Abdul is available for hire

Abdul Haseeb

Verified Expert in Engineering

Full-stack Engineer and Developer

Islamabad, Islamabad Capital Territory, Pakistan

Toptal member since May 1, 2026

Expertise

Full-stack Web Development Front End Software Development Data Visualization Dashboard Back-end Developers LLM Serverless AJAX SaaS

Bio

Abdul is a senior full-stack engineer with 5+ years of experience building scalable cloud systems, high-performance web applications, and data platforms that deliver real results. He operates across the full stack, from back-end architecture to front-end development and analytics pipelines, always with a sharp focus on performance and cost efficiency. Now expanding into ML and AI engineering, Abdul brings hands-on expertise in LLMs and intelligent automation to help teams build smarter.

Portfolio

Texinity Technologies

Agile Software Development, Google Cloud Platform (GCP), Python, Apache Beam...

Freelance Clients

JavaScript, TypeScript, MERN Stack, Next.js, NestJS, Python, Firebase, Supabase...

NESL

JavaScript, TypeScript, React, Next.js, Node.js, Express.js, NestJS, Python...

Experience

Full-stack Development - 5 years
JavaScript - 5 years
Tailwind CSS - 4 years
TypeScript - 4 years
Next.js - 3 years
Amazon Web Services (AWS) - 3 years
PostgreSQL - 3 years
NestJS - 3 years

Preferred Environment

Postman, Docker, Git, Slack, Jira

The most amazing...

...solution I've built is CityPerks, a live smart city platform connecting residents, businesses, and governments through QR rewards and real-time analytics.

Work Experience

Senior Full-stack Engineer

2026 - PRESENT

Texinity Technologies

Designed and delivered multi-tenant data lake pipelines for a large-scale client using Dataflow and Apache Beam, enabling high-volume ingestion and transformation across multiple downstream tenants.
Developed an enterprise-grade analytics platform on GCP leveraging BigQuery and Cloud Workflows, optimizing large-scale data processing and reducing cloud costs by 10% across multi-tenant workloads.
Consolidated numerous Cloud Run jobs into a centralized, scheduled Cloud Workflow for a high-traffic system, orchestrating diverse processes in a single pipeline to streamline operations, improve performance, and reduce operational overhead.
Built automated testing infrastructure for internal AI endpoints by developing dynamic test-generation scripts and maintaining timestamped test records in Cloud Storage, ensuring reliability and scalability for a large, multi-client environment.

Technologies: Agile Software Development, Google Cloud Platform (GCP), Python, Apache Beam, Google Cloud Dataflow, Dataflow Programming, PostgreSQL, AI Integration, BigQuery, Data Lakes, Data Warehousing, Claude, Cloud Infrastructure, Cursor AI, GitHub, Gemini, Claude Code, Jira, Amazon S3 (AWS S3), Performance Optimization, Web Development, Data Analytics, Code Auditing, REST API Architecture, Back-end, Back-end Performance, AI-generated Code, AI Programming, Data Aggregation, Cloud Networking, Support & Maintenance, CI/CD Pipelines, ChatGPT, Claude API, Data Engineering, GitHub Actions, Audits, Auditing, API Integration, Storage, Auth, AI Tools, UI Design, Workflow, Front-end, Deployment, Linux, Accessibility, Zod, Jest, React Testing Library, Web, Serverless, PWA, OAuth, System Architecture, Prisma, API Development, Compliance, Single Sign-on (SSO), JavaScript, TypeScript, React, Integration, Modular, Table Plus, Figma, Google Chrome, Software Development, Front-end Development, Agentic Coding, RESTFul APIs, Lovable, DB, Web Application Security (Web AppSec), REST, Strategy, System Improvements, Third-party Integration, Venture Capital, Software as a Service (SaaS), React Components, Software Design, AI-assisted Development, Data Pipelines, Relational Databases, REST APIs, Documentation, Security, Prompt Engineering, Design Systems, Front-end Architecture, Microfrontends, Multi-agent Systems, User Flows, Workflows, Snowflake, OpenAPI, Swagger, Startups, Web App Design, Authentication, Cloud Deployment, DevOps, JSON Web Tokens (JWT), Real-time Systems

Full-stack Engineer

2022 - PRESENT

Freelance Clients

Designed and maintained a fully-featured influencer marketing platform, owning the entire stack, front end, back end, AWS infrastructure, CI/CD pipelines, and role-based access control.
Built a real-time concert request application supporting live song submissions, an admin dashboard, and a large display system, engineered for high concurrency using Next.js.
Implemented secure token lifecycle management for TikTok, YouTube, and Instagram APIs, including automated refresh mechanisms to ensure uninterrupted 3rd-party integrations.
Developed a contract-based collaboration platform modeled after online freelance agencies, enabling structured, enforceable agreements between clients and service providers.
Delivered AI-powered automation solutions across multiple client engagements, helping businesses eliminate bottlenecks and measurably improve operational efficiency.

Technologies: JavaScript, TypeScript, MERN Stack, Next.js, NestJS, Python, Firebase, Supabase, Tailwind CSS, PostgreSQL, MongoDB, Amazon Web Services (AWS), Google Cloud Platform (GCP), Data Visualization, Full-stack, MySQL, User Experience (UX), Dashboards, REST APIs, Role-based Access Control (RBAC), Vercel, HTML, CSS, Back-end Architecture, AI Integration, Back-end Development, Databases, Scalability, Continuous Delivery (CD), Continuous Integration (CI), Technical Documentation, Redis, Git, AI Agents, HTML5, SQL, AI Automation, Claude, Cloud Infrastructure, Cursor AI, GitHub, Gemini, Microservices, Claude Code, Agentic AI, Advertising, Jira, Amazon S3 (AWS S3), Financial Systems, Legacy Software, Performance Optimization, Web Development, Mobile App Development, React Native, Progressive Web Applications (PWAs), Webhooks, REST API Architecture, Row-level Security (RLS), Back-end, Back-end Performance, AI-generated Code, Automation, n8n, Workflow Automation, Workflow Automation & System Integration, AI Programming, Data Aggregation, Google Maps, Mapbox, Product Owner, Facebook API, Instagram, B2C, GIS, Recommendation Systems, Cloud Networking, Support & Maintenance, CI/CD Pipelines, ChatGPT, Claude API, Cloudflare, Codex, GitHub Actions, Word Embedding, Pgvector, Stripe API, API Integration, Third-party APIs, Storage, Auth, AI Tools, Django, UI Design, Workflow, Front-end, Vibe Coding, D3.js, Deployment, Linux, Accessibility, Lighthouse, BetterAuth, Vite, Zod, Webpack, Web, Serverless, PWA, OAuth, Webflow, System Architecture, Prisma, API Development, Auth0, Single Sign-on (SSO), Gemini API, Payment APIs, React, Integration, Modular, Slack, Table Plus, Postman, Figma, Google Chrome, Software Development, Front-end Development, Agentic Coding, RESTFul APIs, Supabase Auth, Mobile, Asset Management, Railway, Lovable, DB, Web Application Security (Web AppSec), REST, Product Ownership, Strategy, System Improvements, Third-party Integration, Software as a Service (SaaS), Stripe Subscriptions, React Components, Software Design, AI-assisted Development, Relational Databases, Documentation, Security, Prompt Engineering, Design Systems, Front-end Architecture, Microfrontends, Multi-agent Systems, User Flows, OpenAPI, Swagger, Startups, Stripe, Google Maps API, Maps, Leaflet, Scraping, Web App Design, Mobile Apps, Authentication, Cloud Deployment, DevOps, JSON Web Tokens (JWT), Real-time Systems, WebSockets

Full-stack Engineer

2023 - 2026

NESL

Led a team of engineers to build a community-driven platform from scratch to full deployment, owning architecture decisions and working closely with stakeholders to deliver using modern technologies.
Shipped modern web applications with real-time and AI-powered features, boosting user engagement and system performance through agent-based workflows and optimized data processing.
Engineered a generative CAD system driven by AI, drastically reducing manual design effort and accelerating end-to-end production workflows.
Oversaw full lifecycle delivery of cloud-native applications—spanning back end, front end, infrastructure, and CI/CD—slashing deployment time by 45%.

Technologies: JavaScript, TypeScript, React, Next.js, Node.js, Express.js, NestJS, Python, FastAPI, RAG Pipelines, Apache Beam Framework, Amazon Web Services (AWS), Google Cloud Platform (GCP), Docker, PostgreSQL, Firebase, Supabase, Stripe, Charts, Data Visualization, Full-stack, Architecture, Twilio, APIs, Artificial Intelligence (AI), Software Architecture, MySQL, User Interface (UI), Dashboards, REST APIs, Role-based Access Control (RBAC), Vercel, HTML, CSS, Back-end Architecture, AI Integration, Back-end Development, Databases, Large Language Models (LLMs), Scalability, Education Technology (Edtech), Continuous Delivery (CD), Continuous Integration (CI), Technical Documentation, Redis, Git, AI Agents, HTML5, SQL, Cloud Infrastructure, GitHub, Microservices, Technical Leadership, Agentic AI, Jira, Amazon S3 (AWS S3), Legacy Software, Performance Optimization, QR Codes, Web Development, Mobile App Development, React Native, Bitbucket, Code Auditing, Code Review, Progressive Web Applications (PWAs), Webhooks, REST API Architecture, Row-level Security (RLS), Back-end, Back-end Performance, AI-generated Code, Elasticsearch, Algolia, AI Programming, Data Aggregation, Google Maps, Product Owner, B2C, Location Services, GPS, Cloud Networking, Networking, Support & Maintenance, CI/CD Pipelines, ChatGPT, Claude API, Cloudflare, GitHub Actions, Stripe API, Audits, Auditing, API Integration, Third-party APIs, Storage, Auth, UI Design, Workflow, Front-end, Vibe Coding, D3.js, Deployment, Linux, eCommerce, Accessibility, Lighthouse, BetterAuth, Vite, Zod, Cypress, Jest, React Testing Library, Webpack, GraphQL, Web, Serverless, PWA, OAuth, Google Analytics, Webflow, Notion API, System Architecture, Prisma, tRPC, API Development, Auth0, Gemini API, Payment APIs, Integration, Modular, Slack, NoSQL, Table Plus, Postman, Figma, Google Chrome, Software Development, Ajax, Contentful, Front-end Development, Zoho CRM, Internet of Things (IoT), RESTFul APIs, Mobile, Inventory, Reporting, DB, Web Application Security (Web AppSec), REST, Product Ownership, Product Strategy, Strategy, System Improvements, Third-party Integration, Software as a Service (SaaS), Stripe Subscriptions, React Components, Software Design, AI-assisted Development, Data Pipelines, Relational Databases, Documentation, Security, Prompt Engineering, Design Systems, Front-end Architecture, Multi-agent Systems, User Flows, Windsurf, Snowflake, OpenAPI, Swagger, Google Maps API, Maps, Leaflet, Web App Design, Mobile Apps, Authentication, Cloud Deployment, GraphQL API, DevOps, JSON Web Tokens (JWT), Real-time Systems, WebSockets

Full-stack Engineer

2022 - 2023

Bloom

Architected and delivered end-to-end applications using React, Next.js, and Node.js, consistently hitting deadlines while maintaining high performance standards across the full stack.
Designed and deployed an automated booking platform that streamlined scheduling workflows end to end, cutting manual effort by 40%.
Integrated full Stripe payment systems across multiple projects, improving transaction reliability and enabling scalable, production-ready payment processing.
Engineered a mobile-responsive management and calculation application for a trucking business, reducing reporting time by 30% and measurably improving day-to-day operational efficiency.

Technologies: PHP, Laravel, React, Node.js, Express.js, MongoDB, Firebase, Stripe, Full-stack, Dashboards, REST APIs, HTML, CSS, Back-end Development, Databases, JavaScript, Git, HTML5, SQL, GitHub, Web Development, REST API Architecture, Back-end, Google Maps, B2C, Support & Maintenance, CI/CD Pipelines, Stripe API, API Integration, Third-party APIs, Storage, Auth, UI Design, Front-end, D3.js, Deployment, Accessibility, Zod, Web, PWA, OAuth, System Architecture, Prisma, API Development, TypeScript, Integration, Modular, NoSQL, Table Plus, Postman, Figma, Google Chrome, Software Development, Ajax, Front-end Development, Internet of Things (IoT), RESTFul APIs, DB, REST, Strategy, Third-party Integration, React Components, Software Design, Relational Databases, Documentation, Security, Design Systems, Front-end Architecture, User Flows, Swagger, Google Maps API, Maps, Web App Design, Cloud Deployment, JSON Web Tokens (JWT), WebSockets

Experience

Quizzio AI Application

https://www.abhaseeb.com/project/quizzio

An AI application that allows users to upload PDFs and extract knowledge using RAG. Built with Next.js and FastAPI, Quizzio converts documents into embeddings with OpenAI and FAISS and extends them into interactive quizzes and downloadable assessments.

CityPerks Platform

https://www.cityperks.ai/

A smart city platform connecting residents, local businesses, and governments. Users can redeem offers via QR codes, earn rewards, and get real-time alerts. Merchants and cities create promotions and share updates, while GHL and AudienceLab integrations provide analytics to boost engagement and local commerce.

Influindex Influencer Marketing Platform

https://influindex.com/

An advanced influencer marketing platform designed to help brands discover influencers and monitor their social media performance. It provides detailed metrics from Instagram, YouTube, and TikTok, giving brands insights into engagement, reach, and audience demographics. Influindex enables data-driven campaign decisions, helping brands optimize strategies and build long-term influencer relationships.

DocuMind AI Application

https://www.abhaseeb.com/project/documind-ai

An AI-powered application that allows users to chat with their PDFs and get accurate, context-aware answers. It uses retrieval-augmented generation to extract knowledge from documents and present it through a simple, conversational interface.

CVForge AI Optimization Tool

https://www.abhaseeb.com/project/cvforge-ai

An AI-powered CV optimization tool that tailors resumes to specific job descriptions using large language models and LaTeX precision. It allows users to edit LaTeX directly, preview PDFs in real time, and highlight job-relevant keywords for better ATS compatibility. Designed for developers and professionals, CVForge delivers clean, structured, and production-ready resumes with a streamlined workflow.

Education

2019 - 2023

Bachelor's Degree in Software Engineering

COMSATS University Islamabad (CUI) - Islamabad, Pakistan

Certifications

AUGUST 2020 - PRESENT

Introduction to HTML5

Coursera

JUNE 2020 - PRESENT

Java Programming: Solving Problems with Software

Coursera

Skills

Libraries/APIs

React, Node.js, Stripe, Instagram API, TikTok API, YouTube API, REST APIs, Google Maps, Facebook API, Claude API, Stripe API, Auth, D3.js, Zod, React Testing Library, API Development, OpenAPI, Google Maps API, Leaflet, GraphQL API

Tools

Postman, Prisma, Slack, Jira, Claude, GitHub, Claude Code, Bitbucket, n8n, GIS, ChatGPT, Codex, NGINX, Lighthouse, Sentry, Auth0, Windsurf, Figma, Webpack, Google Analytics, Notion API, LaTeX, Git, Apache Beam, BigQuery

Languages

JavaScript, TypeScript, Python, HTML, CSS, HTML5, SQL, PHP, GraphQL, Snowflake, Java, PHP 8

Frameworks

Next.js, Express.js, NestJS, Tailwind CSS, Jest, tRPC, Swagger, JSON Web Tokens (JWT), React Native, Django, Cypress, Laravel, Laravel 8

Paradigms

Agile Software Development, Role-based Access Control (RBAC), Back-end Architecture, Continuous Delivery (CD), Continuous Integration (CI), Microservices, REST API Architecture, Automation, B2C, UI Design, REST, Web App Design, Real-time Systems, Microfrontends, DevOps, Dataflow Programming

Platforms

Google Chrome, Firebase, Vercel, Mapbox, Linux, Web, Mobile, Docker, Amazon Web Services (AWS), Google Cloud Platform (GCP), Twilio, Webflow, Contentful, Zoho CRM, Algolia

Storage

PostgreSQL, NoSQL, Databases, Amazon S3 (AWS S3), DB, Data Pipelines, Relational Databases, Cloud Deployment, MongoDB, MySQL, Redis, Data Lakes, Elasticsearch

Other

Table Plus, Software Engineering, Full-stack Development, FastAPI, Supabase, MERN Stack, OpenAI, Vector Databases, SaaS, Minimum Viable Product (MVP), Digital Platform Development, Dashboard Design, Charts, Data Visualization, Full-stack, Architecture, APIs, Artificial Intelligence (AI), Software Architecture, Dashboards, AI Integration, Back-end Development, Large Language Models (LLMs), Scalability, Technical Documentation, Cloud Infrastructure, Cursor AI, Gemini, Technical Leadership, Advertising, Legacy Software, Performance Optimization, QR Codes, Web Development, Data Analytics, Code Auditing, Code Review, Progressive Web Applications (PWAs), Webhooks, Row-level Security (RLS), Back-end, Back-end Performance, AI-generated Code, Workflow Automation, Workflow Automation & System Integration, AI Programming, Data Aggregation, Product Owner, Instagram, Location Services, GPS, Recommendation Systems, Cloud Networking, Support & Maintenance, CI/CD Pipelines, Cloudflare, Data Engineering, GitHub Actions, Audits, Auditing, API Integration, Third-party APIs, Storage, AI Tools, Workflow, Front-end, Vibe Coding, Deployment, eCommerce, Accessibility, BetterAuth, Vite, Serverless, PWA, OAuth, System Architecture, Single Sign-on (SSO), Gemini API, Marketplaces, Payment APIs, Integration, Modular, Software Development, Ajax, Front-end Development, Agentic Coding, RESTFul APIs, Supabase Auth, Inventory, Reporting, Asset Management, Lovable, Web Application Security (Web AppSec), Product Ownership, Product Strategy, System Improvements, Third-party Integration, Software as a Service (SaaS), Stripe Subscriptions, React Components, Software Design, AI-assisted Development, Design Systems, Front-end Architecture, User Flows, Startups, Authentication, WebSockets, Apache Beam Framework, LangChain, User Experience (UX), User Interface (UI), Education Technology (Edtech), AI Agents, AI Automation, Agentic AI, Financial Systems, Mobile App Development, Networking, Word Embedding, Pgvector, Compliance, Internet of Things (IoT), Railway, Strategy, Venture Capital, Documentation, Security, Prompt Engineering, Multi-agent Systems, Workflows, Maps, Mobile Apps, RAG Pipelines, FAISS, RAG Systems, Problem Solving, Google Cloud Dataflow, Data Warehousing, Scraping

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