Freelance Data Engineers in PunjabFreelance Data Engineers in Punjab
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Arham Malik's avatar
Arham Malik
Rawalpindi, Pakistan
Backend & AI engineer who ships systems fast and scale.
New to Contra
Backend & AI engineer who ships systems fast and scale.
Cover image for Imagine having over 100 different
Imagine having over 100 different data sources all over the place. That was the problem Apex Analytics solved. I built this big data platform on Google Cloud using BigQuery and ETL pipelines that clean, transform, and unify everything. The frontend is React based, so stakeholders can see real time KPIs without waiting forever. Queries come back in under a second even with millions of records. It felt like solving a giant puzzle, but the result was a super reliable analytics hub that the entire company trusted. For more details, please visit: https://arham-nexus.vercel.app/work/apexanalytics
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Cover image for This is a classic enterprise
This is a classic enterprise academic portal, but built solid. It uses  Web Forms, ASP.NET, C#, and SQL Server. The main challenge was role based access control because you have admins, faculty, TAs, and lab demonstrators all needing different permissions. I designed a three tier architecture with stored procedures and optimistic concurrency control so data doesn’t get messed up when people edit at the same time. Over 200 users per semester use it for task assignments and progress tracking. It’s not flashy, but it works perfectly. For more details, please visit: https://arham-nexus.vercel.app/work/talabportal
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Cover image for Skill Swap is a peer
Skill Swap is a peer to peer learning platform where you can be both a student and a teacher. I built the backend with Java Spring Boot, real time chat with WebSockets, and video calls with WebRTC. The matching algorithm finds people based on skills, ratings, and availability. You can switch roles anytime. It also has a trust based review system so fake reviews don’t ruin it. This was an MVP, but it proved that real time learning communities can work really well. For more details, please visit: https://arham-nexus.vercel.app/work/skillswap
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Cover image for This is a native Android
This is a native Android app I built with Kotlin and Firebase. It connects tourists with verified local guides in real time. You open the app, see nearby guides, book a tour, and then you can track each other’s location live using Google Maps. I also added offline support because travel doesn’t always have perfect internet. Over 100 active users ended up using it,during the MVP. The best part? Battery usage was optimized so your phone doesn’t die halfway through the day. Really proud of how smooth it turned out. For more details, please visit: https://arham-nexus.vercel.app/work/raaheraast
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Data Engineer(1)
Umaima Iqbal's avatar
Umaima Iqbal
Lahore, Pakistan
I build offline AI tools that make documents talk.
New to Contra
I build offline AI tools that make documents talk.
Cover image for AuraExtract — Intelligent Invoice &
AuraExtract — Intelligent Invoice & Receipt Data Extractor The extraction engine uses intelligent regex pattern matching that handles real-world invoice layouts — column-per-line PDF formats, inline tabular formats, and plain text documents. It detects 10 fields automatically and parses up to 20 line items per invoice. Supports PDF, TXT, and DOCX formats. Includes a raw text preview panel so users can verify exactly what the engine is reading. CSV export includes both the summary fields and full line items table — ready to open directly in Excel. Pure Python. Zero external dependencies beyond pypdf for PDF reading.
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Cover image for AuraSort scans any folder and
AuraSort scans any folder and automatically sorts files into named subfolders by type — Documents, Images, Videos, Audio, Code, Archives, and more. Files are renamed to clean, consistent lowercase format. Every operation is logged live on screen as it happens. Built with a Dry Run mode so users can preview exactly what will move before anything is touched. Full undo restores every file to its original location with one click. An HTML report is generated after each sort showing every file moved, every category created, and total time taken. Pure Python. Zero external libraries. Works on any machine without installation.
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Cover image for A fully offline document summarizer
A fully offline document summarizer built in pure Python. Uses TF-IDF scoring, position weighting, and Jaccard deduplication to extract the most important sentences from any PDF, DOCX, or TXT file — each labeled with a relevance percentage. The result looks like this: [1] [100% relevance] The algorithm achieved 94% accuracy on benchmark tests. [2] [81% relevance] Training was performed on 50,000 labeled samples. [3] [67% relevance] Results were validated using 5-fold cross validation. Supports PDF, Word, and TXT files. Saves summaries to your computer. Runs completely offline. No subscriptions, no API keys, no internet required.
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Cover image for Built AuraChat v3.0 — a
Built AuraChat v3.0 — a fully offline Document Intelligence desktop app in pure Python. Users upload any PDF, Word, or TXT file and ask questions in plain English. The system returns cited answers with confidence scores instantly. Technical highlights: — Custom NLP engine using TF-IDF scoring + hybrid token overlap analysis — 1,700× faster indexing than baseline on 500-page documents — Multi-threaded processing — UI never freezes during heavy indexing — Supports PDF, DOCX, and TXT file formats — Zero external APIs — runs completely offline on the user's machine — 23 production-grade bugs identified and resolved before delivery This is not a demo. This is production-ready software built with clean architecture, full error handling, keyboard shortcuts, chat export, source citations, and confidence indicators
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Data Engineer(1)
Attaul Mohiman's avatar
Attaul Mohiman
Multan, Pakistan
"Full Stack Developer with extensive experience "
"Full Stack Developer with extensive experience "
Cover image for Challenge is a live fitness
Challenge is a live fitness platform that transforms health goals into team-based competitions. It combines gamified daily tasks with robust social networking to drive consistent user engagement. Competitive Logic: Organizers can configure 2 or 4 teams and set custom challenge durations. Point System: Users complete daily tasks and questionnaires. Scores are logged and reset to 0 every 24 hours. At the end of the week, the system calculates totals to crown a winning team. Social Ecosystem: Includes private groups, personal chats, and social feeds. Users can publish articles, create custom challenges, and join global fitness events.
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Cover image for I’m building an automated pipeline
I’m building an automated pipeline for a celebrity news YouTube channel: trending stories are sourced, scripts generated with AI, media collected, voiceovers added, and videos edited—all with Slack review and ready-to-upload drafts. 💡 This project shows how AI and automation can keep content fresh while cutting manual work. 🚀 Curious to see it in action or build your own? Let’s connect!
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Cover image for Taxiee – Smart, Safe &
Taxiee – Smart, Safe & Reliable Ride Booking Taxiee is a modern ride-booking app designed to make everyday travel simple, fast, and dependable. Whether you’re commuting to work, heading to the airport, or booking a ride for someone else, Taxieea connects you with trusted drivers in just a few taps. Key Features Easy ride booking with live driver tracking Multiple ride options to fit your needs and budget Secure payments and clear fare estimates Real-time notifications and trip updates Taxiee is built with reliability and user comfort at its core—combining clean design, fast performance, and smart technology to move you where you need to go, stress-free. Book smarter. Ride safer. Travel better with Taxieea.
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Cover image for Greening is an environmental monitoring
Greening is an environmental monitoring app designed to help users track and analyze the impact of green spaces. The app allows users to post and manage sites, monitor the amount of COâ‚‚ absorbed and Oâ‚‚ produced by trees, and evaluate environmental health over time. Data is visualized through interactive graphs and touch-enabled charts, enabling clear insights and informed decision-making. Greening empowers individuals and organizations to understand, protect, and manage nature using advanced, data-driven tools.
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Data Engineer(1)
Afaq Ahmed's avatar
Afaq Ahmed
Lahore, Pakistan
Full Stack Dev | ASP.NET, Angular, SQL Server
Full Stack Dev | ASP.NET, Angular, SQL Server
Cover image for Digital SME Lending Platform Development
Digital SME Lending Platform Development
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Cover image for Motor Vehicle Registration System (MVRS) Development
Motor Vehicle Registration System (MVRS) Development
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Cover image for Real-Time Vehicle eAuction Platform Development
Real-Time Vehicle eAuction Platform Development
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Data Engineer(1)
Spacebar Technologies's avatar
Spacebar Technologies
Lahore, Pakistan
Low-Code, High Impact: Blazing-Fast, Top-Tier Internal Tools
$10k+
Earned
8x
Hired
5.0
Rating
13
Followers
RETOOL_EXPERT

Agency Partner

Low-Code, High Impact: Blazing-Fast, Top-Tier Internal Tools
Cover image for Instacoach
Instacoach
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Cover image for Digital-Treasury SEO Management Platform
Digital-Treasury SEO Management Platform
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Cover image for Shopify Theme Redesign for Smorgasboard
Shopify Theme Redesign for Smorgasboard
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Cover image for BrainCube Logo
BrainCube Logo
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Data Engineer(1)