Senior software engineer — Barcelona, Spain

I orchestrate software with a team of agents

Ten years building production systems. An early, heavy adopter of AI-augmented engineering — who still owns every architecture decision.

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  1. spec
  2. plan
  3. build
  4. review
  5. ship
  • 10+ years
  • founding engineer ×2
  • React · Next · Node · Python
Get in touch

About

I’m a full-stack engineer with over ten years of shipping production software — usually as the person who owns the architecture, not just the tickets. Three times a founding engineer. Once, the sole engineer rewriting a live platform for BMW and Telekom. The throughline is ownership: I embed in the product and the business, not only the codebase.

For the past three years I’ve worked the way I think most senior engineers soon will — directing a system of agents. Claude Code, the Claude API, MCP tooling, and orchestrated agentic workflows aren’t a side experiment; they’re how I plan, build, and review. I hand off the mechanical work and spend my judgement where it actually matters: architecture, product, and the calls a model shouldn’t make alone.

Underneath it all: React, Next, Node, Python, and cloud infrastructure I provision as code. I move fast in fast-paced rooms, talk plainly with everyone from C-level to end users, and care about the craft — performance, accessibility, and code the next person can actually read.

Selected work

Three builds where I owned the architecture and shipped the whole thing.

Longevix Founding engineer, 2025 to present

A longevity platform, from an empty repo

React Native, Expo, Real-time, AI nutrition, Wearables.

Architected and built a cross-platform health & longevity coaching platform from zero — real-time training logging and chat, AI-powered nutrition tracking, and wearable integrations. I owned technology and architecture, shaped product and design, and led the engineering team, working directly with everyone from C-level to end users.

A phone showing a live training log with the third set being logged, an AI-scanned meal in a nutrition ring, and a coach chat; a smartwatch beside it shows heart rate.

Allgeier Engineering for Sole engineer, 2025

A BMW & Telekom platform, rewritten solo

React, FastAPI, Log parsing, Realtime viz, Automotive.

Rewrote a network-intelligence platform for BMW and Telekom from scratch, migrating a legacy Angular + Python + C++ system to a modern React + FastAPI codebase. I owned every architecture decision and delivered it end to end — including the automotive log-parsing layer — shipping live GPS, signal, latency, and call-state visualizations.

An in-car display showing a map with a GPS trace and a live position, beside signal, latency and call-state readouts; a strip of parsed log lines feeds out from under it.

Founding engineer, 2023 to 2025

An AI automations platform, zero to production

React, Python, Node, AI automations, Team lead.

Built an AI automations platform from zero to production — a React front-end on a Python/Node back-end — and laid the architecture the engineering team scaled on. I led the team, setting the bar for best practices, collaboration, high performance, and code quality.

The Faktory app: three AI co-workers on the Overview (Moneypenny, a personal researcher; Edison, a data scientist; Buzz Daly, a news anchor), the Collection, Transformation and Application pipeline, and a list of what each is doing now, with one task running; behind it, Moneypenny's profile with a Hire button.

Experience

  1. Longevix

    Lead Software Engineer

    to present

    New York, USA Remote

    • As founding engineer, architected and built a cross-platform health & longevity coaching platform from zero — real-time training logging and chat, AI-powered nutrition tracking, and wearable integrations.
    • Embedded in the product and business as much as the code: owned technology and architecture, shaped product and design, led the engineering team, and worked directly with everyone from C-level to users.

  2. Allgeier Engineering

    for

    Lead Software Engineer

    to

    Munich, Germany Remote

    • As sole engineer, rewrote a network-intelligence platform for BMW and Telekom from scratch, migrating a legacy Angular + Python + C++ codebase to a modern React + FastAPI codebase.
    • Owned every architecture decision and delivered the full application end to end — front-end, back-end, and automotive log-parsing layer — shipping live GPS, signal, latency, and call-state visualizations.

  3. Faktory.com

    Lead Frontend Engineer

    to

    New York, USA Remote

    • As a founding engineer, built an AI automations platform from zero to production — a React front-end and a Python/Node back-end — laying the architecture the engineering team scaled on.
    • Led a team of engineers, promoting best practices, collaboration, high performance, and code quality.

  4. Doctor.com

    for

    Senior Fullstack Engineer

    to

    New York, USA Remote

    • Built custom embeddable widgets in Vue and a no-code tool for the pharmaceutical industry, cutting delivery time by 50% and removing manual workflow bottlenecks that drove project cost.
    • Trained non-technical staff to drive and ensure successful adoption and company-wide usage.

  5. Studio Hakuna

    for

    Semi-Senior Frontend Engineer

    to

    London, UK Remote

    • Improved and maintained charity platforms while building reusable cross-project plugins and tools.
    • Ran the iterative, incremental migration of legacy vanilla JavaScript/PHP features to React.

  6. Advanced Technology Solutions

    for

    Semi-Senior Fullstack Engineer

    to

    Milan, Italy Remote

    • Built a FinTech platform from scratch, contributing across front-end, back-end, and database layers.
    • Built proofs of concept with emerging technologies for the R&D team to keep the company ahead of market trends.

  7. Trimix

    Semi-Senior Fullstack Developer

    to

    Córdoba, Argentina Hybrid

    • Contributed to a governmental security software platform, designing and delivering microservices and database queries, while leading efforts to improve front-end responsiveness and performance.

  8. eKeepOIT

    Junior Frontend Developer

    to

    Córdoba, Argentina Remote

    • Built and shipped client-facing interfaces, growing into ownership of front-end features end to end.

  9. Freelance

    Web Developer

    to

    Córdoba, Argentina Remote

    • Designed and built websites and web apps for clients end to end — the through-line that started the whole run.

Skills

Core stack

What I build with, daily.

  • TypeScript
  • JavaScript
  • React
  • Next
  • Vue
  • React Native
  • Expo
  • Node
  • Nest
  • Python
  • FastAPI
  • SQL

AI tooling

How the work gets orchestrated.

  • Claude Code
  • Claude API
  • OpenAI Platform
  • MCP
  • Agentic workflows
  • Prompt engineering

Infrastructure

Where it ships and how it stays up.

  • Terraform
  • Pulumi
  • AWS
  • GCP
  • Vercel
  • Cloudflare
  • Docker
  • GitHub Actions
  • CI/CD

Education & certifications

  1. Software Engineering

    National Technology University

    UTN FRC, Argentina 2012 – 2018

  2. Project Management Professional Certificate

    Google — Coursera

    Online 2024 – 2026

  3. English Instruction Program

    I.I.C.A.N.A.

    Argentina 2007 – 2013

Let’s build something

I’m open to senior and lead engineering roles where I can own architecture and ship. The fastest way to reach me is email.

Email me LinkedIn GitHub Résumé

Ricardo Vadalá, Barcelona, Spain

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