Team Lead - Network and Firewall Administration
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About the role
The Team Lead - Network and Firewall Administration at Cargills Bank is responsible for leading the Firewall and WAF team, providing technical guidance, managing work allocation, and overseeing performance reviews and escalations. The role involves administering and maintaining enterprise-grade firewall platforms, optimizing firewall rulesets, implementing web application security controls, and leading responses to major network security incidents. The position also requires ensuring compliance with internal security policies and regulatory standards, reviewing infrastructure changes, and collaborating with third-party vendors and internal teams. Candidates should have significant hands-on experience in network device and firewall administration, relevant certifications, and strong leadership and communication skills.
Must have
- Possess minimum 4+ years of hands-on experience in Network Device and Firewall Administration, with at least 2 years in a technical lead or supervisory role.
- Expertise in configuring, troubleshooting, and administering Palo Alto, Check Point, Fortinet Next-Generation Firewalls and Cisco, HP, Aruba, Huawei switching layers infrastructure.
- Proven hands-on experience with enterprise WAF, including custom rule creation and API protection.
- Active professional-level certifications such as PCNSE (Palo Alto), CCSA (Check Point), NSE 4 (Fortinet), or CCNA / CCNP.
- Good understanding of core networking protocols (TCP/IP, BGP, OSPF, VPN/IPsec, VLANs) and security architecture in public cloud environments.
- Bachelor’s degree in IT or an equivalent professional qualification.
- Strong leadership, problem-solving, and decision-making skills, with excellent communication abilities to articulate technical security concepts to non-technical stakeholders.
Technologies
- API Security
- BGP
- CCNA
- CCNP
- Cisco
- DevOps
- Firewall
- Firmware
- Fortinet
- IPsec
- ISO 27001
- Network Security
- OSPF
- OWASP
- Palo Alto Networks
- PCI DSS
- TCP/IP
- VLAN
- VPN
- WAF
Highlights
Applicants must submit their CVs to career@cargillsbank.com by 23rd November 2026, mentioning the post applied for in the subject line. The role is based in Colombo, Sri Lanka. Professional certifications such as PCNSE, CCSA, NSE 4, or CCNA/CCNP are required.
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