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.

View Work Download Resume

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.

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

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 Operations

Law 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 Foundation

Job 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 Engineer

Job 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 · Ionic

Job 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 · AngularJS

Job 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 · SendGrid

Job 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 · MySQL

Highlighted 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 Solutions

Multi-firm accounting workspace for party cash ledgers, GST returns, bank imports and live balance sheets.

Admin ERP Maya Industries

Admin 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.

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

Projects

Discuss a project

CodeIgniter, PHP, MySQL, Payment Gateway

E-commerce Apps

Catalog, cart, checkout and payment-enabled commerce experiences.

Project Details

PHP, Ajax, MySQL

ERP / Back-office Systems

Internal operational dashboards, reporting and workflow automation.

Project Details

Ionic, Cordova, APIs

Mobile Workforce Management

Offline/online hybrid mobile tools for field teams.

Project Details

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.

Update

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

rajatinvoice@gmail.com +91 8887905070