Freelancer profile translated to English.

Description

I am a computer engineer with experience in process automation, backend development, and cybersecurity. I help companies save time, reduce errors, and improve security through well-designed and maintainable technical solutions.

I primarily work with:

n8n for workflow automation (Gmail, Google Calendar, APIs, CRMs, internal systems)

Python for scripts, integrations, data processing, and advanced automation

Java for backend, distributed systems, RMI, APIs, and business logic

Applied Cybersecurity: secure design, access control, data validation, risk reduction in automations and services

What kind of problems I solve:

Automation of email management, appointments, and internal processes

Integration between tools (Google, REST APIs, proprietary systems)

Reliable and maintainable backends

Secure automations, without exposing data or creating security holes

Cleaning up and improving existing poorly automated systems

My approach:

I understand the business problem, not just the technical part

Clear code, without fragile solutions

Automations designed to scale and be maintained over time

Direct and straightforward communication

If you need to automate processes without losing control or security, or reinforce an existing system with a solid technical foundation, I can help.

Languages

English
Native or bilingual
Spanish
Native or bilingual

Workplace preferences

Can work on-site

Madrid (up to 50km)

Deloitte
Programmer
November 2024 - Today (1 year and 7 months)
in the Cyber Identity Access Management team. (Robotic Process Automation) developer using the UiPath tool. Experience in developing Frontend projects for individuals using HTML, CSS, JavaScript, and frameworks such as React. Completed Backend projects in languages such as Java (Spring Boot), Python, C, C++, Bash, SQL, and API management. Strong proficiency in Windows and Linux, having used distributions such as Ubuntu, Parrot, Arch, and Kali Linux. Experience with IBM z/OS Mainframes, including developing programs in REXX, handling JCL, COBOL, DB2, CICS, and system tools for data management and analysis.
Ubiquity S.,
Tester
October 2025 - November 2025 (1 month)
Conducted voice recognition tests for the company working on testing a production car for Chery. Tasks included executing functional tests and using ADB tools to capture and export logs. successfully completing over 500 tasks involving system prompt engineering, failure generation, and response refinement across domains such as programming, mathematics, summarization, and general reasoning Successfully completed over 50 usability tests for UserTesting.
Outlier AI,
AI Language Model Trainer
December 2024 - Today (1 year and 6 months)
AI Language Model Trainer at Outlier AI, successfully completing
over 500 tasks involving system prompt engineering, failure
generation, and response refinement across domains such as
programming, mathematics, summarization, and general reasoning