01
Policy Assistant
Uploads document content, extracts text server-side, combines it with user prompts, and uses Gemini to answer questions precisely.
GeminiDOCX parsingZipArchive
AI workflows · Multi-tool SaaS
Quadri AI turns multiple AI capabilities into one practical product.
A production AI platform that combines Gemini and AssemblyAI for document Q&A, knowledge analysis, meeting transcription, and survey intelligence inside one consistent user workflow.
Project signal
4
Core AI modules delivered as one product with shared storage, user histories, and workflow logic.
Live project
quadriai.infinityfree.me ->4AI-powered tools under one platform
2External AI providers working together
8+Tables storing users, outputs, surveys, and files
10+Formats handled across document and audio workflows
What I built
Four AI products in one operating surface.
The value was not just API usage. It was the workflow design, file handling, persistence, and user-facing control around those AI capabilities.
02
Knowledge Hub
Combines multiple uploaded files into one AI analysis pipeline with custom prompts and persisted output histories.
Multi-file uploadGeminiSession storage
03
Meeting Companion
Handles notes directly or transcribes audio through AssemblyAI before sending results to Gemini for structured outputs.
AssemblyAISpeaker labelsGemini
04
Feedback Mirror
Builds surveys, creates public share links, collects responses without login, and turns feedback into analyzed insights.
Survey builderPublic tokensSentiment analysis
Tech stack
Built like a product, not an API demo.
Gemini 2.0 Flash
Text intelligence for Q&A, synthesis, and structured outputs.
AssemblyAI
Audio transcription and speaker-aware meeting processing.
PHP backend
Workflow orchestration, file extraction, and session control.
MySQL
Persisted histories across tools, files, surveys, and results.
PHPMailer
Transactional account and workflow notifications.
Session security
Hardened session handling and ownership checks.
Engineering challenges
The hard part was workflow orchestration, not API calls.
Area
Async transcription
Problem
Audio transcription does not finish instantly and can outlive naive request lifecycles.
Solution
Built a polling loop with controlled retries and clear status exits before handing results to Gemini.
Area
Multi-format inputs
Problem
DOCX, TXT, CSV, and audio all need different extraction paths.
Solution
Implemented format-specific handlers instead of forcing one generic parsing flow onto everything.
Area
Public surveys
Problem
Survey submission should be public while management remains protected.
Solution
Used share tokens for public access and ownership checks for all management surfaces.
Area
Session hardening
Problem
Default session behavior is not enough for a production-facing application.
Solution
Strengthened session handling with stricter lifecycle control and safer storage assumptions.
Outcomes
Why the product is compelling.
Multi-model orchestration
Shows the ability to chain AI providers into real user workflows.
Full survey lifecycle
Covers creation, collection, and analysis inside one product.
Broad file handling
Purpose-built handling for different input types instead of shallow API wrapping.
About
I care about product logic as much as the model layer.
Quadri AI reflects the kind of work I like: turning raw AI capabilities into stable, repeatable workflows that people can actually use.
I focus on the orchestration layer, persistence, access control, and interaction design that make AI features feel like a real product.
Core skills
PHPMySQLGeminiAssemblyAIFile workflows
Contact
If you need someone who can turn APIs into products, I am available.
Open to product-focused backend and full-stack roles involving real workflow complexity.