03 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
Technical atlas of a careerVigo · Galicia · Spain
Senior Software Engineer · 10+ years · Fig. 01 · the engineer
JHONMAGDALENA
Senior software engineer. Go, payments and critical systems: called in when something that moves money breaks, and it leaves working end to end.
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+
§00
Manifesto
- 01
Ten years writing production software for fintech, banking, stock markets and mobility.
- 02
Genuinely full-stack from the backend kernel to the frontend pixel, never handing off the hard part.
- 03
Agent systems I orchestrate multi-agent AI swarms and MCP servers I write myself.
- 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.
- S-092025 — present
Directo Digital
● activeFounder & 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.
- S-082025
Chita Cloud
CEO & Founder
Freelancer-first cloud platform written in Go: deployment automation, monitoring and infrastructure, built and operated remotely.
- 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.
- 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.
- S-052020 — 2023
Senseizero
Full Stack Engineer
Stock market investment platform running through Abanca's online broker. Some twenty Go microservices over gRPC, with Docker and Drone CI, the fraud detection engine among them; an EKS cluster on AWS with ArgoCD, Helm and Prometheus; and westack-go, my own framework, in the core of a critical piece.
- S-042018 — 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.
- S-032018 — 2020
Wercode
CTO & Co-Founder
My own development company for small businesses. A contract generation app in Kotlin, plus projects in Kotlin, Java and Node.js.
- S-022017 — 2018
TXStockData
Software Engineer
Android apps (SenseiZero, SenseiTrade, Twibex) charting the stock market in real time with RxJava and live financial data APIs. Brokerage account onboarding against DriveWealth, with identity verification and a live session handed off from desktop to mobile.
- S-012016
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
Full repository · github.com/fredykSpecimens
04 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
05 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
06 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
07 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 · CoordinatesLet’s build
Let’s build
something real.
Available full-time, remote. European time zones, asynchronous communication, and systems delivered so that they hold up in production.
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.