You will get a production AI agent built using LangChain and LangGraph
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Top Rated
Project details
Most AI agents shown in demos break in production within hours. The agent works perfectly on the rehearsed input, then someone asks it to do something slightly different and it goes into an infinite loop, exhausts the token budget, calls the wrong tool, or hallucinates an answer with no warning. The demo wins the contract, the production deployment loses the customer.
I build production AI agents. Multi-step orchestration with proper state management, tool calling with retries and validation, RAG for grounded responses, observability with LangSmith or Langfuse, cost guardrails, and the kind of error recovery that means the agent fails gracefully instead of catastrophically.
I build production AI agents. Multi-step orchestration with proper state management, tool calling with retries and validation, RAG for grounded responses, observability with LangSmith or Langfuse, cost guardrails, and the kind of error recovery that means the agent fails gracefully instead of catastrophically.
Web Programming Project
API Development, API IntegrationProgramming Languages
JavaScript, Python, TypeScriptWhat's included
| Service Tiers |
Starter
$1,000
|
Standard
$2,200
|
Advanced
$3,000
|
|---|---|---|---|
| Delivery Time | 7 days | 14 days | 15 days |
Number of Revisions | 3 | 4 | 5 |
Source Code | - | - | - |
Frequently asked questions
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JC
Jessica C.
Apr 12, 2026
Founding Full-Stack Developer for AI-Powered SaaS Platform for Women in Business
Safi worked diligently on providing the best solution for my SAAS. He’s an excellent communicator and is outstanding and what he does - I won’t hesitate to work with him again in the future if I need a developer.
HP
Hisham P.
Jun 28, 2025
Website development
RS
Rob S.
Jun 22, 2025
Firebase Expert Required Immediately
Saifullah is an outstanding freelancer with superb skills and excellent attention to detail.
His commitment to delivering high-quality work on time is truly impressive.
Always accurate, reliable, and a pleasure to work with — highly recommended!
His commitment to delivering high-quality work on time is truly impressive.
Always accurate, reliable, and a pleasure to work with — highly recommended!
UA
Uzma A.
May 26, 2025
Make a Simple Change in My React Website – Web Development Help
Great work And highly recommend!
SA
Scarlett A.
May 26, 2025
Fix Small HTML/CSS Bug on My Website
Quick and efficient work. The CSS issue was fixed as expected and everything looks good on mobile now. Thanks!
About Muhammad Safiullah
Full Stack AI Developer | Next.js, React, Node.js | AI Agents | MVPs
100%
Job Success
Islamabad, Pakistan - 2:02 pm local time
I build AI-powered SaaS products in Next.js and React, from first architecture call to production launch. As founding developer on a 500-hour AI platform, I shipped the whole product solo: auth, billing, the OpenAI features, the deploy. One developer who owns product and engineering.
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𝗪𝗛𝗔𝗧 𝗜 𝗕𝗨𝗜𝗟𝗗
▪ 𝗔𝗜 𝗦𝗮𝗮𝗦 𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀 𝗳𝗿𝗼𝗺 𝗶𝗱𝗲𝗮 𝘁𝗼 𝗹𝗮𝘂𝗻𝗰𝗵
Full stack development using Next.js, React, Node.js, NestJS, PostgreSQL, Firebase, Supabase, Stripe, OpenAI, and Claude. I handle architecture, authentication, billing, dashboards, AI integration, deployment, and production readiness.
▪ 𝗣𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻 𝗔𝗜 𝗳𝗲𝗮𝘁𝘂𝗿𝗲𝘀 𝗮𝗻𝗱 𝗮𝗴𝗲𝗻𝘁𝘀
LangChain, LangGraph, RAG pipelines with pgvector or Pinecone, MCP servers, tool calling, observability, retries, and cost guardrails. I build AI features and agents with the kind of structure that holds up after launch, not just in a demo.
▪ 𝗔𝗜 𝗶𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻 𝗶𝗻𝘁𝗼 𝗲𝘅𝗶𝘀𝘁𝗶𝗻𝗴 𝗽𝗿𝗼𝗱𝘂𝗰𝘁𝘀
Adding AI search, chat, summarization, workflow automation, or internal copilots into existing applications without disrupting the current product.
▪ 𝗥𝗲𝗮𝗹-𝘁𝗶𝗺𝗲 𝗮𝗻𝗱 𝘀𝗰𝗮𝗹𝗮𝗯𝗹𝗲 𝘄𝗲𝗯 𝗮𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀
Live collaboration systems, WebSocket applications, streaming updates, and responsive SaaS platforms optimized for performance under real concurrent load.
▪ 𝗘𝗨-𝗳𝗼𝗰𝘂𝘀𝗲𝗱 𝗦𝗮𝗮𝗦 𝗶𝗻𝗳𝗿𝗮𝘀𝘁𝗿𝘂𝗰𝘁𝘂𝗿𝗲
I have shipped a Peppol-integrated Next.js app for B2B invoicing. If you are building for Belgium or the Netherlands, the compliance requirements that went live January 2026 are real and I know them.
▪ 𝗦𝗲𝗻𝗶𝗼𝗿-𝗹𝗲𝘃𝗲𝗹 𝗰𝗼𝗱𝗲𝗯𝗮𝘀𝗲 𝘄𝗼𝗿𝗸
Performance issues, architecture cleanup, hydration bugs, API failures, deployment issues, scaling bottlenecks, and complex production debugging. Past clients on this work: "This guy is a genius with code. Every bug I had was directly analyzed and solved very fast." "You ask, he delivers, and always above expectations." "Works fast, clean and knows A LOT."
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𝗛𝗢𝗪 𝗜 𝗪𝗢𝗥𝗞
▪ 𝗖𝗹𝗲𝗮𝗿 𝘀𝗰𝗼𝗽𝗲 𝗯𝗲𝗳𝗼𝗿𝗲 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 𝘀𝘁𝗮𝗿𝘁𝘀
You get defined deliverables, milestone expectations, and technical direction before any implementation begins.
▪ 𝗖𝗼𝗻𝘀𝗶𝘀𝘁𝗲𝗻𝘁 𝗮𝘀𝘆𝗻𝗰 𝗰𝗼𝗺𝗺𝘂𝗻𝗶𝗰𝗮𝘁𝗶𝗼𝗻
Regular progress updates covering shipped work, blockers, and next steps. Minimal meetings unless you want them.
▪ 𝗖𝗹𝗲𝗮𝗻 𝗮𝗻𝗱 𝗺𝗮𝗶𝗻𝘁𝗮𝗶𝗻𝗮𝗯𝗹𝗲 𝗰𝗼𝗱𝗲
Structured architecture, production-focused decisions, scalable patterns, and long-term maintainability over quick hacks.
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𝗧𝗘𝗖𝗛 𝗦𝗧𝗔𝗖𝗞
𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱: Next.js, React, TypeScript, Tailwind CSS
𝗕𝗮𝗰𝗸𝗲𝗻𝗱: Node.js, NestJS, Express, FastAPI
𝗗𝗮𝘁𝗮 𝗮𝗻𝗱 𝗜𝗻𝗳𝗿𝗮𝘀𝘁𝗿𝘂𝗰𝘁𝘂𝗿𝗲: PostgreSQL, Supabase, Firebase, Redis, pgvector, Pinecone, Docker, AWS, Vercel
𝗔𝗜: OpenAI API, Claude API, LangChain, LangGraph, RAG systems, AI agents, MCP servers
𝗣𝗮𝘆𝗺𝗲𝗻𝘁𝘀 𝗮𝗻𝗱 𝗔𝘂𝘁𝗵: Stripe with subscriptions and usage-based billing, OAuth, JWT, RBAC, Clerk, NextAuth
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I am based in Pakistan, UTC+5, with daily overlap across US, UK, EU, and Australian business hours. Response within 1 to 3 hours during 08:00 to 02:00 PKT, Monday through Saturday.
If you are building an AI SaaS from scratch, integrating AI into an existing platform, or need a senior developer who can own both product and engineering execution, send me a message with what you are building. I will respond within a few hours with how I would approach it.
Steps for completing your project
After purchasing the project, send requirements so Muhammad Safiullah can start the project.
Delivery time starts when Muhammad Safiullah receives requirements from you.
Muhammad Safiullah works on your project following the steps below.
Revisions may occur after the delivery date.
Discovery Call
60-minute call covering the task the agent will perform, the tools it needs, autonomy level (fully autonomous vs human-in-the-loop), accuracy targets, cost budget per run, and your existing tech stack.
Agent Architecture Document
I send you a written architecture document.