You will get Сonsultation Full-Stack Node.js Developer | Next.js | Node JS | JavaScript
Top Rated
Top Rated
Project details
Hello! Facing challenges with front-end or back-end development? I’m here to assist!
💻 Expertise:
🚀 Node.js: As a Node.js developer, I specialize in developing robust server-side applications and APIs.
🎨 React.js: Experienced as a full stack developer React Node, I excel in creating dynamic and interactive user interfaces.
🗄️ Databases: Proficient in managing data efficiently with MySQL, Postgres, and MongoDB Node.js.
🔄 Real-time Communication: Skilled in implementing real-time, bi-directional communication using Socket.IO.
☁️ AWS Services: In-depth knowledge of S3, EC2, ECS, CloudFront, and CI/CD tools for scalable and secure cloud solutions.
As a Senior Full-stack Web Developer, I bring comprehensive expertise in both front-end and back-end development to deliver outstanding web and mobile applications.
During the consultation, I can also provide an assessment of the development of your project.
Don’t hesitate to contact me anytime! I’m ready to build a stunning website or web/mobile app that will drive your business growth.
Looking forward to your messages!
💻 Expertise:
🚀 Node.js: As a Node.js developer, I specialize in developing robust server-side applications and APIs.
🎨 React.js: Experienced as a full stack developer React Node, I excel in creating dynamic and interactive user interfaces.
🗄️ Databases: Proficient in managing data efficiently with MySQL, Postgres, and MongoDB Node.js.
🔄 Real-time Communication: Skilled in implementing real-time, bi-directional communication using Socket.IO.
☁️ AWS Services: In-depth knowledge of S3, EC2, ECS, CloudFront, and CI/CD tools for scalable and secure cloud solutions.
As a Senior Full-stack Web Developer, I bring comprehensive expertise in both front-end and back-end development to deliver outstanding web and mobile applications.
During the consultation, I can also provide an assessment of the development of your project.
Don’t hesitate to contact me anytime! I’m ready to build a stunning website or web/mobile app that will drive your business growth.
Looking forward to your messages!
Programming Languages
PHP, HTML & CSS, JavaScriptCoding Expertise
Cross Browser & Device Compatibility, PSD to HTML, Performance OptimizationWhat's included
| Service Tiers |
Starter
$60
|
Standard
$70
|
Advanced
$90
|
|---|---|---|---|
| Delivery Time | 1 day | 1 day | 2 days |
Number of Revisions | 2 | 1 | 2 |
Number of Pages | 1 | 2 | 5 |
Design Customization | |||
Content Upload | - | - | - |
Responsive Design | - | ||
Source Code |
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Fast Delivery
+$70Frequently asked questions
7 reviews
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AA
Areeba A.
Jul 3, 2026
AI-Assisted Development
Saifullah did a great job contributing to the development of our AI-assisted applications. He was reliable, responsive, and delivered quality work throughout the project. We appreciate his contributions and look forward to working with him again.
TY
Tara Y.
Sep 22, 2025
AI Coding Instruction
We had a great experience working with Saifullah. He provided clear, detailed, and highly effective instruction on AI coding concepts, breaking down complex topics in a way that was easy to understand and apply. His communication was excellent, and he was patient, professional, and responsive throughout the project. I came away with new skills and confidence thanks to his guidance. I would definitely recommend Saifullah to anyone looking for expert support in AI coding or development!
JH
James H.
Sep 6, 2025
AI Development Services (BaseRow, v0.dev, Vercel, next.js, Supabase, React, Cursor, ChatGPT, Claude)
This was a project that is honestly well below Saifullah's skill level. It was basic setup of a Baserow application but he knocked it out of the park. He did it in 45 minutes and I tried to get him to charge me for extra hours but he wouldn't :)
Definitely working with Saifullah again.
Definitely working with Saifullah again.
JH
James H.
Aug 30, 2025
AI Coding Instruction & General Services
Saifullah helped me work through several challenges related to agentic development. We'll be working together on additional projects shortly!
BM
Blint M.
Aug 25, 2025
Custom product price calculator development
Working with Saifullah has been an absolute pleasure! He is extremely talented, reliable, and communicates clearly throughout the project. One thing that really impressed me is his flexibility — he can comfortably work during U.S. hours, which made collaboration seamless and efficient. Saifullah not only delivered high-quality work on time but also went the extra mile to ensure everything exceeded expectations. I highly recommend him to anyone looking for a dedicated and skilled developer!
About Saif Ullah
AI Agent Developer | LLM, RAG & Claude API | AI SaaS Engineer
100%
Job Success
Mardan, Pakistan - 2:51 am local time
I'm Saifullah, a full-stack AI engineer and Software Engineer at Turing, where I've shipped work for PolyAI, Waabi, and Glean. I'm Anthropic-certified across the Claude API, MCP, Agent Skills, and Claude Code - so if you need a Claude API developer who knows the model past surface-level prompting, that's home turf. Top Rated Plus. 100% Job Success. 10+ years in software.
Most freelancers stop at wiring up an API call. I own the system around the model: architecture, frontend, backend, deployment, and the scaling that keeps it alive after launch.
WHAT I BUILD
- AI agents & agentic workflows - autonomous agents and copilots that automate real operations. If your team repeats a task all day, I turn it into a workflow that runs itself and reports back.
- LLM apps on Claude & OpenAI - structured outputs, evals, and guardrails, so results are accurate instead of unpredictable.
- RAG & chat-with-your-data - vector search pipelines that answer from your documents, not the model's imagination.
- AI SaaS & MVPs - idea to live product, from investor-ready MVP to multi-tenant platform.
RECENT BUILDS
* Kastro - AI marketing agent SaaS on the Claude API that generates, schedules, publishes, and analyzes social content. Sole developer, in production in ~3 weeks.
* Refio - AI reference-verification SaaS with automated email flows and AI voice calls. Built the automation engine and a race-condition-safe credit and billing system.
* MiloTrack - multi-tenant NEMT and Medicaid billing SaaS with GPS trip logging and audit-ready exports. Owned trip, billing, and payroll; hardened the data pipeline.
STACK
Next.js, React, TypeScript, Tailwind · Node.js, Python, REST, GraphQL, WebSockets · Supabase, PostgreSQL, MongoDB, vector databases · Claude API, OpenAI API, agent frameworks, RAG, fine-tuning, evals · Docker, CI/CD, cloud deployment.
Best fit: funded startups and founders who want one senior engineer to design, build, ship, and scale - not a team of juniors you have to manage.
Risk-free start: if I don't deliver what we agreed on the first milestone, you get a full refund.
Tell me what success looks like in your first 30 days, and I'll tell you exactly how I'd build it.
Keywords to connect with me:
AI Agent Development · Large Language Model (LLM) · Retrieval-Augmented Generation · Anthropic Claude · OpenAI API · Prompt Engineering · AI App Development · Chatbot Development · Vector Database · AI Development · Next.js · React · Node.js · TypeScript · Python · PostgreSQL · Supabase · API Integration · SaaS Development · Automation
Steps for completing your project
After purchasing the project, send requirements so Saif Ullah can start the project.
Delivery time starts when Saif Ullah receives requirements from you.
Saif Ullah works on your project following the steps below.
Revisions may occur after the delivery date.
Project Planning & Requirement Analysis
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