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FREELANCE / INTEGRATIONS & AI

Zelar IA

A stronger foundation.
More possibilities.

Evolving an AI assistant through refactoring, integration fixes and new channels connected to the product.

My role
Freelance developer
Period
Nov 2025 – Mar 2026
Context
Existing product development
Zelar IASolution diagram
Messages
Assistant + AI
Calendars
Email
AI + integrationsconnected to daily workflows
An explanatory representation of the solution’s flow.

01

The challenge

An existing product needed to evolve and make its integrations more reliable. The work started with understanding the codebase and the flows connecting AI, messaging and everyday tools.

02

My contribution

I took over and refactored the existing codebase, fixed and stabilized integrations with AI, WhatsApp and Telegram. I also added integrations with email, Google and Outlook calendars, and Supabase.

03

Decisions & implementation

01

Understand before expanding

Investigate the existing codebase and integration points to guide the refactoring work.

02

More reliable connections

Work on fixes to AI integrations and the messaging channels used by the assistant.

03

Extend the product

Add email, calendars and Supabase, connecting new functionality to the existing application.

04

The delivery

The delivery combined refactoring with functional expansion of an existing product: integration fixes and new channels for the assistant. Working with this codebase meant understanding the system and connecting changes to its existing behavior.

Technologies used

  • Node.js
  • TypeScript
  • Express.js
  • PostgreSQL
  • Supabase
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04 / LET’S TALK

A good project starts
with a conversation.

An opportunity, a product to build or a system to improve. Tell me what you have in mind.

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