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

other staff members, vendors and end-users.

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

[email protected]

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