Freelancers using Django REST framework in DelhiFreelancers using Django REST framework in Delhi
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Raj Pathak's avatar
Raj Pathak
proGurugram, India
Founding AI Engineer, Agents, Automation, Cloud, Full-Stack
    $1k+
    Earned
    9x
    Hired
    4.7
    Rating
    58
    Followers
Founding AI Engineer, Agents, Automation, Cloud, Full-Stack
Cover image for Custom Integration Workflow Using Make.com
Custom Integration Workflow Using Make.com
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22
Cover image for WooCommerce to Shopify Migration & Custom Shopify Development
WooCommerce to Shopify Migration & Custom Shopify Development
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25
Cover image for Dynamic Survey Reporting & Automation
Dynamic Survey Reporting & Automation
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28
Cover image for InvestorLift to Airtable Scraper (Chrome Extension)
InvestorLift to Airtable Scraper (Chrome Extension)
1
23
Django REST framework(1)
Ritik Goyal's avatar
Ritik Goyal
Delhi, India
Python & Django developer for web apps and APIs
New to Contra
Python & Django developer for web apps and APIs
Cover image for Spent an afternoon this week
Spent an afternoon this week chasing down why a client's order dashboard took around 2.5s to load. Turned out the page was firing 300+ database queries. Classic N+1 problem. Every order in the loop was making its own separate trip to the DB just to grab the customer and product. One line fixed it. select_related() tells Django to pull the related rows in a single JOIN instead of querying them one at a time. 312 queries down to 3. Page load went from 2.4s to 0.08s. The annoying part is this never shows up on small datasets in dev. It only bites you in production once the table grows. So now I always check the query count in Django Debug Toolbar before shipping any list view. What's the worst N+1 you've run into?
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148
Cover image for An enterprise SaaS platform that
An enterprise SaaS platform that lets FMCG companies plan, simulate, and optimize trade promotions. It gave 15+ enterprise clients the ability to model 200+ promotional scenarios monthly, run what-if analysis through a Promotion Calendar Optimizer and Simulator, and forecast the impact of promotions on revenue, volume, and profitability across $50M+ in annual promotional spend. My focus was architecting and building the Python/Django backend that powered the simulation and optimization engine.
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Hit a classic Django trap this week and figured it's worth sharing since so many people are running into it now. I was adding an LLM feature to a Django app. The AI call takes a few seconds, so naturally I made the view async so it doesn't block a worker while waiting. Wrote the async view, called the ORM like I always do, and boom: SynchronousOnlyOperation: You cannot call this from an async context. Turns out Django's ORM can't just be called normally inside async code. The classic sync API isn't safe in an event loop, so Django protects it and throws this error instead. The fix is simpler than most people think. Since Django 4.1 the ORM has async versions of everything, same names with an "a" prefix. So objects.get() becomes await objects.aget(), create() becomes acreate(), save() becomes asave(). For loops over querysets, async for works directly. And for old sync code or third party libraries you can't change, wrap them with sync_to_async(). Why this matters right now: everyone is bolting AI features onto Django apps, and LLM calls are exactly the slow I/O that async is made for. Which means a lot of devs who never touched async Django are suddenly hitting this error for the first time. One honest caveat: transactions still don't fully work in async mode, so if you need atomic blocks, keep that path sync and wrap it. Anyone else made the jump to async views yet, or still happily on WSGI?
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149
Cover image for An AI-driven trading engine that
An AI-driven trading engine that analyzes 200-DMA breakouts and real-time market sentiment to generate long/short recommendations. It scans 1,500+ NSE stocks in under 2 seconds and uses generative AI to build option strategies, delivering event-driven trade signals end-to-end. I built the full Django backend, async APIs, and the signal-generation logic. Accomplishments and responsibilities: Built an AI-driven trading engine analyzing 200-DMA breakouts and market sentiment, generating long/short signals with ~70% directional accuracy — outperforming baseline strategies by 35%; Integrated generative-AI insights for automated option-strategy creation (spreads, straddles, condors), improving Sharpe ratio by 1.6× and cutting manual analysis time by 60%; Developed a Django backend with async APIs scanning 1,500+ NSE stocks in under 2 seconds, achieving 40% lower latency with event-driven alerts.
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94
Django REST framework(2)
Tanya Kemkar's avatar
Tanya Kemkar
Delhi, India
Full Stack Engineer
Full Stack Engineer
Cover image for Bangaluru Home Price Prediction
Bangaluru Home Price Prediction
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12
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Los Angeles Mountains
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8
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Travel Advisor
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10
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Django REST framework(1)
VISHNU GHOSH's avatar
VISHNU GHOSH
Gurugram, India
Full Stack Developer specializing in Python, Django, FastAPI
New to Contra
Full Stack Developer specializing in Python, Django, FastAPI
Cover image for Risk & Case Management System A
Risk & Case Management System A full-stack risk and case management platform designed to manage client cases, field verification, employees, team leads, quality checks, case transfers, reporting, and operational workflows through a centralized admin dashboard. Role- Full Stack Developer
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34
Cover image for Dynamic Community & Cultural Management
Dynamic Community & Cultural Management Website A fully dynamic community platform with an admin panel for managing events, galleries, family trees, resources, members, donations, and website content. Fully Dynamic Admin Panel content, events, gallery, resources and other modules can be managed without changing the code.
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36
Cover image for Algorithmic Trading & Automation Platform A
Algorithmic Trading & Automation Platform A full-stack algorithmic trading platform with strategy management, order and position tracking, portfolio analytics, risk management, broker connectivity, and an admin portal for monitoring trading operations. Role Full Stack Developer
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Cover image for Fintech Payment & Business Management
Fintech Payment & Business Management Platform A full-stack fintech management platform for handling recharge, BBPS, AEPS, DMT, wallet operations, settlements, commissions, KYC, users, roles, API management, audit logs, reports, and transaction workflows. Full Stack Developer
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27
Django REST framework(2)
Gaurav Sagar's avatar
Gaurav Sagar
Gurugram, India
Experienced Software Engineer
Experienced Software Engineer
Cover image for Rest API Development
Rest API Development
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4
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OTA Upgrade Framework
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5
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Web Crawler
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4
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Django REST framework(1)
Rishabh Jain's avatar
Rishabh Jain
Delhi, India
12+ yr Eng leader scaling mobile/web products
12+ yr Eng leader scaling mobile/web products
Cover image for Bijak - AgriTech startup enabling
Bijak - AgriTech startup enabling working capital and discovery for agri supply chain. Series A by Sequoia, Omidiyar and Omnivore Capital. I worked with Bijak on a Build Operate Transfer model. We put together a 14 member team of Product Managers, developers and designers to build an offline-first multilingual Android Native app. Stack: Android Native (Kotlin), Django, DRF, PostgreSQL, AWS Features - Offline first, built to work on low-end devices and small screen sizes.  
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Cover image for WizKids Carnival - Global platform
WizKids Carnival - Global platform for kids to compete in various competitions and activities My team built the product from the ground up. This involved different features such as competition listing, participation flows, dashboards, user profiles, subscription and payments. Development of different modules and payment flows were also done which included User Module, Dashboard, My Competitions; Settings (Profile updates for parent and child); Subscription Plan; Support, Logout, Upload File feature; View Submissions, View Feedback Tech Stack: Django, Postgresql, AWS, Crypto.JS, React.JS
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Cover image for Zeffo - Micro-Investing fintech platform from
Zeffo - Micro-Investing fintech platform from the founder of Stockpile (US) (https://www.stockpile.com/)My team helped develop the product from scratch, setting up best practices for the Android app. The app got featured in the “Apps We Love” selection on the Google Playstore.  Tech Stack: Android Native - Kotlin, Golang
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Cover image for Swiggy  —  What the Falooda Swiggy
Swiggy  —  What the Falooda Swiggy came to me to build a chrome extension for an upcoming campaign aimed at creating consumer awareness and empathy.
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50
Django REST framework(1)
Bharat Sharma's avatar
Bharat Sharma
Delhi, India
Passionate Fullstack Web Developer 💻
Passionate Fullstack Web Developer 💻
Cover image for Car Renting SaaS Platform
Car Renting SaaS Platform
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9
Cover image for Childcare Management Solutions - MyKidReports
Childcare Management Solutions - MyKidReports
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20
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CV-Jury
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39
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Django REST framework(1)