Work

Deliverist AI Chatbot

Shipped
Sole Product Engineer·OSIT / Deliverist·Jun to Nov 2025

Conversational commerce for Saudi logistics. RAG pricing, 5 AI tools, speech-to-text, bilingual.

Deliverist AI Chatbot

5

AI Tools

13

Wizard Steps

17

API Routes

6 months

Duration

Highlights

  • →Cut response latency ~500ms by migrating from two-step intent detection API to native Vercel AI SDK tool calling
  • →Unblocked product launch with a RAG pricing pipeline (PDF → OpenAI embeddings → PostgreSQL vector retrieval) when the backend pricing API wasn't ready
  • →13-step shipment wizard embedded in chat turned a support tool into a transaction channel
  • →Bilingual EN/AR with full RTL, speech-to-text via Whisper, and iframe embedding for distribution

The Problem

Deliverist moves luggage between doors and airports across Saudi Arabia. Their customer-facing product was a static form with 13 fields. Nobody wants to fill that out on their phone at an airport. They needed a single conversational interface for quoting, booking, tracking, and complaints in English and Arabic.

What I Built

01

13-Step Shipment Wizard

Embedded booking flow inside chat: pickup location, destination, item type, weight, dimensions, packaging, insurance, pickup date, delivery speed, payment method, COD toggle, special instructions, and confirmation. Each step validates via tool calls.

02

RAG Pricing Pipeline

PDF pricing documents are chunked, embedded via OpenAI, and stored in PostgreSQL with pgvector. When a user asks for a quote, the system retrieves the relevant tariff rows and computes a live price. Updating prices requires uploading a new PDF, zero code changes.

03

5 AI Intent Tools

Vercel AI SDK tool calling routes user utterances to the right handler: quote, book, track, complaint, or FAQ. Each tool has a typed Zod schema and runs in parallel where possible. Intent detection happens in a single inference pass.

04

Bilingual RTL with Speech

Full Arabic/English support with RTL layout via logical properties. Speech-to-text via Whisper handles Saudi dialects. Both languages share the same conversation state so users can switch mid-chat.

Architecture

Deliverist AI Chatbot architecture

Tech Stack

All projects
  • Next.js
  • Vercel AI SDK
  • DeepSeek
  • OpenAI
  • PostgreSQL
  • Drizzle ORM
  • Google Maps API
  • Whisper
  • LangChain

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