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"Eager to innovate and contribute to a leading tech company."
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"Eager to innovate and contribute to a leading tech company."

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AdriianFdz/README.md

Hello! I'm Adrián Fernández 👋

🎓 Software Engineer

I'm a passionate Software Engineer with a Bachelor's in Computer Engineering from the Universidad de Deusto, graduating with an 8.9/10 GPA and 14 Honors Distinctions. I have hands-on experience in blockchain deployment, full-stack development, business intelligence, and cloud-native architectures, solving real-world problems with cutting-edge technologies.

I will soon start my MSc in Machine Learning at the University of Deusto, further deepening my expertise in AI and data-driven systems.

Currently working as a Software Engineer at DeustoTech, I contribute to innovative projects in Hyperledger Fabric blockchain architecture, Kubernetes orchestration, and sustainable technology solutions.


💼 Professional Experience

DeustoTech | Software Engineer
Jan 2025 - Present

  • Architected a 10-organization blockchain network on Hyperledger Fabric to replace paper-based green hydrogen certificate workflows, enabling real-time certificate issuance and immutable audit trails.
  • Orchestrated a decentralized network using Kubernetes and Istio, implementing self-healing policies and automated replication to ensure high availability and zero-downtime updates across all nodes.
  • Developed a full-stack platform using React, Node.js and Go to manage digital green hydrogen certificates, bridging decentralized ledger APIs with backend logic to maintain data integrity for stakeholders.
  • Enforced zero-trust security across a 10-org network by configuring mTLS with per-channel certificate authorities and ABAC policies in Hyperledger Fabric, eliminating unauthorized peer access vectors.

Telefónica | Software Engineer Research Intern
Dec 2023 - Jan 2025

  • Engineered an ETL pipeline to normalize competency data from 100+ academic programs and 3,000+ European Occupations, structuring high-integrity datasets for blockchain-based micro-credentialing.
  • Improved energy performance tracking by integrating metrics from 300+ solar panels with historical AEMET weather data, enabling the immediate identification of underperforming assets.
  • Designed interactive Power BI analytics to correlate environmental variables with energy output, providing data-driven insights that identified efficiency trends across renewable assets.

🚀 Technologies & Tools

Languages: Java, Go, Python, TypeScript, JavaScript, C, C++, Kotlin Frameworks: Spring Boot, NestJS, FastAPI, React, Next.js, Django, Hyperledger Fabric Infrastructure: Git, AWS, Kubernetes, Docker, Docker Compose, Istio, Kong Gateway Databases: PostgreSQL, MySQL, Redis, CouchDB, MongoDB, Neo4J
Testing: Grafana k6, JUnit, Mockito, JUnitPerf Concepts: Distributed Systems, REST APIs, Microservices, Container Orchestration, Caching, CI/CD, OAuth2


🛠️ Highlighted Projects

ZonaZurigorri | Next.js, NestJS, FastAPI, Kong, PostgreSQL, Redis
Oct 2025 - Dec 2025

  • Engineered a specialized athlete validation engine based on complex sports eligibility rules, integrating OAuth 2.0 via Google and Discord to enable secure, persistent storage of favorite player shortlists.
  • Reduced a 15s validation bottleneck via a dedicated FastAPI microservice with Redis caching, achieving 5ms response time (3,000× improvement).
  • Implemented Kong API Gateway as a single entry point for authentication and validation microservices, decoupling the frontend from individual service endpoints and simplifying client-side integration

LinkAuto | Java, Spring Boot, PostgreSQL
Mar 2025 - May 2025

  • Architected a RESTful backend using a Controller-Service-Repository pattern to ensure modularity and scalability, streamlining development through Scrum methodology and GitHub Actions CI/CD pipelines.
  • Designed and optimized relational PostgreSQL schemas to ensure data consistency and referential integrity across complex entity relationships, supporting high-concurrency workloads.
  • Achieved 100% unit test coverage and validated system reliability by executing integration and performance benchmarks using JUnit, Mockito, and JUnitPerf to meet backend SLAs.

📂 Explore more projects on my GitHub


🎓 Education

Universidad de Deusto | Bachelor's in Computer Engineering
Sept 2022 - Jun 2026

  • GPA: 8.9/10
  • 14 Honors Distinctions

🌐 Languages

  • Spanish (Native)
  • English (C1)
  • Basque (Intermediate)

📫 Connect with Me

LinkedIn


💡 Looking for a motivated Software Engineer with experience in blockchain, distributed systems, and full-stack development? Let's connect!

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  1. oiercar19/LinkAuto oiercar19/LinkAuto Public

    A social network that connects vehicle enthusiasts to share experiences, showcase their rides, and stay updated on all things automotive.

    Java 3

  2. ZonaZurigorri ZonaZurigorri Public

    La mejor aplicación web para los aficionados del Athletic Club de Bilbao

    TypeScript

  3. H2GO H2GO Public

    Blockchain platform for traceable Hydrogen Guarantees of Origin, built on Hyperledger Fabric.

    TypeScript