Key projects:Solution architect for a complex scope of pre-sales proposal to Deutsch Bahn: Workflow, Charging and Billing System, Inventory management, TAP roaming and account and tariff management systemsJan 2012 till May 2013: Sunrise Communications AG project, Zurich. Leading engineer role in Billing replacement project, focused on real-time interfaces of Online Charging System: diameter-based integration of OCS with Service Delivery Platforms like PCRF, SCP, SMSC, GGSN; end2end solution delivery, including requirement analysis, interfaces design, implementation (based on Orga’s framework) and production launch.May 2011 till Dec 2011: Integration projects for Vodafone, Duesseldorf and Sandvine. Solution architect and tech leader for a team of 6 people: team has delivered fully operational custom Online Charging System with PCRF solution integrated. Nov 2009 till April 2011:billing migration projects for Astelit, Kiev and Kcell, Almaty. Took various roles upon pending project needs: configuration, installation and integration of different software components.
As a test engineer designed, build up and setup automated test laboratory for VoIP gateways. This included unix-based test system configuration and deployment, test cases and test libraries development (on TCL) and automated test environment development (on Perl). As daily tasks run tests and analyzed test results.
Configuration, maintenance and monitoring of VAS platforms and services: SMSC, MMSC, WPBX, USSD systems; bug analysis and reporting; developed monitoring system on a set of bash/awk scripts.