Belcons Remodeling
Django site and admin panel for a remodeling company in Sunrise. It brings in about 50 quote requests a month.
- Django
- PostgreSQL
- Cloudinary
$ whoami hi, I’m
also known as TrinaxCode
I build websites, apps, local AI, APIs and e-commerce
Full-stack developer in Managua, Nicaragua. Since 2025 I’ve delivered websites, internal systems and apps for real businesses in Nicaragua, Mexico and the US.
Available for a full-time role · remote or on-site · immediate start
About
I learned to code on my own and then through courses from Harvard (CS50W and CS50x) and Stanford (Code in Place). My first pages were gifts for family and friends.
Since 2025 I’ve worked freelance for clients in Nicaragua, Mexico and the United States. I don’t just write the code: I talk with the client, learn how their business runs and stay until it works. At Comedor Doña Chola I set up the waiter tablets and kitchen printers and wrote the cashier guides for the staff.
Outside client work I build my own tools: TrinaxAI, an AI assistant that runs on your computer, and MirrorLab, a virtual camera you control with hand gestures. I work on Linux and use AI agents every day, but every change starts from a spec, a plan and tests.
- Based in
- Managua, Nicaragua (UTC−6)
- Languages
- Native Spanish · C2 English
- Focus
- Full-stack web · local AI
- Looking for
- A full-time role, remote or on-site
How I got here.
2022
My first pages in HTML, CSS and JavaScript, learning on my own.
2023
I started building gifts for my family and making practice websites.
2024
Python, Django and my GitHub account (October).
2025
Finished Harvard’s CS50W and landed my first clients: Belcons, CEDAS, El Jobo and Rednura.
2026
CS50x and Code in Place. Comedor Doña Chola, Shine Coffee, Neotonic, ContaNI and TrinaxAI on npm.
02 Flagship project
An open-source AI assistant that runs on your own computer. You ask it about your documents and code, and it answers with a citation to the file it used, without sending anything to the internet.
- Python
- FastAPI
- React
- TypeScript
- Ollama
- LlamaIndex
03 Work
Client work and my own projects.
Comedor Doña Chola
Point of sale for a 12-table restaurant handling about 150 orders a day. I set up the 4 waiter tablets and 4 thermal printers and wrote the staff guides.
- React
- TypeScript
- Supabase
Private project
ContaNI
Accounting for small businesses in Nicaragua: journal, ledger, VAT, bank reconciliation and month-end close. Over 590 tests, and you can try it without an account.
- Next.js
- TypeScript
- Supabase
Shine Coffee
Online store in córdobas with PayPal checkout, order tracking and a role-based admin panel.
- JavaScript
- Node
- Firebase
CEDAS Montessori
A school website built around enrollment: contact form, FAQ search and prerendered pages for Google.
- React
- TypeScript
- Firebase
Iglesia El Jobo
Church website with events and a gallery, tested with Playwright on phone, tablet and desktop.
- React
- Tailwind
- Playwright
Rednura
A 42-product catalog with guides for 139 conditions, a cart and ordering through WhatsApp.
- JavaScript
- Firebase
Neotonic
Company landing page with SEO, security headers and a script that checks the structured data on every build.
- HTML
- CSS
- Firebase
El Rincón de los Antojitos
Finance dashboard for a food business: daily sales, costs, expenses, profit and accounts receivable.
- React
- Firebase
Private project
04 Stack
What I work with.
Drag to explore · tap one to see where I used it
What I use most
Also worked with
05 Blog
How I build things, in writing.
Case studies of my projects, guides and notes on what I’m learning.
Coming soon
I’m writing the first case studies.
Each one tells the story of a real project: the problem, how I solved it and what I learned. Subscribe and I’ll let you know when the first one is out.
Posts are written in Spanish.
06 Education
Courses and certificates.
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EF SET
English C2
EF SET certificate. Comfortable working in English and Spanish.
November 2026
Verify
- HarvardX Professional Certificate in Computer Science for Web Programming (CS50x and CS50W): expected November 2026.
07 CV
My full CV.
Experience, projects, education and skills. Read it here or download the PDF in English or Spanish.
Availability: full-time, remote or on-site, immediate start
PDF · ES / EN 08 FAQ
Frequently asked questions.
What clients and recruiters ask me most.
Another question?
If it’s not here, write to me and I’ll answer you myself.
Write to meAvailable to start now
AIHow do you work with AI?
I use AI agents every day to move faster, but I don’t let them decide on their own. Every change starts from a spec and a plan, is covered by tests and gets my review before it’s merged. That way I understand, and can maintain, all the code I deliver.
SupportWhat happens after you deliver a project?
I don’t disappear. I keep maintaining what I deliver: the Belcons Remodeling platform and the Doña Chola point of sale, which I installed and still support. Before we start, we define together what the support includes.
RemoteDo you work remotely, and in what time zone?
Yes. I live in Managua (UTC−6), the same time as Mexico City and US Central Standard Time, so I overlap with your working day if you’re in the Americas. I’ve worked this way with clients in Mexico and the US, and I can also work on-site in Managua.
PricingHow do you charge?
It depends on what you need. For a freelance project we agree up front on what is delivered, how long it takes and the price, so there are no surprises. A full-time role we discuss like any job offer. Tell me about your case in the form and I’ll get back to you.
HiringHow can I hire you?
I’m available right away for a full-time full-stack role, remote or on-site, and I still take freelance projects. Email me at trinaxcode@gmail.com, use the form below or reach out on LinkedIn.
StackWhat technologies do you work with?
What I use most: Python, TypeScript, React, Next.js, Django, Node.js, PostgreSQL, Firebase and Supabase, with automated tests in Playwright, Vitest and Pytest. I’ve also worked with FastAPI, Flask, Astro, Docker, GitHub Actions, Vercel, Railway, Ollama and LlamaIndex.
Local AIWhat is TrinaxAI?
It’s an open-source, local-first AI assistant I built. It answers questions about your documents and code with a citation to the file it used, without sending anything to the internet. It runs on Windows, macOS and Linux, installs with npm and is built with Python, FastAPI, React, Ollama and LlamaIndex.
About meWho is TrinaxCode?
TrinaxCode is the alias and personal brand of Huascar Ignacio D Trinidad Arguello: that’s me, a full-stack software developer based in Managua, Nicaragua. It isn’t a company or an agency. I build websites, business systems, online stores and local AI tools with Python, TypeScript, React and Django for clients in Nicaragua, Mexico and the United States, and I created TrinaxAI, an open-source AI assistant.