SaaS builder · Security Engineer · Pentester

Secure software, applied AI and pentesting focused on production.

I am Esteban Nicolás Cano. I build modern, automated and secure applications; I also find critical flaws before they reach customers, data or reputation.

Available for focused remote work AI product sprints, pentests and production hardening.
600+ vulnerability disclosures 14 recent pentests 180 tracked findings 13 public recommendations

Capabilities

A rare mix: real offense, product engineering and fast delivery.

This site is focused on concrete work: reducing risk, building maintainable products and accelerating delivery with AI without lowering the technical bar.

Pentesting and offensive security

Web audits, exposure review, controlled exploitation, retesting and actionable reports for technical teams.

AI applications to production

Functional prototypes, full-stack delivery, AI model workflows, automation, security, deploy and real operation.

SaaS, DevOps and architecture

Platform design, integrations, pipelines, cloud infrastructure, performance and maintainability from the first release.

Hardening and technical review

Control validation, public surface, permissions, headers, rate limits, error handling and accidental exposure.

Products

SaaS products I build, ship and run.

Not slideware: real multi-tenant platforms live in production, with billing, authentication, tenant isolation and the same security discipline I apply on the offensive side.

EventTrack

In production

Event venue management

Multi-tenant SaaS for event venues and planners: real-time agenda, leads, quotes, payments, contracts, staff and a client portal in one place, replacing spreadsheets and scattered chats.

Laravel 12 API-first Multi-tenant Sanctum

VisualTrack

In production

Clinical photo tracking

API-first SaaS for clinical and aesthetic professionals to document visual cases: before/after comparison, clinical views, a secure patient portal, agenda, PDF export and shareable links with strong tenant isolation.

Laravel 12 React 19 TypeScript Three.js / STL

Selected work

Other systems I built and put in production.

Custom platforms delivered end to end: product decisions, architecture, security and deploy. Some client work stays unnamed by agreement.

Love Hair

In production

E-commerce · professional hair care

Online store for professional hair colouring: catalogue with hundreds of shade variants, MercadoPago checkout, an automatic colour advisor that builds the full routine from real catalogue products, and an admin panel with audited stock and sales reports.

Laravel 13 React 18 MySQL MercadoPago

CEO Online

In production

Property management platform

Platform for building and consortium administrators: expenses and settlements, payments and collections, suppliers, amenity bookings, reporting and a self-service portal for owners and tenants.

Laravel 11 Blade + Tailwind MySQL Pusher

Confidential project

Confidential

Energy · fuel logistics

Internal dispatch coordination system: it ingests operational spreadsheets, groups the work by destination and automates the messaging with each delivery point, keeping status traceability across the whole run.

Laravel 12 React TypeScript

Pentest stats

Recent findings, clear and comparable.

The current pentesting statistics are preserved and displayed with a more direct read by severity, volume and context.

14

Listed pentests

29

Critical

46

High

180

Total findings

Global distribution

Critical, High, Medium and Low across all loaded results.

Total results: 14

LinkedIn

Public recommendations.

Total results: 13

Secure contact

Tell me what you want to build, protect or validate.

The form uses server-side validation, CSRF, honeypot, time-trap and rate limiting. It does not publish your email or store the message in a database.

Useful first message

  • What you need built, tested or improved.
  • Current stack, environment and deadline.
  • Security constraints or confidentiality requirements.