You will get an OpenAI / ChatGPT integration built into your web app
Top Rated
Project details
Adding an AI feature to your product isn't hard. Adding one that's reliable, cost-controlled, and actually useful to your users — that takes more than calling the OpenAI API and returning the response.
I've integrated OpenAI into SaaS products, marketplaces, and internal tools across a dozen production applications. I handle the parts that trip developers up: streaming responses, token cost management, prompt engineering, context window limits, fallback handling, and UI that feels fast even when the model is thinking.
What you'll get:
OpenAI API integration (GPT-4o, GPT-3.5, or your preferred model) into your existing app
Streaming responses — text appears word by word, not all at once
Prompt engineering — instructions, persona, and constraints tuned for your use case
Conversation history management so context carries across messages
Token usage tracking and cost controls (rate limiting, max token caps)
Secure server-side API key handling — your key never exposed to the client
UI — chat interface, inline generation, or button-triggered AI feature
Fallback handling and graceful error messages when the API is unavailable
I've integrated OpenAI into SaaS products, marketplaces, and internal tools across a dozen production applications. I handle the parts that trip developers up: streaming responses, token cost management, prompt engineering, context window limits, fallback handling, and UI that feels fast even when the model is thinking.
What you'll get:
OpenAI API integration (GPT-4o, GPT-3.5, or your preferred model) into your existing app
Streaming responses — text appears word by word, not all at once
Prompt engineering — instructions, persona, and constraints tuned for your use case
Conversation history management so context carries across messages
Token usage tracking and cost controls (rate limiting, max token caps)
Secure server-side API key handling — your key never exposed to the client
UI — chat interface, inline generation, or button-triggered AI feature
Fallback handling and graceful error messages when the API is unavailable
Programming Languages
JavaScript, Python, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$500
|
Standard
$1,200
|
Advanced
$2,500
|
|---|---|---|---|
| Delivery Time | 5 days | 10 days | 18 days |
Number of Revisions | 1 | 2 | 3 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code | - | - | - |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$200
Additional AI feature
(+ 2 Days)
+$300
Usage analytics dashboard
(+ 2 Days)
+$300
Switch to Anthropic/Mistral API
(+ 2 Days)
+$200Frequently asked questions
25 reviews
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AA
Adnan A.
Aug 26, 2026
Full Stack Developer for AI-Powered Startup
Great experience with a deep understanding of the materials. Would always recommend.
OL
Omer L.
Jul 30, 2026
React Native Developer to Build Scalable App
Talha is an amazing developer, and a great partner for every software oriented product!
He communicates very clearly, and know how to get good advices about software decisions, and product decisions as well.
He is very honest and managing his working hours clearly and wisely.
I would definitely use his services for my next projects!
He communicates very clearly, and know how to get good advices about software decisions, and product decisions as well.
He is very honest and managing his working hours clearly and wisely.
I would definitely use his services for my next projects!
OL
Omer L.
Jul 30, 2026
Backend Developer for MVP of PicUpp
Talha is an amazing developer, and a great partner for every software oriented product!
He communicates very clearly, and know how to get good advices about software decisions, and product decisions as well.
He is very honest and managing his working hours clearly and wisely.
I would definitely use his services for my next projects!
He communicates very clearly, and know how to get good advices about software decisions, and product decisions as well.
He is very honest and managing his working hours clearly and wisely.
I would definitely use his services for my next projects!
FV
Fabiola V.
Jul 22, 2026
JS/React Developer Required
Talha has helped me in a very long project, and was patient and clear in explaining everything to me! Highly recommend
AA
Adnan A.
Jul 21, 2026
Mentor for HTML CSS & JavaScript to build responsive web
Great developer, skilled, reliable, and easy to communicate with. Talha delivered quality work on time, and I’d happily work with him again.
About Talha
Expert AI Product Engineer | SaaS, LLMs, RAG, AI Agents & Automations
95%
Job Success
Lahore, Pakistan - 11:01 pm local time
🔹 Built Production systems generating $200K+ in combined MRR across marketplaces, automotive, and B2B SaaS.
🔹 Product Development · AI Automation · LLM Development · RAG Systems · AI Agents
🔹 Founding Engineer at YC-backed Startup | 5+ Years Building Products
I help startups and businesses build AI-powered SaaS products, automation systems, and full-stack web applications that are reliable enough for real users, not just demos.
𝗠𝘆 𝗖𝗼𝗿𝗲 𝗦𝗲𝗿𝘃𝗶𝗰𝗲𝘀
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𝗔𝗜 𝗔𝗴𝗲𝗻𝘁𝘀 & 𝗖𝘂𝘀𝘁𝗼𝗺 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻
Autonomous AI agents and workflow automations (OpenAI, LangChain, n8n, Make, Zapier) that handle support, research, data, outreach, and internal ops, so your team does less manual work.
𝗔𝗜-𝗣𝗼𝘄𝗲𝗿𝗲𝗱 𝗔𝗽𝗽𝘀 & 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻𝘀
ChatGPT/OpenAI features, RAG knowledge-base search, and AI chatbots built into your product and reliable for real users.
𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 𝗣𝗿𝗼𝗱𝘂𝗰𝘁 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁
Idea to launch: planning, architecture, development, deployment, and support. End-to-end ownership, not just code.
𝗠𝗩𝗣 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 𝗳𝗼𝗿 𝗦𝘁𝗮𝗿𝘁𝘂𝗽𝘀
Launch fast, validate your idea, and build something investors and users take seriously.
𝗙𝗶𝘅𝗶𝗻𝗴 & 𝗦𝗰𝗮𝗹𝗶𝗻𝗴 𝗘𝘅𝗶𝘀𝘁𝗶𝗻𝗴 𝗔𝗽𝗽𝘀
Debugging, performance optimization, refactoring, and hardening for real-world traffic and paying users.
𝗙𝗿𝗮𝗰𝘁𝗶𝗼𝗻𝗮𝗹 𝗣𝗿𝗼𝗱𝘂𝗰𝘁 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿
Your ongoing senior technical partner when you don't have a co-founder. I own roadmap execution week to week and keep you shipping.
𝗦𝗸𝗶𝗹𝗹𝘀 & 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝗲𝘀
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🤖 𝗔𝗜 / 𝗟𝗟𝗠: OpenAI | LangChain | RAG | AI Agents | n8n | Make | Zapier | Prompt Engineering
🖥️ 𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱: HTML5 | CSS3 | Tailwind | JavaScript | Reactjs | Nextjs | Redux | TypeScript | MUI | Chakra UI | AntD
⚙️ 𝗕𝗮𝗰𝗸𝗲𝗻𝗱: Nodejs | Expressjs | Socket IO | Django | Python
🗄️ 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲𝘀: MongoDB | MySQL | PostgreSQL | GraphQL
🔌 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻𝘀: OpenAI | Stripe | PayPal | Google | and more
🎨 𝗗𝗲𝘀𝗶𝗴𝗻: Figma | Adobe XD | Photoshop | Illustrator
𝗪𝗵𝘆 𝗠𝗲?
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- Top Rated on Upwork
- Clear scope, milestones, and communication from day one
- Strong focus on production-ready architecture, not throwaway prototypes
- Experience across AI, SaaS, automation, frontend, backend, and integrations
- I take ownership of the product, not just the assigned tickets
I take full ownership of your vision and deliver fast, with clean architecture and clear communication. When you work with me, you get a partner invested in shipping something that actually works and scales.
🔑 𝗙𝗶𝗻𝗱 𝗺𝗲 𝘄𝗶𝘁𝗵 𝘁𝗵𝗲𝘀𝗲 𝗸𝗲𝘆𝘄𝗼𝗿𝗱𝘀
AI product engineer, AI agent developer, AI automation, workflow automation, n8n, Zapier, OpenAI, ChatGPT integration, LangChain, RAG, AI chatbot, LLM, generative AI, MVP development, SaaS development, full-stack developer, React, Nextjs, Nodejs, TypeScript, Python, fractional engineer
Steps for completing your project
After purchasing the project, send requirements so Talha can start the project.
Delivery time starts when Talha receives requirements from you.
Talha works on your project following the steps below.
Revisions may occur after the delivery date.
STEP 1
Feature Definition We define exactly what the AI feature does, who uses it, and what a good response looks like. I write a draft system prompt and share it for your input before any code is written.
STEP 2
Backend Integration OpenAI API integrated server-side. Streaming, conversation history, and token management implemented. Rate limiting and cost controls configured.