Personal details

Tomasz W. - Remote back-end developer

Tomasz W.

Based in: 🇵🇱 Poland
Timezone: Warsaw (UTC+2)

Summary

A voice engineer with extensive analytical and software experience of investigating and diagnosing network problem and also knowledge of IT operating systems. Extensive experience with VoIP and telecom equipment, standards and technologies.

Work Experience

VoIP Developer / Engineer
Zwei Löwen mediawerk GmbH | Aug 2021 - Present
Node.js
Perl
MySQL
Git
Linux
Ubuntu
Debian
Jira
SIP
Asterisk
GitLab
VoIP
Docker
TCP/IP

· Managed Asterisk PBX and Kamailio servers (MySQL, Shell Scripting, AGI PHP, Perl, Dial-Plan) in virtualized environments (Debian, Ubuntu).

· CallCenter Customization / VoIP Development.

Management, administration and support of VOIP networks; SIP Gatekeepers, Gateways/Routers, ISDN E1/T1, PSTN, and GSM/CDMA integration

PBX Administrator / Developer
Projekt Market Sp. z o.o. | Feb 2014 - Feb 2021
PHP
Node.js
MySQL
Linux
CentOS
Debian
Speech Recognition
VMware
SIP
Asterisk
VoIP
TCP/IP

· Managed the configuration, deployment, and administration of LAN, WAN, VPN, Firewall, Gateways, AP, Router, ISDN (Zyxel, Fortigate, Patton, TLink), VLANs, VoIP.

· Administration and maintenance of virtualized environments (VMware, Virtualbox, KVM, Docker) for Linux (Debian, Centos, Ubuntu) and Windows Server (2008,2013,2016) platforms.

· Blockchain administration on-premises and cloud environment. Creation, management and monitoring of customers DLT nodes (NodeJS, XML, Json, MySQL, SQLlite)

Education

Vienna University of Technology
Bachelor's degree・computer science
Oct 1997 - May 2002