Technical atlas of a careerVigo · Galicia · Spain

Senior Software Engineer · 10+ years · Fig. 01 · the engineer

JHONMAGDALENA

Full-stack software engineer. Distributed systems, fintech platforms and AI agent architectures, designed and delivered end to end, remotely.

StatusOpen to fully remote contracts_
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GO+REACT+SPRING BOOT+KOTLIN+NODE.JS+TYPESCRIPT+MULTI-AGENT AI+MCP+POSTGRESQL+ANDROID+AWS+PYTHON+WEBSOCKETS+GO+REACT+SPRING BOOT+KOTLIN+NODE.JS+TYPESCRIPT+MULTI-AGENT AI+MCP+POSTGRESQL+ANDROID+AWS+PYTHON+WEBSOCKETS+
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Manifesto

  1. 01

    Ten years writing production software for fintech, banking, stock markets and mobility.

  2. 02

    Genuinely full-stack from the backend kernel to the frontend pixel, never handing off the hard part.

  3. 03

    Agent systems I orchestrate multi-agent AI swarms and MCP servers I write myself.

  4. 04

    Fully remote self-directed, asynchronous, European time zones, minimal supervision.

I started out in a photographic imaging lab and ended up building cloud platforms. What has not changed: I ship systems that hold up in production, and I keep them running.

§02 · Legend

The instruments

◼◼◼◼ expert · ◼◼◼ advanced / proficient · ◼◼ production. Rated by real use in systems that shipped.

Web · Full-Stack

A
  • React.js
  • Node.js
  • TypeScript
  • Angular
  • WebSockets

Backend · Systems

B
  • Java
  • Spring Boot
  • Go
  • Python
  • PHP

Mobile · Devices

C
  • Android · Kotlin
  • Swift
  • RxJava
  • Android TV
  • Wear OS

Data · Cloud

D
  • PostgreSQL
  • MongoDB
  • AWS
  • Docker
§03 · Field log

Stations

Ten years mapped out as a survey route: from the first Android app to the bridge into the cloud.

  1. S-102025 — present

    Directo Digital

    ● active

    Founder & Lead Engineer

    My own engineering studio: production web platforms (Next.js / React), e-commerce, technical SEO and AI agent automation for clients. Architecture and delivery from end to end.

  2. S-092025

    Chita Cloud

    CEO & Founder

    Freelancer-first cloud platform written in Go: deployment automation, monitoring and infrastructure, built and operated remotely.

  3. S-082025

    Divilo Fintech

    Senior Go Engineer

    Go backend development for financial technology infrastructure.

  4. S-072023 — 2025

    Serquo Software

    Senior Software Engineer

    Solid Spring Boot backends, React frontends, automated testing with Selenium and scalable microservices, working in cross-functional teams.

  5. S-062020 — 2023

    Coinscrap Finance

    Software Engineer

    Critical features of a personal finance app in Kotlin: Jetpack, Coroutines, secure API integrations for sensitive data, and mentoring junior developers.

  6. S-052018 — 2020

    Imatia Innovation

    Software Engineer

    Ticketing app for a driverless bus service with QR scanning; cross-platform work in Angular, Kotlin and Swift; Retrofit, Glide and JUnit testing.

  7. S-042018 — 2020

    Wercode

    Founder & Software Engineer

    My own development company for small businesses. A contract generation app in Kotlin, plus projects in Kotlin, Java and Node.js.

  8. S-032017 — 2018

    TXStockData

    Software Engineer

    Android apps (SenseiZero, SenseiTrade, Twibex) charting the stock market in real time with RxJava and live financial data APIs.

  9. S-022016

    TitanVoIP

    Software Engineer

    Android apps in Java, backend services (Node.js, PHP) and responsive web frontends.

§04 · AI layer

I build with agents, not just prompts.

I design AI pipelines from end to end: agent orchestration, tool servers and voice. I work with closed models and with open weights I can host myself.

01 / 3

Agents & Orchestration

  • Claude · Claude Code · Anthropic API
  • Multi-agent systems over a bus
  • Google ADK
  • LangChain
02 / 3

Models & Tooling

  • MCP servers of my own
  • Qwen (Alibaba)
  • Gemma (Google)
  • Self-hosted open LLMs
03 / 3

Voice, end to end

  • Whisper · ASR / transcription
  • Kokoro · open-weight TTS
  • Complete voice pipelines
§05 · Catalogue

Specimens

Full repository · github.com/fredyk
01

WeStack-Go

Framework · Open Source

Scalable backend framework in Go, with RESTful client-server APIs, careful documentation and a community on GitHub. Built and maintained entirely remotely.

  • Go
  • REST
  • Architecture
02 private

Multi-Agent Systems & MCP

AI · Agent infrastructure

MCP servers of my own, plus swarm orchestration over a coordination bus, with specialised agents and open models I can host myself.

  • Claude
  • MCP
  • ADK
  • LangChain
03 private

Android TV Platform

Product · Living room

Personal Android TV platform using the Leanback library, ExoPlayer and bespoke recommendation rows through a ContentProvider, extending WeStack-Go to handle the content.

  • Kotlin
  • Leanback
  • ExoPlayer
04 private

Wear OS Fitness Tracker

Product · Wearable

Activity tracking app for Wear OS with live heart rate and step monitoring, and background processing built on Coroutines.

  • Kotlin
  • Coroutines
  • Sensors
05 private

E-commerce Platform

Product · Web

Commerce platform in React and Node.js, with secure payment gateways and careful work on performance and user experience.

  • React
  • Node.js
  • Payments
06 private

Real-time Chat

Product · Real time

Real-time chat application built on WebSockets, working across platforms with a responsive layout.

  • WebSocket
  • Node.js
§06 · Coordinates

Let’s build
something real.

Open to fully remote contracts. European time zones, asynchronous communication, and systems delivered so that they hold up in production.

[email protected]Write →
github.com/fredykin/jhon-magdalena-vila

Base of operations

Vigo · Galicia · Spain

42.2406° N · 8.7207° W · CET / CEST

Education

  • Higher Technical Diploma in Web Application Development

    IES de Teis, Vigo · 2014 — 2017

  • Technical Diploma in Photographic Imaging

    Escuela de Imagen y Sonido, Vigo · 2011 — 2012

Languages

  • Spanish

    Native

  • English

    Professional

© 2026 Jhon Fredy Magdalena Vila · ED. 2026.1

Colophon: “Blueprint Atlas” design. Typefaces: Fraunces · Hanken Grotesk · JetBrains Mono. Built with Next.js. A one-off design, made to measure.