• Part time specialist/consultant in conjuction with doctoral work at Aalto University (04-2009-12/2011)
• Full time (01/2012)-
• Advania AB acquired Vintor Oy in 2019

• Development of various 'in-situ' network analysis tools used for assessing network performance and behavior as well as troubleshooting.
• Design and implementation of IP WAN networks with opportunistic routing over multiple unreliable paths (satellite and other wireless links), based on technologies including basic dynamic routing approaches and more highly refined Cisco DMVPN and SD-WAN approaches.
• Designing and and implementing reliable voice quality in IP voice networks.
• Network security architecture design and implementations including everything from simple VPN policies to application-aware firewall deployments. Most familiar products are Cisco ASA/Firepower line.
• Miscellaneous minor programming tasks, primarily scripting (Python or Linux shells) or implementing certain M2M/IoT service functionalities in C.
• Designing and implementing databases, as well as creating reporting from contents of said DBs, primarily based on MSSQL and MySQL.
• Zylinc switchboard and service center design and implementations in several mission-critical environments, with reliability and soft fallbacks in place.
• F5 Big-IP Load balancer deployment and configuration in conjunction with Vintor’s Microsoft Skype for Business (on-premises) deployments.
• Design and development of Vintor’s network operations (NOC) environment, including selection and deployment of network monitoring platform
• Network connectivity to cloud services, especially with Microsoft Azure, including appliance-based VPNs, ExpressRoute and Azure native VPNs
• Wireless LAN design and deployment to provide optimal performance both from coverage and capacity perspectives.
• Involved in design and implementantion of a global multi-provider VoIP service for a customer with multiple internal PBXes, including Cisco CUCM and MS Teams DirectRouting. Most of work conducted with Audiocodes Mediant platform.

I was a researcher at Helsinki University of Technology, Department of Communications and Networking. Bulk of the work was related to Future Internet Project and conducting research for my doctoral dissertation.

• Trainee/M.Sc Thesis worker (05/2000-06/2002)
• R&D Specialist (06/2002-04/2006)
• Senior Network Architect (04/2006-)

I've obtained the bulk of my service provider-related work experience in R&D of Sonera and later Teliasonera corporations. During my trainee period, I became familiar with the functionality of different IP-network elements, especially in relation to performance testing. My competence later expanded towards mobile networks, where I initially designed and implemented a system to measure performance of the gateway node between mobile core and other networks. During the post-graduation career, I've participated in numerous and varied projects, of which the most important ones have been

• Working as an expert in Intelligent GGSN project. The objective was, after Teliasonera-merging, to homogenize the diverse vendor base in various mobile network cores around the Nordic countries to achieve synergy benefits. My role included evaluating several different vendors both on paper and in practical lab experiments and giving recommendation on the best choice from technical perspective.
• Several IPv6-related projects, where the goals were to eventually start up IPv6 technology offerings from Teliasonera.
• Acting as a security specialist in several TEKES (Technology advancement center of Finland)-funded projects. After long experimenting and development period with various security-related tools, one of the highlights include a company wide documentation on how to validate the robustness of any new technologies, software and hardware, from security perspective.
• Standardization work in IETF organization and collaboration with Finnish research organizations as part of TEKES-funded Mercone, WiseCiti and FI ICT SHOK projects. Primary standardization topic was enabling virtual operators by utilizing Mobile IP. Other topics have included vertical handover handling between various network technologies and initial introduction of P2PSIP towards corporate deployments.
• Participation in next generation managed corporate network project, which covers managing customer network users across various network access technologies and the security of their workstations and other terminals.

Experience from three semesters on the mandatory course given to all new TUT students, detailing usage of basic office software and TUT's systems, such as course registration.

Certification will remain active until 7/2027

Defense held on August 17, 2012. Doctoral research conducted as part of other work.