Waqar Iqbal | AI & Backend Engineer

01Section 01 / 06Selected work

Selected Projects

AI products I'm proudest of, plus desktop apps built for real clients. Every demo below is live.

justice-ai · chat10,000+ judgments indexed

RewriteHybrid searchRe-rankVerify

Supreme CourtLahore HCIslamabad HC

Ask a follow-up question…↑

FeaturedLegal research assistant · Final year project

Justice AI

Ask a legal question in plain English or Urdu and get a citation-backed answer drawn from real Supreme Court and High Court judgments and Pakistani statutes. It never invents a case.

Agentic RAG in LangGraph: rewrites follow-ups, runs hybrid dense + BM25 search, re-ranks and checks grounding
Covers the Supreme Court, Islamabad and Lahore High Courts plus federal and Punjab laws
Streaming answers, document analysis, case diary and hearing reminders by email and WhatsApp

LangGraph
Qdrant
Voyage AI
Groq
FastAPI
React

✦

Router →CSVAgentPostgresAgentMongoAgent

AgentsData intelligence

Nexus AI

Ask questions of CSV files, PostgreSQL or MongoDB in plain English. A router picks the right agent, which inspects the schema, writes and self-corrects the query, and charts the answer.

LangGraph
FastAPI
React
PostgreSQL
MongoDB
Plotly

View code

Gmail✦ GeminiSheets

CandidateFitVerdict

Ayesha K.Strong

Hamza R.Maybe

Sara M.Strong

✓3 resumes screened · logged to Sheets

n8nHiring automation

Recruiter AI Agent

An n8n workflow that picks up resumes from Gmail, compares each one to the job description with Gemini, and logs a scored report to Google Sheets.

n8n
Gemini
Gmail
Drive
Sheets

View code

Inbound call00:00 LIVE

✓ Technician booked · Tue 10:00 AM

VoicePhone agent

AppliFix

A voice agent that answers service calls, troubleshoots six appliance types and books a technician by ZIP code and specialty.

VAPI
Twilio
Deepgram
Groq
PostgreSQL

View code

FinanceHREngineeringC-Level

Q3 budget.xlsxPayroll.csvAPI spec.md Invoices.pdfPolicies.mdRunbook.md

RAGEnterprise assistant

FinGuard

A company assistant with six roles, where each department only retrieves the documents it's allowed to see.

LangGraph
ChromaDB
Groq
FastAPI
JWT

View code

Client work · Desktop

Desktop applications for clients

Installable Windows apps that run real businesses day to day: sales, stock, ledgers and receipts.

Zero Cross · Business Management Systemsample data

Today's salesRs 48,250

Orders37

ReceivableRs 1.2L

ProductStockStatus

Oud Royale 100ml64In stock

Amber Noir 50ml8Low

Citrus Bloom 100ml41In stock

CustomerBalanceLast

Ahmed TradersRs 24,000Paid 5k

City PerfumesRs 11,500New sale

Bilal StoreRs 0Settled

PartnerOn consignmentSold

Mall Kiosk120 pcs86

Online Reseller60 pcs51

Monthly sales report.pdf Inventory.xlsx Khata statement.pdf

✓ Report exported

ClientZero Cross · perfume brand

Zero Cross Management System

A full business desktop app: products and inventory, sales and payments, a customer khata ledger, consignment partners, expenses, user roles, and PDF and Excel reports.

Python
CustomTkinter
Supabase
ReportLab
Matplotlib
PyInstaller

Rehan Dairy — POS Managersample data

Current order

TotalRs 0

Cash · Print receipt

REHAN DAIRYThank you!

ClientRehan Dairy · retail shop

Rehan Dairy POS

A point-of-sale desktop app for a dairy shop: fast billing, products and categories, customer accounts, cash sessions, thermal receipt printing and database backups, shipped as a Windows installer.

PyQt6
PostgreSQL
SQLAlchemy
ESC/POS
bcrypt
PyInstaller

Want to see more? Browse 30+ repositories on GitHub.All repositories

02Section 02 / 06What I do

I build AI systems
that actually ship.

From a retrieval pipeline to a phone agent to an automated workflow, built on clean Python and FastAPI.

01

RAG & Semantic Search

Document ingestion with OCR, embeddings and vector search. Answers stay grounded in your own sources.

QdrantPineconeWeaviateChromaDB

02

Multi-Agent AI

LangGraph and LangChain agents that plan, call tools and hand work to each other.

LangGraphLangChainTool calling

03

Voice AI Agents

Phone assistants with speech-to-text, text-to-speech and booking flows.

VAPITwilioDeepgram

04

AI Automation n8n

Workflows with an AI step in the middle: triage emails, enrich leads, draft replies and update sheets or CRMs automatically.

n8nWebhooksGoogle SheetsGmail

05

Backend & REST APIs

FastAPI services on PostgreSQL or MySQL, with clean data models and Docker builds ready to deploy.

FastAPIPostgreSQLDocker

Portrait of Waqar Iqbal — **Waqar Iqbal**AI & Backend Engineer

03Section 03 / 06About

About Me

I'm Waqar, an AI and backend engineer who turns large language models and automations into reliable products.

I build backend services and REST APIs, retrieval-augmented generation, multi-agent systems, voice AI and n8n workflows with Python and FastAPI. I care about the parts that make AI usable in production: clean data models, accurate retrieval, well-tested prompts and workflows that keep running when nobody is watching.

Let's talk LinkedIn GitHub

1+Year of experienceBuilding AI backends and automations

BS Computer ScienceCOMSATS University Islamabad

AI/Backend InternEraviya Solutions

PakistanRemote or onsite

Experience & education

Where I have worked and studied.

ExperienceJun 2025 – Aug 2025

AI/Backend Intern

Eraviya SolutionsOnsite

Built AI-powered backend applications and REST APIs with Python, FastAPI, LLMs and RAG.
Worked on PostgreSQL data models and AI retrieval workflows for production applications.
Improved LLM answer accuracy with prompt engineering and retrieval techniques.

PythonFastAPIRAGPostgreSQLPrompting

Education2023 – 2027

BS Computer Science

COMSATS University IslamabadSahiwal Campus

Currently in 8th semester, focused on artificial intelligence and backend systems.
Final year project: Justice AI, an agentic RAG legal research assistant for Pakistan.

AIBackendDatabases8th semester