Network & IT Systems Engineer (L2/L3 Level)

Job Summary: As an L2/L3 Network & IT Systems Engineer , you will be a pivotal member of our team, responsible for managing and supporting enterprise-level network infrastructure. This role is instrumental in project execution, service delivery, and presales support, encompassing network design, implementation, commissioning, and advanced troubleshooting . You will work across a diverse IT landscape, including active/passive networking, server systems, surveillance systems, and cybersecurity solutions, ensuring robust and reliable IT operations. Key Responsibilities: Network & Infrastructure (L2/L3 Expertise)

Configuration & Commissioning: Configure and commission a wide range of network devices, including Edge L2 switches, Distribution & Aggregation L3 switches, Core L3 switches, SAN switches, Routers, TOR (Top of Rack) switches, Wi-Fi routers, and Access Points (AP's) . Oversee end-to-end network commissioning and provide dedicated service support throughout project execution phases.

Troubleshooting & Optimization: Diagnose and resolve complex network connectivity issues (e.g., L2 loops, VLAN mismatches, routing failures) with precision. Troubleshoot and resolve protocol-related issues covering STP, DHCP, DNS, OSPF, and BGP. Proactively identify and address LAN/WAN performance problems and downtime incidents, ensuring minimal disruption. Implement and manage intricate VLANs, inter-VLAN routing, access lists, and static/dynamic routing configurations .

Passive Infrastructure Validation Collaborate on planning and validating comprehensive passive infrastructure components , including: Cat6 and OFC cables, patch panels, and LIUs . Copper and fiber patch cords, and SFP modules . Server racks and equipment mounting . Ensure all IT equipment is rack-mounted and installed in strict adherence to industry and design standards .

Network Management & Monitoring (NMS) Deploy, configure, and maintain Network Management Software (NMS) solutions. Configure essential monitoring parameters like SNMP, traps, syslog, and flow monitoring , and establish effective alerting rules to ensure proactive issue detection. Maintain accurate and updated documentation for all device configurations, network topologies, and change logs .

IT System Support Configuration & Setup: Configure and set up various IT equipment including desktops, laptops, workstations, and physical/virtual servers . Install and manage diverse Operating Systems such as Windows OS, Linux OS, and various Server OS versions. Administer Active Directory, DNS, DHCP, and Group Policy Objects (GPOs) within enterprise domain environments. Perform installation, patching, and basic maintenance of server applications and storage systems (e.g., SAN, NAS).

Cybersecurity & Compliance Configure and support fundamental cybersecurity tools including endpoint protection platforms, firewall rules, and antivirus/anti-malware solutions. Implement robust log collection and auditing procedures for comprehensive security monitoring. Assist in the integration and support of firewalls, VPNs, and access control policies . Coordinate with internal security teams or OEMs for advanced issue resolution and threat mitigation.

Surveillance & ELV System Commissioning Provide expert support for the configuration and commissioning of CCTV systems (VMS/NVR), Access Control systems, Building Management Systems (BMS), and Integrated Command & Control Center (ICCC) Applications . Ensure seamless and efficient integration of ELV systems into the network and control room infrastructure .

Telecom and Connectivity Possess a strong understanding of and provide informed advice on various connectivity technologies, including MPLS, Leased Line, Broadband, RF, and VPN . Assist in selecting optimal ISPs or connectivity methods tailored to specific project requirements.

Documentation & Asset Management Maintain comprehensive and updated records in Excel or a central documentation system for: Switch/router and other network device inventory . Network topologies and VLAN schemas . Serial numbers, licenses, and warranty/RMA status . Perform regular backup configurations and firmware upgrades as needed to ensure system stability and security.

Customer & OEM Coordination Efficiently log complaints with OEMs, track RMAs, and follow up relentlessly until successful resolution . Coordinate planned downtimes, upgrades, and migrations with customers , minimizing business disruption. Provide timely telephonic and remote support for urgent and critical issues.

Presales Support (L3 Specific) Actively support the Presales team during the tender and bidding phases by: Suggesting appropriate network components (L2/L3/Industrial switches, routers, APs) based on project needs and industry best practices. Validating technical specifications, compliance sheets, and conducting thorough pricing comparisons . Reviewing Bills of Quantity (BOQs) and network architecture for optimal fitment, scalability, and cost efficiency. Assisting in preparing detailed network designs (HLD/LLD) and recommending suitable passive materials.

Project Execution & Coordination Provide L2/L3 escalation support to site engineers during implementation and ongoing support phases. Conduct essential site visits (local/outstation) for surveys, commissioning, and handover activities. Train end-users and client engineers effectively during project handover, ensuring smooth operational transition.

Qualifications

• Education: Bachelor's degree /Diploma in Computer Science, Information Technology, Electronics & Telecommunication Engineering, or a closely related field.

Experience: Minimum of 5+ years of progressive experience in network and IT systems engineering roles. At least 2 years of experience at an L3 level , demonstrating proficiency in complex troubleshooting, design, and architecture. Certifications (Highly Preferred): Networking: Cisco CCNA/CCNP (Routing & Switching/Enterprise), CompTIA Network+, Juniper JNCIA/JNCIS, or equivalent vendor-specific certifications. Server/OS: Microsoft Certified Solutions Associate (MCSA)/Expert (MCSE), Red Hat Certified System Administrator (RHCSA)/Engineer (RHCE), or equivalent. Cybersecurity: CompTIA Security+, Fortinet NSE (Level 4+), Palo Alto Networks PCCSA/PCNSA, CEH, or equivalent. Virtualization: VMware VCP, Microsoft Hyper-V certification (beneficial). ITIL Foundation certification (preferred). Technical Skills: Networking: Proven expertise with various network hardware vendors (e.g., Cisco, Juniper, HP Aruba, Fortinet, Dell, Huawei). In-depth understanding of TCP/IP stack, advanced routing protocols (OSPF, BGP, EIGRP), MPLS, QoS, VLANs, VPNs (IPSec, SSL), and software-defined networking (SDN) concepts . Server & Storage: Solid understanding of server hardware, rack servers, blade servers, virtualization technologies (VMware ESXi, Microsoft Hyper-V), and storage solutions (SAN, NAS, Fibre Channel, iSCSI). Operating Systems: Strong proficiency in administering Windows Server (2012 R2, 2016, 2019, 2022) and Linux distributions (e.g., RHEL, Ubuntu). Directory Services: Expertise in Active Directory, DNS, DHCP, and Group Policy Management. Network Management: Hands-on experience with deploying, configuring, and managing network monitoring tools and NMS platforms (e.g., SolarWinds, PRTG, Zabbix, Nagios). Cybersecurity: Strong grasp of cybersecurity concepts, including firewall management (e.g., FortiGate, Palo Alto, Cisco ASA), intrusion detection/prevention systems (IDS/IPS), endpoint detection & response (EDR), SIEM concepts, and vulnerability management. ELV Systems: Familiarity with IP-based CCTV (VMS/NVR systems like Milestone, Genetec, Pelco), Access Control Systems (ACS), Building Management Systems (BMS), and their integration requirements with IT networks. Scripting/Automation: Basic scripting skills (e.g., Python, PowerShell) for network or system automation are a plus. Soft Skills: Exceptional problem-solving and analytical skills with a meticulous attention to detail, capable of diagnosing complex issues under pressure. Strong communication and interpersonal skills , enabling effective interaction with customers, vendors, and cross-functional teams at all technical levels. Ability to work independently and collaboratively as part of a team in a dynamic, fast-paced environment. Excellent documentation and organizational skills , with a commitment to maintaining accurate and up-to-date records and diagrams. Proven ability to manage multiple tasks and priorities effectively, delivering high-quality results within deadlines. Strong commitment to continuous learning and staying updated with emerging technologies.