Jonathan.
Back to site
02 · Projects

Recent work,
in detail.

Own products and enterprise contracts. Pages with a case study are marked with an arrow; NDA-bound projects are shown for reference only.

01
Founder · in development · Case study

ACDEMIC

EdTech SaaS for public-school teachers

Native pedagogical planning, REAC 2026 assessment and Law 8968/PRODHAB compliance. Built from scratch to cut the bureaucratic load on Costa Rican educators.

Stack
  • NestJS
  • Angular
  • PostgreSQL
  • Flutter
02
Freelance · active · dev + brand + social · Case study

Professional Construction

Site and digital presence for a roofing and remodeling contractor in the US

Website for Professional Construction LLC, a roofing (asphalt + TPO), James Hardie siding, gutters and remodeling contractor across DC, Maryland and Virginia. Astro 5 in production + ongoing brand and social media management in the US.

Stack
  • Astro 5
  • TypeScript
  • Tailwind
  • Render
03
Freelance · active · dev + brand + social · Case study

Living Stone Contractors

Site + admin panel so the client manages content

Astro frontend + Express/PostgreSQL backend + admin panel so Living Stone Contractors can manage services, gallery and images without touching code. Cloudinary for CDN, Neon for production Postgres. Deployed on Render.

Stack
  • Astro
  • Express
  • PostgreSQL
  • Cloudinary
04
Dev lead · active · Case study

NetFic Solutions

Tech services company — infrastructure + software development

NetFic Solutions is a company dedicated to delivering technology services. It combines two lines: infrastructure (networks, fiber, CCTV, IP phone systems, electrical, HVAC) and custom software development. I lead the development line and built the institutional site on Astro 5 + Tailwind, deployed on Render.

Stack
  • Astro 5
  • TypeScript
  • Tailwind
  • Render
05
Contract · via IDS · Dec 2025 — May 2026 · Under NDA

Walmart

Mobile app in production

Resolved high-impact tickets on Walmart LATAM's Flutter app. VTEX e-commerce integration, automated UI/regression testing with SauceLabs across device matrices, and pull-request reviews inside a multi-team codebase.

Stack
  • Flutter
  • Dart
  • VTEX
  • SauceLabs
06
Contract · via CentauroSolutions · 2023 — 2025 · Under NDA

BCR

Mobile app redesign for Banco de Costa Rica

Contributed to the redesign of the mobile app for Costa Rica's largest bank. Code reviews and CI/CD pipelines on Azure DevOps inside a distributed team. In parallel, built a condominium management app integrated with AWS services.

Stack
  • Flutter
  • Dart
  • Azure DevOps
  • AWS
07
Contract · Tech Lead · 2024 — 2025 · Under NDA

PriceSmart

Payment integration in an internal LATAM app

As tech lead, drove the integration of RappiPay and Yappi inside an internal Flutter app deployed in Colombia. REST APIs in Node.js connected to Flutter apps used in Panama and Colombia.

Stack
  • Flutter
  • Node.js
  • Express
  • REST APIs
Interested in any of these?

Let's talk about your project.

Quote via WhatsApp or email. Response within 24 business hours.

Back to site