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Network Security Operations Specialist
TEKsystems (Allegis Group Singapore Pte Ltd)Singapore12 days ago
Job description8+ years' experience in an enterprise network operations or security support environment. Deep understanding of perimeter security technologies, including next-generation firewalls (, Check Point, Palo Alto, Fortinet, Cisco Firepower, Juniper SRX) and IDS / IPS solutions. Proficiency with NAT, stateful firewall concepts, HA / clustering protocols and policy management. Hands-on experience with tunneling protocols (SSL / TLS, IPsec, GRE) and DMZ / Internet security architectures. Familiarity with DDI solutions (DNS, DHCP, IPAM), proxy / DLP technologies and load balancers (, F5 LTM / APM, NSX AVI). Solid knowledge of PKI concepts (certificates, trust chains, CRLs, OCSP). Strong troubleshooting skills and the ability to align actions with business impact and service-restoration goals. Excellent verbal and writtenmunication skills and experience interfacing with stakeholders at all levels. Demonstrated ownership and accountability, with the ability to hold others to account professionally. Flexible approach to working hours, including participation in on-call rotations. Relevant industry certifications (, CCNP Security, CISSP, CCIE Security). Experience with network automation and scripting (Python, Ansible, Shell, REST APIs). Familiarity with ITIL best practices, incident / problem management and change control processes. Exposure to Agile methodologies and tools (JIRA, Confluence). E xperience using configuration-management or network-mapping
Responsibilities
- Serve as the primary point of contact for critical network security incidents, leading bridge calls and coordinating response efforts.
- Monitor perimeter securityponents (firewalls, IDS / IPS, proxies, DDI, load balancers) and interpret alerts, dashboards and logs to identify potential service impacts.
- Perform root-cause analysis and work with engineering teams to implement permanent fixes.
- Develop and maintain accurate incident documentation, run-books and post-mortem reports.
- Create simple automation scripts or workflows to streamline incident handling and reporting.
- Liaise with vendors and external suppliers to escalateplex issues.
- municate incident status and technical details clearly to stakeholders and update knowledge-base articles.
- Uphold operational standards andernance policies during triage, testing and remediation activities.
Required Skills & Experience
Desired Skills & Qualifications
We regret to inform that only shortlisted candidates will be notified.
EA Registration No : NG XUAN, R24123530
Allegis Group Singapore Pte Ltd,pany Reg No. 200909448N, EA License No. 10C4544
Job ID a4VOd000001JHxRMAW
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Operation Specialist • Singapore
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