You will get a scalable Node.js / NestJS backend built for your SaaS product

Ali Z.Status: Offline
Ali Z. Ali Z.
5.0
Rising Talent

Let a pro handle the details

Buy Web Application Programming services from Ali, priced and ready to go.
Ali Z.Status: Offline
Ali Z. Ali Z.
5.0
Rising Talent

Let a pro handle the details

Buy Web Application Programming services from Ali, priced and ready to go.

Project details

Most backend problems I've seen don't start with bad code — they start with decisions made too early, without thinking about what the product becomes 6 months later. Auth bolted on after the fact. No tenant separation until you suddenly need it. Queues added as an afterthought when emails start timing out.

I've spent 6+ years building backends for SaaS products, and the work I'm proudest of is the stuff that didn't need to be rewritten.

What I typically build:

— Multi-tenant architecture with proper workspace/org isolation
— Role-based access control that actually matches how your product works
— Stripe billing, AWS services, webhook integrations — whatever your stack needs
— Background jobs and real-time features (queues, WebSockets) done cleanly
— AI/LLM integrations wired into your core product flows, not just demo wrappers

I write TypeScript, keep the codebase structured, and document things properly so your next developer isn't guessing.

Before I start anything, I'll ask questions until I understand the product — not just the spec. Timeline and pricing depend on scope, and I'd rather figure that out upfront than surprise you later.
Programming Languages
JavaScript, Python, TypeScript
Coding Expertise
Cross Browser & Device Compatibility, Performance Optimization, Design
What's included
Service Tiers Starter
$1,500
Standard
$3,500
Advanced
$6,000
Delivery Time 30 days 45 days 60 days
Number of Revisions
124
Design Customization
Content Upload
Responsive Design
Source Code
5.0
1 review
100% Complete
1% Complete
(0)
1% Complete
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1% Complete
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1% Complete
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DK

Donald K.
5.00
Apr 24, 2026
Critical Bug Fixes Needed — Senior Full-Stack Developer (React, Node.js, AWS, Stripe) Ali was straightforward and got the job done. Fixed the Stripe issue quickly, sorted out the React state issue, and didn't need hand-holding at any point. Good communicator, knows his stuff. Would hire again.
Ali Z.Status: Offline

About Ali

Ali Z.Status: Offline
Senior AI-Powered Full-Stack & DevOps Engineer | Python | MERN | AWS
100% Job Success
5.0  (1 review)
Karachi, Pakistan - 12:16 pm local time
I am a 𝐒𝐞𝐧𝐢𝐨𝐫 𝐀𝐈-𝐏𝐨𝐰𝐞𝐫𝐞𝐝 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 & 𝐃𝐞𝐯𝐎𝐩𝐬 𝐒𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐬𝐭 with 𝟖+ 𝐲𝐞𝐚𝐫𝐬 of experience in building AI-powered applications, scalable web platforms, and cloud-native solutions using modern technologies like 𝐑𝐞𝐚𝐜𝐭, 𝐍𝐨𝐝𝐞.𝐣𝐬, 𝐓𝐲𝐩𝐞𝐒𝐜𝐫𝐢𝐩𝐭, 𝐏𝐲𝐭𝐡𝐨𝐧, 𝐅𝐚𝐬𝐭𝐀𝐏𝐈, 𝐚𝐧𝐝 𝐀𝐖𝐒.

⚙️ 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐖𝐞𝐛 & 𝐀𝐈 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭
Build modern, responsive, and AI-integrated applications using React, Next.js, Node.js, FastAPI, and OpenAI APIs.

🔗 𝐌𝐢𝐜𝐫𝐨𝐬𝐞𝐫𝐯𝐢𝐜𝐞𝐬 & 𝐀𝐏𝐈 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐞
Design and manage scalable, secure APIs in Node.js + TypeScript, following best practices and clean architecture principles.

🛒 𝐄-𝐂𝐨𝐦𝐦𝐞𝐫𝐜𝐞 & 𝐏𝐚𝐲𝐦𝐞𝐧𝐭 𝐒𝐲𝐬𝐭𝐞𝐦𝐬
Develop secure checkout flows, order management, and custom payment gateways optimized for performance and scale.

🚀 𝐏𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞 𝐎𝐩𝐭𝐢𝐦𝐢𝐳𝐚𝐭𝐢𝐨𝐧
Implement Elasticsearch, advanced query tuning, and database indexing for faster response times and higher throughput.

🔄 𝐃𝐞𝐯𝐎𝐩𝐬 & 𝐂𝐥𝐨𝐮𝐝 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧
Hands-on with AWS, GCP, Oracle Cloud, and Alibaba Cloud for deploying, scaling, and automating infrastructure.

🧩 𝐀𝐏𝐈 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬 & 𝐄𝐱𝐭𝐞𝐧𝐬𝐢𝐨𝐧𝐬
Develop custom Chrome extensions, third-party integrations, and automated workflows to streamline business operations.

👨‍💼 𝐋𝐞𝐚𝐝𝐞𝐫𝐬𝐡𝐢𝐩 & 𝐌𝐞𝐧𝐭𝐨𝐫𝐬𝐡𝐢𝐩
Lead agile teams, conduct code reviews, mentor juniors, and drive quality through collaborative engineering practices.

🧬 𝐋𝐞𝐭’𝐬 𝐁𝐮𝐢𝐥𝐝 𝐒𝐨𝐦𝐞𝐭𝐡𝐢𝐧𝐠 𝐆𝐫𝐞𝐚𝐭
I’m not just a coder — I’m a tech partner who understands your goals, aligns with your vision, and delivers solutions that drive real business value.

📩 𝐋𝐞𝐭’𝐬 𝐜𝐨𝐧𝐧𝐞𝐜𝐭 — 𝐲𝐨𝐮𝐫 𝐧𝐞𝐱𝐭 𝐛𝐫𝐞𝐚𝐤𝐭𝐡𝐫𝐨𝐮𝐠𝐡 𝐩𝐫𝐨𝐣𝐞𝐜𝐭 𝐬𝐭𝐚𝐫𝐭𝐬 𝐡𝐞𝐫𝐞.

Steps for completing your project

After purchasing the project, send requirements so Ali can start the project.

Delivery time starts when Ali receives requirements from you.

Ali works on your project following the steps below.

Revisions may occur after the delivery date.

Scope & planning

We go over your requirements, I ask any questions I need, and we agree on the exact scope before anything gets built.

Architecture & setup

Project structure, database schema, and core config are set up. I'll share the repo so you can follow along from day one.

Review the work, release payment, and leave feedback to Ali.