Clean interfaces, resilient backends, dashboards, integrations and production-ready launches.
Persona
Senior engineer for business-critical web and hybrid app delivery.
6+ years of delivery experience across CodeIgniter, PHP, Angular, Ionic/Cordova, JavaScript, Ajax, MySQL, payment gateways, SendGrid/Mailchimp, APIs, and backend development.
Owner of Hissab Kitaab hissabkitaab.com
Product Architecture
API Design
Admin Systems
Hybrid Apps
Journey
Latest work to college foundation
Current work appears first, then earlier jobs, family business, LLB completion, internship experience and college foundation.
Family Business2022 - 2024
Joined Family Business
C R Industries · Business operations and ownership support
After leaving PS Intelegencia, joined the family business and managed ERP-driven operations across rice mill workflows, accounting ledgers, admin systems, documentation, digital presence and practical management.
Family Business · ERP OperationsLaw Degree2024
Bachelor of Laws (LLB)
University of Lucknow · First Division
Passed the final LL.B. examination in 2024 with First Division, strengthening legal, compliance, documentation and business decision-making perspective.
LLB · Legal FoundationJob Experience2020 - 2022
Senior Software Engineer I
PS Intelegencia Analytics Pvt. Ltd., Noida
Worked as Senior Software Engineer I from 25 May 2020 to 31 March 2022, delivering production engineering work across backend, API and hybrid application modules.
Senior Software EngineerJob Experience2019 - 2020
Team Lead
Sofbang Technologies Pvt. Ltd., Noida
Worked on Mobile Workforce Management for Emerson Electric, including service requests, work orders, inventory, expense management, offline/online sync and team leadership.
Mobile Workforce · Angular · IonicJob Experience2016 - 2019
Team Lead / Hybrid Developer
Tekshapers Software Solutions Pvt. Ltd., Noida
Led hybrid app delivery across e-commerce, grocery, entertainment, affiliate, transport tracking and tax app products using Ionic, Cordova, AngularJS, Firebase and APIs.
Ionic · Cordova · AngularJSJob Experience2016
Application Developer
Humgenie Pvt. Ltd., Gurgaon
Delivered business listing portal work with CodeIgniter, Core PHP, Stripe subscription integration, ACH workflows, SendGrid API and webhook sync.
CodeIgniter · Stripe · SendGridJob Experience2013 - 2016
Application Developer
Labs Guru Technologies Pvt. Ltd., Noida
Worked on Labsguru.com, project shopping cart flows, Core PHP, Ajax, HTML5, CSS3, JavaScript, jQuery and database structure design.
Core PHP · Ajax · MySQLHighlighted Internship ProgramJun - Aug 2012
International Research Internship
Summer Internship Program
University of Patras, Greece · Wire Communications Laboratory
Selected for an international internship under Prof. Michael D. Logothetis, focused on Tele-Traffic Theory research, SIMSCRIPT II implementation, simulation, testing and documentation.
Internship Program
Tele-Traffic Theory
SIMSCRIPT II
CollegeB.Tech CSE
Computer Science & Engineering
Naraina College of Engineering and Technology, Kanpur · 73%
Built the technical foundation for web development, databases, programming, project coordination and practical software delivery.
Academic Foundation
ERP Ownership
Managed whole ERP ecosystem for family business operations.
Built and managed connected systems for rice mill operations, balance-ledger accounting, admin logins, party ledgers, GST workflows, bank-statement imports and live balance sheets.
Rice Mill ERP
C R Industries
Premium rice mill website, inquiry flow, compliance details, product catalog, ERP mobile app and admin access.
Balance Ledger Balance Sheet SolutionsMulti-firm accounting workspace for party cash ledgers, GST returns, bank imports and live balance sheets.
Admin ERP Maya IndustriesAdmin login system for Maya Industries, maintained as part of the broader ERP operations landscape.
Stack
Skills
Balanced across frontend, backend, databases, cloud tooling, AI-assisted development and team workflows.
AI Assisted Workflow
Faster development with ChatGPT and Claude AI.
Using ChatGPT and Claude AI for planning, code review, debugging, documentation, test ideas, UI content iteration and faster delivery across web, mobile and ERP development.
ChatGPT
Claude AI
Code Review
Debugging
Documentation
Fast Prototyping
Coding Languages
Programming and markup languages I work with.
PHP
JavaScript
TypeScript
HTML5
CSS3
SQL / MySQL
Java
C / C++
CodeIgniter85%
Engineering
PHP85%
Engineering
Angular85%
Engineering
Ionic/Cordova85%
Engineering
JavaScript85%
Engineering
Ajax85%
Engineering
MySQL85%
Engineering
Payment Gateway85%
Integrations
SendGrid/Mailchimp85%
Integrations
REST APIs85%
Integrations
Backend Development85%
Integrations
Team Leadership85%
Integrations
Casework
Discuss a projectProjects
ERP / Business Accounting
Hissab-Kitaab
Har Len-Den Ka Sahi Hisaab — a business accounting and ERP platform with a CodeIgniter web backend and an Angular/Capacitor mobile app.
SaaS / File Tools
ReduceMyFileSize
A subdomain-routed file-utility suite — compress and convert images, PDFs, audio, video, documents and base64. Uploads are deleted right after processing.
Mobile App
AndroidDrop
Nearby device-to-device file transfer app — share files directly between phones over the local network, with a native foreground service keeping transfers alive.
Web App / SaaS
ShortURL7
A free URL shortener that turns long links into custom, shareable short links with QR codes and click analytics.
Web Tool
MySpeedCheck
A free web-based internet speed test measuring download, upload, ping and jitter, with a Lite mode and a speed-over-time chart.
Business App
Daily Cash Entry
A daily cash-book app for Indian shopkeepers and small businesses to track money in/out, expenses and party balances, online or offline.
Accounting / ERP
Balance Ledger
A multi-firm accounting web app for rice-mill and agri-commodity businesses — party ledgers, GST returns, bank-statement import and live balance sheets.
Business Website + ERP
CR Industries
Marketing and inquiry website for a rice-milling company, plus a companion employee ERP mobile app.
Company Website
RDGS Tech
Corporate website for an Indian staffing and software-development firm offering manpower hiring, payroll compliance and custom software.
Company Website
SureSelect IT
Website for an IT staffing and software firm with AI-assisted talent sourcing and custom software services.
CodeIgniter, PHP, MySQL, Payment Gateway
E-commerce Apps
Catalog, cart, checkout and payment-enabled commerce experiences.
PHP, Ajax, MySQL
ERP / Back-office Systems
Internal operational dashboards, reporting and workflow automation.
Ionic, Cordova, APIs
Mobile Workforce Management
Offline/online hybrid mobile tools for field teams.
Resume Highlights
Mobile apps and product work mentioned in the resume
ExpertGuru
KitabMart
AllAboutGrocery
Password Locker App
Air Pollution App
Watchit IT
Leap Transportation
TeeVee App
Secondschools.com
Labsguru.com
Photos
Gallery
Moments from work, events and professional milestones.
Professional Portrait
Rajat Gupta professional profile photo.
Offerings
Services
Focused help for teams that need practical engineering momentum.
Custom Website Development
Professional delivery for custom website development.
Hybrid Mobile App Development
Professional delivery for hybrid mobile app development.
API & Backend Development
Professional delivery for api & backend development.
Admin Panels & ERP Systems
Professional delivery for admin panels & erp systems.
Payment Gateway Integrations
Professional delivery for payment gateway integrations.
Maintenance & Team Leadership
Professional delivery for maintenance & team leadership.
Education
Academic Background
B.Tech CSE
University of Lucknow · 2024 · First Division
Bachelor of Laws
University of Lucknow · 2024 · First Division
Certifications
Credentials
Programming with JavaScript
Meta / Coursera · 2025-10-19
Updates
Blog
Notes, launches and technical writing.
Building practical business software with PHP and hybrid apps
Notes from production delivery across web, mobile, APIs and admin systems.
Read article
Inquiry
Let's build the next serious product.
Lucknow, Uttar Pradesh, India