Hi, I'm Diego Roldan

Computer Science Engineer from Zaragoza, Spain. Great passion for Cybersecurity and Full Stack Development. Focused on building secure, innovative, and efficient digital solutions.

Work Experience

  1. CYBERSECURITY ANALYST icon
    CYBERSECURITY ANALYST
    at nologin
    OCT 2025 - present

    Management and enhancement of the organization’s cybersecurity infrastructure, ensuring the protection of production environments. Configuration and administration of firewalls, VPNs, proxies, and SIEM systems for threat detection, analysis, and incident response. Continuous security monitoring, log correlation, and development of advanced alert mechanisms. Participation in internal audits and forensic analysis to mitigate security threats. Implementation of security policies, network segmentation, and process automation through scripting and monitoring tools.

  2. SOFTWARE DIGITALIZATION ENGINEER icon
    SOFTWARE DIGITALIZATION ENGINEER
    at BSH
    FEB 2025 - OCT 2025

    Developed end-to-end software solutions using Power Platform (Power Apps, Power Automate, SQL, and Power BI) to drive the digitalization of production processes. Led the internal app development initiatives, collaborating directly with plant teams to design tailored solutions for their operational needs. Implemented automated workflows and data dashboards to enhance efficiency and enable data-driven decision-making. Additionally, conducted training sessions to upskill new users and developers in Power Platform.

Write Ups

Here you can find some writeups of Hack The Box machines that I have solved. Open them to see the details of each machine, including the steps I took to solve them, the tools I used, and any challenges I faced along the way.

Tech Stack

Web Projects

  1. REFORMAS LAS CANTERAS icon
    REFORMAS LAS CANTERAS

    Website page for a small kitchen and bathroom reform company. Check their services, projects, and contact them.

Other Projects

  1. RAFT - DISTRIBUTED CONSENSUS icon
    RAFT - DISTRIBUTED CONSENSUS

    A distributed consensus algorithm that ensures that all the nodes in a cluster agree on the same value.

  2. CAR GAME ASSEMBLY icon
    CAR GAME ASSEMBLY

    A car game developed using assembly language. The user-controlled car must avoid touching the moving walls. It also supports 2 players simultaneously.

  3. ALIKE COMPILER icon
    ALIKE COMPILER

    Alike is a programming language similar to Ada. This project compiles Alike language and transforms into intermediate code which can be executed by P-machine.

  4. BETRIS icon

    Given a list of pieces, betris solves the problem of finding a way to fill a given number of rows. Shows visualization of the process.

  5. FLEET-FEAST icon
    FLEET-FEAST

    An android app that helps a restaurant owner to manage their restaurant. Orders and plates can be added, updated and deleted.

  6. RAN - TRAVEL APP icon
    RAN - TRAVEL APP

    A travel app designed to assist older travelers. Users can book activities, tours, and more. Guides can create new activities and chat with users.