About

Work Experience

• Senior Backend Software Engineer, Dataships

  Dec, 2024 - Jul, 20257 months

  Develop and maintain systems that connect to Shopify and marketing platforms like Klaviyo and Yotpo to provide customers a compliant solution to maximize their marketable audience.

  • Built modular abstractions for marketing platform integrations, enabling faster addition of new platforms and supporting product growth.

  • Designed and implemented a scalable policy management service using Twig templates, significantly improving system reliability.

  • Contributed to a large Symfony-based API serving multiple clients (internal tools, Shopify app, external integrations).

  • Maintenance of a React application for customers to administer their account and audit the marketability of their audiences.

• Senior Backend Software Engineer, Vectary

  Jun, 2021 - Jul, 20243 years 1 month

  Redesigned core backend architecture by replacing a microservices cluster with a unified GraphQL API, improving response times from minutes to under 10 seconds for complex operations.

  • Reduced infrastructure costs from ~€50K/month to ~€7K/month (~85% reduction) by migrating from EFS to S3 and redesigning data storage architecture.

  • Designed and implemented a new PostgreSQL schema with full-text search (TSVector/TSQuery), improving search performance and enabling new product features.

  • Implemented a PostgreSQL-based versioning system using triggers, history tables and high-performance queries using ARRAY_AGG and COALESCE to efficiently reconstruct past states of data.

  • Replaced a distributed microservices/SQS-based system with a real-time GraphQL API, simplifying architecture and improving reliability.

  • Built scalable infrastructure using AWS ECS, S3, and Aurora capable of handling 20–30× the expected load.

  • Implemented and maintained CI/CD pipelines using Bitbucket and container-based deployments

• Full Stack and Systems Engineer, Lácteos Martínez

  Nov, 2020 - Dec, 20211 year 1 month

  Designed and implemented a custom SCADA system using Rust, replacing a 20-year-old legacy solution.

  • Built low-level services communicating with industrial PLCs (Omron) via UDP.

  • Designed time-series data storage using TimescaleDB for efficient aggregation and querying.

  • Delivered real-time monitoring dashboards using D3.js.

• Lead Web Software Engineer, Ludei

  Aug, 2015 - Feb, 20193 years 6 months

  Led technical direction of the Cocoon.io web platform as the sole frontend engineer, owning architecture and delivery.

  • Built and maintained cross-platform build systems in Node.js. Targeting macOS, Linux, and Windows.

  • Develop and maintain the new compiler in Node.js/Typescript which had to run on MacOS, Ubuntu and Windows 10. Open sourced at https://github.com/CocoonIO/cocoon-compiler.

  • Aid on the development of the Atomic Plugins. Libraries that abstracted features of different Operative Systems to be usable in web applications. Open sourced at https://github.com/ludei/atomic-plugins-ads.

  • Develop the isomorphic SDK of Cocoon.io for the browser and Node.js. Open sourced at https://github.com/CocoonIO/cocoon-cloud-sdk.

Projects Experience

• Homelab Server

  Jan, 2020 - Present

  Designed and managed a multi-server homelab environment running virtual machines and containerized services to serve all the members of the family.

  • Configured networking, DNS, and virtualization (KVM, QEMU, libvirt).

  • Hosted services including media systems, security (NVR), and internal infrastructure tools.

  • Implemented storage, backup, and redundancy strategies to ensure data reliability.

  • Maintained an observability stack of Grafana, Prometheus, Loki, Alloy and cAdvisor.

• UPV/EHU Project: The Secret Life of Words

  Nov, 2019 - Sep, 202010 months

  Usage of machine learning and word embeddings technologies to implement a tool to aid health professionals in decision making.

  • Replication of the YerevaNN benchmarks for the MIMIC-III dataset.

Skills

Education

Volunteer Work

References