Freelance Backend Engineers in Uttar PradeshFreelance Backend Engineers in Uttar Pradesh
ProjectsPeople
Wahid Ali's avatar
Wahid Ali
proGhaziabad, India
Full-Stack Developer for SaaS, AI & Marketplace MVPs
$10k+
Earned
5x
Hired
4.9
Rating
27
Followers
Full-Stack Developer for SaaS, AI & Marketplace MVPs
Cover image for Flight Booking Platform
Flight Booking Platform
1
41
Cover image for Innovation Intelligence Platform
Innovation Intelligence Platform
1
40
Cover image for Lead Recovery Platform
Lead Recovery Platform
1
13
Cover image for Security & Defense Marketplace Platform
Security & Defense Marketplace Platform
1
2
Backend Engineer(4)
Sparsh Gupta's avatar
Sparsh Gupta
Noida, India
Full-Stack & AI Developer building scalable SaaS products
New to Contra
Full-Stack & AI Developer building scalable SaaS products
Cover image for CaratIQ — Jewelry Retail Cloud Platform
CaratIQ — Jewelry Retail Cloud Platform
0
4
Cover image for Skej — Conversational AI Scheduling Platform
Skej — Conversational AI Scheduling Platform
0
8
Cover image for CaratIQ — Modern Jewelry Management
CaratIQ — Modern Jewelry Management & Catalog Platform Managing dynamic jewelry inventories across multiple sales channels often breaks under traditional database models due to real-time pricing recalculations and complex SKU variations. What I Built: • Dynamic Catalog & Multi-Attribute Filtering: Architected sub-150ms catalog searches handling live metal spot pricing, carat grades, and stone certification tiers without client-side lag. • Server-Rendered Architecture: Leveraged Next.js Server Components to offload bulk queries, significantly reducing initial client bundle size. • Automated Inventory & Invoicing Sync: Integrated custom webhooks and payment flows for instant stock reservation and order processing. • Role-Based Access Control: Built multi-tenant admin dashboards for floor staff, store managers, and suppliers. Tech Stack: Next.js, React, Node.js, PostgreSQL, Tailwind CSS, REST APIs & Webhooks Results: • Sub-150ms Query Speeds: Cut search and filtering latency by over 40% across extensive catalog datasets. • Zero Sync Collisions: Automated live price updates and inventory locks, eliminating overselling across peak sales windows. The Outcome: Transformed a traditionally fragmented retail inventory system into a unified, high-speed SaaS platform that bridges in-store sales and digital catalog operations.
1
22
Cover image for Grantiv – AI-Powered Grant Discovery Platform
Grantiv – AI-Powered Grant Discovery Platform
0
5
Backend Engineer(2)
Krishna Singh's avatar
Krishna Singh
Varanasi, India
JavaScript FullStack Dev | Web, Mobile & AI Tools
19
Followers
JavaScript FullStack Dev | Web, Mobile & AI Tools
Cover image for Travel Booking Platform Backend Development
Travel Booking Platform Backend Development
2
11
Cover image for TS-SAAS - Production Ready Starterkit
TS-SAAS - Production Ready Starterkit
2
16
Cover image for Development of Arnoz Headless Shopify Storefront
Development of Arnoz Headless Shopify Storefront
2
17
Cover image for DriveGuard - Expo Mobile App Development
DriveGuard - Expo Mobile App Development
2
14
Backend Engineer(2)
IPH Technologies's avatar
IPH Technologies
Lucknow, India
Smart, AI-driven software for modern businesses
Smart, AI-driven software for modern businesses
Cover image for Baby Milestones & Photo Editor – Capture Precious Moments
Baby Milestones & Photo Editor – Capture Precious Moments
0
4
Cover image for TripComrades – Travel Help & Companion Matching App
TripComrades – Travel Help & Companion Matching App
0
10
Cover image for Food Delivery & Ride-Hailing App Development
Food Delivery & Ride-Hailing App Development
0
4
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Backend Engineer(2)
Yash Rajan shukla's avatar
Yash Rajan shukla
Noida, India
14-year-old coder turned to expert developer 🚀
14-year-old coder turned to expert developer 🚀
Cover image for MeditoTravel
MeditoTravel
0
6
Cover image for Competishun
Competishun
0
6
Cover image for Bansal Classes
Bansal Classes
0
4
Cover image for Bansal Classes
Bansal Classes
0
1
Backend Engineer(2)
Ishan Berry's avatar
Ishan Berry
Agra, India
Backend Developer|Web Developer.I Builds Robust Application.
Backend Developer|Web Developer.I Builds Robust Application.
Cover image for AI-Driven Interactive Java Tutor Development
AI-Driven Interactive Java Tutor Development
0
10
Cover image for Real-Time Quiz Platform Development
Real-Time Quiz Platform Development
0
14
Cover image for Rajasthan Police Hackathon: Police Feedback System
Rajasthan Police Hackathon: Police Feedback System
0
8
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Backend Engineer(3)