Rajesh Kumar

Based in Delhi, India · Senior Software Engineer · Available for Remote Work Worldwide

Rajesh KumarFull Stack & AI Developer

Building scalable web applications, AI-powered chatbots, product assistants, SaaS platforms, and business solutions.

$ building

01 / Profile

I build full-stack and AI solutions that solve real business problems.

I work across full-stack engineering, AI-powered applications, and scalable business systems. My experience includes building intelligent chatbots, product assistants, CRM platforms, SaaS applications, and custom software solutions designed around real business needs.

With 5+ years of software development experience, I work across the complete development lifecycle — from frontend and backend development to database design, API integrations, AI features, and production deployment.

Rajesh Kumar — Senior Software Engineer, Full Stack & AI Developer

Rajesh Kumar · Delhi, India

Full-Stack EngineeringAI Solutions & AssistantsSaaS, CRM & Business PlatformsAPIs, Data & Automation

02 / Expertise

From full-stack engineering to intelligent solutions.

A practical, end-to-end approach to building scalable web applications, AI-powered products, and business systems.

01

Full-Stack Development

Build reliable, scalable applications.

From frontend interfaces to backend architecture, I build and maintain web applications with a focus on performance, maintainability, and real-world business requirements.

  • Laravel & PHP
  • Node.js & Python
  • React, Next.js & Vue.js
02

AI Chatbots & Product Assistants

Intelligent experiences powered by AI.

I build AI-powered chatbots and product assistants that help users access business knowledge, discover products, and interact with applications through natural conversations.

  • AI chatbot development
  • Product discovery & recommendations
  • AI APIs & knowledge integration
See case study →
03

APIs, Data & Automation

Connecting systems and automating workflows.

I design and integrate APIs, connect third-party services, and build automation that helps applications and business processes work together more efficiently.

  • REST APIs & integrations
  • MySQL, PostgreSQL & MongoDB
  • Python automation & vector databases
04

SaaS, CRM & Deployment

From requirements to production.

I develop and maintain CRM systems, SaaS platforms, and business applications — from architecture and feature development to testing, deployment, and ongoing improvements.

  • SaaS & CRM development
  • Docker, Git & CI/CD
  • Linux & production deployment
See case study →

03 / Selected Impact

Building systems that solve real business problems.

A selection of AI-powered products, business platforms and full-stack solutions designed for real-world use.

AI Solutions / 01

AI Chatbot & Knowledge Assistant

Developed an AI-powered chatbot that enables users to ask questions and retrieve relevant information from business knowledge through natural conversations. The solution combines AI search with structured knowledge sources to provide faster and more contextual responses.

AI ChatbotKnowledge SearchPython · FastAPIQdrant
Read case study →

AI-Powered

Intelligent knowledge assistance

E-commerce AI / 02

AI Product Assistant

Built an AI-powered product discovery assistant to help customers find relevant products, explore categories, and get answers based on product data and catalog information.

The assistant improves product discovery by allowing users to interact with the catalog through natural language instead of relying only on traditional filters and search.

Product DiscoveryAI SearchRecommendationsE-commerce
Read case study →

Smart Discovery

Better product discovery

Business Systems / 03

Custom CRM & SaaS Platforms

Developed and enhanced custom CRM and SaaS applications for managing customers, projects, teams, workflows, and day-to-day business operations.

Worked across the complete development lifecycle, including backend development, database design, API integrations, frontend features, automation, deployment, and ongoing system improvements.

LaravelPHPMySQLVue.js
Read case study →

End-to-End

From requirements to production

Automation & Integration / 04

APIs, Automation & Connected Systems

Developed REST APIs, third-party integrations, scheduled workflows and automation solutions to connect business systems and reduce manual work.

REST APIsPythonNode.jsAutomation

Scalable

Built for growth and maintenance

04 / Journey

Building experience through real-world software development.

A progression from hands-on PHP development to full-stack engineering, AI-powered applications, and scalable business solutions.

Apr 2022 — Present

Senior Software Engineer

Nethues Technologies (P) Ltd.

Full Stack · Laravel · AI · APIs

Working on the development and maintenance of scalable web applications, CRM platforms, SaaS products, and AI-powered solutions.

My work covers the full development lifecycle, including backend architecture, frontend development, API integrations, database design, automation, deployment, and ongoing system improvements. I collaborate on solving real-world business requirements and building reliable production systems.

Skills:Full StackLaravelAIAPIsSaaS

Feb 2021 — Mar 2022

PHP Developer

Ayurs Infotech

PHP · MySQL · Web Development · Integrations

Started my professional software development journey by building and improving PHP-based web applications and business solutions.

Worked on application enhancements, feature development, bug fixing, database-driven functionality, API integrations, Meta Pixel implementation, and attendance management systems. This role helped me build a strong foundation in backend development and understanding real-world business requirements.

Skills:PHPMySQLWeb DevelopmentAPI Integration

05 / Technology Landscape

The stack behind the work.

Backend & Full Stack

LaravelPHPNode.jsPython

Frontend

ReactNext.jsVue.jsJavaScriptTypeScript

Data

MySQLPostgreSQLMongoDBVector Databases

AI & Integration

AI ChatbotsProduct AssistantsRAGAI APIsREST APIs

Tools & Deployment

GitGitHubDockerLinuxServer Deployment

06 / Why Hire Me

A practical developer with experience across the full development lifecycle.

I work on both new and existing applications, from understanding requirements and building features to integrating APIs, working with databases, deploying applications, and improving production systems.

01

End-to-End Development

Experience working across frontend development, backend systems, databases, APIs, and deployment.

02

Business-Focused Development

I focus on understanding the actual requirement and building features around how the business or users will use the system.

03

Full-Stack + AI Experience

Hands-on experience with web applications alongside AI chatbots, knowledge assistants, product assistants, search, and automation.

04

Working with Existing Systems

Comfortable working with existing codebases, adding new features, fixing issues, and improving applications without unnecessarily disrupting existing functionality.

05

Production & Deployment Experience

Experience supporting applications beyond local development, including server configuration, deployment, Docker, databases, and ongoing maintenance.

06

Remote Collaboration

Available to work remotely with businesses, agencies, and development teams internationally.

07 / Contact

Have a project in mind?
Let's build it together.

Whether you need a new application built from scratch, an AI assistant for your business, or help improving an existing system — I'd love to hear about it.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.