Work History
Iercosan
Paul
Network Administrator
Business-minded engineer with experience in supporting network environments. Determined and
focused in managing network infrastructure and optimizing environment while increasing redundancy.
An enthusiastic professional in troubleshooting complex problems and reaching innovative solutions
while adhering to rules and requirements of project scope. Dynamic team player when interfacing with
2015-04
-
Current
Network Administrator
Hella Romania
,
Timisoara
,
România
Environment:
Team of 20 Engineers.
Networking support for more than 100 locations and operate more than 3600
switches.
Responsibilities:
Installing, configuring and supporting local area network (LAN).
Designing and operating Core and Access switching infrastructure.
Designing and operating Datacenters switching infrastructure (up to 100Gbit/s).
Designing and operating shop floor network, separated networks for production
lines.
Performed day-to-day LAN and WAN administration, maintenance and support.
Monitor, support and troubleshooting.
Configuring networks to ensure smooth, reliable operation to meet business
processes and objectives.
Performing system maintenance and upgrades, including patches, service packs,
hot fixes and new security configurations.
Participating in on-call rotations during holidays and weekends to handle
emergency network situations.
Maintaining network hardware and software and monitoring network to ensure
network availability to end users.
Data Center technology based on Alcatel-Lucent Omniswitch OS6900/OS6860 for
L3 and Alcatel-Lucent Omniswitch OS6450/OS6350 for L2.
Key Achievements:
LAN roll out in EMEA. Replaced very old hardware (Cisco or Alcatel) with the
existing standard in a few sites from Spain, France, Poland, Germany.
LAN integration of new locations (HGS, FTZ and Interteam) acquired by the
company.
Fixed the wrong design of PTC Integrity application of slow throughput transfer
between main and proxy servers. Implemented a new design that led to an
E-mail
LinkedIn
https://www.linkedin.com/in/iercosan-
paul-583a5413
WWW
https://paulierco.ro/
Address Timisoara, Romania, 300756
Phone 004-075-4023277
Education
Languages
improvement (up to 15 times faster) using the new BBR TCP algorithm.
Responsible for driving the infrastructure monitoring (switches, routers and
firewalls). Oxidized to backup configuration from all devices. LibreNMS with
Oxidixed output in LibreNMS. Design and developed in PHP MIB's from
Alcatel/Mcafee/CheckPoint to discover many sensors in LibreNMS. Graylog for
logs with output in LibreNMS web interface trough API. Grafana with InfluxDB,
including Icinga. Elastiflow for sflow and netflow monitoring. Training for the rest of
the team.
Responsible/owner of the network isolation for the production lines. In the middle
of deploying 3000 FW (Fortinet) World Wide.
Deployment Radius Auth. to more than 4000 devices with Ansible.
2013-10
-
2015-04
Network Engineer
CIPGSM DEAL
,
Arad
,
România
Environment:
Team of 8 Engineers.
Networking support for local and remote contractors.
Responsibilities:
Administering and designing LANs, WANs internet/intranet.
Network connectivity troubleshooting.
Local and remote support for many companies worldwide.
Cisco & HP switch configuration in particular VLAN configuration/troubleshooting.
Administering VMware 5.5 Cluster Servers. Using VEEAM for backup.
Design and implement wireless networks 10km away with WDS technology.
Install and maintain numerous sites based on Cisco Infrastructures.
Monitor network capacity and performance, as well as diagnosing and resolving
complex network problems.
Providing site-to-site VPN to small locations.
Key Achievements:
Implement a monitoring SNMP tool (LibreNMS) for network devices and Grafana
for analytics.
2010-08
-
2013-10
Network Administrator
Transilvania Topo
,
Oradea
,
România
Designing and developing computer networks based on Cisco Hardware.
Designing a FTP access server for 50 employees.
Designing a website with management regarding work status for clients.
Designing and implementing a NAS server to backup all company's workstations,
worked here with Acronis.
2008-09
-
2012-07
Engineer Degree
:
Electrical, Electronics And Communications
Engineering
University of Oradea
-
Oradea
Specialization: Networking and Software
Certifications & others
Skills
English
Very Good
2017-12
VMware Certified Professional 5 - Data Center Virtualization
2018-06
CCNP Cisco IP Switched Network
2019-02
Linux NDG Essentials, I and II
2009-12
Driving license, CAT B
SNMP Monitoring
Excellent
Networking and routing protocol expertise
Good
LAN switching technologies
Excellent
Firewall management tools
Very Good
Network performance monitoring
Excellent
Python and Bash proficiency
Average
Datacenter network implementations
Excellent
802.1x experience
Good