Jian Li
Network Engineer at China Unicom Europe- Claim this Profile
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Mandarin Native or bilingual proficiency
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English Professional working proficiency
Topline Score
Bio
Credentials
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Learning CentOS Linux
LinkedInMay, 2020- Sep, 2024 -
ITIL Operational Support and Analysis (ITIL-OSA)
EXIN your ICT competence partnerFeb, 2015- Sep, 2024 -
Cisco Certified Specialist - Security Core
CiscoFeb, 2012- Sep, 2024 -
Cisco Certified Internetwork Expert Security (CCIE Security)
思科Feb, 2012- Sep, 2024
Experience
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China Unicom Europe
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United Kingdom
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Telecommunications
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1 - 100 Employee
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Network Engineer
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Jan 2021 - Present
Network and System integrated project. Network and System integrated project.
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Amazon Web Services (AWS)
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United States
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IT Services and IT Consulting
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700 & Above Employee
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Network Operations Engineer
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Dec 2019 - Nov 2020
My responsibility includes maintaining AWS Data Center network, such as troubleshooting and fixing device issues (hardware/software/configuration), supporting onsite engineers as on-call and other projects, like massive devices OS upgrade, configuration update and etc. My responsibility includes maintaining AWS Data Center network, such as troubleshooting and fixing device issues (hardware/software/configuration), supporting onsite engineers as on-call and other projects, like massive devices OS upgrade, configuration update and etc.
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SUEZ
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France
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Environmental Services
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700 & Above Employee
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Network Engineer
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Sep 2013 - Feb 2018
For network: I achieved to reconstruct the business network of Beijing office and connected it with other branches in other Asian cities via IPSec VPNs. I continued to maintain and optimize the network structure and to add new functions. The network technologies were related to route, switch, VOIP, wireless and VPN. The devices were including Cisco switch, router, AP, Voice manager and IP-phone, firewall; Checkpoint firewall; H3C switch and so forth. For server and system: except for the common management, including routine check, environment supervises and error report. I introduced several new systems and renew some existed systems, such as Landesk system, Backup system, Canon printer system, network monitor system (Whatsup Gold). In addition, I was also in charge of the server management, physical servers and VMs. Furthermore, I was also responsible for communicating with HQ (in Paris) teams and implementing the HQ strategies and cooperating with colleagues internationally. Show less
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Network Engineer
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May 2012 - Aug 2013
Network and server security maintenance for a customer's company. Network and server security maintenance for a customer's company.
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Network Engineer
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Apr 2011 - Mar 2012
Work Description：Network system integration, in charge of network construction and network security. Running and maintaining network system and configuration series routers, switches, and firewalls of CISCO. Work Description：Network system integration, in charge of network construction and network security. Running and maintaining network system and configuration series routers, switches, and firewalls of CISCO.
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Network Engineer
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Apr 2010 - Mar 2011
Work Description：Implement, maintain network and system integration project. Work Description：Implement, maintain network and system integration project.
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Education
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2018 - 2019
Trinity College Dublin
Master's degree, Computer Science - Future Networked Systems -
2012 - 2014
Beijing University of Posts and Telecommunications
Bachelor's degree, Computer Science and Technology -
2007 - 2010
Institute of Disaster Prevention
Junior College, Computer Network Technology
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