Károly Bálint available

Károly Bálint

Freelancer Network Engineer

Profileimage by Kroly Blint Freelancer Network Engineer from Ottobrunn
  • 85521 Ottobrunn Freelancer in Germany
  • Graduation: Dipl.-Informatiker (FH)
  • Hourly-/Daily rates: not provided
  • Languages: German (business fluent) | English (business fluent) | Hungarian (first language)
  • Last update: 08.05.2018
Profileimage by Kroly Blint Freelancer Network Engineer from Ottobrunn
German CV
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English CV
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Cisco Certificates
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EIGRP, OSPF, WAN, BGP, Switches, VoIP, VPN, Cisco, CCNP, Routers, Gateway, Servers, CCNA, Routing, QoS, Network Engineering, Network Design, RIP, TCP/IP, Network Administration, Cisco Call Manager, IP, MPLS, Cisco IOS, LAN/WAN, VLAN, DHCP, Windows Server, System Administration, Cisco Technologies, LAN-WAN, Cisco ASA/ASA-X, Data Center, IPSec, Routing Protocols, Cisco Nexus 2000-7000 Series, IPv6 Adressing, IPv6 Routing, Juniper SRX/SSG, Juniper J Series Routers, Juniper ISG Firewall, Juniper EX Series Switch


Landeshauptstadt München / it@M, München
Netzwerk Spezialist
03.2017 - 09.2017

Finanz Informatik Technologie Services, Haar bei München
Freelancer Netzwerk Spezialist
06.2016 - 03.2017

Porsche AG, Stuttgart
Freelancer Network Engineer
07.2014 - 05.2016

Dimension Data Germany AG , Hallbergmoos (Germany)
System Engineer UC/NI
08.2011 - 07.2014
Key points: Integrator company with International customers, implementation of Cisco voice and other network components or complete networks. Manufacturer-independent consultancy and implementaion. Approx. 2000 employes in Germany.

- Creation of concepts for the implementation and operation of equipment in an existing customer environment
- Troubleshooting via Remote-Login and On-site
- Conducting workshops and presentations
- Participation in Part-time or Full-time projects in R&S, Voice and Wireless field at Airbus (EADS), Allianz, BMW AG, C&A, COLT Technology Services, Deutsche Bank, DHL, Good Year, Hella, IBM Deutschland, Kaufland, Kabel Deutschland, LEONI AG, MAN, O2, Osram, Panasonic, Rehau, Sparkasse, Telefonica, WWK Versicherung.
- Voice Network migrations at different Customers (Leoni AG, REHAU..) at different offices (Neuburg a. D. Donau, Muri bei Bern/Switzerland, München, Ingolstadt), making Workshops and teaching the users at the Customer site.
- Making 3rd level support at IBM Business Services Germany for the end customer MAN Nutzfahrzeuge/Truck&Bus/Diesel&Turbo. Making troubleshooting, project implementation, new device installation and replacement at Karlsfeld, München, Augsburg, Neufahrn, Nürnberg, Salzgitter, Oberhausen locally.
Information Technology and Services
10,001+ employees

AT&T Global Services, Bratislava (Slovakia)
Voice Engineer
09.2009 - 07.2011
- Configration of Cisco VG224/248, Callmanager 3.x - 7.x and Unity 4.x – 7.x, CUE and CME, CER, IPCC devices for customers, configuring new customer offices after the approved designs, investigating customers VoIP problems. Making necessary maintenance and software installations on servers, routers and gateways.
- Working with AT&T Ticket system, Prognosis IP Telephony manager and Change Management processes.
- Installation or upgrade the existing Callmanager or Unity servers, based on Customer request or contract at for example (Lexmark, General Motors, Flowserve, Ford Motor Co., Eli Lilly, Cognizant...).
- Working on Site migrations because of new Voice Hardware or Design (Cisco CUCM, Voice GW, Unity, Cisco IP Phones), making Voice Infrastructure testing with the customer after the migration.

Interware ISP, Budapest (Hungary)
Network Engineer
08.2008 - 12.2009
Key points:
- ISP and Server-hosting environment with 99.999% SLA to our customers. The VSS system is implemented to increase this to fully redundant 100% availability. Implementing new technologies (Ipv6, QoS) to stay competitive. Peering with Hungarian ISP\\'s, Budapest Internet Exchange and with International Providers (Telia, Interoute) as well. Approx. 60,000 customers (Radio Channels, News portals, TV Channels, Trading companies...)

- Eliminate star topology / one point failure problems, create implementation plan to the fully redundant topology, implementation and working with MPLS and MPLS VPN technology, designed and implemented Virtual Switching technology into Datacenter for Serverhosting. Implementation of QoS technology at VoIP customers, IPv6 technology into Interware network
- Using BGP, OSPF, EIGRP routing protocols, configuration and supply Cisco 7600;7200;3600;2800; 2600;800 series routers, 6500;4500;3750;3560;3550;2960;2950 series switches, Force 10 S-Series devices
- Pre-Sales / Post-Sales activity based on prospective customers demands, testing the recommended solutions based on customer requests (Firewall policies, R&S solutions, device hardening).
- Connecting ADSL (approx. 20000 customer) and Leased Line (approx. 500 customer) customers into Interware network, solving the appearing problems reported by customers, customer support or NOC
- Implementation, installation of Juniper SS5/Cisco ASA\\Pix firewalls, Draytek Vigor / Linksys/ Cisco / 3COM routers based on customer demands, supervising the network with Solarwinds Orion NPM, NCM and MRTG, Cacti, Nagios softwares
- Replacement of old Panasonic PBX based telephone system to Asterisk Voip server and Linksys IP Phones to Interware main office and branch office.
- Configuration of VoipGW’s (Cisco AS5400, AS5350, 2811 router), SÍP or H.323 trunks, Interware office IP phones, investigating customers VoIP problems, making configuration changes based on customer demands,
Information Technology and Services

Bridgestone, Tatabanya (Hungary)
IT Engineer
02.2007 - 08.2008
Key points:
- Highly available production company with redundant networking and nonstop tire producing. Redundant wired and wireless network for office and production area with approx. 3000 endpoints and 100 servers. The plant capacity was 2 minute / tyre (planned 8000 tyre /day). Redundant IPSec WAN connection to Bridgestone European Headquarters. Strong network security becasue of secret fully automatic, first in Europe production technology.
- Maintaining, installing application servers (DC, WSUS, Application servers, file+print servers, Exchange 2003 server) on HP Blade and on DL servers, approx. 100 servers, supporting users and onsite IT devices.
- Supervising servers and network with HP Openview, HP Insight Manager, Nagios, MRTG, Cacti
- Maintaining, installing, configuring Cisco devices (6500, 4503, 3750, 3560, 2960 series switches, 2800/1800 series routers), using OSPF routing protocol, Rapid-Spanning Tree, HSRP, Etherchannel, ACL, Port-security, Auto QoS, VLAN, VTP, IPSec VPN, TACACS + Radius authentication, Approx. 3000 endpoints.
- configuring and installing wireless network with 2 Cisco Wireless controller and 45 AP’s, configuring Cisco IP Telephones and Callmanager + Unity, using Tandberg MX series Videoconferencing system.
- Administering Cisco ASA5540 firewalls + IPS modules, Cisco MARS, NAC system, Cisco Security Agent and Management Center.

IBM Global Services, Szekesfehervar (Hungary)
IT Sytem Supervisor
02.2005 - 02.2007
- foreign partnercompany’s servers (Windows 2000/2003, AIX) monitoring, troubleshooting based on 1st and 2nd level rights. Using IBM Tivoli Desktop, Tivoli Enterprise Console, Netview and TSM softwares.
- in 2006 February I joined to the brand new 3rd level team where my responsibilities were supervising and trouble-shooting Windows 2000/2003 servers and Cisco devices/network (approx. 500-800 endpoint). I was primary serverpartner for 4 customer. Using Patchlink, TSM, VMWare ESX server softwares.

- In 2006 december I participated in project called „Transfer” across 2 weeks in Frankfurt in which my responsibility was to takeover the knowledge of customers servers (approx. 30 server) from german colleagues based on customer specifications, after the takeover in Székesfehérvár I became the primary serverpartner for these customers.
Information Technology and Services


Available from 01.09.2017 in Germany, Switzerland and Salzburg (Austria).


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