L3 Network​/Linux Systems Engineer

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 (Net Box IPAM) and the low-level design documents that contains 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)
• 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 equipments in the Data Center
• Troubleshooting server hardware and deep tuning of Linux OS settings to achieve required performance
• Provide a breakdown of an issue to NOC supervisors to enable them to understand and explain the problem to the client.

• 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 platfrom 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 troubleshoot 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

• 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
• Experience using agentic AI tools, deploying self-hosted LLM to improve workflows/increase productivity

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.

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 down linked 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.