My Portfolio

MAKE CYBER SECURITY YOUR TOP PRIORITY

I’m a Cyber Security and A Network and Digital Infrastructure Specialist

DENNIS K. THIONGO

I’m a dedicated Cyber Security and Network Infrastructure Specialist with a strong focus on protecting systems against evolving digital threats.

About Me

A passionate and detail-oriented Cyber Security and Network Infrastructure Specialist based in Kenya. I hold a Diploma in ICT and also II have done several self-paced courses that have boosted my knowledge in both the theoretical and practical side of Tech.I have skills in managing network systems, securing digital assets, and supporting enterprise IT operations. I’ve worked in both Private ISPs and Government Organisations, including Eldonet Services, Kaiboi National Polytechnic, Konza Technopolis, KPLC and Kenya Plant Health Inspectorate Services, where I handled network diagnostics, spectrum analysis, radio configurations ,SIEM and Network Monitoring tool Implementation and monitoring.

Mission Statement

My mission is to help organizations strengthen their digital resilience by implementing secure, scalable, and efficient network systems. I aim to grow into a leadership role in cyber defense, contributing to innovative infrastructure solutions and promoting a culture of security awareness.

Technical Skills

Security Operations Center Specialist
Threat Analysis and Incidence Response
Network Configuration (Routers, Switches, VLANs)
Wireless Radio Setup & Mast Maintenance
Spectrum Analysis & Signal Quality Assessment
Linux System Administration
IP Addressing & Subnetting
Firewall Setup & VPN Configuration
IT Support & Helpdesk Operations
Website Management & Web Security

Soft Skills

Strong Communication & Collaboration

Problem Solving & Critical Thinking
Attention to Detail
Project Management
Time Management
Client-Centered Service Delivery
Adaptability & Continuous Learning

Certifications

Google Certifications:

Cyber Security Certification
Automate Cybersecurity Tasks with Python
Detection and Response
Assets, Threats, and Vulnerabilities
Network and System Security
Security Risk Management
Foundations of Cybersecurity
Linux and SQL

Cisco Certifications:

CCNA Enterprise Networking, Security and Automation
CCNA Switching, Routing, and Wireless Essentials
CCNA Introduction to Networking
Cisco Learn-A-Thon 2025 Award

ISC2 Certifications:

CC (Certified in Cybersecurity)
Security Operations
Security Principles
Access Control Concepts
Network Security
Incident Response, BCDR Concepts

Microsoft Certifications:

Microsoft Certified: Security, Compliance, and Identity Fundamentals
Microsoft IT Support Certificate

EC-Council Certifications:

Ethical Hacking Essentials
Network Defence Essentials
SQL Injection Attacks
Configure Juniper SRX Using J-Web
Cybersecurity for Businesses
Dark Web, Anonymity & Cryptocurrency

Sololearn Certifications:

SQL Intermediate
C Programming
HTML, CSS & Responsive Web Design
Web Development Fundamentals

ICT Authority :

Basic Digital Productivity Skills
Digital Skills Training & 5-Week Mentorship

Others:

Fortinet Certified Associate in Cybersecurity
Hack Secure Internship Certificate
Security Principles
Access Control Concepts
Network Security
Incident Response, BCDR Concepts

Microsoft Labs Completed

Managing Azure Active Directory Identities and Roles
Deploying a Virtual Machine in Azure
Implementing Microsoft Defender for Cloud
Navigating Microsoft Compliance Manager
Configuring Conditional Access Policies in Azure AD
Exploring Identity Protection and Risk-Based Sign-in Reports
Creating and Managing Resource Groups and Subscriptions

8.Setting Up Azure Cost Management and Billing Alerts
9.Implementing Role-Based Access Control (RBAC) for Resources
10.Exploring Microsoft Purview for Data Governance
11. Using the Azure Pricing Calculator and TCO Estimator
12. Deploying and Configuring Azure Storage Accounts
13. Monitoring Resources Using Azure Monitor and Alerts
14. Understanding and Applying Azure Policies for Compliance
15. Enabling and Testing Multi-Factor Authentication (MFA)