Senior IT Infra Engineer – Linux & Networking (Kollam)

Job Title: Senior Infrastructure Engineer – Linux & Networking Location: Kollam, Kerala (Vallickavu) Work Mode: Work from Office Employment Type: Full-Time Experience: 4–8 Years Joining Preference: Immediate to 15 Days About the Company Innspark is a deep-tech, product-based OEM specializing in cybersecurity products, AI, cloud solutions, and select hardware offerings such as drones, VTS, and telemedicine systems, with a diverse and evolving portfolio. To learn more, please visit: Role Overview We are seeking a hands-on Senior Infrastructure Engineer / IT Lead to take ownership of our end-to-end networking and Linux infrastructure. This role requires strong expertise in network engineering and Linux system administration, along with the ability to lead a small team and ensure high system performance, security, and availability. This is not a helpdesk or support-only role. The ideal candidate must have real infrastructure ownership experience across networking, servers, and data center environments. Key Responsibilities Own and manage the complete IT infrastructure (networking, servers, and Linux environments) Configure, maintain, and troubleshoot switches, routers, and firewalls Administer and manage Linux-based systems and servers Ensure high availability, uptime, and infrastructure security Monitor systems, identify issues, and implement proactive solutions Handle incident management, escalation, and root cause analysis Manage and implement virtualization platforms (VMware / Proxmox / KVM) Work with Docker and container-based environments Plan infrastructure scaling, upgrades, and performance optimization Lead and mentor engineers while ensuring smooth operations Mandatory Requirements (Non-Negotiable) Candidates must meet all of the following criteria: Proven hands-on infrastructure experience (not helpdesk, not purely development roles) Strong L2/L3 networking expertise, including: VLANs, STP, ACLs Inter-VLAN routing At least one routing protocol (OSPF or BGP) Firewall administration and policy creation (enterprise-level) Strong Linux server administration experience (RHEL / CentOS / Ubuntu), including: Server management Troubleshooting Performance tuning Experience with data center physical operations (rack/stack, cabling, hardware handling) Hands-on experience with at least one monitoring/NMS platform Experience creating and maintaining: Network diagrams Change logs Incident reports (RCA) Runbooks / SOP documentation Technical Requirements Networking Strong understanding of LAN, WAN, TCP/IP, DNS, DHCP, VLANs, VPNs Hands-on experience with Cisco, Juniper, or Aruba switches/routers Strong troubleshooting and network performance optimization skills CCNA or equivalent practical experience preferred Linux Administration Solid command over Linux systems Hands-on experience in server management and troubleshooting Knowledge of system security, patching, and performance tuning RHCSA / RHCE preferred (or equivalent real-world experience) Infrastructure & Tools Experience with virtualization tools: VMware / Proxmox / KVM Working knowledge of Docker (containerization) Experience with enterprise monitoring tools Preferred Background IT Lead / Infrastructure Lead Network Engineer / Network Administrator Linux System Administrator / Linux Engineer Systems Engineer / Infrastructure Engineer What We’re Looking For Strong hands-on expertise with leadership capability Ability to take complete ownership of infrastructure Problem-solving mindset with quick decision-making ability Curiosity to learn, experiment, and continuously improve systems Good communication and team coordination skills Apply on Kit Job: kitjob.in/job/4lzrc7