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network administrator

Hbox Digital

Job SummaryWe are seeking a skilled Network &amp; VoIP Administrator to manage, maintain, and support the organization&rsquo;s network infrastructure and VoIP communication systems. This role is responsible for ensuring high availability, performance, security, and reliability of all network and voice services in a fast-paced software house environment.Key Responsibilities<ul><li>Install, configure, monitor, and maintain network infrastructure including LAN, WAN, Wi-Fi, switches, routers, and firewalls.</li><li>Administer, support, and optimize VoIP systems such as IP PBX, SIP trunks, IP phones, and softphone solutions.</li><li>Monitor network and call quality performance; proactively troubleshoot network connectivity and voice-related issues.</li><li>Implement and maintain network security measures including firewalls, VPNs, access controls, and regular patching.</li><li>Perform routine system maintenance, upgrades, backups, and maintain up-to-date technical documentation.</li><li>Coordinate with vendors and service providers for troubleshooting, escalations, and system enhancements.</li><li>Provide technical support and guidance to internal teams for network and VoIP-related issues.</li><li>Ensure compliance with company IT policies, security standards, and industry best practices.</li><li>Prepare and maintain reports related to network performance, incidents, and system health.</li></ul>Required Skills &amp; Qualifications<ul><li>Bachelor&rsquo;s degree in IT, Computer Science, or a related field (or equivalent practical experience).</li><li>Proven experience as a Network Administrator, VoIP Administrator, or similar role in an IT or software house environment.</li><li>Strong understanding of networking protocols and technologies (TCP/IP, DNS, DHCP, VLANs, VPNs).</li><li>Hands-on experience with VoIP technologies including SIP, IP PBX systems, call routing, and QoS.</li><li>Experience using network monitoring, troubleshooting, and diagnostic tools.</li><li>Solid understanding of network security concepts and best practices.</li><li>Excellent problem-solving, communication, and documentation skills.</li></ul>Preferred Skills<ul><li>Industry certifications such as CCNA, CCNP, or VoIP-related certifications.</li><li>Experience with cloud-based VoIP or Unified Communication platforms.</li><li>Ability to work independently and manage responsibilities during evening or off-hour shifts.</li></ul>Job Type: Full-timeWork Location: In person

Network & VoIP Administrator

Reelax Media Limited

Job Title: IT Administrator Job Type: Full-time Location: Karachi (Onsite) Timings: 10:00 AM &ndash; 7:00 PM (Monday to Friday)Job DescriptionWe are seeking an experienced IT Administrator to manage and maintain our office IT infrastructure. The ideal candidate should have strong expertise in computer hardware, software, and networking, with hands-on experience in troubleshooting system and internet-related issues.Our office uses high-performance PCs for video editing, so the candidate must be capable of handling heavy systems and resolving issues efficiently.Responsibilities<ul><li>Hardware and software troubleshooting</li><li>Managing high-performance PCs</li><li>Network and internet troubleshooting</li><li>System maintenance and updates</li><li>Technical support for office staff</li></ul>Requirements<ul><li>Bachelor&rsquo;s degree in IT / Computer Science or relevant field</li><li>3&ndash;4 years of relevant IT experience</li><li>Strong understanding of hardware, software, and networking</li><li>Ability to work independently and handle pressure</li></ul>How to ApplyEmail: careers@reelax-media.com Contact Number: 0306-2456599Job Type: Full-timePay: From Rs80,000.00 per monthExperience:<ul><li>IT Administration: 3 years (Preferred)</li></ul>Work Location: In person

IT - Administrator

Global Connect Synergy

PRIMARY RESPONSIBILITIES<ul><li>Respond to requests for technical assistance via phone, and electronically through email;</li><li>Proactively identify, diagnose, analyze and troubleshoot issues;</li><li>Diagnose and resolve technical hardware and software issues;</li><li>Follow standard help desk procedures;</li><li>Log interactions and administer help desk software;</li><li>Establish and maintain service levels;</li><li>Perform basic troubleshooting, monitor network implementations, and manage network device alarms;</li><li>Provide regular status reports on tasks accomplished and ongoing issues;</li><li>Maintain and support the communications network server software and hardware.</li></ul>EDUCATION AND WORK EXPERIENCE<ul><li>Bachelor's degree or equivalent in Computer Science or Engineering</li><li>1-2 years&rsquo; relevant work experience</li></ul>KNOWLEDGE &amp; SKILLS REQUIRED1. Strong concepts of IP routing &amp; network designing;2. Good troubleshooting and critical thinking skills to resolve complex problems;3. Knowledge of wireless access controllers and access points;4. Intermediate knowledge of network systems design principles and standards;5. Knowledge of Cisco, Juniper or Huawei equipment and technologies;6. Ability to work in teams and independently with candid professional attitude and excellent analytical skills;7. Good written and verbal communication skills;Job Type: Full-timePay: Rs50,000.00 - Rs80,000.00 per monthWork Location: In person

Jr. Network Support Engineer

HRC Recruitment

Job Description &ndash; Network EngineerPosition OverviewThe Network Engineer will be responsible for designing, implementing, securing, and maintaining the organization&rsquo;s network infrastructure. This role requires strong expertise in firewalls, switching, routing, monitoring, and network security practices. The ideal candidate will possess advanced troubleshooting skills and hands-on experience with enterprise-grade network technologies.Key ResponsibilitiesNetwork Infrastructure Management<ul><li>Configure, manage, and troubleshoot enterprise firewalls including Palo Alto, Fortinet, Sophos XGS, and pfSense.</li><li>Administer Cisco and Dell network switches, including VLAN design, STP, EtherChannel, trunking, and switch stack management.</li><li>Configure and support Cisco and Mikrotik routers, including multi-WAN setups, load balancing, and failover.</li><li>Manage LAN/WAN environments and core network services such as TCP/IP, BGP, OSPF, DHCP, DNS, NAT, and routing policies.</li><li>Design, implement, and maintain site-to-site VPNs (IPSec, OpenVPN, WireGuard) ensuring secure branch connectivity.</li></ul>Network Security<ul><li>Implement and manage perimeter security using firewalls and WAF solutions.</li><li>Conduct Vulnerability Assessment &amp; Penetration Testing (VAPT) across network environments.</li><li>Perform regular security audits, risk assessments, and patching activities.</li><li>Ensure compliance with security standards and enforce network access control policies.</li></ul>Network Monitoring &amp; Troubleshooting<ul><li>Monitor network performance using Zabbix, PRTG, and Cacti.</li><li>Respond to critical alerts, perform root-cause analysis, and resolve L3 network issues.</li><li>Ensure maximum uptime through proactive issue identification and resolution.</li><li>Provide on-call support during major incidents and outages.</li></ul>Wireless Network Management<ul><li>Deploy and administer wireless solutions including UniFi, Aruba, and TP-Link Omada access points.</li><li>Configure SSIDs, VLANs, guest networks, roaming, and wireless controllers.</li><li>Optimize wireless coverage and security across office environments.</li></ul>Documentation &amp; Network Design<ul><li>Create and maintain High-Level (HLD) and Low-Level (LLD) network diagrams.</li><li>Prepare technical documents including implementation plans, change requests, SOPs, and network topology diagrams.</li><li>Maintain accurate documentation of network devices, IP addressing, and inventory.</li></ul>Data Center &amp; Infrastructure Support<ul><li>Support data center operations including structured cabling, rack management, UPS, CCTV, and access control systems.</li><li>Collaborate on capacity planning, redundancy, and high-availability strategies.</li><li>Assist in network deployment during office expansions and infrastructure migrations.</li></ul>Virtualization &amp; Server (Network-Related)<ul><li>Work with virtualization platforms such as VMware, Hyper-V, Proxmox, XCP-NG, and XenServer for network-related configurations.</li><li>Configure virtual switches, VLAN tagging, routing, and network HA within virtual environments.</li></ul>VoIP &amp; Telephony Support<ul><li>Manage VoIP systems including Asterisk, Avaya IP Office, and SIP trunking.</li><li>Configure dial plans, IVR routing, call logging, and phone provisioning.</li><li>Troubleshoot telephony-related network issues.</li></ul>Required Skills &amp; Competencies<ul><li>Strong understanding of network protocols and enterprise networking.</li><li>Hands-on experience with Cisco switching &amp; routing.</li><li>Expertise in firewall administration and network security principles.</li><li>Strong analytical, troubleshooting, and problem-solving abilities.</li><li>Ability to prepare clear technical documentation.</li><li>Experience with DNS, DHCP, and IP addressing design.</li><li>Familiarity with cloud networking (AWS, OVH) is a plus.</li><li>Experience with monitoring tools (Zabbix, PRTG, Cacti).</li></ul>Qualifications<ul><li>Bachelor&rsquo;s degree in Computer Science, Telecommunication Engineering, or related field.</li><li>Master&rsquo;s degree preferred.</li><li>Professional certifications strongly preferred:</li><li>CCNA (Required)</li><li>PCNSA (Preferred)</li><li>CCNP ENCOR (In Progress / Preferred)</li><li>AWS Certified Solutions Architect Associate (Plus)</li></ul>Experience<ul><li>3&ndash;7+ years of hands-on experience in network engineering, administration, and security.</li><li>Proven experience in managing enterprise firewalls, routers, switches, and wireless networks.</li><li>Experience supporting medium to large-scale multi-site environments.</li></ul>Job Type: Full-timePay: Rs50,000.00 - Rs70,000.00 per monthWork Location: In person

Network Engineer

Dawat-e-islami

<ul><li>Working knowledge of networking technologies such as LAN, Internet, wireless and IP telephony.</li><li>Configuration &amp; Troubleshooting skills related to routing, switching and security equipment e.g., switches, firewalls.</li><li>Maximizing network performance by monitoring performance, troubleshooting network problems and outages, scheduling upgrades.</li><li>Undertaking data network fault investigations in local and wide area environments, using information from multiple sources.</li><li>Securing network system by establishing and enforcing policies, and defining and monitoring access.</li><li>Updating job knowledge by participating in educational opportunities, reading professional publications, maintaining personal networks.</li><li>Reporting network operational status by gathering, prioritizing information and lead projects.</li><li>Remote support of on-site engineers and end users.</li><li>Remote troubleshooting and fault finding if issues occur.</li><li>liaising with project management team, Help-Desk team on a regular basis.</li><li>Incident/Problem escalation to the up-level team and follow the defined process.</li></ul>Requirements:<ul><li>Computer Science Graduate.</li><li>Relevant diploma/courses.</li><li>Good to have CCNA certification.</li><li>Project Management, Team Management, Problem Solving.</li><li>LAN &amp; WAN Knowledge, Networking Knowledge, Network Design and Implementation.</li><li>Network Troubleshooting, Network Hardware Configuration, Network Performance Tuning.</li><li>Communication skills (verbal &amp; written).</li></ul>Job Type: Full-timeWork Location: In person

Network Support

Fiberish Pvt Ltd

Position: NOC Engineer Shift Type: Rotational (Morning/Evening/Night) Location: KarachiResponsibilities:<ul><li>Design, implement, and maintain networking systems to support company operations.</li><li>Conduct regular assessments of network security and recommend enhancements as needed.</li><li>Collaborate with cross-functional teams to troubleshoot and resolve network issues promptly.</li><li>Ensure the efficient operation of routers, switches, firewalls, and other networking equipment.</li><li>Implement network policies and procedures to optimize performance and security.</li><li>Monitor network performance and recommend adjustments to meet changing business needs.</li><li>Provide technical support to end-users and assist in resolving connectivity issues.</li><li>Collaborate in the planning and execution of network infrastructure upgrades and expansions.</li></ul>Requirement:<ul><li>Proficiency in networking protocols and technologies (TCP/IP, DNS, DHCP, VLANs, VPNs, PPPoE, QinQ , IPSec)</li><li>Good Knowledge &amp; hands-on experience of Static &amp; dynamic Routing Protocols.</li><li>CCNA Certification will be a plus.</li><li>Awareness of industry trends, emerging technologies, and best practices in network engineering.</li><li>Knowledge of network monitoring tools (e.g., Cacti, Librenms, Nagios, SolarWinds, PRTG) and network management systems.</li><li>Should be able to work in a team and perform under pressure.</li><li>Multi-tasking.</li><li>Excellent verbal &amp; written communication skills.</li></ul>Job Type: Full-timeAbility to commute/relocate:<ul><li>Karachi: Reliably commute or planning to relocate before starting work (Required)</li></ul>Work Location: In person

NOC Engineer

Avanza Solutions

Sr. System / Network EngineerWe are looking for a highly skilled Sr. System / Network Engineer to join our IT Infrastructure team. The ideal candidate will have strong hands-on experience in systems administration, network management, cloud services, and end-to-end IT operations.Key Responsibilities:<ul><li>Manage Windows Server environments (AD, DNS, DHCP, Group Policies, File Services).</li><li>Maintain and optimize network infrastructure (LAN/WAN, switches, routers, firewalls).</li><li>Oversee Office 365 administration (Exchange Online, SharePoint, Teams, security &amp; compliance).</li><li>Manage MS SQL and Oracle server environments.</li><li>Implement and monitor backup/DR solutions (Veeam/other).</li><li>Troubleshoot system, network, and security-related issues.</li><li>Support virtualization platforms (VMware/Hyper-V).</li><li>Ensure system availability, performance, and security across the organization.</li></ul>Required Skills &amp; Experience:<ul><li>4&ndash;8 years of experience in System &amp; Network Engineering.</li><li>Strong understanding of Microsoft infrastructure.</li><li>Experience with Office 365 management &amp; migration.</li><li>Good knowledge of switches, firewalls, VPNs, and routing.</li><li>Familiarity with cloud technologies is a plus (Azure/AWS).</li><li>Ability to manage multiple tasks and work in a fast-paced environment.</li><li>Relevant certifications (MCSA, MS-365, CCNA, etc.) are preferred.</li></ul>Interested candidate may apply at abdul.basit@avanzasolutions.comJob Type: Full-timePay: Up to Rs200,000.00 per monthWork Location: In person

System Network Engineer

Explore 173+ Network administrator in Karachi this January. Find roles across top companies and apply now to boost your career.