Lim Seng
Advanced Services Engineer at Arista Networks
Singapore
Summary
👤
Senior🎓
Top SchoolLim Seng is an Advanced Services Engineer based in Singapore with 9 years of hands-on experience designing and operating large-scale enterprise and carrier networks. He has led architecture and delivery for global backbone and SD-WAN services at firms like Expereo and Singtel, and now focuses on advanced services at Arista Networks. His work spans network automation, POP backbone design, high-performance research links (including 100G and a 500Gbps A*STAR deployment), and Tier 3/4 operational support for complex environments. A pragmatic technologist and effective communicator, he bridges pre-sales, delivery, and operations while mentoring teams and producing training content. He contributes to open-source network automation—having added features to Arista’s widely used AVD project—demonstrating depth in automation and templating for device configuration. Colleagues rely on him to turn intricate routing, automation, and migration challenges into reliable, production-ready solutions.
9 years of coding experience
10 years of employment as a software developer
Bachelor's degree, Computer Science, Bachelor's degree, Computer Science at University of Portsmouth
Github Skills (10)
eos10
network-automation10
ansible-galaxy10
aris10
aries10
jinja210
ansible10
python9
bgp8
documentation7
Programming languages (3)
Github contributions (5)
aristanetworks/avd
Jun 2021 - Jul 2022
Arista AVD: Architect Validate Deploy
Role in this project:
Back-end & DevOps Engineer
Back-end & DevOps EngineerContributions:28 reviews, 7 commits, 7 PRs in 1 year
Contributions summary:Lim contributed to the Arista AVD (Architect Validate Deploy) project, focused on automating network configurations using Ansible. Their work included implementing new features for the `eos_cli_config_gen` role, specifically adding support for features like MLAG heartbeat intervals, system control-plane configurations, segment routing, and route redistribution. They also made code changes to documentation and templates, updating the output of configuration.
cvpjinja2cloudvisionnetwork-automationcloudvision-portal
sengarth/ansible-avd
Jun 2021 - Jul 2023
Ansible Arista Validated Design
Contributions:85 pushes, 17 branches in 2 years
ansiblearistavalidated
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