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Full-Stack & AI Engineer

Full-Stack & AI Engineer building scalable web apps, CRM systems, and AI-powered products.

I have 5+ years of experience building fast, SEO-friendly, and scalable applications using Next.js, React, Node.js, PHP, Laravel, and CodeIgniter, with hands-on work in RAG systems, AI voice agents, and LLM integrations.

Tech summary

Full stack engineering across web apps, CRM systems, SaaS products, AI integrations, and SEO-optimized business websites.

Next.jsReactNode.jsLaravelCodeIgniterLLM Integration
5+ yearsExperience
Full stackCore mode
Web + AIFocus

About

Full-stack and AI engineer focused on scalable products and business systems.

My experience spans modern frontend engineering, backend APIs, CRM customization, automation, and AI-assisted workflows for real operational use cases.

I work with Next.js, React, Node.js, PHP, Laravel, and CodeIgniter to build eCommerce products, Perfex CRM modules, SaaS dashboards, internal business systems, and SEO-friendly websites. I also have hands-on experience with RAG systems, AI voice agents, LLM integrations, and workflow automation.

  • 5+ years of experience across eCommerce, CRM systems, SaaS products, and SEO-friendly business websites
  • Hands-on delivery with Next.js, React, Node.js, PHP, Laravel, and CodeIgniter
  • Real production work with RAG systems, AI voice agents, LLM integrations, REST APIs, and internal automation

Services

Services focused on product clarity, delivery speed, and maintainable code.

The work spans frontend interfaces, backend systems, performance improvements, and long-term product support.

Website development

Modern websites and business platforms built with clean frontend architecture, responsive layouts, and SEO-friendly structure.

eCommerce development

WooCommerce and custom store experiences with stronger product presentation, performance, and business workflow integration.

SaaS and admin dashboards

SaaS products, admin dashboards, and internal business tools designed for scalability, usability, and cleaner workflows.

Backend APIs and integrations

Custom APIs, third-party integrations, webhooks, and backend systems for business operations and product features.

CRM and Perfex customization

Perfex CRM modules, budgeting systems, manpower deployment, cash flow tools, QuickBooks integration, and AI-enabled workflows.

AI and automation solutions

RAG systems, AI voice agent workflows, LLM integrations, scraping automation, and business process optimization.

Projects

Selected projects with clear scope, stack, and contribution.

Each card is designed to help recruiters and clients understand what was built, why it mattered, and where my contribution fits.

Movie seat booking platform concept with booking flow and responsive interface

Movie Seat Booking

A booking platform focused on clean seat selection, responsive performance, and a user-friendly cinema reservation flow.

Role: Full-stack development and frontend architecture

Next.jsReact.jsNode.jsResponsive UI
AI voice agent SaaS concept showing workflow panels and automation interface

AI Voice Agent SaaS

A SaaS product built around AI voice workflows and intelligent automation for real user interactions.

Role: Full-stack engineering with AI integration

Next.jsNode.jsLLM IntegrationAI Voice Agents
Boxing eCommerce storefront concept with product cards and storefront navigation

Tunnel Vision MCR Boxing Store

A WooCommerce boxing store built to support product discovery, online orders, and a cleaner shopping experience for a focused niche brand.

Role: Frontend implementation and eCommerce experience optimization

WooCommerceFrontend UISEOPerformance
Online consultation website concept with healthcare-focused sections and call-to-action areas

Dr Iqra Naseer Online Consultation

A healthcare consultation website focused on trust, readability, and a smoother online appointment experience.

Role: Frontend development and website delivery

Next.jsResponsive UISEOContent structure
Online pharmacy storefront concept with product sections and healthcare-focused interface

Nomedco Online Pharmacy

An online pharmacy store focused on product browsing, trust, and a smoother healthcare eCommerce experience.

Role: Frontend and eCommerce implementation

WooCommerceFrontend UISEOOnline Store
Business web platform concept with modern layout blocks and product presentation

Madiotic Web Platform

A modern company web presence and product-facing platform built during my software engineering role with a focus on frontend quality and service integration.

Role: Software engineer working across frontend and backend integrations

React.jsNext.jsNode.jsExpress.js

Case Studies

A short look at how problems were approached and solved.

The structure stays concise while still showing product thinking, implementation choices, and outcomes.

Perfex CRM enterprise customization

Problem

The business needed advanced budgeting, resource allocation, manpower deployment, cash flow, and integration features that were not available in the base CRM.

Solution

Built modular Perfex CRM extensions for budgeting, resource planning, QuickBooks integration, LLM-based features, and API management without modifying the CRM core.

Result

The system stayed upgrade-friendly while supporting real internal business workflows across finance, manpower, and operations.

Role

Full-stack engineer to team lead

PHPCodeIgniterMySQLPerfex CRMQuickBooks

Centralized AI integration module

Problem

Multiple business systems needed AI features, but there was no centralized way to manage token usage, cost tracking, or audit activity.

Solution

Designed and implemented a centralized AI module so multiple products could use LLM features while tracking tokens, cost, and user actions in one place.

Result

The business gained reusable AI capabilities with clearer monitoring, better optimization, and stronger internal auditing.

Role

System design and full-stack implementation

Node.jsLLM IntegrationAPI DesignAI Monitoring

Skills

Skills grouped by the systems I work with most.

The stack covers frontend, backend, databases, CMS platforms, performance work, and delivery tools.

Frontend

React.jsNext.jsJavaScript (ES6+)HTML5CSS3BootstrapTailwind CSSshadcn/ui

Backend

Node.jsExpress.jsPHPLaravelCodeIgniter 4REST APIs

Database

MySQLPostgreSQLDatabase designQuery optimization

AI & Automation

RAG systemsAI voice agentsLLM integrationPrompt engineeringLangChainPython automationSelenium

Tools & Integrations

GitAPI integrationWebhooksQuickBooks integrationMS Teams APIMicrosoft Outlook API

Platforms & Performance

Perfex CRMWooCommerceTechnical SEOPage speed optimizationClean architecture

Experience

Professional experience presented in a simple, resume-friendly format.

The focus here is on role, scope, technical direction, and practical achievements.

Full-Stack Software Engineer → Team Lead

Prizm Energy for Electromechanical Cont. L.L.C, Dubai, United Arab Emirates

05/2023 - 04/2026 · Remote
  • Developed and customized enterprise modules for Perfex CRM, including budgeting, resource allocation, manpower deployment, cash flow, LLM integration, QuickBooks integration, and API management.
  • Designed and implemented a centralized AI integration module with token usage, cost tracking, and user activity auditing for optimization and governance.
  • Built scalable backend systems and APIs using PHP (CodeIgniter), Node.js, and MySQL for internal business workflows and modular CRM customization.
  • Created Python and Selenium automation scripts to scrape tender data from UAE websites and built a Microsoft Outlook extension to insert structured email data into internal systems.

Software Engineer

Madiotic, Islamabad, Pakistan

03/2022 - 01/2024 · On Site
  • Built modern web applications using React.js, Next.js, Node.js, and Express.js for real business and product requirements.
  • Handled third-party service integrations and delivered clean frontend experiences with production-ready backend support.
  • Worked on active products such as movie booking and AI-focused SaaS experiences.

Software Engineering Internee

BeeTechnica, Abbottabad, Pakistan

07/2018 - 08/2019
  • Worked with React.js and Next.js on real-world product features during internship projects.
  • Learned production-oriented frontend patterns and how to write cleaner, more maintainable code.
  • Built early hands-on experience with team workflows and practical software engineering delivery.

Contact

Let’s make it easy to get in touch.

If you need help with a website, dashboard, backend feature, eCommerce build, or SEO-focused improvement, choose the contact option that works best for you.

Primary contact

smjcodes@gmail.com

Send a short message about your project, product, or improvement idea and I’ll get back to you with the next steps.

LocationIslamabad, Pakistan
Response timeUsually replies within 24 hours

Email

smjcodes@gmail.com

Best for project inquiries, freelance work, and detailed discussions.

WhatsApp

+92 340 5051520

Useful for a faster conversation or a quick project intro.

LinkedIn

linkedin.com/in/dspjunaid

Connect professionally and review work history or network details.

Location

Islamabad, Pakistan

Available for remote work and collaboration with international teams.