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Marcelo Ovejero RejonMO

Marcelo Ovejero Rejon

Cybersecurity Specialist Engineer

€300/day
Barcelona, ES
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Marcelo

I am a computer expert with over 10 years of experience in digital forensic analysis applied to legal proceedings and criminal defense. My focus combines technology, science, and justice to solve complex cases, protect rights, and support lawyers and companies with robust technical evidence.

I have intervened in judicial processes where my forensic analysis was decisive in reaching a fair sentence. I also investigate security incidents such as ransomware or unauthorized access, and I prepare solid expert reports that can be ratified in court.

I offer services in forensic analysis (disks, mobiles, networks), data recovery, cybersecurity consulting, incident response, and training for legal and technical teams.

I am driven by a deep conviction: truth needs evidence, and evidence needs committed experts.

Services available:
- Expert reports for judicial proceedings
- Cybersecurity and incident management consulting
- Specialized training in forensic analysis
  • Spanish

    Native or bilingual

  • English

    Conversational

Remote only
Primarily works remotely

Experience

  • Capgemini Cybersecurity Spain
    Cybersecurity Consultant, Incident Response, Forensic Analyst
    September 2023 - Today (2 years and 9 months)
    08019, Woodland Township, NJ, USA
    Address: Avenida Diagonal 199, 08019, Barcelona, Spain Unit or department name: Barcelona Activity or sector: Professional, scientific and technical activities
    Currently a member of the Cybersecurity team at Capgemini Spain, he has solid training and technical skills in information technologies (IT) applied to cybersecurity, as well as in various processes related to the forensic field. Experience in incident response and vulnerability management. In addition, it has extensive experience in training technical human resources in forensic analysis to resolve security incidents.
  • Cybersecurity Agency of Catalonia
    Cybersecurity Incident Response
    October 2023 - May 2024 (7 months)
    8908, Hedingen, ZH, Switzerland
    Address: C. de Salvador Espriu, 45, L'Hospitalet de Llobregat,, 08908, Barcelona, Spain Unit name or department: Barcelona Activity or sector: Public administration and defense; compulsory social security
    As a forensic analyst, I designed a project to evaluate the degree of preparedness against computer attacks in the healthcare field. The objective was to proactively identify vulnerabilities and be prepared for possible incidents, strictly complying with current security standards and regulations. Hybrid and cloud environments were used, as well as various security technologies such as AWS and Azure. At a technical level, pentesting techniques were used to optimize threat intelligence procedures (Threat Hunting) with the Velociraptor tool. Tools such as Elasticsearch and Splunk were used to manage and analyze the data obtained.
  • National Defense University
    Specialist in Cryptography and Telecomputing Security
    February 2015 - October 2016 (1 year and 8 months)
    Argentina
    National Defense University - Address: Maipu 262, C1084ABF, CABA, Capital Federal-Republic of Argentina,

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Education

  • Master's Degree in Cyber Defense
    National Defense University
    Ciberdefensa
  • SPECIALIST IN CRYPTOGRAPHY AND INFORMATION SECURITY
    National Defense University - Republic of Argentina
    2016
    ESPECIALISTA EN CRIPTOGRAFÍA Y SEGURIDAD INFORMÁTICA

Certifications

  • CHFI - COMPUTER HACKING FORENSIC INVESTIGATOR
    EC-Council
    2024
    Cybersecurity Digital Forensic Investigation Trainer Threat Hunting Vulnerability Analysis Incident Management

Skill set (14)

Categories

  • Other