Designed architectures and developed the back-end core of MVPs for financial institutions. Led the technical decisions and coordinated a team proposing improvements to the software development cycle

• Designed the architecture and developed the back end of an expense management MVP for financial institutions using NestJS, Solidity and MySQL, defining the APIs and the business logic needed to validate the feasibility of new blockchain-based solutions
• Led the technical decisions and coordinated a team of software developers, QA engineers, and database administrators (DBAs), proposing improvements to the software development process
• Delivered blockchain training sessions and Web3 architectures to various teams across the company

Started MVPs to explore scalable architectures and emerging technologies focusing on building modular, production-ready solutions using a modern stack

• Implemented BullMQ for background job processing, task queuing and handling asynchronous workflows
• Designed and developed back-end systems using NestJS on architectures based on microservices, contributing to validate the feasibility of new business lines and scalable solutions
• Architected NX mono repositories to manage modular services and shared libraries across multiple applications, for reducing the developing and building time
• Prepared containerized services using Docker to support consistent development and deployment processes

Developed backend and frontend systems for decentralized Web3 applications, with a focus on secure payments, API performance, and blockchain interoperability. Contributed to open-source tools and led backend architecture for scalable DeFi platforms

• Liaised with users to resolve bugs and troubleshooting related to XChainJS, contributing to the growth of an engaged developer community
• Created reusable UI workflows collaborating with designing teams workflows using React and Storybook, improving consistency and reducing frontend development
• Implemented the back-end systems for Bitvium using NestJS, MySQL and BullMQ, enabling fiat to crypto transactions through secure Stripe integration and REST APIs
• Built core back-end services for JaDex, a decentralized asset management platform, optimizing transaction flow and API request and response time and reducing data requests by 40%
• Designed and deployed cloud-native components on AWS using serverless architectures and CI/CD workflows to automate the release process
• Led the integration of new chains to XChainJS, an open-source SDK for seamless cross-chain blockchain interactions and created a fallback approach to improve the reliability

Delivered backend integrations, ETL pipelines, and enterprise APIs for clients in energy, retail and healthcare. Focused on scalable, cloud-based solutions using Mulesoft, Informatica, and SQL to ensure secure data flow, system reliability and analytics across large platforms.

• Refined backend architecture using Tibco Mashery to scale client-facing data services.
• Delivered analytics for El Corte Inglés using Golang and GCP, enhancing campaign metrics and user recommendations
• Maintained Oracle ETL workflows for Naturgy, streamlining data extraction and minimizing manual operations
• Automated healthcare ETL processes for IMQ using Informatica Cloud, improving reliability and consistency across different data sources
• Defined Mulesoft APIs for ENEL, enabling secure data exchange across business units and reducing integration time

Designed an IoT-based home monitoring system to detect and prevent risks for elderly individuals. Focused on hardware-software integration, user-defined alerts, and cloud data processing. Project awarded with the TCUE grant in 2018 for innovation in social care.