You will get OpenAI, LangChain & RAG integration for your SAAS or Web App
Project details
You will get a production-ready AI integration for your SaaS platform, web application, or startup product using OpenAI, Claude, Gemini, LangChain, RAG, and modern backend technologies. I specialize in building scalable AI-powered systems that are cleanly integrated, reliable, cost-optimized, and designed for real-world business use cases.
Whether you need a chatbot, AI assistant, document-based RAG system, AI automation workflow, or custom LLM integration, I can help you implement it with a strong focus on performance, maintainability, and user experience.
My services include:
GPT, Claude, and Gemini API integration
LangChain agent workflows
RAG implementation with vector databases
Prompt engineering and optimization
Streaming responses and token cost control
FastAPI or Node.js backend development
Testing, deployment, and documentation
I focus on building AI features that are practical, scalable, and ready for production rather than experimental prototypes. The final delivery will be clean, documented, and easy to extend as your product grows.
Whether you need a chatbot, AI assistant, document-based RAG system, AI automation workflow, or custom LLM integration, I can help you implement it with a strong focus on performance, maintainability, and user experience.
My services include:
GPT, Claude, and Gemini API integration
LangChain agent workflows
RAG implementation with vector databases
Prompt engineering and optimization
Streaming responses and token cost control
FastAPI or Node.js backend development
Testing, deployment, and documentation
I focus on building AI features that are practical, scalable, and ready for production rather than experimental prototypes. The final delivery will be clean, documented, and easy to extend as your product grows.
Programming Languages
JavaScript, Python, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$100
|
Standard
$160
|
Advanced
$350
|
|---|---|---|---|
| Delivery Time | 3 days | 5 days | 7 days |
Number of Revisions | 1 | 2 | 3 |
Number of Pages | 2 | 3 | 5 |
Design Customization | |||
Content Upload | - | ||
Responsive Design | |||
Source Code | - | - |
Optional add-ons
You can add these on the next page.
Additional Revision
+$50
Additional Page
(+ 2 Days)
+$100Frequently asked questions
About Arslan
Full Stack Developer | AI Engineer | Chatbots | Automation | n8n | GHL
Lahore Cantt, Pakistan - 12:31 pm local time
GoHighLevel | n8n | Makecom | Vapi | Retell | OpenAI | LangChain
React | Nextjs | Nodejs | FastAPI | Python
I’m Arslan, a full-stack developer partnered with Devbox Technologies, with 8+ years of experience building AI systems, automation workflows, and scalable software products.
Most developers can set up a chatbot.
Most automation specialists can build a workflow.
Very few can do both and then build the actual software product around it.
That is what I do.
I am a full-stack developer and AI engineer with 8+ years of experience.
I build AI agents, chatbots, voice agents, and automation systems and when the job needs a custom web application or SaaS product behind it, I build that too.
One hire. Full delivery.
AI AGENTS & CHATBOT DEVELOPMENT
✔️ Custom AI chatbots OpenAI GPT-4o, Claude, Gemini
✔️ RAG pipelines chat with your PDFs, docs, databases
✔️ LangChain & LlamaIndex multi-step agent architecture
✔️ AI agents for sales, support, lead gen, operations
✔️ WhatsApp, Telegram, Instagram, Facebook, web chatbots
✔️ OpenClaw agent workflows for business automation
✔️ Multi-agent systems with memory, tool-calling, reasoning
AI VOICE AGENTS
✔️ Inbound & outbound AI calling Vapi, Retell, Bland AI
✔️ AI receptionist answers calls, qualifies, books appointments
✔️ ElevenLabs, Twilio, Synthflow voice integration
✔️ Appointment booking direct into GHL, HubSpot, Calendly
✔️ Post-call CRM sync notes, tags, pipeline stage updates
✔️ SMS & WhatsApp follow-up triggered automatically after call
GOHIGHLEVEL & CRM AUTOMATION
✔️ GoHighLevel full setup workflows, funnels, pipelines
✔️ GHL snapshots, sub-accounts, SaaS mode, white-label
✔️ GHL AI chatbot, GHL voice agent, A2P 10DLC registration
✔️ HubSpot automation, CRM setup, workflows, integrations
✔️ Salesforce, Pipedrive, Zoho, Bitrix24, Kommo automation
✔️ Lead capture → qualify → CRM → nurture → close automation
WORKFLOW AUTOMATION n8n | Makecom | Zapier
✔️ n8n workflows self-hosted or cloud, complex logic
✔️ Makecom multi-step scenarios with advanced error handling
✔️ Zapier automation filters, paths, webhooks, formatters
✔️ Email, SMS & WhatsApp sequences and follow-up automation
✔️ Lead routing, distribution, and CRM pipeline updates
✔️ Airtable, Notion, Google Sheets, Slack, ClickUp syncs
✔️ API & webhook integrations connecting tools in your stack
CUSTOM WEB APPS & SAAS DEVELOPMENT
This is where most AI and automation specialists stop.
I don’t.
When your project needs a real product built around the automation I build that too.
✔️ React & Nextjs production-ready frontends
✔️ Nodejs, Python, Django, FastAPI backend systems
✔️ PostgreSQL, MongoDB, Redis, Supabase data architecture
✔️ REST APIs, GraphQL, webhooks, full integrations
✔️ SaaS platforms multi-tenant, billing, role-based access
✔️ AI-powered SaaS MVPs from idea to launch
PLATFORMS & TOOLS
AI / LLM:
OpenAI API, LangChain, LlamaIndex, LangGraph
RAG, Pinecone, ChromaDB, FAISS, Prompt Engineering
GPT-4o, Claude, Gemini, DeepSeek, OpenClaw
Voice AI:
Vapi, Retell AI, ElevenLabs, Bland AI, Synthflow
Twilio, WhatsApp Cloud API, SMS Automation
CRM & Automation:
GoHighLevel (GHL), HubSpot, Salesforce, Pipedrive
Zoho CRM, Bitrix24, Kommo, ActiveCampaign
n8n, Makecom, Zapier, Pabbly, Airtable
Development:
React, Nextjs, Nodejs, Python, Django, FastAPI
PostgreSQL, MongoDB, Redis, Docker, AWS, GitHub
WHY CLIENTS CHOOSE ME
Most freelancers specialize in one area AI, automation, or development.
When projects need all three, things break.
I handle all of it. Cleanly. End-to-end.
✔️ AI agent + automation + full stack in one place
✔️ 8+ years building real systems, not demos
✔️ Backed by Devbox Technologies (UK software house)
✔️ You own everything code, workflows, credentials
✔️ Clean delivery, clear communication, no ghosting
✔️ Fast turnaround for automation and SaaS builds
Outcomes
✔️ 𝗥𝗲𝗱𝘂𝗰𝗲 𝗺𝗮𝗻𝘂𝗮𝗹 𝘄𝗼𝗿𝗸 𝟱𝟬–𝟳𝟬% through AI automation and workflows
✔️ 𝗜𝗻𝗰𝗿𝗲𝗮𝘀𝗲 𝗹𝗲𝗮𝗱 𝗰𝗼𝗻𝘃𝗲𝗿𝘀𝗶𝗼𝗻 𝟮𝟬–𝟰𝟬% using AI chatbots and assistants
✔️ 𝗦𝗽𝗲𝗲𝗱 𝘂𝗽 𝗽𝗿𝗼𝗰𝗲𝘀𝘀𝗲𝘀 𝟯𝟬–𝟱𝟬% with automation and integrations
✔️ 𝗦𝗮𝘃𝗲 𝟭𝟬–𝟮𝟬+ 𝗵𝗼𝘂𝗿𝘀/𝘄𝗲𝗲𝗸 by removing repetitive tasks
✔️ 𝗟𝗮𝘂𝗻𝗰𝗵 𝗳𝗮𝘀𝘁𝗲𝗿 with complete end-to-end delivery
✔️ 𝗦𝗰𝗮𝗹𝗲 𝘄𝗶𝘁𝗵𝗼𝘂𝘁 𝗿𝗲𝗯𝘂𝗶𝗹𝗱𝘀 using clean architecture
Send me what you are building.
I’ll reply with a loom video with clear plan, timeline, and honest scope.
Steps for completing your project
After purchasing the project, send requirements so Arslan can start the project.
Delivery time starts when Arslan receives requirements from you.
Arslan works on your project following the steps below.
Revisions may occur after the delivery date.
Discovery & Audit
I review your requirements, current setup, APIs, codebase, and AI use case to plan the best implementation approach.
AI Integration & Development
I integrate the required AI models, RAG workflows, backend APIs, automation, or agent systems based on your selected package.