Rabia Abid
Full Stack Web Developer
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Portfolio
Work experience
Freelancing Career
4 mos
Business Nexus
May 2026 - Present • 2 mos
Client: DevelopersHub Corporation Project Overview: Business Nexus Business Nexus is an enterprise-grade, real-time collaboration platform engineered to bridge the communication gap between investors and entrepreneurs. Designed with a strict security-first approach, the system facilitates confidential networking, role-specific data management, and legally verifiable interactions within a single, highly optimized ecosystem. Technical Architecture & My Contribution I architected and deployed the complete server-side infrastructure and backend APIs, ensuring seamless data flow by integrating them with a modern React.js frontend repository. The engineering focus was on minimizing real-time network latency while enforcing strict cryptographic standards for all database transactions and live communications. Core Features & Engineering Solutions End-to-End Encrypted Communication: Engineered a secure messaging module where all private communications are encrypted at rest using the AES-256 algorithm via the Node.js crypto module. This guarantees absolute data privacy for sensitive investor pitches and financial discussions. Real-Time Socket Infrastructure: Implemented a low-latency WebSockets architecture utilizing Socket.io. This powers instant system alerts, live messaging, and dynamic UI updates, eliminating the need for resource-heavy HTTP polling. Role-Based Access Control (RBAC): Developed specialized routing logic and relational database schemas to serve distinct, role-specific dashboards, ensuring investors and entrepreneurs only access authorized data modules. E-Signature Document Chamber: Integrated a digital signing module, allowing users to draw, save, and verify legally binding signatures directly within the platform. Responsive UI: Optimized dashboard interfaces with consistent design principles. Meeting Scheduling :Comprehensive engine for requesting and confirming pitch meetings.
Full-Stack E-Commerce Platform
Apr 2026 - Jun 2026 • 2 mos
Project Overview: Full-Stack E-Commerce Platform A high-performance, fully responsive e-commerce web application engineered from the ground up during my professional internship. The project involved transforming static Figma UI/UX wireframes into a dynamic, pixel-perfect frontend, powered by a custom-built, highly optimized backend REST API to handle product catalogs, user authentication, and state management. Core Features & Engineering Solutions Pixel-Perfect UI/UX Translation: Meticulously converted high-fidelity Figma mockups into a responsive, accessible React.js frontend. Ensured strict adherence to the original design system, maintaining visual consistency across all breakpoints and devices. High-Performance REST APIs: Engineered a lightning-fast backend using FastAPI. Designed robust endpoints for product retrieval, user registration, and cart management, optimizing JSON serialization and request handling for sub-millisecond response times. Database Optimization & Connection Pooling: Architected a relational database schema using SQLAlchemy as the ORM. Implemented connection pooling to efficiently manage database connections, preventing bottlenecks during simulated high-traffic browsing and checkout events. Complex State Management: Built sophisticated frontend logic to handle dynamic cart calculations, real-time inventory updates, and secure user session management without causing unnecessary DOM re-renders. Secure User Authentication: Developed a secure login and registration flow with encrypted password hashing and stateless session handling to protect customer data.
TrackMate-Smart Campus Lost & Found System
Self Employed • Self-employed
Oct 2025 - Jan 2026 • 3 mos
Project Overview: TrackMate TrackMate is an AI-driven, high-security asset recovery platform engineered to digitize and secure the lost-and-found workflow within a closed campus environment. It eliminates the inefficiencies of manual reporting and tackles fraudulent claims head-on by leveraging Natural Language Processing (NLP), strict cryptographic verification, and algorithmic user accountability. Core Features & Engineering Solutions Algorithmic Semantic Matching: Integrated the MiniLM-L6-v2 NLP model to generate text embeddings. The backend calculates cosine similarity scores between lost and found item descriptions, automatically triggering intelligent matching algorithms even if users describe the exact same item using entirely different vocabulary. Zero-Trust Claim Verification: Engineered a secure SMTP-based OTP protocol to neutralize fraudulent claims. The system programmatically masks highly sensitive database fields (such as serial numbers or specific identifying marks) and enforces physical handover authentication via dynamic, time-sensitive email codes. Algorithmic Risk Management (Trust Score): Designed robust backend state-management logic to enforce user accountability. The database automatically executes state changes based on transaction outcomes, rewarding verified handovers (+15 points) while algorithmically flagging and suspending accounts (-5 points) that hit a threshold of 3 rejected claims. Domain-Restricted Access Control: Implemented Google OAuth 2.0 with a custom domain validation filter at the API level. The system strictly drops any authentication payload not originating from the authorized @uog.edu.pk campus domain, maintaining a closed-loop security perimeter. Centralized Admin Infrastructure: Developed a privileged, role-based admin dashboard allowing full database observability, flagged user audits, and immediate programmatic account terminations.