Hamza Hussain

Full-Stack AI Developer | Building Agentic Workflows & High-Impact RAG Systems

Based in: Lahore, PakistanMost recently: Full-Stack AI Developer, OcttoppusExperience: 3 years

Full-Stack Developer specializing in AI automation and RAG optimization. At Octtoppus, I engineered an IELTS-style grading portal using LangGraph self-correction loops and dropped query latencies from hours to seconds. Proven track record of operational impact, including a 70% reduction in processing time for legacy system migrations. Passionate about RAG, agentic workflows, and scalable backend architecture.

Experience

Full-Stack AI Developer

OcttoppusworkSep 2024 – Jul 2026

Summary

HRMind RAG Assistant: Developed a document-grounded AI assistant answering policy queries in natural language, dropping response latencies from hours down to seconds. Automated Grading Portal: Built an IELTS or PTE style language testing portal using DeepSeek and LangGraph self-correction loops to provide instant, structured evaluation reports. RAG Optimization: Tuned retrieval performance with hybrid semantic keyword search and smart chunking, significantly dropping latency during active client proof of concepts. Team and Enterprise Delivery: Directed task scoping and code reviews for a regional real estate platform while building robust RBAC and payroll features for an educational multi-region CRM.

Results

Developed a real-time push notification system using NestJS and Socket.IO for the HRM platform, eliminating manual follow-ups and speeding up internal communication.
Eliminated manual follow-ups for the HR team through real-time notification triggers.
Dropped response latencies from hours down to seconds for HR policy queries.
Significantly dropped latency during active client proof of concepts through RAG optimization.

RAGDeepSeekLangGraphHybrid SearchRBACCRMNestJSSocket.IO

Full-Stack Developer

A&N TradingworkOct 2023 – Sep 2024

Summary

Legacy Overhaul: Architected a custom Next.js and PostgreSQL platform replacing a legacy Access tool, reducing manual operational processing time by roughly 70%. Automation Modules: Rolled out digital attendance, inventory spending patterns, and scrap vendor management modules, eliminating paper tracking and scattered spreadsheets. Live Dashboards: Designed real-time gate pass approval flows and financial analytics interfaces, bringing turnaround times down to minutes and giving executives same-day cash flow clarity. Data Migration: Executed complete extraction and migration from Access to a normalized PostgreSQL instance with comprehensive audit trail schemas and zero data loss.

Results

Reduced manual operational processing time by roughly 70%.
Eliminated paper tracking and scattered spreadsheets.
Brought turnaround times down to minutes for gate pass approvals.
Achieved zero data loss during migration from Access to PostgreSQL.

Next.jsPostgreSQLMicrosoft Access

Software Development Intern

Webstack AcademyworkAug 2023 – Oct 2023

Summary

Collaborated asynchronously with cross-border engineering teams to deliver a full-stack food delivery application using Next.js, Redux, Node.js, and MongoDB. Designed and integrated core REST API paths for secure order routing and user token validation.

Results

Designed and integrated core REST API paths for secure order routing and user token validation for a pilot group of 20 users.
Handled secure order routing for a pilot group of 20 users.

Next.jsReduxNode.jsMongoDBREST API

Skills

Technical

Next.js

PostgreSQL

FastAPI

HTML5/CSS3

RESTful APIs

Tailwind CSS

React.js

RAG Pipelines

Node.js

Schema Normalization

LangChain

LangGraph

pgvector

Hybrid Search

Agentic Workflows

Express

Python

Redux

TypeScript

MongoDB

Redis

Socket.IO

NestJS

Groq

Supabase

Apollo

GraphQL

DeepSeek

Firebase

Education

BSc in Computer Science

University of LahoreComputer ScienceGPA 3.852020 – 2024

What drives the work

Motivations: Full-Stack Development
RAG Systems
Agentic Workflows
Backend Architecture
Next.js Framework
API Design
Real-Time Dashboards
Early-Stage Startups
Automation Tools
EdTech

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Hamza's twin is AI, it can make mistakes.

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