Curriculum Vitae

About Me

Cloud Data Automation Developer | AWS Certified Cloud Developer | Python, SQL, ETL

AWS Certified Developer with over 10 years of experience in data-intensive environments, specialising in building autonomous, scalable cloud pipelines. I focus on transforming manual data processes into streamlined Python-based automation and intelligent workflows utilising LLMs and AI Agents. From completing the Cloud Resume Challenge (full-stack IaC) to managing complex ETL systems, I leverage AWS and cloud-native services to deliver efficient, end-to-end data solutions.

Summary

1. Cloud data automation developer with a strong background in Python and SQL, building reliable data pipelines and automation solutions in cloud environments.
2. AWS Certified (AWS Certified Developer Associate) with hands-on experience designing and maintaining ETL workflows, CI/CD pipelines and cloud-native services using AWS and Terraform.
3. Over 10 years of experience working with data-intensive systems, with a current focus on automation, scalability and reducing manual operational work.
4. I completed the Cloud Resume Challenge delivering a fully automated, infrastructure-as-code solution from frontend to backend as a practical cloud engineering exercise.
5. Native English speaker with over 20 years professional experience working in Barcelona.

Work Experience

Technical Analyst (Data Automation & Cloud) | Dow Jones | Dec 2024 - present

Working within the Data Intelligence & AI Governance team, I design and build Python-based automation, ETL and web data extraction systems to support large-scale analysis of financial and news data. My work includes maintaining and improving extraction pipelines, developing internal automation tools, creating SQL-based reporting solutions, and prototyping AI-driven workflows using LLMs to improve data analysis and operational efficiency.

Product Analyst | OLX Group | Mar 2022 - June 2024

Designed and implemented Python-based monitoring and ETL pipelines using SQL, GitLab and Jenkins, including automated alerting to surface data issues and operational insights. Developed real-time Tableau dashboards to replace manual reporting workflows.

Business Intelligence Analyst | letgo | Jun 2021 - Mar 2022

Analysed big data datasets using SQL and CleverTap to support complex business questions and decision-making. Collaborated with stakeholders to build self-service Tableau dashboards, improving data accessibility and reducing ad-hoc reporting requests.

Trust & Safety Business Rules Analyst | letgo | Jun 2019 - Jun 2021

Analysed Trust & Safety rule performance using Python and SQL, supporting rule creation, optimisation and automation. Led anti-fraud initiatives, applying machine learning techniques with PyTorch to detect prohibited content in user uploaded images.

Trust & Safety Fraud Investigator | letgo | Jan 2018 - Jun 2019

I was involved in the complete rule development lifecycle, encompassing data analysis, rule creation, and performance analysis. Using SQL I examined big data within Redshift databases to identify suspicious activity in user listings and interactions. Additionally with an aim to delve into advanced projects, I began learning and using Python.

Customer Care Analyst | letgo | Sept 2015 - Dec 2017

I conducted reviews of user-generated content to ensure adherence to policies, while also providing user assistance via email and social media channels. Additionally, I controlled the analysis of CSAT and NPS reports.

Senior Technical Analyst | Colt Technology Services | Oct 2009 - Oct 2013

I assessed intricate B2B data network orders for technical compatibility and contributed to coordinating educational campaigns, both locally and online for >1000 employees spanning multiple time zones.

Technical Support Analyst | Colt Technology Services | Oct 2006 - Oct 2009

I served as the initial point of contact for B2B clients encountering technical challenges on multi-site ethernet data networks, offering initial support and coordinating issue resolution with senior network technicians when required.

Technical Skills

Cloud Resume Challenge

The aim of this project was to get practical, hands-on experience using AWS by creating an app and workflow that counts page visits to a website and then updates and returns a value from a database, displaying that value on the webpage, essentially a front-to-backend, static website with a visitor counter.

This setup was then later fully configured using Terraform and GitLab CI.

With this project I was not following a course, there were no step-by-step instructions, instead there were some high-level objectives that I had to figure out and achieve.

The Cloud Resume Challenge offers a practical platform for aspiring cloud professionals to tackle real-world scenarios encountered in cloud-related roles. Participants engage in activities including building a resume website and configuring CI/CD for automated deployments.

This webpage page is the frontend result of the project, the visitor counters can be seen below.

<< Click this image to see the backend architecture of this resume site. Here you can see how the AWS services all fit together and how I have used other cloud technologies to deploy it as a service.

I have documented my learnings from the Cloud Resume Challenge (coding_clouds) on dev.to with the following posts:

Courses & Certification

• AI Agents with CrewAI, O’Reilly | 2026
• 5-Day AI Agents Intensive Course with Google, Google Cloud | 2025
• Learn AI Agents, Coursera | 2025
• Introduction to Vertex AI Studio, Google Cloud | 2025
• Retrieval-Augmented Generation (RAG) with Embeddings & Vector Databases, Coursera | 2025
• Web Scraping with Scrapy, O’Reilly | 2025
• Scrapy Web Scraping Tutorial, O’Reilly | 2025
• Attention Mechanism, Google Cloud | 2025
• Encoder-Decoder Architecture, Coursera | 2025
• Python Data Extraction, O’Reilly | 2025
• Hands-On Essentials: Data Engineering Workshop, Snowflake | 2024
• Hands-On Essentials: Data Warehousing Workshop, Snowflake | 2024
• Terraform for AWS, Udemy | 2023
• AWS Technical Essentials, AWS Skill Builder | 2023
• CERTIFICATE: AWS Certified Developer Associate (AWS Credly verification) | 2023
• AWS Certified Developer Associate training, Udemy | 2023
• Git for GitLab projects, Udemy | 2022
• Statistics for Business Analytics & Data Science, Udemy | 2022
• The Complete Hands-on to Apache Airflow, Udemy | 2020
• Python for Data Science & Machine Learning, Udemy | 2019
• SQL Bootcamp | 2018

View all my verified credentials on Credly Badge Wallet.

Visitor Counters

(To demonstrate AWS backend)

• - Hit counter
  (Overall number of page loads)
• - Distinct sessions
  (Based on browser session data (secure sha256 hash))
• - Active sessions
  (Distinct sessions within last hour)