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About Me | Diogo - Cyber Security Portfolio
Diogo Pereira - Cyber Security Professional

Cyber Security Professional

Building Secure, Resilient Systems

I'm a cyber security professional with over a decade of experience in security engineering, data protection, and cloud infrastructure. I specialise in building secure-by-default platforms and bridging the gap between technology and governance.

Who I Am

I'm Diogo, a Cyber Security professional with 10+ years of IT, 15+ certifications, and an MSc in Cyber Security (University of Essex Online, UK). I have worked in enterprise support roles across multi-national environments where secure technology meets reliability, customer outcomes, and business goals.

My specialisation is data protection and enterprise backup management (NetBackup, appliances, Azure, AWS, GCP), with advanced skills in diagnosing complex issues across UNIX, Linux, Windows Server, storage, networking, and virtualisation. My core approach is SRE-style reliability at scale, focusing on automation, measurable outcomes, and systematic improvement.

Journey

Focus Areas & Strengths

🔐 Data Protection & Backup

Enterprise backup management (NetBackup, related appliances), customer case ownership, and lab replication. Skilled in diagnostics across UNIX, Linux, Windows Server, storage, networking, and virtualization (VMware, Hyper-V). Experience with Azure, AWS, and GCP.

👥 Customer-Facing Engineering

High-touch support for key customers, clear written analysis, and cross-team collaboration with sales, engineering, and product teams to secure renewals and resolve deployment challenges.

⚙️ SRE-style Reliability Practice

Operations as an engineering challenge, focusing on automation, measurable outcomes, and continuous improvement of products and processes.

📚 Leadership & Mentorship

Lead and coordinate escalations, supervise multilingual queues (EN, PT, ES, FR, DE), coach engineers, mentor juniors, and contribute to robust knowledge base development.

🔄 Process & Product Improvement

Document challenges, refine internal processes, and channel field feedback to enhance features, service quality, and team efficiency.

These focus areas map to CyBOK knowledge domains such as Secure Software Lifecycle, Security Operations & Incident Management, Risk Management & Governance, and Privacy & Online Rights.

Certifications & Credentials

Microsoft Certified: Azure Administrator Associate badge
Azure Administrator Associate

Azure Administrator Associate

Microsoft

Verify Credential →

What I'm Doing Now

What I'm Looking For

Building secure systems that balance innovation with protection

🔐

Security Engineering & Architecture

I collaborate on security engineering and architecture initiatives—building secure-by-default platforms, bridging technology and governance, and delivering measurable outcomes. I contribute through hands-on projects, mentoring, and knowledge-sharing with teams that value evidence-based practice, clear communication, and shared ownership of risk.

10+
Years in Security
15+
Certifications
5+
Cloud Platforms
Learning Mindset

Developer Tools & Stack

Technologies and tools I work with to build secure, scalable systems

☁️

Cloud Platforms

Azure AWS GCP Azure DevOps Terraform
🔒

Security Tools

Nmap Wireshark Metasploit Burp Suite OWASP ZAP Snort
💻

Programming

Python Bash PowerShell JavaScript SQL
🐳

DevOps & Containers

Docker Kubernetes Git Jenkins Ansible
💾

Data Protection

NetBackup Veeam Azure Backup Commvault
🖥️

Operating Systems

Linux Windows Server UNIX Ubuntu CentOS
📊

Monitoring & Analysis

Splunk ELK Stack Grafana Prometheus Nagios
🌐

Virtualization

VMware Hyper-V VirtualBox Proxmox

Let's Connect

Interested in collaborating or discussing cyber security challenges? I'm always open to connecting with like-minded professionals who are passionate about building secure, resilient systems.