09/21/2026 updated
100 % available
Head of Engineering | AI Architect | Backend Lead Engineer
Murcia, Spain
Worldwide
MSc Materials Science, Universidad Complutense de Madrid, 2008About me
Hands-on Head of Engineering & AI and Backend Architect with 12+ years building high-throughput distributed systems, production LLM/AI workflows, and robust cloud architectures. Experienced leading distributed engineering teams for enterprise and fast-moving startups.
AI AgentsRustAugmented RealityPython (Programming Language)BlockchainTensorFlowSmart ContractsAzure Machine LearningNext.jsRust (Programming Language)Data SciencePyTorchReact.jsBackendAWS ECS
AI & Machine Learning
Proficiency in PyTorch, TensorFlow, Deep Learning, Data Science, FastAPI, Scikit-learn, and AI Act compliance. Development of ML pipelines and AI-powered analytics systems using Python, PyTorch, and AWS.
Rust & Systems Engineering
Deep expertise in Rust for building high-throughput Bitcoin transaction engines and L1/L2 infrastructure. Author of btc-risk-lab, a Rust CLI for explainable Bitcoin risk analysis published on crates.io.
Frontend Development
Strong command of React, React Native, Next.js, Astro, Unity3D, and AR (Augmented Reality) for building modern web and mobile frontends.
Backend & Cloud
Hands-on experience with Node.js, FastAPI, GraphQL, AWS, PostgreSQL, MongoDB, and Redis for scalable backend and cloud architectures.
Blockchain & Web3 Development
Expertise in Bitcoin network, Lightning, Ethereum, L1/L2 infrastructure, Smart Contracts, DeFi, NFTs, Hardhat, and The Graph. Delivery of DeFi protocols using Solidity and Hardhat, NFT platforms, and smart contract audits for blockchain-native startups.
Mobile Development
Delivery of 10+ native Android (Kotlin/Java) and iOS (Swift) apps as well as cross-platform and AR experiences for brands in automotive and retail.
TypeScript & JavaScript
Extensive use of TypeScript and JavaScript across full-stack product development, including open-source tools such as ai-act-diagnosis-bot built with Astro/TypeScript.
Engineering Leadership
Team management, roadmap planning, investor relations, and Agile/Scrum practices. Led cross-functional engineering teams across US and European time zones.
Java & C# Enterprise Development
Development and maintenance of enterprise backend systems for insurance and financial services clients, including release management and CI/CD adoption for banking clients.
C++ & Computational Physics
Use of C++ for custom renderers in real-time AR on mobile devices and for computational physics simulation software developed during academic research.
Experience
Professional experience10+ years
Freelancer since2011
Languages
EnglishFluentSpanishNative speaker
Project history
Teaching Bitcoin at the protocol level covering script, consensus, Lightning, and custody design. Designed and delivered a graduate-level course on Bitcoin core technology and adjacent systems. Authoring teaching materials adopted in additional Spanish universities.
Delivered 50+ projects for clients in fintech, gaming, e-commerce, healthcare, and Web3 across Europe, USA, and LATAM. Built DeFi protocols, NFT platforms, and smart contract audits. Developed ML pipelines and AI-powered analytics systems using Python, PyTorch, and AWS. Shipped 10+ native Android/iOS apps and AR experiences for brands including automotive and retail.
Led engineering team building Rust-based infrastructure bridging Bitcoin L1 and L2 networks. Drove architecture decisions for a high-throughput Bitcoin transaction engine, reducing latency by 40%. Managed investor relations technical due diligence and product roadmap with CEO. Recruited and mentored a cross-functional team across US and Europe time zones.