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Available for work · Costa Rica

I build software that turns manual operations into reliable products.

I'm Cristian Solano, a full-stack engineer with 2+ years building scalable platforms and business automation across retail, healthcare, and telecom — grounded in SOLID principles, Clean Architecture, and automated testing.

2+
Years building software
3
Industries served
6+
Shipped products
100%
Typed, tested code
Cristian Solano — CJS logo
Core stackReactTypeScriptNext.jsNode.jsC# / .NETPostgreSQLSupabasePythonAWS
Selected Work

Experience and real projects

Each project has a dedicated case study covering both the business problem it solved and the engineering decisions behind it.

Motorepuestos Arias POS
Retail · Auto Parts

A multi-branch point-of-sale platform engineered as a SaaS product for retail businesses of any size.

ReactTypeScriptSupabasePostgreSQLSupabase Auth+7
Perfume E-commerce Platform
Retail · E-commerce

An all-in-one commerce platform with shared business logic and a fully custom storefront per brand — plus an AI assistant.

Next.jsTypeScriptReactSupabasePostgreSQL+9
Freeway Field Reports
Telecommunications

A React Native app that turns on-site incident reporting into structured, photo-rich PDFs for a telecom support team.

React NativeExpoTypeScriptFirebase AuthFirestore+2
Nursing Home Cariari
Healthcare · Non-profit

A pro-bono care-management system that moved a non-profit elderly home off spreadsheets — later re-engineered on a stronger stack.

ReactTypeScriptViteSupabasePostgreSQL+3

Also on the workbench

Real-Time Chat App
Personal Project

A personal project exploring real-time messaging and video calls with a clean, responsive UI.

ReactJavaScriptTailwind CSSNode.jsVite+4
Skills & Tools

My main technologies

Chosen for reliability and long-term maintainability, from typed frontends to relational data, cloud delivery, and automated testing.

JavaScript

Frontend

TypeScript

Frontend

React

Frontend

Next.js

Frontend

React Native

Frontend

Tailwind CSS

Frontend

TanStack Query

Frontend

Node.js

Backend

Express

Backend

C#

Backend

.NET

Backend

Python

Backend

FastAPI

Backend

PostgreSQL

Databases

SQL Server

Databases

Supabase

Databases

Firebase

Databases

LLM Integration

AI

Ollama · Llama 3

AI

AI-assisted Dev

AI

AWS

Cloud & DevOps

Vercel

Cloud & DevOps

Docker

Cloud & DevOps

CI/CD

Cloud & DevOps

Git & GitHub

Cloud & DevOps

Vitest

Testing

Jest

Testing

Playwright

Testing

About

Who Am I and What do I do?

I'm a Computer Engineering graduate who loves turning tangled, manual workflows into software people can trust.

Over 2+ years I've shipped scalable platforms and automation across retail, healthcare, and telecommunications, from a multi-branch point-of-sale SaaS to a hybrid e-commerce platform with a self-hosted AI assistant. I care deeply about modeling complex business domains and keeping code maintainable long after launch.

I also use AI assistants as a serious engineering tool — pressure-testing design decisions and hunting for weak points, while always staying the one making the call.

How I build

  • Clean Architecture

    Business rules isolated from UI and data.

  • SOLID Principles

    Maintainable, well-structured code by design.

  • Automated Testing

    Vitest, Jest & Playwright across the stack.

Industries served

Retail

POS & e-commerce platforms

Healthcare

Care-management systems

Telecom

Field reporting apps

Contact

Let's build something worth shipping

Have a business problem that needs reliable software, or a role you think I'd fit? I'd love to hear about it.

Contact information

Find me online

Send a message