$ whoami

Iago Fernández Picos

Backend developer

// 01 Profile

I'm a software engineer focused on backend development. I work mostly with Go and Python, building APIs and services, and I have hands-on experience with search engines on Elasticsearch, from my early days at Empathy.co to today.

// 02 Experience

2024 — 2026 · Bergondo, Spain · hybrid

Software Developer · Prendeluz

  • Built the Go backend of an in-house ERP, on top of MySQL, PostgreSQL and MongoDB.
  • Built in Go the Elasticsearch index backend for Velocraze, a gamified e-commerce marketplace.
  • Built Solver, Velocraze's feature that recommends products based on user-created scenarios.
  • Took part in the architecture decisions for the company's services.
  • Deployments with Jenkins and Docker; Python tooling and a React, Next.js and TypeScript frontend.

2021 — 2023 · Valladolid, Spain · remote

Junior Developer · MadisonMK

  • REST APIs with Python and Flask on MySQL.
  • Database maintenance and update scripts.
  • New features and bug fixes across the stack, including a Vue.js frontend.

2019 — 2020 · Narón, Spain

Junior Search Engineer · Empathy.co

  • Developed and maintained the Elasticsearch index creation and update pipeline.
  • Search engines with Java, Elasticsearch and Apache Solr.
  • Initial project in Python and Flask.

2018 · Pontedeume, Spain

Intern · GT Motive

  • Internship focused on data warehousing.

// 03 Featured project

velocrazevelocraze.com

Gamified e-commerce marketplace, built at Prendeluz. I built the Go backend for its Elasticsearch index and Solver, its product recommendation feature.

  • go
  • elasticsearch