Senior L3 Network / Linux Systems Engineer

Nextologies Limited; Markham; On-site; CAD 70,000 - 90,000; Full time

Job summary

A leading broadcasting and connectivity firm located in Markham, Canada, is seeking a skilled Network Engineer. The candidate will be responsible for managing configurations and designing IT solutions, requiring expert knowledge in IPv4 addressing and experience with Cisco networking. This role also involves scripting in Linux and collaboration with various teams to optimize network performance. Competitive salary and in-person tests are prerequisites for the interview process.

Qualifications

• Expert in IPv4 address designing and management.
• In-depth knowledge of Routing, Switching, and Network Security.
• Hands-on experience with Cisco network equipment and Linux administration.
• Strong presentation skills to articulate designs and risks.

Responsibilities

• Manage configuration and administration of core network devices.
• Design and document network topologies and solutions.
• Automate tasks using Python/Bash scripts.
• Collaborate with internal teams to provide network solutions.

Skills

IPv4 address design and management

Routing and Switching

Network Security

Linux system administration

Cisco networking equipment

Network data analysis (Wireshark, TCPDump)

Scripting (Python, Bash, PHP)

Education

CCNP or equivalent certification

3-5 years experience in enterprise network environments

Tools

Linux Servers (CentOS, Ubuntu)

Cisco Catalyst 6500

PFsense firewall

Job description

Job Description

Job Description

Responsibilities

• Being escalation point for a variety of change requests / complex issues
• Configuration and administration of core routers, switches, firewalls and Linux servers
• 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 contain all the switching / routing details, migration steps, bandwidth analysis and security policy controls
• Write and implements scripts to automate tasks in Linux (Python / Bash / PHP)
• Manage various virtualization environments (Proxmox)
• Utilize the network monitoring tools to pinpoint issues and bottlenecks in the network and take the necessary steps to rectify it.
• 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.
• Troubleshoot issues from L2 to L4 of the OSI layer in the network.
• Configure and route multicast traffic across the network (PIM, IGMP).
• Building, installing and mounting servers and network equipment’s in the DataCenter
• Troubleshooting server hardware and deep tuning of Linux OS settings to achieve required performance
• Provide break down of an issue to NOC supervisors to enable them understand and explain the problem to the client.

Qualifications

• Expert in classless and classful IPv4 address designing, deploying and management.
• In-depth knowledge on Routing, Switching and Network Security with the broad industry experience (OSPF, BGP, PIM) on Cisco; Brocade as a plus.
• 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
• Hands on experience with Cisco Catalyst 6500 platform, Nexus (3K,5K,9K) switches, TNSR routing platform and PFsense firewalls.
• Thorough understanding of TCP / IP protocol family and network security technologies.
• Designed and built a multi-tier DMZ Network with micro and macro segmentation
• Experience in migrating large scale datacenters and providing the support for the applications migrations.
• Ability to work both independently and as a team member is essential.
• Strong presentation skills are imperative to be able to explain network design, articulate risk and facilitate decision making.
• Experience in network data analysis with tools such as Wireshark, TCPDump
• Experience in performing administrative tasks on Linux Servers (CentOS and Ubuntu)
• Hands on experience with Cisco network equipment.
• Experienced in configuring multicast nodes and routing multicast traffic across the network
• Hands on experience with PFsense firewall.
• Thorough knowledge of server level operations and software principles utilizing Linux CLI.
• Hands on experience on building, operating and troubleshooting virtual private server (VPS)
• Able to work extra hours if and when required (Maintenance activities and emergencies).
• Sufficient knowledge of python / bash / php to be able to read and modify existing automation scripts, as well as write new ones

Nice to have

• Knowledge of video transport protocols IP MPEG-TS, HLS, SRT and video standards
• Experience working with GPU / ASIC video processing hardware acceleration
• Ability to understand existing and create gstreamer / ffmpeg pipelines for use in lab environment

Please be advised

In-person timed "IPv4 fundamentals" test will be conducted prior to the interview, passing the test 80% or above is required to proceed to the interview stage.

Company Description

Nextologies has the world's largest broadcast video delivery network specializing in award‑winning, broadcast‑grade video connectivity for broadcasters and content owners across the globe with instant access to over 65,000 linear TV channels downlinked from 90+ globally‑placed satellites.

In addition, Nextologies is a leader in signal acquisition and delivery providing fiber, IP and custom end‑to‑end solutions for IPTV and OTT platforms and video‑centric applications across all platforms.

Learn more at .

10TX by Nextologies is a leading signal transmission company trusted by professional sports leagues, broadcasters, content producers, and entertainment companies to deliver live events and pay‑per‑view programming worldwide.