Sr. Network Engineer

About the Hiring TeamTencent Overseas IT has the mission to empower Tencent’s rapid global growth with future ready, global IT platforms, applications and services. We are chartered to lead the Overseas IT strategy, architecture, roadmap and execution. Satisfying our internal/external customers and becoming a world class global IT team are our top aspirations.

What the Role Entails

We are seeking a highly skilled and experienced Senior Network Engineer to join our team. This role is critical in ensuring the reliability, security, and efficiency of our enterprise network infrastructure. The ideal candidate will have expertise in designing, deploying, and maintaining network switches, routers, firewalls, load balancers, and border security systems. You will also play a key role in troubleshooting, optimizing network performance, and implementing best security practices.

Network Infrastructure & Security

• Install, configure, and manage network switches, routers, load balancers, and firewalls (Fortinet & Palo Alto).
• Maintain border security systems, including firewalls and intrusion detection systems (IDS/IPS).
• Troubleshoot and resolve network security issues, including firewall rule base creation, VPN configuration, NAT, and high availability (HA) setup.
• Upgrade and optimize network devices, performing hardware refreshes and software updates.
• Ensure network stability, flexibility, and security while documenting configurations and installations.

Network Operations & Support

• Provide technical support, monitoring, and configuration management for enterprise networks.
• Maintain on-premise office network infrastructure and implement necessary changes.
• Develop and implement IP communication systems, including advanced routing protocols (OSPF, EIGRP, BGP).
• Utilize network monitoring and performance testing tools (e.g., Zabbix, Grafana, Iperf) to proactively detect and resolve issues.
• Assist in troubleshooting network-related incidents by working closely with support teams and end users.
• Engage with customers via phone or email to diagnose and resolve network issues efficiently.

Project & Process Management

• Participate in network engineering projects, providing expertise in planning and execution.
• Collaborate with cross-functional teams to ensure seamless network operations and business continuity.
• Work with IT service management tools such as ServiceNow, Jira, and ITSM, integrating automation and revision control into workflows.

Who We Look For

Education & Certifications

• Bachelor’s degree in IT, Computer Science, MIS, or a related field (preferred).
• Industry certifications such as:
  • CCNP or CCIE (preferred).
  • Fortinet Certified Professional (FCP) or Fortinet Certified Expert (FCX) (preferred).

Experience & Technical Skills

• 5+ years of experience in enterprise network support and project execution.
• Extensive hands-on experience with next-generation firewalls (Cisco ASA, Fortinet, Palo Alto), including:
  • IDS/IPS, DLP, content filtering, anti-malware, and DDoS protection.
• Strong understanding of firewall SIEM & SYSLOG management.
• Expertise in SFlow, NetFlow, and Flowlog monitoring.
• Advanced knowledge of Cisco ISR/ASR routers, Cisco Nexus & Catalyst switches, Cisco Prime Infrastructure, and Aruba WiFi systems.
• Experience with generic load balancers and BGP/OSPF routing protocols.
• Proficiency in network management and monitoring tools.
• Experience with Active Directory (on-prem & cloud) is a plus.

Why Join Us?

• Work in a dynamic, fast-paced environment with cutting-edge network technologies.
• Opportunity to lead and implement impactful network security solutions.
• Competitive salary, benefits, and opportunities for professional growth.

Equal Employment Opportunity at Tencent

As an equal opportunity employer, we firmly believe that diverse voices fuel our innovation and allow us to better serve our users and the community. We foster an environment where every employee of Tencent feels supported and inspired to achieve individual and common goals.