Network Security - L3

Advanced technology and cybersecurity company (sirar) established by stc, the region’s ICT and digital services provider, sirar by stc is a cutting-edge cybersecurity provider that empowers organization to take control of their cyber capabilities and digital environments. As experts in business security and privacy. We offer a comprehensive range of solutions that help you to operate online safely, securely, and efficiently.

• Handles IT Network system security as a subject matter expert on IT System security and providing up to level-3 support.
• Handles escalations and provide advisory and support function to front office / back office.

• Configure firewalls, intrusion detection/prevention systems (IDS/IPS), VPNs, and other security appliances.
• Access Controls:
  Configure access control lists (ACLs) to ensure only authorized users can access network resources. Security Policies:
  Implement network security policies and protocols.
• System and Network Logging:
  Set up logging and monitoring systems to track security events and incidents.
• Network Protocols:
  Knowledge of TCP/IP, DNS, HTTP/S, SSL/TLS, and other network protocols.
• Firewall Configuration:
  Experience configuring and managing firewalls (e.g., Cisco ASA/FTD, Palo Alto, Fortinet, Juniper).
• Intrusion Detection/Prevention Systems:
  Understanding of IDS/IPS technologies and their deployment.
• VPN Technologies:
  Proficiency in setting up and managing VPNs (e.g., IPsec, SSL VPN).
• Security Information and Event Management (SIEM):
  Familiarity with SIEM tools (e.g., Splunk, QRadar).
• Encryption Techniques:
  Knowledge of encryption algorithms and best practices for data protection.
• Monitor and troubleshoot network security systems:
  Handle security-related incidents and issues outside regular working hours
• Issue Resolution:
  Address and resolve escalated issues from L1 support teams, ensuring timely responses to minimize disruptions.
• System Updates:
  Participate in system updates and upgrades as required to maintain functionality and security.
• Request Analysis:
  Analyze incoming requests for potential risks, providing insights to guide decision-making. Analyzes identified malicious activity to determine weaknesses exploited, exploitation methods, effects on system and information.
• Perform risk analysis:
  Conduct regular security reviews and assessments.
• Escalation Management:
  Effectively handle and resolve escalated issues from L1 and L2 teams, ensuring swift resolution to minimize operational disruption.
• System Upgrades and Maintenance:
  Proactively update and upgrade systems to maintain optimal performance and security standards.
• Risk Analysis:
  Conduct thorough analyses of requests to identify potential risks, ensuring informed decision-making prior to action.
• Change Management Execution:
  Implement all system changes in strict adherence to change management processes, ensuring stability and compliance.
• Service Handover Management:
  Oversee the seamless handover of new systems and services, ensuring comprehensive understanding and continuity.
• Knowledge Sharing:
  Facilitate frequent knowledge transfer sessions for L1 and L2 teams, fostering skill development and operational efficiency.
• Telecom Security Monitoring:
  Support monitoring and operational activities related to telecom signaling security technologies including SS7, Diameter, and GTP/GTP-C within mission critical environments.
• Signaling Security Awareness:
  Possess working knowledge of telecom signaling protocols (SS7, Diameter, GTP) and associated security risks, vulnerabilities, and operational impacts on critical telecom services.
• Mission Critical Service Assurance:
  Support secure operation and availability of telecom security infrastructure protecting critical services, ensuring stability and minimal service disruption in 24x7 mission critical environments.
• Telecom Security Incident Handling:
  Assist in identifying, analyzing, troubleshooting, and escalating telecom-related security incidents, signaling anomalies, suspicious traffic behavior, and service-impacting events.
• Telecom Protocol Troubleshooting:
  Support troubleshooting activities involving SS7, Diameter, and GTP…