sara. PT

Full-stack software engineer

Multi-tenant SaaS platforms for domains where mistakes are expensive.

I build products end-to-end — backend, frontend, infra and AI agents — in industries where business rules are dense and tolerance for error is low.

See work Get in touch

Open to work · contract

How I work

01

End-to-end SaaS

Architecture, backend, frontend, deploy. I don’t outsource the parts that matter — I ship the full stack, from schema to component.

02

Multi-tenant in production

Schema-level isolation in PostgreSQL, decoupled modules in Laravel, no data leaks between tenants. Same pattern across multiple products.

03

AI applied to the product

MCP agents running inside the product, not chatbots bolted on top. They operate on real data, with real permissions, under the same tenant model.

Selected work

Clients can’t be named publicly. I can go deeper under NDA — reach out.

CASE / 01

Public procurement

B2G SaaS platform

Multi-tenant platform for companies bidding on government contracts. Integration with public APIs, automated prospecting, tender document analysis and price comparison across competing platforms. Conversational MCP agent operating on tenant data.

  • · Modular Laravel
  • · Multi-tenant PostgreSQL
  • · Vue 3 + Inertia
  • · MCP Server

Architecture · Backend · Frontend · AI

CASE / 02

Public sector

Municipal government platform

Modular platform for city-hall operations, with schema-level isolation per municipality. Same technical base as the B2G product, adapted to a different regulatory domain.

  • · Modular Laravel
  • · Multi-tenant PostgreSQL
  • · Vue 3 + Inertia

Architecture · Backend · Frontend

CASE / 03

HR & operations

Modular ERP with HR/Payroll

Integrated management system with payroll, time tracking and HR routines. Modules pluggable per client. MCP agent for HR operations in natural language.

  • · Modular Laravel
  • · Multi-tenant PostgreSQL
  • · Vue 3 + Inertia
  • · MCP Server

Architecture · Backend · Frontend · AI

Stack

Backend

  • Laravel · PHP 8.2+
  • Multi-tenant PostgreSQL
  • Sanctum · Queues · Jobs

Frontend

  • Vue 3 · strict TypeScript
  • Inertia.js
  • Tailwind

Infra

  • Docker · CI/CD
  • Schema-per-tenant
  • Observability

AI

  • MCP Servers
  • Agent integration
  • Tool use scoped to tenant

About

Software engineer focused on SaaS platforms in complex domains. I work with Laravel + Vue 3 + multi-tenant PostgreSQL on products live in production across public sector, municipal government and HR/payroll.

Over the last few years I consolidated heterogeneous projects into a coherent technical platform — same modular architecture, same tenant isolation model, same quality bar. That lets me ship new features in any of them in half the time.

I’m currently exploring AI agents integrated into the product via MCP — not as a marketing layer, but as a real operational interface.

Let’s talk

Open to contract work. For NDA-level detail, drop me an email.