Marcus Johansson
Network Technician at Ellos Group
Borås, Sweden
Summary
👤
Senior🎓
Top SchoolMarcus Johansson is a seasoned network and security specialist with over 10 years of experience and a career spanning hands-on LAN/WAN, wireless and datacenter infrastructure. Based in Borås and currently at Ellos Group, he architects and operates resilient networks using HPE/Aruba, Cisco IOS-XE, Cisco 9800 controllers, and Check Point firewall clusters. He brings deep, certified expertise (Master ASE HP Procurve, AIS HP, Cisco Wireless Expert) and a track record of complex migrations—QoS and VoIP over redundant WAN/LAN, BGP multi-homing, and SD-WAN with 4G/LTE failover. Marcus also manages ADC and SSL VPN platforms (Citrix Netscaler, Ivanti Connect Secure), and runs comprehensive monitoring with OP5, NetFlow and sFlow. Not obvious from titles: he routinely combines vendor-certified best practices with practical automation and tooling for scalable operations across distributed sites. His background in datanätteknik and long consultancy experience enable him to translate business needs into reliable, auditable network designs.
10 years of coding experience
university degree, Datanätteknik, university degree, Datanätteknik at Jönköping University
Swedish, English
Github Skills (82)
opensearch10
distributed-computing10
elasticsearch10
stream-processing10
computation10
scalability10
search-engine10
in-memory10
hazelcast10
storage10
java10
caching10
low-latency10
restful10
mybatis9
Programming languages (5)
Github contributions (5)
kuseman/payloadbuilder
Oct 2020 - Feb 2023
SQL query engine
Contributions:53 commits, 112 PRs, 487 pushes in 2 years 4 months
queryquery-enginemysqlsqlquery-language
kuseman/queryeer
Apr 2022 - Mar 2025
Query IDE based on payloadbuilder library
Contributions:60 PRs, 201 pushes, 72 branches in 2 years 11 months
queryphpide
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