systems engineer - software

Title: Senior L3 Network Linux Systems Engineer

Posted on: April 04, 2025 by Nextologies Limited

Job Details

Job Description

Responsibilities:

• Leading team of network/systems engineers
• Being escalation point for a variety of possible service requests/complicated 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 implement scripts to automate tasks in Linux (Python/Bash/PHP)
• Manage various virtualization environments (Proxmox, Xen, ESXi)
• Utilize network monitoring tools to pinpoint issues and bottlenecks in the network and take necessary steps to rectify them.
• Collaborate with various internal groups and business units to understand the applications and provide end-to-end network solutions 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 in the Data Center
• Troubleshooting server hardware and deep tuning of Linux OS settings to achieve required performance
• Provide breakdown of an issue to NOC supervisors to enable them to 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 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 preferred.
• Hands-on experience with Cisco Catalyst 6500 platform, Nexus (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 data centers and providing support for applications migrations.
• Ability to work both independently and as a team member is essential.
• Strong presentation skills are imperative 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 servers (VPS).
• Able to work extra hours if and when required (Maintenance activities and emergencies).
• Sufficient knowledge of Python/Bash/PHP 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.

Location: Markham, ON

Workplace Information: On site

Salary: $112,941.12 annually

Terms of Employment: Permanent employment, Full time

Starts: As soon as possible

Vacancies: 1 vacancy

Advertised Until:

2025-05-03