systems engineer - software
Title posted on ZipRecruiter - L3 Network Linux Systems Engineer
Posted on April 16, 2026 by Employer details Nextologies Limited
Job details
<h3>Job Description</h3><div>Job Description<div><p><b><strong>L3 Network/ Linux Systems Engineer</strong></b><br><br><b><strong>Responsibilities</strong></b></p><ul><li>Being escalation point for a variety of change requests/complex issues</li><li>Configuration and administration of core routers, switches, firewalls and Linux servers</li><li>Architecture and designing the network topologies & comprehensive IT solutions, create and maintain Visio / Lucidchart diagrams, configuration templates, IP addressing (NetBox IPAM) and the low-level design documents that contains all the switching/routing details, migration steps, bandwidth analysis and security policy controls</li><li>Write and implements scripts to automate tasks in Linux (Python/Bash/PHP)</li><li>Manage various virtualization environments (Proxmox)</li><li>Utilize the network monitoring tools to pinpoint issues and bottlenecks in the network and take the necessary steps to rectify it.</li><li>Collaborate with various internal groups, business units to understand the applications and provide end to end network solution as per the firm's network standards.</li><li>Troubleshoot issues from L2 to L4 of the OSI layer in the network.</li><li>Configure and route multicast traffic across the network (PIM, IGMP).</li><li>Building, installing and mounting servers and network equipment's in the DataCenter</li><li>Troubleshooting server hardware and deep tuning of Linux OS settings to achieve required perfomance</li><li>Provide break down of an issue to NOC supervisors to enable them understand and explain the problem to the client.</li></ul><p><b><strong>Qualification:</strong></b></p><p>• Expert in classless and classful IPv4 address designing, deploying and management.</p><ul><li>In-depth knowledge on Routing, Switching and Network Security with the broad industry experience (OSPF, BGP, PIM) on Cisco; Brocade as a plus.</li></ul><p>• 3-5 years of experience with designing and implementing large enterprise network environments and with Linux system administration. CCNP or equivalent or higher industry certification are preferred</p><p>• Hands on experience with Cisco Catalyst 6500 platform, Nexus (3K,5K,9K) switches, TNSR routing platfrom and PFsense firewalls.</p><ul><li>Thorough understanding of TCP/IP protocol family and network security technologies.</li><li>Designed and built a multi-tier DMZ Network with micro and macro segmentation</li><li>Experience in migrating large scale datacenters and providing the support for the applications migrations.</li><li>Ability to work both independently and as a team member is essential.</li><li>Strong presentation skills are imperative to be able to explain network design, articulate risk and facilitate decision making.</li><li>Experience in network data analysis with tools such as Wireshark, TCPDump</li><li>Experience in performing administrative tasks on Linux Servers (CentOS and Ubuntu)</li></ul><p>• Hands on experience with Cisco network equipment.</p><p>• Experienced in configuring multicast nodes and routing multicast traffic across the network</p><p>• Hands on experience with PFsense firewall.</p><p>• Thorough knowledge of server level operations and software principles utilizing Linux CLI.</p><p>• Hands on experience on building, operating and troubleshoot virtual private server (VPS)</p><p>• Able to work extra hours if and when required (Maintenance activities and emergencies).</p><p>• Sufficient knowledge of python/bash/php to be able to read and modify existing automation scripts, as well as write new ones</p><p><b><strong>Nice to have:</strong></b></p><p>*Knowledge of video transport protocols IP MPEG-TS, HLS, SRT and video standards</p><p>*Experience working with GPU/ASIC video processing hardware acceleration</p><p>*Ability to understand existing and create gstreamer/ffmpeg pipelines for use in lab environment</p><p>*Experience using agentic AI tools, deploying self-hosted- Location Markham, ON
- Work location On site
- Salary$123,454.71YEAR annually
- Terms of employment Permanent employmentFull time
- Starts as soon as possible
- vacancies 1 vacancy
- Source ZipRecruiter #bb9200d23
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