Network Security Engineer

What We Need

Oivan is looking for a Senior Network Security Engineer, preferably with experience in F5, Palo Alto and Fortinet security products such as WAF and NGFW. The candidate will implement and maintain network and security on IaaS cloud mainly OpenStack. He should oversee network configuration, firewall roles, IPSec and various VPN technologies. Oivan is looking for a passionate network and security engineer to join our talented pool of resources, with at least 5 years of experience in managing and troubleshooting network / security infrastructure. You will work as an operation and Level-2 support engineer to fulfill daily requests from different internal departments and communicate with vendors and service providers for Level-3 support incidents. You will be based on-site at our customer’s premises in Riyadh, KSA. What You'll Do

Experience in designing, planning, and implementing various secure network topologies using multivendor technologies (Cisco, Palo Alto, etc.). Experience in implementing and managing perimeter security controls and solutions based on the Cybersecurity department’s recommendations. WAN and LAN security; site-to-site VPN and remote VPN access. Implementing firewall policies and threat protection. Security upgrades, patching, configuration backup. Experience in the implementation and management of network technologies and services : DNS, DHCP, SYSLOG, IP address management and route optimization. SNMP and xFlow, AAA, RADIUS and authentication platforms. IGP (RIP, OSPF), BGP, gateway redundancy protocols such as VRRP. L2 Ethernet switching network based on Cisco technology : access / core, port-channel and trunk ports, VLANs, STP flavors and other loop-prevention technologies. Wireless access point design, configuration and troubleshooting. Providing Level-2 support for access, core and perimeter infrastructure; monitoring KPIs for network and security appliances (CPU, memory, link utilization, response time, throughput) and maintaining agreed service levels. Security controls implementation, auditing and monitoring; incident handling, troubleshooting and reporting. Experience in Level-2 support, incident handling and root cause analysis reporting. Continuously monitor web traffic and application behavior to detect, analyze, and respond to threats—leveraging traditional network tools and application-layer firewalls. Vendor and service provider relationship management, support contract discussions and renewals, SLA tracking, and escalation of issues. Evaluate and remediate vulnerabilities related to web application threats (e.g., OWASP Top Ten), leveraging virtual patching and rapid policy adjustments when needed. Deploy network segmentation and policy enforcement strategies, ensuring defense-in-depth across layers via segmentation, VPNs, and secure remote access architectures. Leverage automation and scripting (e.g., Python, RegEx) for deployment, monitoring, and rule management of WAF and network security infrastructure. What You Have

Bachelor’s Degree in Computer Science / Network Engineering / Electronics or equivalent qualification. At least 5 years of working experience in the same role. Preferably Cisco Certified Professional (CCNP, CCSP). Good communication, interpersonal skills, self-motivated team player, capable of working with minimal supervision. Strong service-oriented mindset and problem-solving abilities. Hands-on experience with multiple WAF platforms and deep knowledge of web application security. Familiarity with firewall configuration, network protocols (TCP / IP, HTTP / S), and related security services. Familiarity with IPSec, MPLS, and other VPN technologies and routing protocols. Onsite work in Riyadh, Saudi Arabia. Who We Are

At Oivan, we appreciate different lifestyles and cultural backgrounds. We welcome diversity as a strength and consider all applications regardless of race, color, ancestry, religion, national origin, age, citizenship, marital status, disability, orientation or gender identity. We strongly encourage individuals from groups traditionally underrepresented in tech to apply. Oivan’s company culture reflects our core values. We are committed to our employees, customers and the environment, and value collaboration across an international team. Privacy Notice

By submitting your application and CV, you provide explicit consent for us to handle and store your personal information in our HR information systems. All data processing will adhere to applicable data protection and privacy regulations in Saudi Arabia. Your information will be treated with confidentiality and in compliance with relevant local data protection laws.

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