Backend · Applied AI · Infrastructure

I build AI integrations and high-performance backends for systems that can't afford to fail.

I'm a backend engineer at a US fintech, and I've worked on critical systems since 2012. I help companies connect their data to AI and scale their infrastructure without downtime.

Services

Three ways to work together

Clearly scoped, fixed-price projects. If I don't know how to solve your problem, I'll tell you on the first call.

01 · Core

AI integration

I connect language models to your data, APIs, and workflows, with control over what information leaves and who gets to see it.

  • MCP servers so AI assistants can use your product
  • Agents and automations on top of your existing systems
  • Search and answers over your internal docs

A good fit if you want your product or team to get real value from AI without rebuilding from scratch.

02

Backend and APIs

I design and build services that handle real traffic, stay maintainable, and don't wake you up at 3 a.m.

  • API design and service architecture
  • Performance diagnostics and bottleneck hunting
  • Code and architecture reviews

A good fit if your system grew faster than its architecture, and it shows.

03

Data and infrastructure

Reliable databases and Linux servers. I learned to migrate systems without shutting them down by replacing nodes in a live telecom network.

  • Query and data model optimization
  • Planned, zero-downtime migrations
  • Server, backup, and monitoring audits

A good fit if your database is slow, fragile, or nobody dares to touch it.

How I work

No surprises, start to finish

Every project follows the same path, so you always know what's being done and what comes next.

  1. Diagnosis

    A free 30-minute call to understand your system and the real problem.

  2. Proposal

    Scope, deliverables, timeline, and a fixed price, in writing, within 3 days.

  3. Build

    Weekly progress you can actually test, not just status reports.

  4. Handoff

    Documentation and a session with your team, so the system is fully in their hands.

About

From equations to critical systems

  1. 2008Ibero-American Mathematical OlympiadRepresented Honduras
  2. UNAHElectrical Engineering, with honorsSelf-taught programmer since age 14
  3. TelecomCritical network systemsLed the replacement and integration of core nodes
  4. RemoteInternational technical supportAutomating what others did by hand
  5. NowBackend engineerUS fintech, product used by millions

Representing Honduras at the Ibero-American Mathematical Olympiad taught me to enjoy the problems other people would rather avoid.

I studied Electrical Engineering, but I never stopped coding. I started at 14 out of curiosity and kept at it as a hobby for years, while graduating with honors and starting my career in telecommunications.

In telecom, I led the replacement and integration of the core nodes of a network that couldn't go down. That's where I learned what "critical" really means: every change is planned, tested, and comes with a rollback plan.

Later I moved to a remote role with an international provider. I used code to solve in minutes what took hours, and that confirmed where I wanted to go. I made the jump to software development by proving in technical assessments what I had been practicing for years, and I've been building backends for products used by millions of people ever since.

Today I combine both schools, the rigor of systems that can't fail and the speed of modern software, to help companies get real value from AI.

Projects

What I build on my own

Products I design, build, and run end to end. It's the same way I work on client projects.

Own product · live

DaUnDetalle

Digital gifts that open like a surprise. Pick a wrapping, write a message, and send it over WhatsApp. Free, no sign-up. A Spanish-language app for people in Honduras and abroad.

  • SvelteKit frontend on Cloudflare Workers
  • Go API on Google Cloud Run, backed by Postgres
  • Automated tests before every backend deploy
  • Usage analytics to decide what to improve next

What it shows: from the first line of code to launch in under a week, and running in production ever since.

DaUnDetalle's home page on a phone, in Spanish: a headline about a gift that opens like a surprise, and a button to create one

Contact

Got a system that needs AI, speed, or stability?

Tell me what you're building. On the first call we'll go over your case, and I'll tell you honestly whether I can help and how.

LinkedInin/varmijog3 (opens in a new tab)
LocationHonduras · remote, US hours