JcDev Solutions

About

Senior software engineer. Eleven years shipping.

I'm a senior software engineer based in San José, Costa Rica, working with teams across the US, Europe, and Latin America. I started writing production code in 2015 and have spent most of the last decade either shipping full-stack applications end to end or leading the engineers who do.

I work across the whole stack — back-end systems in .NET Core 8 and Node.js, front-end in Next.js, Angular, and React, mobile in React Native, and AI features woven through the workflow via prompt engineering and tooling I built for the team. I hold a Google AI Professional Certificate (August 2026).

For every application I build, I can also host it — on cost-predictable self-managed infrastructure instead of AWS, GCP, or Azure. The stack is Coolify on a VPS, Postgres or MySQL on Neon, open-source monitoring, and transactional email via Resend or SendGrid. Flat monthly invoice, no billing surprises.

I write code. I review code. I lead architecture reviews. I sit in standups. Whatever the engagement needs.

Location

San José, Costa Rica · Available worldwide

Languages

Spanish (native) · English (C1)

AI workflow

AI tooling isn't a feature I bolt on — it's woven through how I ship. Production AI features, prompt engineering, model evaluation, and the deployment plumbing that makes it reliable in production.

Infrastructure

Self-managed hosting on cost-predictable infrastructure. No hyperscaler billing surprises — flat monthly cost, boring in the good way, and operated by someone who wrote the code.

VPS provider
Hetzner, DigitalOcean, Contabo, or similar — your choice based on region and price.
Orchestration
Coolify — self-hosted PaaS for Docker-based application deployments.
Database
Postgres or MySQL on Neon.com with managed backups.
Monitoring
Open-source self-hosted: Uptime Kuma, GlitchTip, or a comparable alternative.
Domain + email
DNS configuration and transactional email setup for Resend, SendGrid, or similar.

Tech stack

Languages

  • C#
  • TypeScript
  • JavaScript (ES6+)
  • SQL
  • HTML5
  • CSS3/SCSS

Front-end & Mobile

  • Next.js
  • React
  • Angular
  • React Native
  • Svelte

Back-end

  • .NET Core 7/8
  • ASP.NET Core
  • Node.js
  • Express
  • NestJS

AI & Automation

  • Prompt Engineering
  • Generative AI Tooling
  • AI App Building & Deployment

Databases

  • PostgreSQL
  • MySQL
  • SQL Server
  • MongoDB
  • Neon

Hosting & Infra

  • Coolify
  • Hetzner
  • DigitalOcean
  • Contabo
  • VPS

Monitoring

  • Uptime Kuma
  • GlitchTip

Transactional email

  • Resend
  • SendGrid

Tools & Methods

  • Agile/Scrum
  • TDD
  • CI/CD
  • API Design
  • Git

Experience

  1. Senior Software Developer

    NearShore Tek

    Architecting and maintaining high-traffic web applications for international clients using Next.js, Angular, and .NET microservices. Technical lead on system modularity, code review standards, and mentoring junior developers.

  2. Freelance Full-Stack Developer

    Independent Consultant

    End-to-end development for a global client portfolio. Custom enterprise web apps in Next.js and Angular, mobile apps in React Native for iOS and Android, and backends in .NET Core 7 and 8.

  3. Software Developer

    SicSoft

    Agile environment building enterprise desktop and web applications. Implemented TDD workflows that reduced production bugs and led legacy code modernization across older codebases.

Education

BSc Computer Engineering

Graduated 2012

Universidad Internacional San Isidro Labrador (UISIL)

Certifications

Google AI Professional Certificate

August 2026

Google / Coursera

Eight specialized courses across Generative AI for brainstorming, data analysis, app building, deployment, and rapid prototyping.

Credential ID: N2BDBTW8GBZR

Have a problem worth solving?

Book a 30-minute discovery call. No prep needed — just an honest conversation about what you're working on.

Book a call