Software engineer

Óscar Otero Martínez.

I enjoy building reliable, lasting products — I care as much about how they’re made as what they do.

RoleDev Lead @ ShuttleCloud

Based inA Coruña, Galicia

FocusFull Stack · Platform · AI

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02About

Software engineer with 6+ years working on a B2B email & contacts migration platform — from feature design and system architecture to production, monitoring and direct customer support.

I drive development autonomously, ship fast under tight deadlines, and work side-by-side with key clients (ISPs and ESPs) to turn real needs into product. Strong Python & backend and cloud foundations, an academic background in Machine Learning, and a product-first mindset.

I'm also have advanced knowledge of modern AI dev tools — building real workflows like a custom MCP server and AI agents to automate daily engineering work.

03Professional path

Dev Lead — Migration Platform

2020 — Present

ShuttleCloud · Remote / Madrid

Progressed as Intern → Developer → Dev Lead (2023), becoming the main developer behind the company's core email & contacts migration product. Own technical decisions end-to-end and act as direct technical contact for the most important ISP / ESP clients. Design and maintain a Python microservices platform (Django, FastAPI, REST, RabbitMQ) on Google Cloud, Docker, Kubernetes & Ansible — plus a custom MCP server and AI agents that automate recurring engineering work.

Developer — Farmacias365.com

2024 — Present

ShuttleCloud · Remote / Madrid

Contributor to a Spain-wide finder for 24-hour pharmacies (Vue.js, TailwindCSS, Node.js / TypeScript on PostgreSQL). Picked up TypeScript and server-side Node from a JavaScript base, mentored a new teammate on product and code, and now focus on maintenance and bug-fixing.

Intern Developer

2018

Optiva Media · Madrid

Front-end development internship at a telecommunications consultancy firm.

04Technical skills

Languages

Python

JavaScript

TypeScript

SQL

HTML / CSS

Backend & APIs

Django

FastAPI

REST & microservices

RabbitMQ

Node.js

Frontend

Vue.js

TailwindCSS

Astro

Databases

PostgreSQL

MySQL

SQLite

TiDB

CouchDB

Cloud & DevOps

Google Cloud

Docker

Kubernetes

Ansible

AI & Tooling

Claude Code

MCP servers

AI agents

Machine Learning

outside my daily work

05Education

2014 — 2019

BSc in Audiovisual Systems Engineering

Universidad Carlos III de Madrid (UC3M) · bilingual programme

Final thesis: Machine Learning applied to audio data processing (Python) — grade 9.5 / 10.

2018

International exchange programme

Queensland University of Technology (QUT) · Brisbane, Australia

06Languages

Spanish Native

Native

Galician Native

Native

English C1

Fluent · daily

07Contact

Reach me at oscar.otero.mar@gmail.com.

Email oscar.otero.mar@gmail.com → LinkedIn linkedin.com/in/oscaroteromar → GitHub github.com/oscaroteromar →