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Onyalan Silva Almeida mrced

10+ years in IT | Specializing in cybersecurity & digital forensics | Real-world forensic investigation | Python security automation

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mrced /README.md

Onyalan Silva Almeida

Digital Forensics | Cybersecurity | Python Security Automation

IT professional with 10+ years of experience in technical support, infrastructure and operations, now specializing in cybersecurity and digital forensics. My portfolio combines a real-world private forensic investigation with hands-on development of security automation in Python.

Based in Brazil and open to remote opportunities with international teams.

Featured work

An anonymized investigation I conducted in a private professional capacity, examining an iOS device and a Windows 11 workstation following a reported threat of sensitive-content disclosure.

  • Used FTK Imager, Autopsy and iLEAPP for acquisition, disk analysis and iOS artifact parsing.
  • Preserved original evidence and verified integrity with SHA-256.
  • Correlated email, messaging and file-system artifacts to reconstruct a timeline.
  • Documented findings and limitations, distinguishing preparatory activity from confirmed transmission.

Read the case and investigative limitations

A security auditing product evolving from a modular Python scanner and Streamlit interface into a React/TypeScript web platform with Firebase integrations. Both stages now live in one repository: the original Python workflow at the root and the web application in platform/. The platform has its own audit API.

Explore the product evolution · Cloud Run application

Status: In development / testing. Supports preliminary assessments; it does not replace a penetration test or a formal compliance assessment.

Experience behind the projects

  • Corporate IT: On-site and remote troubleshooting, system deployment, incident documentation and SLA-based support.
  • Infrastructure: Linux, Windows Server and MySQL environments, including professional experience in Argentina.
  • Military service: Former Communications and IT Sergeant in the Brazilian Army, with contributions to intelligence, counterintelligence and operational risk analysis, alongside team leadership and training. These are transferable skills supporting my current security specialization.

Practical capabilities

Forensics: Evidence preservation, forensic imaging, hash verification, deleted-file recovery, email and messaging artifact analysis, metadata correlation and timeline reconstruction.

Tools used in the published case: Autopsy, FTK Imager and iLEAPP.

IT and automation: Python, Linux, Windows Server, MySQL, technical reporting and remote support.

Current development focus: Security monitoring, SIEM workflows, threat detection, incident response, system hardening and cloud security.

Education

  • Cybersecurity, Anhanguera Educacional — in progress; expected completion December 2026.
  • Computer Forensics training, Cruzeiro do Sul Virtual — 2024.
  • Additional studies in forensic computing applied to law and criminal law theory — 2024.

Languages

  • Portuguese: Native
  • Spanish: Fluent; professional experience in Argentina
  • English: Upper-intermediate (B2); Voxy High Intermediate certificate

Contact

LinkedIn

Popular repositories Loading

  1. mrced mrced Public

    Config files for my GitHub profile.

  2. digital-forensics-case-threat-analysis digital-forensics-case-threat-analysis Public

    Digital forensic investigation case study involving cross-device analysis (iOS & Windows), email artifact examination, metadata timeline reconstruction and incident threat assessment. All identifyi...

  3. websec-auto-auditor websec-auto-auditor Public

    Web security auditing: from a modular Python scanner to a React/TypeScript platform with Firebase integrations. In development.

    TypeScript

AltStyle によって変換されたページ (->オリジナル) /