20+ Years Experience

Turn Your Million-Dollar Idea Into a Real Micro-SaaS

I'm Gilberto Santos, a Principal Software Engineer with 20+ years helping founders turn ambitious ideas into fast, scalable cloud products.

From idea → MVP → scalable SaaS

Built using the same architectures used by companies like Citi

No bloated agencies. No junior teams. Just one senior engineer who owns the outcome

Book a Free Strategy Call See How It Works

AWS Certified Solutions Architect

Oracle Certified Professional

Principal Engineer & Tech Lead

Gilberto Santos - Principal Software Engineer

20+

Years Experience

You Don't Just Need a Developer. You Need a Product Architect.

Most SaaS projects fail not because of bad ideas — but because of wrong tech decisions, systems that don't scale, slow delivery, or teams that don't understand the business.

20+ Years Building Real-World Systems

Microservices architecture
Event-driven systems
Serverless platforms
Enterprise-grade software

This means your Micro-SaaS is built right from day one, not patched later.

Building Real Solutions

Every day, for 20+ years

What I Build For Founders

You're not getting a freelancer. You're getting a CTO-level partner who owns the outcome.

SaaS Architecture & System Design

Scalable, cloud-native architecture designed to grow with your business

MVP Development

Full-stack development from backend APIs to frontend interfaces

Cloud & AWS Setup

Production-ready infrastructure that scales when you grow

Microservices & Event-Driven

Modern architecture patterns for complex business logic

CI/CD & Automation

Automated deployment pipelines for rapid iteration

Production-Ready Systems

Monitoring, logging, and performance optimization from day one

You Want

An idea

A landing page

A prototype

A dev

You Get

A real SaaS product

A revenue-ready funnel

A cloud-native system

A CTO-level partner

From Idea to Live Micro-SaaS

A proven 4-step process that takes you from concept to market-ready product.

Strategy Call

We map your idea, business model, and technical risks.

Architecture Design

I design your system using patterns used by large tech companies.

Build the MVP

We ship a real, usable product — not a demo.

Launch & Scale

Your SaaS is ready to take users, payments, and growth.

Most Developers Write Code. I Design Businesses.

Led teams building microservices & serverless systems

Built high-performance cloud applications

Introduced clean code, testing, and scalable architecture

Mentored engineers and ran technical academies

Delivered enterprise-grade systems for companies like Citi

You get the thinking of a CTO — without hiring one.

20+ Years Experience

Enterprise & Startup Systems

People Trust Me with Critical Systems

From enterprise giants to fast-growing startups

Citi – Data Analytics Team

"Gilberto migrated a huge Java system from Maven to Gradle, cutting build times from 5 minutes to 1 minute — improving the entire team's productivity."

Tech Lead

Enterprise Banking

Suntico

"He mastered a complex system fast, delivered results quickly, and naturally took ownership."

Engineering Manager

SaaS Platform

Tech Education

"Students credit his teaching for launching their software careers in real government and enterprise roles."

Educational Institution

Software Training

20+ years experience50+ projects deliveredEnterprise & startup systems

Selected Work

What I'm building right now

SaaS · Live

Promptfy

The home for AI prompts: a versioned private library, a public marketplace for creators, and one MCP endpoint that brings your whole library into Cursor or Claude.

Visit promptfy.it →

Next.jsNestJSPostgreSQLRedisMCPStripe

Fintech

Nosso Plano

Multi-tenant household finance tracker for couples paying off shared debt and building savings together, with payoff projections and an immutable transaction log.

ReactViteNestJSPostgreSQLAWS S3Playwright

Developer Tools

ai-vault

Manage secrets and API keys across environments, for developers and AI agents alike, through a web app, a REST API and an MCP server.

Next.jsNestJSMCPPostgreSQLTypeScript

AI Automation

video-explainer

Turns a feature script into a branded, narrated 1080p explainer video, voiced with ElevenLabs and rendered with Remotion, driven from Claude Code.

RemotionReactElevenLabsPythonClaude Code

AI · Early Stage

ai-brain

Institutional memory for organizations: capturing the context, alternatives and outcome behind each decision, so teams know why something was decided.

AIKnowledge Management

Perfect If You Are...

Perfect For:

A founder with a SaaS idea
A non-technical entrepreneur
A startup that needs a real system, not a prototype
A business wanting to productize an idea

Not For:

People looking for the cheapest dev
One-page websites
Fiverr-style gigs
Those not serious about building a business

Why I'm Not Cheap

Because cheap SaaS is the most expensive mistake you can make

Most people think they're paying for code. They're not.

They're paying for:

Decisions

Architecture

Scalability

Security

Speed

Ability to grow without rewriting

What "Cheap Developers" Sell

✗A system that breaks at 100 users
✗A database that can't scale
✗Code no one else understands
✗Fragile infrastructure
✗An MVP that has to be thrown away

You don't pay less. You just pay twice.

What You Get With Gilberto

✓Designed microservices & serverless systems
✓Built event-driven platforms
✓Worked on enterprise systems at Citi
✓Led engineering teams
✓Set up CI/CD & cloud infrastructure

Built like a real company from day one.

You're Not Buying Code

You're buying 20 years of mistakes

Every architecture decision I make prevents rewrites, downtime, lost customers, and investor red flags. That's where the real ROI is.

Choose How Far You Want to Go

Simple, transparent pricing built around outcomes — not hours

Blueprint

Idea to Blueprint

€1,500

Is this SaaS worth building?

90-minute deep strategy call
Business & technical feasibility analysis
SaaS architecture blueprint
Tech stack & cloud design
MVP feature list
Development roadmap (cost + timeline)

Start with Blueprint

MVP Launch

Get Real SaaS Live

€12k–€25k

Get a real SaaS into the hands of users

Everything from Tier 1
Fully working SaaS MVP
Frontend + backend
Cloud hosting on AWS
Authentication & user accounts
Core product features
CI/CD & production deployment
Basic analytics & monitoring
6–10 weeks timeline

Launch My SaaS

Scale & Grow

Turn MVP into a Company

€3,500/mo

Turn your MVP into a real company

System optimization & scaling
New feature development
Performance tuning
Security & reliability upgrades
Cloud cost optimization
Architecture evolution
CTO-level guidance

Scale My Product

Your success is guaranteed. No results? No payment.

Let's Turn Your Idea Into a Real Business

Book a free call. I'll tell you if your idea is technically viable, what it would take to build, and what mistakes to avoid.

Book Your Free Strategy Call

chat@gilbertosantos.com

@gilbertopsantosjr

No sales pitch. Just honest technical advice from someone who's built this a hundred times.