Experience

Linaro

• United Kingdom
• Software Development
• 100 - 200 Employee

• Senior Tech Lead

  • Jan 2023 - Present

• Tech Lead

  • Jun 2018 - Jan 2023

• Engineer

  • Sep 2017 - Jun 2018



Oxygen Broadband

• Greece
• Telecommunications
• 1 - 100 Employee

• Software Engineer

  • Dec 2011 - Sep 2017

  Worked of a wide variety of linux drivers including ethernet, wireless, voice DSP, NAND controllers, SPI controllers amongst others. Hands on experience on u-boot. Designed and implemented an Asterisk channel driver for FXS/ISDN. Coded IPv6/SSL features into asterisk. Development on asterisk to support numerous RFC standards. Development of custom encrypted(SSL based) firmware upgrade procedures. Porting and integration of MPTCP. Porting and integration of… Show more Worked of a wide variety of linux drivers including ethernet, wireless, voice DSP, NAND controllers, SPI controllers amongst others. Hands on experience on u-boot. Designed and implemented an Asterisk channel driver for FXS/ISDN. Coded IPv6/SSL features into asterisk. Development on asterisk to support numerous RFC standards. Development of custom encrypted(SSL based) firmware upgrade procedures. Porting and integration of MPTCP. Porting and integration of Grsecurity. Active developement on buildroot with patch submissions. Customization and development on buildroot to support ongrowing company products. Developed a complex solution to enchance traffic shaping on the CPE in cases if heavy load. Involvement in implementing various GPON ITU standards on the products. Installation and maintanance of local git servers. Installation and maintanance of ESXi. Creation of virtual machine images for Oxygen hardware testers. Show less Worked of a wide variety of linux drivers including ethernet, wireless, voice DSP, NAND controllers, SPI controllers amongst others. Hands on experience on u-boot. Designed and implemented an Asterisk channel driver for FXS/ISDN. Coded IPv6/SSL features into asterisk. Development on asterisk to support numerous RFC standards. Development of custom encrypted(SSL based) firmware upgrade procedures. Porting and integration of MPTCP. Porting and integration of… Show more Worked of a wide variety of linux drivers including ethernet, wireless, voice DSP, NAND controllers, SPI controllers amongst others. Hands on experience on u-boot. Designed and implemented an Asterisk channel driver for FXS/ISDN. Coded IPv6/SSL features into asterisk. Development on asterisk to support numerous RFC standards. Development of custom encrypted(SSL based) firmware upgrade procedures. Porting and integration of MPTCP. Porting and integration of Grsecurity. Active developement on buildroot with patch submissions. Customization and development on buildroot to support ongrowing company products. Developed a complex solution to enchance traffic shaping on the CPE in cases if heavy load. Involvement in implementing various GPON ITU standards on the products. Installation and maintanance of local git servers. Installation and maintanance of ESXi. Creation of virtual machine images for Oxygen hardware testers. Show less



Commsquare

• Belgium
• Telecommunications
• 1 - 100 Employee

• Freelance Software Engineer

  • 2014 - 2015

  Fixed thoughput from under 30Mbits/second to 150Mbits/second on specific LTE devices, Developed a python API to allow http cli-based control of LTE devices. Added support for multiple PCI/USB LTE devices on their linux based OS. Fixed thoughput from under 30Mbits/second to 150Mbits/second on specific LTE devices, Developed a python API to allow http cli-based control of LTE devices. Added support for multiple PCI/USB LTE devices on their linux based OS.



Gennetsa

• Software Engineer

  • Jun 2009 - Dec 2011

  Firmware development of xDSL supporting multiple architectures (arm, mips, powerpc) and vari us kernel versions. Debugging/enhancements on a number of wireless drivers from ralink/atheros. Design and implementation a number of features for asterisk. Hands on technical support concerning SIP functionality and interoperability of the products. Devemopment of a perl framework for automated hardware testing, detecting malfunctions at the manufacturing/assembly stage. Consulting… Show more Firmware development of xDSL supporting multiple architectures (arm, mips, powerpc) and vari us kernel versions. Debugging/enhancements on a number of wireless drivers from ralink/atheros. Design and implementation a number of features for asterisk. Hands on technical support concerning SIP functionality and interoperability of the products. Devemopment of a perl framework for automated hardware testing, detecting malfunctions at the manufacturing/assembly stage. Consulting with clients in order to customize the product for their network specs and requirements

• Network Administrator

  • Jun 2006 - Jun 2009

  Designed and configured the initial companies network which was a mix of open source technologies and Cisco equipment. Designed and built a complex testbed for the companies products. The lab was comprised of xDSL DSLAMS, Cisco routers/switches and a large variety of open source technologies. Setup revision control/bugtracking services for the software development team.



Intracom Telecom

• Greece
• Telecommunications
• 700 & Above Employee

• Junior Software Engineer

  • Dec 2004 - May 2006

  Created perl tools to automate CPE testing procedures. Designed and implemented the firewall and traffic shaping/queuing functionality of the CPEs

• Junior Network Engineer

  • Dec 2003 - Dec 2004

  We created a lab with various services ranging from http/ftp servers to SIP PBX and proxies in order to simulate the operation of real ISPs, used for CPE debugging purposes. Installation and maintenance of Subversion and Bugzilla for the software development department.



Mavrikos Imports

• Greece

• System Administrator

  • Aug 2002 - Jun 2003

  Installed new DSL lines to support the companies ongrowing network. Design an implementation of a linux based firewall, using iptables and snort. Migration of file sharing services from windows to linux. Migration of SQL databases from windows to MySQL Installed new DSL lines to support the companies ongrowing network. Design an implementation of a linux based firewall, using iptables and snort. Migration of file sharing services from windows to linux. Migration of SQL databases from windows to MySQL



FAGE

• Luxembourg
• Dairy Product Manufacturing
• 100 - 200 Employee

• System Administrator

  • Aug 1999 - Jun 2000

  Installation of nagios network monitoring. Maintenance of various linux based services, such as Bind, squid and samba amongst others. Installation of nagios network monitoring. Maintenance of various linux based services, such as Bind, squid and samba amongst others.