You will get MERN Stack Web App Development with Authentication & APIs
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Project details
You will get custom web applications and consultations about any web development-based queries or problems. I can help fix issues in already developed applications/websites and also guide you about building new websites and web apps, bringing your idea into reality. looking forward to hearing from you.
Programming Languages
HTML & CSS, JavaScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included $1,000
These options are included with the project scope.
$1,000
- Delivery Time 15 days
- Number of Revisions 3
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CC
Christian C.
Apr 5, 2026
Backend Engineer Needed — Build Sprint 1 of Bulk Ingestion Layer
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Kyaw M.
Jun 23, 2025
Full Stack Web Developer Ruby on Rails & React JS
Friendly and communicative freelancer. A good fit for projects
About Salah
Full Stack Developer | AI SaaS, Fintech & Shopify | Python, React
100%
Job Success
Lahore, Pakistan - 12:54 pm local time
I specialize in turning complex product ideas into reliable, high-performance systems. Whether you need a Shopify store that converts, a multi-tenant SaaS platform, or an AI-powered product integration I've built it, shipped it, and optimized it under real production pressure.
📌 Recent highlights:
• Built 𝗛𝗲𝗹𝗹𝗼𝗔𝘁𝗹𝗮𝘀 an AI-powered Shopify store builder with 200+ App Store reviews and a 𝟰.𝟴★ 𝗿𝗮𝘁𝗶𝗻𝗴
• Developed AI-powered products used by 𝟭𝗠+ 𝘂𝘀𝗲𝗿𝘀 across integrated platforms
• Architected and scaled an AI SaaS with 𝟭𝟬,𝟬𝟬𝟬+ 𝗮𝗰𝘁𝗶𝘃𝗲 𝘂𝘀𝗲𝗿𝘀 on a multi-tenant system
• Delivered 𝟰𝟬+ 𝗦𝗵𝗼𝗽𝗶𝗳𝘆 𝘀𝘁𝗼𝗿𝗲𝘀 𝗮𝗻𝗱 𝗰𝘂𝘀𝘁𝗼𝗺 𝗮𝗽𝗽𝘀 for DTC brands and Shopify Plus merchants
• Improved backend/API performance by 𝟰𝟬% for a high-traffic, data-intensive production system
🛠 Core stack:
Python, Django, FastAPI | React, Next.js, TypeScript | Shopify, Liquid, Hydrogen, Remix | Node.js, REST APIs, GraphQL | AWS, Docker, Kubernetes, CI/CD | PostgreSQL, Redis | OpenAI, Anthropic, LangChain | Stripe, Payment Systems
🎯 I work across:
• E-commerce & Shopify (stores, custom apps, Shopify Plus, Hydrogen storefronts)
• AI SaaS & LLM integrations (OpenAI, Anthropic, LangChain-powered products)
• Fintech & payment infrastructure
• Healthcare & wellness platforms
• Multi-tenant SaaS architectures
• API integrations, automation & DevOps pipelines
I care deeply about clean architecture, clear communication, and shipping on time. I don't just write code I ask the right questions upfront, flag risks early, and make sure the final product actually solves your business problem.
If you're building something that needs to scale, looking for a Shopify expert who understands business not just code or need AI integrated into your product the right way,
let's talk. I'm ready to dig in from day one.
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Delivery time starts when Salah receives requirements from you.
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