Highly skilled IT Professional with extensive experience in designing, deploying, and optimizing networks and network security.
Aktualisiert am 13.05.2024
Profil
Freiberufler / Selbstständiger
Remote-Arbeit
Verfügbar ab: 03.04.2024
Verfügbar zu: 100%
davon vor Ort: 100%
Cisco
Forescout
Arista

Einsatzorte

Einsatzorte

Schweiz
möglich

Projekte

Projekte

5 years 2 months
2018-10 - 2023-11

design, evaluation and certification of new products

Network product engineer
Network product engineer
Upon relocating to the United States, my role closely mirrored that of my previous position at Barclays. I continued to focus on the design, evaluation and certification of new products, ensuring alignment with Barclays? engineering and security standards. A pivotal project involved the certification and deployment of the VMWare NSX platform for Barclays? internal Cloud, contributing to enhanced infrastructure capabilities. Additionally, I took the lead in transforming the corporate WiFi system, providing technical guidance and overseeing the project?s successful implementation. Beyond these responsibilities, I offered valuable advice and guidance to project teams and played a key role in the development of automated network device compliance checks using Ansible. These initiatives reflect my commitment to maintaining high standards, implementing innovative solutions, and providing strategic support to project endeavors.
Barclays Service company 400 Jefferson Park, Whippany NJ
6 years 4 months
2012-07 - 2018-10

certifying new network products

Connectivity Data Engineer
Connectivity Data Engineer
Responsible for certifying new network products, maintaining their lifecycle, and contributing to the design and architecture of innovative network solutions. Was working od Cisco ACI DC LAN design, ACI certification, and VMM integration with VMware and Openstack. Noteworthy achievements and projects, in reversed chronological order, include leading the certification, design, and build-out of Forescout NAC solution, developing an automated network device configuration framework to streamline processes, designing the network architecture for a cloud-based DMZ, reviewing and updating QoS standards, ensuring regulatory compliance for data network devices from security and technical perspective, selecting and certifying PFS (matrix-switch) platform, and conducting initial market research and evaluation of SDN WAN solutions. These experiences showcase my expertise in network optimization, security enhancement, and commitment to staying at the forefront of technological advancements in the field.
Barclays Technology Center Lithuania
3 years
2009-08 - 2012-07

GET VPN deployment

Network engineer
Network engineer
As one of the inaugural team members at the newly established Barclays Technology Center in Lithuania, I played a pivotal role in the center?s early development. Notably, I led the GET VPN deployment across Barclays Africa and the Middle East in-country WAN networks, successfully addressing regulatory audit requirements. In this capacity, I crafted the solution design and drove the deployment, encompassing 1300 WAN routers. Additionally, I served as the lead network engineer for the Western Europe WAN transformation, overseeing the insourcing from a full 3rd party managed service. I also played a key role in the remediation of Barclays Russia local and DC network, aligning it with global standards. Further contributing to the organization?s success, I actively participated in the development of the global routing standard and undertook various projects related to both "data" and "firewall" estate. Notable projects include the build-out of a new distribution block in one of the Barclays DC, server landing, and configuration of multiple firewall rules in DMZ, as well as the capacity expansion, along with numerous smaller initiatives.
Barclays Technology Center Lithuania
10 months
2008-10 - 2009-07

MicroLink (Norby Networks) reorganization

Senior Network Administrator
Senior Network Administrator
During my tenure at Baltnetos komunikacijos, an Internet Service Provider in Lithuania offering Internet, VPN, and VoIP services, I played a crucial role in the second stage of MicroLink (Norby Networks) reorganization. In October 2008, I coordinated the merger of the Networks department with Baltnetos komunikacijos. As part of this transition, I assumed responsibility for the administration of the ex-MicroLink network segment and actively contributed to the decision-making process for the new integrated network design and implementation.
Baltnetos komunikacijos, UAB
10 months
2008-01 - 2008-10

network design and operations

Senior network administrator
Senior network administrator
I was responsible for network design and operations Additionally, I played a pivotal role in the migration planning and design of the new network core, leveraging Alcatel?s MPLS/VPLS technology. This involvement contributed to the seamless evolution of the network infrastructure, ensuring its alignment with industry-leading standards and technologies.
Norby networks, UAB
3 years 7 months
2004-07 - 2008-01

design and operations of the ISP network core and edge

Senior network administrator
Senior network administrator
At Microlink, was a prominent internet, VPN, and data-center service provider across Estonia, Latvia, and Lithuania, I held a key position overseeing the design and operations of the ISP network core and edge. My responsibilities encompassed equipment configuration, troubleshooting, and active involvement in the Pan-Baltic (Lithuania-Latvia-Estonia) backbone design, transformation, and ongoing support. I played a crucial role in developing and implementing various VPN and network security solutions for our customers. Additionally, I took in pre-sales support and network and security audit services to our customers. Leading the development and implementation of a QoS strategy and policies for the VoIP service, I ensured optimal performance and quality. As part of my role, I was also responsible for managing network monitoring systems. These comprehensive contributions highlight my expertise in network architecture, security solutions, and commitment to ensuring top-tier service quality for our clients.
Microlink Lietuva, UAB
3 years 3 months
2001-05 - 2004-07

support and swiftly resolving network issues

Network administrator
Network administrator
In my role, I was responsible for the efficient operation of the network, providing field support and swiftly resolving network issues. This encompassed the configuration and administration of user access routers, switches, dial-up pools, and monitoring systems. My focus on ensuring seamless network functionality and prompt issue resolution demonstrates my dedication to maintaining optimal network performance and user experience.
Microlink Lietuva, UAB
1 year 2 months
2000-03 - 2001-04

Administration

Software developer/UNIX systems administrator Java PHP JavaScript ...
Software developer/UNIX systems administrator
Administration of DELFI.lt web portal (Linux, Apache, MySQL, Oracle). Did some software development.
Java PHP JavaScript Perl
DELFI, UAB
3 years 1 month
1997-02 - 2000-02

development of the interactive web-sites

Software developer
Software developer
I was working on development of the interactive web-sites (Perl, PHP, MySql), Linux/FreeBSD server and WEB service administration.
Skaitmenines komunikacijos, UAB

Aus- und Weiterbildung

Aus- und Weiterbildung

Certifications:

I was certified CCNA (2001) CCNP (2002) and CCIP (2004) also have passed CCIE RS and Security written exam a couple of times to re-certify, however in 2013 I have decided that there is no real value for me or for the employer to keep these certificates active.


1995 ? 1996

Vilnius Gedimino Technical University Lithuania

Faculty of Electronic Engineering - Industrial Automatics (discontinued)


1996 ? 1999

Vilnius University Lithuania

Faculty of Mathematics - Informatics (discontinued)


University of life

Lifetime learner in Network technologies, automation and IT security areas

After slight disappointment with the quality of formal engineering education available in ?90s in Lithuania I realized that I?m able to learn faster and more efficiently on my own. Continuously improving my knowledge and skills through books, online resources and lab practice

Kompetenzen

Kompetenzen

Top-Skills

Cisco Forescout Arista

Produkte / Standards / Erfahrungen / Methoden

Summary

  • Highly skilled IT Professional with extensive experience in designing, deploying, and optimizing networks within service provider and global enterprise environments. Broad experience implementing technology and security best practices and enforcing standards compliance. Proficient not only in network technologies but also have some network automation and Unix like system administration skills. Known for adaptability as a fast learner, capable of working under pressure to meet tight deadlines. Possesses strong analytical skills and a genuine passion for tackling and solving complex problems.
  • Current professional interests include but not limited to: Cloud networking, network automation, Network function visualization (NVF/SDN), network access control (NAC)


Skills

Deep knowledge of the IP protocols stack and solid understanding and broad experience with design and deployment of Service Provider, Data Center, corporate WAN/LAN and network security solutions.

  • Routers/Switches: Expert level knowledge of Cisco router and switch product line as well as Juniper and Arista.
  • Firewalls: FotiGate. Cisco ASA, Juniper, OpenBSD PF, Linux IPtables.
  • Cloud networking: VXLAN, VMWare NSX-V/T, Nuage, Openvswitch
  • L3: BGP, MP-BGP, OSPF, EIGRP, RIP
  • L2: STP, PVST, MSTP, PAgP, LACP, MLAG, dot1q and ISL VLANs, VSS and vPC, QnQ, ATM, FrameRelay, PPP, HDLC
  • VPN: MPLS-VPN, VPLS, EVPN, IPsec, DMVPN, GET VPN, OpenVPN
  • QoS: queuing architecture Cisco and Arista platforms, DSCP, CoS, WFQ and CBWFQ, LLQ, priority queuing, RSWP and MPLS TE, WRED
  • AAA: TACACS+, Radius, 802.1X, PKI
  • Automation/Scripting: Ansible, Ansible Tower, Python, Perl, Bash, GIT, CI/CD,
  • Monitoring and Performance management: SNMP, NETCONF, REST API, CA Sectrum, SevOne, Zabbix, Netscout Ngenius One, some experience whith Cisco NSO

Betriebssysteme

Linux
FreeBSD
Mac OSX
Windows

Einsatzorte

Einsatzorte

Schweiz
möglich

Projekte

Projekte

5 years 2 months
2018-10 - 2023-11

design, evaluation and certification of new products

Network product engineer
Network product engineer
Upon relocating to the United States, my role closely mirrored that of my previous position at Barclays. I continued to focus on the design, evaluation and certification of new products, ensuring alignment with Barclays? engineering and security standards. A pivotal project involved the certification and deployment of the VMWare NSX platform for Barclays? internal Cloud, contributing to enhanced infrastructure capabilities. Additionally, I took the lead in transforming the corporate WiFi system, providing technical guidance and overseeing the project?s successful implementation. Beyond these responsibilities, I offered valuable advice and guidance to project teams and played a key role in the development of automated network device compliance checks using Ansible. These initiatives reflect my commitment to maintaining high standards, implementing innovative solutions, and providing strategic support to project endeavors.
Barclays Service company 400 Jefferson Park, Whippany NJ
6 years 4 months
2012-07 - 2018-10

certifying new network products

Connectivity Data Engineer
Connectivity Data Engineer
Responsible for certifying new network products, maintaining their lifecycle, and contributing to the design and architecture of innovative network solutions. Was working od Cisco ACI DC LAN design, ACI certification, and VMM integration with VMware and Openstack. Noteworthy achievements and projects, in reversed chronological order, include leading the certification, design, and build-out of Forescout NAC solution, developing an automated network device configuration framework to streamline processes, designing the network architecture for a cloud-based DMZ, reviewing and updating QoS standards, ensuring regulatory compliance for data network devices from security and technical perspective, selecting and certifying PFS (matrix-switch) platform, and conducting initial market research and evaluation of SDN WAN solutions. These experiences showcase my expertise in network optimization, security enhancement, and commitment to staying at the forefront of technological advancements in the field.
Barclays Technology Center Lithuania
3 years
2009-08 - 2012-07

GET VPN deployment

Network engineer
Network engineer
As one of the inaugural team members at the newly established Barclays Technology Center in Lithuania, I played a pivotal role in the center?s early development. Notably, I led the GET VPN deployment across Barclays Africa and the Middle East in-country WAN networks, successfully addressing regulatory audit requirements. In this capacity, I crafted the solution design and drove the deployment, encompassing 1300 WAN routers. Additionally, I served as the lead network engineer for the Western Europe WAN transformation, overseeing the insourcing from a full 3rd party managed service. I also played a key role in the remediation of Barclays Russia local and DC network, aligning it with global standards. Further contributing to the organization?s success, I actively participated in the development of the global routing standard and undertook various projects related to both "data" and "firewall" estate. Notable projects include the build-out of a new distribution block in one of the Barclays DC, server landing, and configuration of multiple firewall rules in DMZ, as well as the capacity expansion, along with numerous smaller initiatives.
Barclays Technology Center Lithuania
10 months
2008-10 - 2009-07

MicroLink (Norby Networks) reorganization

Senior Network Administrator
Senior Network Administrator
During my tenure at Baltnetos komunikacijos, an Internet Service Provider in Lithuania offering Internet, VPN, and VoIP services, I played a crucial role in the second stage of MicroLink (Norby Networks) reorganization. In October 2008, I coordinated the merger of the Networks department with Baltnetos komunikacijos. As part of this transition, I assumed responsibility for the administration of the ex-MicroLink network segment and actively contributed to the decision-making process for the new integrated network design and implementation.
Baltnetos komunikacijos, UAB
10 months
2008-01 - 2008-10

network design and operations

Senior network administrator
Senior network administrator
I was responsible for network design and operations Additionally, I played a pivotal role in the migration planning and design of the new network core, leveraging Alcatel?s MPLS/VPLS technology. This involvement contributed to the seamless evolution of the network infrastructure, ensuring its alignment with industry-leading standards and technologies.
Norby networks, UAB
3 years 7 months
2004-07 - 2008-01

design and operations of the ISP network core and edge

Senior network administrator
Senior network administrator
At Microlink, was a prominent internet, VPN, and data-center service provider across Estonia, Latvia, and Lithuania, I held a key position overseeing the design and operations of the ISP network core and edge. My responsibilities encompassed equipment configuration, troubleshooting, and active involvement in the Pan-Baltic (Lithuania-Latvia-Estonia) backbone design, transformation, and ongoing support. I played a crucial role in developing and implementing various VPN and network security solutions for our customers. Additionally, I took in pre-sales support and network and security audit services to our customers. Leading the development and implementation of a QoS strategy and policies for the VoIP service, I ensured optimal performance and quality. As part of my role, I was also responsible for managing network monitoring systems. These comprehensive contributions highlight my expertise in network architecture, security solutions, and commitment to ensuring top-tier service quality for our clients.
Microlink Lietuva, UAB
3 years 3 months
2001-05 - 2004-07

support and swiftly resolving network issues

Network administrator
Network administrator
In my role, I was responsible for the efficient operation of the network, providing field support and swiftly resolving network issues. This encompassed the configuration and administration of user access routers, switches, dial-up pools, and monitoring systems. My focus on ensuring seamless network functionality and prompt issue resolution demonstrates my dedication to maintaining optimal network performance and user experience.
Microlink Lietuva, UAB
1 year 2 months
2000-03 - 2001-04

Administration

Software developer/UNIX systems administrator Java PHP JavaScript ...
Software developer/UNIX systems administrator
Administration of DELFI.lt web portal (Linux, Apache, MySQL, Oracle). Did some software development.
Java PHP JavaScript Perl
DELFI, UAB
3 years 1 month
1997-02 - 2000-02

development of the interactive web-sites

Software developer
Software developer
I was working on development of the interactive web-sites (Perl, PHP, MySql), Linux/FreeBSD server and WEB service administration.
Skaitmenines komunikacijos, UAB

Aus- und Weiterbildung

Aus- und Weiterbildung

Certifications:

I was certified CCNA (2001) CCNP (2002) and CCIP (2004) also have passed CCIE RS and Security written exam a couple of times to re-certify, however in 2013 I have decided that there is no real value for me or for the employer to keep these certificates active.


1995 ? 1996

Vilnius Gedimino Technical University Lithuania

Faculty of Electronic Engineering - Industrial Automatics (discontinued)


1996 ? 1999

Vilnius University Lithuania

Faculty of Mathematics - Informatics (discontinued)


University of life

Lifetime learner in Network technologies, automation and IT security areas

After slight disappointment with the quality of formal engineering education available in ?90s in Lithuania I realized that I?m able to learn faster and more efficiently on my own. Continuously improving my knowledge and skills through books, online resources and lab practice

Kompetenzen

Kompetenzen

Top-Skills

Cisco Forescout Arista

Produkte / Standards / Erfahrungen / Methoden

Summary

  • Highly skilled IT Professional with extensive experience in designing, deploying, and optimizing networks within service provider and global enterprise environments. Broad experience implementing technology and security best practices and enforcing standards compliance. Proficient not only in network technologies but also have some network automation and Unix like system administration skills. Known for adaptability as a fast learner, capable of working under pressure to meet tight deadlines. Possesses strong analytical skills and a genuine passion for tackling and solving complex problems.
  • Current professional interests include but not limited to: Cloud networking, network automation, Network function visualization (NVF/SDN), network access control (NAC)


Skills

Deep knowledge of the IP protocols stack and solid understanding and broad experience with design and deployment of Service Provider, Data Center, corporate WAN/LAN and network security solutions.

  • Routers/Switches: Expert level knowledge of Cisco router and switch product line as well as Juniper and Arista.
  • Firewalls: FotiGate. Cisco ASA, Juniper, OpenBSD PF, Linux IPtables.
  • Cloud networking: VXLAN, VMWare NSX-V/T, Nuage, Openvswitch
  • L3: BGP, MP-BGP, OSPF, EIGRP, RIP
  • L2: STP, PVST, MSTP, PAgP, LACP, MLAG, dot1q and ISL VLANs, VSS and vPC, QnQ, ATM, FrameRelay, PPP, HDLC
  • VPN: MPLS-VPN, VPLS, EVPN, IPsec, DMVPN, GET VPN, OpenVPN
  • QoS: queuing architecture Cisco and Arista platforms, DSCP, CoS, WFQ and CBWFQ, LLQ, priority queuing, RSWP and MPLS TE, WRED
  • AAA: TACACS+, Radius, 802.1X, PKI
  • Automation/Scripting: Ansible, Ansible Tower, Python, Perl, Bash, GIT, CI/CD,
  • Monitoring and Performance management: SNMP, NETCONF, REST API, CA Sectrum, SevOne, Zabbix, Netscout Ngenius One, some experience whith Cisco NSO

Betriebssysteme

Linux
FreeBSD
Mac OSX
Windows

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