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AKASH VASHISHTHA's avatar
AKASH VASHISHTHA
proDelhi, India
Versatile Fullstack Engineer | Web & Mobile Expert
$50k+
Earned
5x
Hired
5.0
Rating
109
Followers
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Versatile Fullstack Engineer | Web & Mobile Expert
Cover image for Realm - Social Media Platform for Music Producers and Artists
Realm - Social Media Platform for Music Producers and Artists
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125
Cover image for Madklubben Online Reservation Modernization
Madklubben Online Reservation Modernization
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20
Cover image for Bento Station's Commission-Free Delivery Suite
Bento Station's Commission-Free Delivery Suite
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33
Cover image for Billing Crow
Billing Crow
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71
Software Engineer(4)
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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73
Cover image for Hit a classic Django trap
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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64
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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62
Cover image for An AI-powered news platform that
An AI-powered news platform that delivers concise, real-time AI-industry updates to 2,500+ active users. It scrapes and aggregates 500+ sources daily, removes duplicates, and uses generative-AI summarization to cut reading time significantly while surfacing the most relevant stories. I built the backend responsible for scraping, deduplication, and the LLM summarization pipeline.
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63
Software Engineer(6)
Anil Singh's avatar
Anil Singh
Delhi, India
Full Stack Engineer building Fast Websites and Web Apps
26
Followers
Full Stack Engineer building Fast Websites and Web Apps
Cover image for E-Commerce Platform – Shopsphere
E-Commerce Platform – Shopsphere
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5
Cover image for Startup Discovery & Pitch Platform
Startup Discovery & Pitch Platform
1
5
Cover image for The 108 Peaks – Website Development
The 108 Peaks – Website Development
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10
Cover image for Modern SaaS Website UI – Xora
Modern SaaS Website UI – Xora
1
5
Software Engineer(2)
Prajjwal Barmaiya's avatar
Prajjwal Barmaiya
Delhi, India
punctual, motivated, hardworker, Quick Learner
punctual, motivated, hardworker, Quick Learner
Cover image for Music-Player-Using-HTML-And-CSS
Music-Player-Using-HTML-And-CSS
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5
Cover image for Automatic Attendance System with Face Recognition
Automatic Attendance System with Face Recognition
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3
Cover image for RISC-V Based Single-Cycle Core Design
RISC-V Based Single-Cycle Core Design
1
3
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Software Engineer(2)
Amit Pradhan's avatar
Amit Pradhan
Delhi, India
Full-Stack Developer | Laravel, Angular, Flutter,Next.js
New to Contra
Full-Stack Developer | Laravel, Angular, Flutter,Next.js
Cover image for RaptoCab is a modern and
RaptoCab is a modern and reliable cab booking platform designed to provide safe, affordable, and convenient transportation. The app offers seamless ride booking, real-time trip tracking, driver management, ride history, and secure user profiles. Built with a user-friendly interface, RaptoCab aims to make daily commuting easier for both passengers and drivers while ensuring a smooth and efficient travel experience.
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8
Cover image for TheCadre is a workforce and
TheCadre is a workforce and field operations management platform available on both web and mobile. It helps organizations manage ambassadors and field teams by providing tools for task assignment, route planning, real-time tracking, performance monitoring, and earnings management. The platform features intuitive dashboards, location-based services, reporting tools, and seamless synchronization across devices, enabling businesses to streamline operations, improve team productivity, and gain real-time visibility into field activities. Built using Base44, it offers a scalable and user-friendly experience for both administrators and field representatives.
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10
Cover image for Developed a modern service marketplace
Developed a modern service marketplace platform that connects customers with local service providers. The platform includes provider registration, service discovery, advanced search, secure payment integration, real-time proposal management, and project tracking. Built a responsive web application focused on user experience, scalability, and seamless communication between customers and service professionals.
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Cover image for Shere Punjab News Channel Platform Developed
Shere Punjab News Channel Platform Developed a full-featured digital news platform for Shere Punjab News Channel using Laravel and Next.js, focused on performance, scalability, and responsive user experience. Built dynamic news management modules, category-wise content organization, media streaming integration, and an intuitive admin panel for seamless content publishing. Implemented secure APIs, optimized database queries, and responsive UI components to ensure fast loading and smooth accessibility across desktop and mobile devices. Key Features: Responsive and modern news portal UI using Next.js Laravel-based backend with secure REST APIs News/article management with categories and tags Video & media streaming integration Admin CMS for content publishing and management SEO-friendly architecture and optimized performance Mobile-friendly design for better user engagement Authentication and role-based access control Tech Stack: Laravel, Next.js, PHP, MySQL, JavaScript, REST API, HTML, CSS, Bootstrap/Tailwind CSS
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60
Software Engineer(4)
Lakshay Bhardwaj's avatar
Lakshay Bhardwaj
Delhi, India
I help startups and small businesses build fast, responsive.
New to Contra
I help startups and small businesses build fast, responsive.
Cover image for Development of Restaurant POS System with QR Ordering
Development of Restaurant POS System with QR Ordering
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0
Cover image for Dhumro - Smart Library
Dhumro - Smart Library
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0
Cover image for BeatQueues - DJ Music Suggester
BeatQueues - DJ Music Suggester
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0
Cover image for NHY - Digital QR Menu
NHY - Digital QR Menu & Catalogue System app.nautical.co.in (https://app.nautical.co.in) https://apps.apple.com/in/app/nhy-qr-digital-menu-catalogue/id6767207789 I built NHY to help restaurants, cafes, shops, and service businesses replace printed menus/catalogues with a clean QR-based digital experience. Customers can scan a QR code, browse items, view prices, see images, and place enquiries/orders directly from their phone. Business owners can update menu items, prices, categories, offers, and catalogue content anytime without reprinting anything. What I can build for you: QR menu or product catalogue Mobile-first customer view Admin panel to manage items, prices, images, and categories Table-wise QR codes for restaurants Order/enquiry flow Dashboard for orders, revenue, and inventory Optional AI creatives for offers and promotions Best for restaurants, cafes, cloud kitchens, salons, boutiques, stores, and local businesses that want a modern digital menu or catalogue. If you want a custom QR menu/catalogue for your business, I can build and launch it fast.
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Software Engineer(4)