Dennis Ambrocio Rivera
Riyadh,Saudi Arabia
Summary
Results-driven network engineer specializing in infrastructure management with expertise in network device installation and configuration. Achieved a 40% reduction in service interruptions through effective preventive maintenance routines. Proficient in monitoring and troubleshooting network issues, providing support across GCC regions to improve operational efficiency. Dedicated to implementing innovative solutions that enhance performance and security.
Overview
2
2
Languages
1
1
Certification
5
5
years of post-secondary education
17
17
years of professional experience
Work history
NETWORK SECURITY ENGINEER / NETWORK ADMINISTRATOR
Baud Telecom Company (BTC Networks)
Riyadh, Saudi Arabia
2025.08 - Current
- Infrastructure Management: Installing, configuring, and maintaining network hardware (servers, routers, switches, cabling) and software.
- Network Security: Managing, Monitoring and Implementing firewalls, VPNs, and security protocols to protect data and infrastructure.
- Monitoring and Maintenance: Using tools like Cisco Prime, SolarWinds, SIEM Technologies and ManageEngine to monitor network performance, conducting updates (patching/firmware), updating certificates and performing regular backups. I am also conducting a quarterly Preventive Maintenance Routine (PMR) to minimize service disruptions, ensure optimal performance and prevent unexpected equipment failures.
- Troubleshooting: Acting as the first line of support to fix network outages specially in KSA sites and supporting other GCC countries such as UAE, Oman, Bahrain, and Kuwait, connectivity issues, and performance bottlenecks.
- User Management: Creating user accounts in security and management, managing permissions, and managing IP addressing and VLANs.
- Documentation: One of my responsibility to create and submit daily network status report, monthly report and incident/issue report. Maintaining accurate network diagrams, change logs, and inventory.
- Piloted regular penetration testing exercises, identifying weak spots in the existing security framework.
- Identified potential threats with comprehensive risk assessment strategies, enhancing prevention mechanisms.
- Implemented strong user authentication procedures, reducing chances of unauthorised access attempts.
- Managed vendor relationships to ensure optimal delivery of top-tier security products and services.
NETWORK SECURITY ENGINEER / NETWORK ADMINISTRATOR
Beyond Technology Al Saudia LTD. (BTAS)
Riyadh, Saudi Arabia
2023.07 - 2025.07
- Led the installation of new security systems for increased threat detection capabilities.
- Analysed complex technical issues, providing effective solutions in a timely manner.
- Advocated for best practice adherence amongst colleagues, fostering a culture of cybersecurity consciousness.
- Enhanced network security by implementing advanced firewall configurations.
- Core Responsibilities: Infrastructure Management: Installing, configuring, and maintaining network hardware (servers, routers, switches, cabling) and software.
- Network Security: Managing, Monitoring and Implementing firewalls, VPNs, and security protocols to protect data and infrastructure.
- Monitoring and Maintenance: Using tools like Cisco Prime, SolarWinds, SIEM Technologies and ManageEngine to monitor network performance, conducting updates (patching/firmware), updating certificates and performing regular backups. I am also conducting a quarterly Preventive Maintenance Routine (PMR) to minimize service disruptions, ensure optimal performance and prevent unexpected equipment failures.
- Troubleshooting: Acting as the first line of support to fix network outages specially in KSA sites and supporting other GCC countries such as UAE, Oman, Bahrain, and Kuwait, connectivity issues, and performance bottlenecks.
- User Management: Creating user accounts in security and management, managing permissions, and managing IP addressing and VLANs.
- Documentation: One of my responsibility to create and submit daily network status report, monthly report and incident/issue report. Maintaining accurate network diagrams, change logs, and inventory.
SENIOR MODERN WORKPLACE IT ENGINEER
Saudi Arabia Kent PLC
Al Khobar, Saudi Arabia
2022.10 - 2023.07
- Managed IT projects from initiation through delivery, meeting agreed timelines.
- Coordinated between developers and clients for clear, consistent communication.
- Implemented new technologies to streamline day-to-day processes.
- Performed regular server checks to keep operations running smoothly.
- Maintained IT asset controls, protecting hardware and software across life cycle.
- Designed, developed, and implemented asset management strategy for the organisation.
- Analysed existing computer systems and recommended upgrades and improvements.
- Monitored server health using Oracle OCI monitoring and logging services.
- Troubleshot hardware, software, and internet network issues for users.
- Created and managed user and email accounts via Active Directory.
- Applied security and distribution group policies, including password updates.
- Provisioned mailbox sizes and activated or deactivated email services.
- Collaborated with other departments to develop IT systems.
- Performed email backup and investigated issues to restore services.
- Administered helpdesk tickets, categorised requests, and escalated level 3 cases.
IT SYSTEM and NETWORK SUPPORT ANALYST
LEIDOS ARABIA
Riyadh, Saudi Arabia
2019.08 - 2022.09
- Monitored network security while maintaining confidentiality and data protection standards.
- Identified system errors for early resolution across managed environments.
- Implemented new software updates to enhance system functionality and reliability.
- Developed troubleshooting guides to simplify problem-solving for support staff.
- Managed IT controls safeguarding hardware and software assets lifecycle-wide.
- Supervised IT teams updating and installing computer systems for research.
- Resolved hardware, software, internet, and network issues for staff.
- Created and administered user and email accounts via Active Directory.
- Analysed existing computer systems and recommended upgrades and improvements.
- Trained officials to use new systems effectively.
- Collaborated with other departments to develop IT systems.
- Managed email backups and resolved mailbox issues.
SENIOR IT TECHNICAL NETWORK SUPPORT SPECIALIST
Hamat Holding Company (Asala Holding Company)
Riyadh, Saudi Arabia
2015.06 - 2019.07
- Developed effective solutions for complex networking problems, improving system reliability.
- Streamlined communication channels by setting up efficient email servers and systems.
- Maintained comprehensive documentation of network-related actions, aiding future reference and audit processes.
- Installed vital antivirus software reducing malware attacks significantly.
IT NETWORK SUPPORT TECHNICIAN
Rokn Al Ostath Computer
Riyadh, Saudi Arabia
2009.11 - 2014.06
- Assisted clients with software installation to improve daily user experience.
- Assisted disaster recovery planning to protect valuable data during outages.
- Troubleshot network connectivity issues to keep downtime to a minimum.
- Responded quickly to help-desk requests to reduce waiting times significantly.
- Kept workstations, servers, and networks in good operating condition daily.
- Troubleshot IT hardware issues and supported ongoing technology fault finding.
- Completed internet access tasks and ran hardware and software updates.
- Provided full-time PC hardware and laptop support through repairs, upgrades, installations, and configuration.
- Monitored installation and repair of network infrastructure including routers, switches, and cabling.
- Completed clerical reporting duties and prepared everyday office reports.
- Managed monthly, quarterly, and yearly inventory for products, tools, and equipment.
Education
Associate's degree - Electronics Computer Technician
ACTS Computer College
Sta. Cruz, Laguna Philippines 2000.06 - 2002.04
Bachelor of Science - Information Technology
AMA Computer University
Quezon City Philippines 2015.06 - 2018.04
Skills
- Database platforms mastery
- Web application security
- Ethical hacking techniques
- Data protection strategy
- Data privacy compliance
- Security training delivery
- Encryption algorithms
- Adapting to new technologies
- Privacy regulations knowledge
- Virtual private network usage
- Linux and Unix experience
- Network architecture understanding
- SIEM tools familiarity
- Security policy development
- Endpoint protection strategies
- Computer hacking forensic investigator
- System recovery planning
- Security incident response
- Project management capability
- Application-Level gateway proficiency
- Wireless network security
- Vulnerability testing
- Advanced persistent threats awareness
- Secure network designing
- Security protocols familiarity
- User access control
- Intrusion detection
- Checkpoint management
- Cisco networking
- Security analysis
- Network design
- Network troubleshooting
- Firewall administration
- Cybersecurity
- Systems administration
- Asset protection
- Threat management
- Incident response
- Networking protocols understanding
- Network security awareness
- Network architecture design
- Network topology design
- Cloud computing services
- Internet of things connectivity
- Network monitoring tools
- Communication proficiency
- IP addressing
- Ethernet technology
- IT project lifecycle comprehension
- Database management
Languages
English
Advanced (C1)
Arabic
Beginner (A1)
Affiliations
- I love playing computer and mobile games.
- I love reading books.
Certification
CCNP, CCNS, CCNA - Valid until: 2027
References
Available upon request.
Timeline
NETWORK SECURITY ENGINEER / NETWORK ADMINISTRATOR
Baud Telecom Company (BTC Networks)
2025.08 - Current
NETWORK SECURITY ENGINEER / NETWORK ADMINISTRATOR
Beyond Technology Al Saudia LTD. (BTAS)
2023.07 - 2025.07
SENIOR MODERN WORKPLACE IT ENGINEER
Saudi Arabia Kent PLC
2022.10 - 2023.07
IT SYSTEM and NETWORK SUPPORT ANALYST
LEIDOS ARABIA
2019.08 - 2022.09
SENIOR IT TECHNICAL NETWORK SUPPORT SPECIALIST
Hamat Holding Company (Asala Holding Company)
2015.06 - 2019.07
Bachelor of Science - Information Technology
AMA Computer University
2015.06 - 2018.04
IT NETWORK SUPPORT TECHNICIAN
Rokn Al Ostath Computer
2009.11 - 2014.06
Associate's degree - Electronics Computer Technician
ACTS Computer College
2000.06 - 2002.04