About Fernando
I build identity and authentication infrastructure at scale. 8+ years shipping production systems for digital identity verification (Veriff), banking IAM (Santander Global ID), IoT security (Prosegur), and NFC + blockchain authentication (Aurea, own startup). I can work across the full stack: From gathering requirements to support in production. Available for senior software engineering contracts, technical architecture, and fractional CTO engagements.
Spanish
Native or bilingual
English
Fluent
Can work on-site
Madrid (up to 50km)
Experience
- Aurea SolutionCTO & Co-founderJanuary 2024 - Today (2 years and 6 months)Designed and built the complete technical infrastructure for an NFC + blockchain authentication platform as sole technical founder. The system enables physical objects to carry verifiable digital certificates of authenticity using tamper-proof NFC chips bound to on-chain records.Responsibilities: full system architecture, smart contract development (Solidity), cross-platform mobile app (Flutter), backend APIs, cloud infrastructure, CI/CD, NFC hardware integration (NTAG 424 DNA), marketplace development, and B2B infrastructure packaging.Stack: Flutter/Dart, Solidity, TypeScript, Python, Firebase, Node.js, NFC, REST APIs, smart contracts.Status: Live in production with 100+ creators onboarded and commercial operations active.
- delasignCreative Design TechnologistApril 2022 - Today (4 years and 3 months)Serve as consultant and deliver web solutions for all kinds of institutions. Front and backend web development.
- VeriffSoftware EngineerMay 2022 - December 2024 (2 years and 7 months)• • Lead the design, development, and testing of a complex digital identity SAAS product based on face recognition, allowing users to authenticate and create accounts on different platforms taking a selfie.• • Customise the solution to provide enough flexibility to different use cases depending on the vendor requirements, aggregating different verification checks, webhooks and callbacks for each integration.• • Migrate the cropped face images provided by users on the KYC process to different collections and join the face image with information extracted from documents and the custom information provided by each vendor.• • Develop high performance applications based on micro services and message queues to ensure the solution scalability and fault tolerance.• • Create internal and external tools to customise the solution, making easy to create and manage integrations and automate the required data migration.• • Comply with all the quality standards with code linting, automated testing (unit, integration and end to end tests), vulnerability scanning, monitoring and alerting.• • Use a complex tech stack based on Python, TypeScript, React, GraphQL, CircleCI, Docker, Kubernetes, AWS, RabbitMQ, PostgresSQL, MongoDB among others.
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Education
- MB-200 Microsoft Power Platform + Dynamics 365 CoreMB-200 Microsoft Power Platform + Dynamics 365 Core
- Grado en Ingeniería de ComputadoresUniversidad Politécnica de Madrid2018Grado en Ingeniería de Computadores