Get in Touch

Need a website, app, or MVP? Let's talk.

info@gexpsoftware.com →

Puerto Jiménez, Costa Rica

info@gexpsoftware.com

© 2026 Marcelo Retana

Who I Am

I'm a Software Engineer and serial entrepreneur who builds modern, high-converting websites, scalable apps, and digital products that drive real business results.

My Approach

I combine deep technical expertise with a keen eye for design. Every site I build is performance-first, SEO-optimized, and engineered for conversions. Every pixel matters, every interaction counts.

I leverage the most modern tools in the industry — Next.js, AI-powered development, and advanced search optimization for both Google and AI search engines like ChatGPT and Perplexity. My sites don't just look good — they generate leads.

My mission? Helping businesses compete with the big players through technology that performs, converts, and scales.

Index

Full-Stack Capabilities

End-to-end ownership — from high-converting interfaces to scalable cloud infrastructure.

Frontend

React

Next.js

React Native

TypeScript

SSR/RSC

Backend

Node.js

GraphQL

REST APIs

PostgreSQL

Redis

Cloud & DevOps

AWS

Hetzner

Coolify

Docker

CI/CD

AI-Powered Dev

Claude Code

Cursor

AI Workflows

Trusted By

Bank of America

IBM

Universal Music

BMW

Mercedes Benz

Pfizer

Univision-Televisa

Provectus

Automation Anywhere

3Pillar Global

Unicorn

Value Creation Labs

Ambit Design

Avodah

Sunrise Hill Glamping

Nature Escapes

Vista3 Architects

IdeADesign Architecture

Softon Digital

MyBasePay

What I Do

10+ years shipping software that works.

7+ yrs

GEXP Software

Founder

Building high-converting websites, web apps, and MVPs for startups and growing businesses. Modern tech stack, performance-first development, and SEO optimization.

6+ yrs

Universal Music Group

Senior Software Developer

Full-stack development with React, Next.js, Node.js, and AWS. Built high-traffic web applications, managed cloud infrastructure, and delivered internal tools at enterprise scale.

4+ yrs

Provectus

Software Engineer

AWS Premier Consulting Partner. Working on AI solutions, MLOps, and cloud transformation projects.

1 yr

IBM

Senior Software Engineer

Built and maintained business process tools using React, Node.js, and IBM Carbon Design System.

4 yrs

Univision-Televisa

Full Stack Developer

Built and maintained high-traffic platforms including Univision.com and TUDN serving millions of users. Next.js, GraphQL, and performance-optimized architecture.

3 yrs

Prodigious Latin America

Full Stack Developer

Full-stack development for Bank of America. Built secure, standards-compliant web applications for one of the largest financial institutions in the world.

Testimonials

What clients say.

Clutch
Their speed and ability to adapt to changes are top-notch. They over-delivered, and operated like an extension of our team.

Clay McIlrath

Founder, Unicorn

5.0

Clutch Rating

5.0

Google Rating

100%

Client Satisfaction

50+

Projects Delivered

Ready to Build Something That Works?

Get In Touch

Whether it's a website, app, or MVP — let's talk about what your business needs.

Location

Puerto Jiménez

Costa Rica

Social

Building The FutureCrafting ExperiencesSolving ProblemsCreating Impact
Building The FutureCrafting ExperiencesSolving ProblemsCreating Impact
Building The FutureCrafting ExperiencesSolving ProblemsCreating Impact
Building The FutureCrafting ExperiencesSolving ProblemsCreating Impact