Security • Easy of use • Nice design

Building secure and friendly systems.

I’m Joaquin Andresen. I design security and platform solutions like threat detection, vulnerability management, hardened infra, and developer with a twist: a nice and friendly interface.

6+ yrsCyber Security

10+Core Techs

∞Curiosity

Companies

Career Timeline

Cyber Security Engineer at Yuno

TOP SECRET

2025 – Present

Cyber Security Engineer at Klar

In charge of creating and executing security controls to pass the PCI DSS v4.0 audit
Implemented CrowdStrike to improve our incident detection
Implemented Tenable (Nessus) to scan for vulnerabilities inside the organization
Implemented AWS Payment Cryptography to replace an old HSM

2024 – 2025

Cyber Security Engineer at Mercado Libre

Main point of reference for the Mercado Pago Control Execution squad
Developed an API to manage vulnerabilities in a more efficient way
Developed an API to centralize metrics of all of our controls
Implemented new controls on companies acquired by Mercado Libre
In charge of presenting evidence for the PCI DSS and CMF audits

2021 – 2024

Cyber Security Analyst at Mercado Libre

Main point of reference for the PCI Control Execution squad
Implemented a DLP agent (Forcepoint)
Built and implemented security standards for Linux and Windows servers on the PCI environment
Developed an API to automate many security controls
Implemented new security controls on the PCI environment
In charge of presenting evidence for the PCI DSS and CMF audits

2020 – 2021

Cyber Security Assistant at Mercado Libre