Assistant Manager- IT Infrastructure

The Assistant Manager - IT Infrastructure will be responsible for overseeing and maintaining the organization's network and server environment. This role involves managing Cisco routers, switches, VLANs, and network infrastructure while administering Fortinet firewalls, VPNs, and security policies. The candidate will also handle Windows Servers, Active Directory, DNS, DHCP, and Microsoft 365 administration. Monitoring infrastructure performance through tools like Zabbix and troubleshooting system issues are key aspects of the position. Additionally, the role includes managing server migrations, infrastructure deployments, and automating tasks using PowerShell. The candidate will oversee Asterisk PBX systems, including SIP trunks, IVR, and call routing, while ensuring backups, security, and disaster recovery procedures are in place. Leading the IT infrastructure team and coordinating with vendors and internal departments to meet service level agreements (SLAs) is essential.

Key Responsibilities

- Manage and maintain Cisco routers, switches, VLANs, and overall network infrastructure.
- Administer Fortinet firewalls, VPNs, and enforce security policies.
- Oversee Windows Server environments, Active Directory, DNS, DHCP, and Microsoft 365 services.
- Monitor infrastructure performance using Zabbix and resolve system issues promptly.
- Execute server migrations, infrastructure deployments, and PowerShell automation scripts.
- Manage Asterisk PBX systems, including SIP trunks, IVR configurations, and call routing.
- Maintain data backups, security protocols, and disaster recovery plans.
- Lead and mentor the IT infrastructure team, ensuring compliance with SLAs.
- Collaborate with vendors and internal teams on infrastructure-related projects.

Required Qualifications

- Bachelor’s degree in Information Technology, Computer Science, or a related discipline.
- 5 to 6 years of hands-on experience in IT infrastructure management and network administration.
- Strong knowledge of network and data center communications.
- Expertise in Cisco networking technologies, including Layer 2 and Layer 3 networking and VLAN configurations.
- Proficient in firewall management, VPNs, and network security best practices.
- Practical experience with Windows Server, Active Directory, and Microsoft 365 administration.
- Familiarity with monitoring tools such as Zabbix and scripting using PowerShell.
- Experience with Asterisk VoIP systems.
- Excellent team leadership, troubleshooting, and problem-solving skills.
- Willingness to work rotational shifts as required.

Preferred Qualifications and Benefits

Certifications such as CCNA, CCNP, Fortinet Certified Professional (FCP), or relevant Microsoft certifications are highly desirable. The role offers a competitive salary package along with benefits including Provident Fund (PF), health and life insurance, paid leaves, and opportunities for professional development and career growth. The organization supports a collaborative work environment and provides paid certifications to encourage continuous learning.

Location: Karachi, Sindh - Pakistan