Eric Löwgren
Head Of Network at GleSYS
Stockholm County, Sweden
Summary
🤩
Rockstar🎓
Top SchoolEric Löwgren is a seasoned network leader with 11+ years of hands-on experience building and operating resilient network platforms, currently serving as Head of Network at GleSYS and Portlane. He combines operational leadership with deep technical craft—BGP, OSPF, high-availability design and Unix-based systems—shaping infrastructure from architecture through vendor negotiations and datacenter migrations. A pragmatic engineer who still codes, Eric contributes to notable open-source projects like oxidized (network device backup) and vrnetlab (virtual routers in Docker), improving device model support and automation for complex vendor platforms. His background as a CTO/consultant and early work on DNS hosting and BGP policy design reflect a rare blend of systems programming, automation, and operational security. Based in Stockholm, he brings an operator’s eye for reliability and a developer’s drive to automate repetitive tasks at scale.
11 years of coding experience
11 years of employment as a software developer
IT-GymnasietIT Security and Operations, IT Security and Operations at KY-AkademienHögsboskolan
Swedish, English
Github Skills (22)
nxos10
network-configuration10
docker10
jinja210
bash10
dockers10
networking10
backup10
network-automation10
ssh10
mikrotik9
ruby9
cisco9
juniper9
automations8
Programming languages (7)
Github contributions (5)
vrnetlab/vrnetlab
Aug 2016 - Nov 2021
Run virtual routers with docker
Role in this project:
DevOps Engineer & Network Automation Engineer
DevOps Engineer & Network Automation EngineerContributions:37 commits, 24 PRs, 5 pushes in 5 years 3 months
Contributions summary:Eric primarily contributed to automating and enhancing the functionality of virtual routers within a Docker environment. Their work included developing shell scripts (`vrnetlab.sh`) to simplify router access, bridge creation, and configuration. They also added example configuration templates for different router types (Junos, Cisco IOS-XR, and Cisco IOS) using Jinja2, enhancing the automation capabilities. Additionally, they focused on improving the usability of the environment, such as automatically pushing configurations and optimizing the login process.
netmikocsr1000vvmxdocker-imageesxi
ytti/oxidized
Aug 2014 - Dec 2018
Oxidized is a network device configuration backup tool. It's a RANCID replacement!
Role in this project:Backend Developer
Backend DeveloperContributions:14 commits, 5 PRs, 2 comments in 4 years 4 months
Contributions summary:Eric primarily contributed to enhancing the `oxidized` network device configuration backup tool. Their work involved implementing and refining device model support for specific network hardware, particularly focusing on PowerConnect, NXOS, Mikrotik, and FiberDriver devices. This included adding new models, modifying existing ones to handle device-specific configurations and output, and addressing issues related to changing outputs and terminal settings to ensure proper configuration retrieval. They also removed telnet support and fixed existing issues.
nmsoxidizedrancidbackup-toolnetwork
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