Carlos Bolaño - Calisto

Full Stack Web Developer from Barranquilla, Colombia.
+2 years of experience building modern web, desktop, and mobile products with strong focus on architecture & scalability. Currently leading the web evolution at EvolvePos.

Work Experience

  1. Full Stack Developer (Frontend-focused)

    EvolvePos

    Led the strategic migration of legacy POS software to a scalable web platform built from scratch. Designed a reusable component library using Tailwind CSS and Radix UI, significantly accelerating team development cycles. Architected a cross-platform launcher with Electron.js for automated software distribution.
  2. Artificial Intelligence (AI) Trainer

    Outlier

    Trained AI models to optimize content organization and rewriting, evaluating and improving accuracy in text, audio, and image projects. Provided structured feedback to adjust models for natural language processing, speech recognition, and computer vision.
  3. Freelance Web Developer

    SoftRivus S.A.S

    Designed and implemented custom web solutions, including a poetry blog that increased a client's follower base by 30%. Improved performance of platforms like EDUSAC for SoftRivus S.A.S. using strategies like Conventional Commits and Node.js to optimize development time.
  4. Systems Technician

    Municipal Government of Magangué

    Performed maintenance and repair on over 90 computers, optimizing technical support processes and significantly reducing failures over a 3-month period, ensuring continuous system operation.

My projects

View all
Moodflix - Movie recommendations based on your mood

Moodflix - Movie recommendations based on your mood

  • Next.js
  • TypeScript
  • Tailwind
  • Gemini
An AI-powered movie recommendation app. It suggests movies that match your mood. Created from scratch using Gemini and Next.js.
Jadirh Gonzalez Poems - Poetry Blog

Jadirh Gonzalez Poems - Poetry Blog

  • Next.js
  • TypeScript
  • NextAuth
  • MongoDB
A poetry blog that I designed and developed for a client passionate about writing. Fans can explore, comment on, and like Jadirh's poems. Created and designed from scratch by me.
Travlog - Travel page

Travlog - Travel page

  • HTML
  • CSS
  • JavaScript
  • Astro
Built from a community Figma design, initially designed for desktop. I adapted it for mobile devices and developed it using AstroJS.

My Technologies

HTML

CSS

JavaScript

TypeScript

Astro

React.js

Next.js

NextAuth

ESLint

Tailwind

Node.js

Express

MySql

MongoDB

Git

GitHub

Java

Spring

Electron.js

databases-and-servers/databases/postgresql Created with Sketch.

PostgreSQL

Zustand

ReactQuery

A bit about me

I am Carlos Bolaño, though my friends call me Calisto. I’m a Full Stack Developer with a Product Owner mindset and over 2 years of experience building scalable digital ecosystems. Currently, I lead the strategic web evolution at EvolvePOS, where I architected the migration of mission-critical legacy systems into high-performance web platforms.

My technical edge is defined by a deep mastery of Clean Architecture and SOLID principles. Beyond bridging the gap between complex backends and fluid interfaces, I contributed to the advancement of world-class AI models—including Google Gemini and Meta’s Ollama during my time at Outlier. This unique background allows me to merge traditional engineering excellence with the next generation of intelligent software.

Whether I’m designing cross-platform desktop solutions with Electron.js or launching mobile products like 4xMil, my focus is absolute ownership of the outcome. I don’t just ship features; I solve business problems with engineering precision. From increasing a client's audience by 30% to leading complex software migrations, I build software that is as robust as it is impactful.

Carlos Bolaño - Calisto