Svilenvalkov Resume Func 20080903

Svilen Valkov

M.Sc., MCDBA, MCSE

23 HillBank Tr., Brampton ON, L6S 1P6 ● 905-791-8239 ● [email protected] ● www.linkedin.com/in/svilenvalkov

OBJECTIVE Providing excellent professional services as Database Architect, DBA and System Administrator. HIGHLIGHT OF QUALIFICATIONS International expertise in large projects as a part of distributed European and American teams for over 8 years Problem solver with large outstanding history in dozens of projects and counseled management and clients Leader and positive communicator, responsible for defining timeframes, tasks, system architecture and design Multi-lingual in English (fluent), French (basic), German (good), Russian (fluent) and Bulgarian (fluent) TECHNICAL SKILLS Databases ● 8+ MS SQL Server 7/2000/2005 ● 5+ Oracle 9/10 ● 9+ Access ● 1+ Sybase ● 1+ PostgreSQL OS ● 9+ Windows NT/2000/2003 ● 7+ Linux Red Hat (CentOS), Debian/Ubuntu ● 1+ Unix Solaris Servers ● 7+ MS Exchange 5.5/2000 ● 7+ IIS 5/6 ● 5+ Apache ● 2+ Postfix ● 5+ SourceSafe ● 2+ SVN Platforms ● 3+ SugarCRM ● 2+ WordPress ● 2+ MediaWiki ● 2+ Project-Open ● 2+ Trac ● 2+ Gallery 2 Virtualization ● 5+ VMware ● 4+ Xen ● 5+ Virtual PC/Server ● 1+ KVM ● QEMU ● Chroot ● 3+ LinuxVserver Tools ● 6+ Visio ● 3+ Jdeveloper ● 4+ SQL Developer ● 5+ SQL*Plus ● 5+ Visual Studio ● 5+ Dia Languages ● 8+ T-SQL ● 6+ PL/SQL ● 7+ VBS/Cmd ● 5+ Bash ● 4+ ASP ● 10 + HTML/JS ● 7+ C/CGI EXPERIENCE Database Architect and Designer - Warehousing, ETL, BI, Credit and Risk Scoring § Conceptualized Data Architecture for enterprise systems and databases •Created standards, diagrams and infrastructure of the data schemes and configurations •Defined and enforced standards and conventions for data management in the organization •Developed system policies - multi-language, security, IOT nomenclatures and object templates § Consolidated ETL transformations for Oracle and SQL Server Bank Warehouses with up to 2 billion records •Transfered up to 300.000 rows per minute via Oracle dynamic external template tables •Normalized materialized view, tables and vertical/horizontal partitions of 200 million rows •Coordinated access for heterogeneous sources via database linked servers and database links § Supported Business Intelligence (BI) engine for events, trends, financial analysis aggregates and risk limits •Developed hierarchies and OLAP objects as materialized views and specific triggers for change pools •Designed rule based engine interfaces for duplication searches of related entities •Formulated government report requirements for the organization's financial and operative activities § Organized databases for 5 Credit Scoring systems running Experian (Transact/ PPI) •Designed unattended multistage transformations (more than 1600 rows T-SQL code) § Modeled in-house database for negative accidents and documents for unwanted clients (Black List) •Managed information for corporate and individual clients, debts and lawsuits with trust percentage •Arranged document management with history of packaging, senders (recipients), blobs and conversions •Established metadata and label system for configurations, security and multi-language information § Advised database architecture for Phone Banking IVR (Alcatel PBX) system •Designed login and client information system for linked users, session logging, prompts and actions •Integrated import and ETL transformation for clients, accounts and transactions § Designed Sybase databases for Quadruple Play system with VOD, PPV and VoIP features § Developed and supported MS Access databases and interfaces for small businesses Database Administrator (DBA) - Oracle, MS SQL Server, Sybase § Administered 12 Oracle 9/10 instances for software development and testing •Designed security architecture for fine grain and database audit, metadata triggers and table history •Managed and tuned database storage, database access and indexing for performance tweaking •Patching, auto-generation of metadata templates (scheme mapping), automated backup •Monitored database log and trace files for exception trace mining and connection troubleshooting § Managed 10 MS SQL Server databases as setup, upgrades, optimizations, backups, etc. •Devised materialized views and stored procedures for performance tuning of asp front applications •Developed extended procedures for file modifications and T-SQL wrappers of shell programs •Prevented SQL injection, auditing, schema validation, row level permissions, portable authentication § Supported VOIP billing Sybase platform databases for VoiceMaster VOIP billing software

Svilen Valkov

M.Sc., MCDBA, MCSE

23 HillBank Tr., Brampton ON, L6S 1P6 ● 905-791-8239 ● [email protected] ● www.linkedin.com/in/svilenvalkov

•Designed flexible template forms with database generated elements for survey system •Customized logging of deadlocks/locks, system monitoring, full security audit, access and statements System Administrator - Linux, Windows § Maintained 15 Windows 2000/2003, 2 MS Exchange 5.5/2000 and domain architecture •Operated multi-node application level fail-over cluster (MS Windows Server and MS SQL Server) •Developed custom VBS and CMD scripts for unattended tape backup operations •Harvested Windows domain information (ADSI) in database - about users, groups and rights § Consolidated Windows virtual production and testing environments with VMware and Virtual PC § Managed Linux CentOS 4 (Red Hat EL) with VMware environment for database and application platform •Maintained setup, configurations and tuning for Oracle related installations •Coordinated backup and administrative scripting for disaster recovery and tuning § Administered Linux systems (Red Hat 7.2) – monitoring, scheduled tasks, bash scripting and C/CGI § Organized and maintained Linux clusters for virtual machines – Xen, VMware, Ubuntu, Red Hat (CentOS) § Established distributed software/modeling collaboration environment for open source development § Supported and troubleshooted remote Internet/Windows/Network for ISP, Consulted networks, Unix (BSDi) § Experienced in Windows NT/2003, CentOS 4 (Red Hat), Ubuntu Linux, Solaris 10 and AIX, Oracle 9/10, MS SQL Server 7/2000/2005, Sybase ASE 11.0.3, PostgreSQL, Exchange, VMware, Virtual PC/Server System and Security Architect §Audited security for remote exploit vulnerabilities, database infrastructure, application code hardening, injection protecting and operation system configuration and tuning. §Audited IT security environment for Consulate General of Bulgaria Toronto, Ontario •Researched remote vulnerabilities of operating system, services and applications (code and forms) •Analyzed and advised security measures and administration practices §Designed system architecture for Independent Artist Label (Chosenproductions, Burlingon, Ontario) •Negotiated business requirements for definition of system architecture and business logic •Supervised software development of databases and visual implementation Leadership, Communications & Customer Relations § Designed, planned and assessed business requirements for programming tasks assignments § Leaded database development in a team of system architect, database developer and 4 Java/Jsf developers § Cooperative database support of Risk Framework with 2 DBAs, 2 system architects and VB6, .NET developers. § Negotiated requirements with BAWAG P.S.K. one of the largest European financial networks for Central Data Warehouse (VLDB, DSS, OLAP) system with 7-10 million customers in 7 countries, 2 to 5 thousand concurrent users and average of 2 billion rows of financial data loaded for less than 15 minutes. § Supervised main Bank Data Warehouse for the 20th largest in the world bank groups(www.socgen.com). § Coordinated a database team of 3 DBAs, 5 system administrators and 20 VB6, .NET, Delphi developers § Centralized more than 5 million transactions per day and business data for millions of dollar of turnover operations from more than 200 thousand customers in more than 20 branches and one hundred locations. § Validated purchases of equipment for more than 200 hundred thousand dollars. § Coordinated VoIP Sybase databases with database architect, database developer and C/C++ programmers. WORK HISTORY System and Security Architect, Self-employed (Canada) (August 2008 – Present) Senior Database Architect, EuroRisk Systems(Bulgaria/Austria) (February 2006 – April 2008) Senior Database Programmer, SysMaster (Bulgaria/USA) (August 2005 – November 2005) Senior DBA(2002), Société Générale Expressbank (Bulgaria/France) (November 2001 - August 2005) Database Designer, Self-employed (Bulgaria) (December 2000 - November 2001) Technical Support, ISP-Digital Systems (Bulgaria) (August 2000 – October 2000) More work experience details available upon request EDUCATION § University of Economics, City of Varna - Bulgaria / Ikonomièeski Universitet (Varna, Bulgaria) (University of Toronto Comparative Education Results Expected October 2008) • Master's degree, Computer Science 2004-2006 • Associate degree, Computer Science 2000-2002 • Bachelor's degree, International Business 1997-2001

Svilen Valkov

M.Sc., MCDBA, MCSE

23 HillBank Tr., Brampton ON, L6S 1P6 ● 905-791-8239 ● [email protected] ● www.linkedin.com/in/svilenvalkov

CERTIFICATES & TRAINING § Brain Bench IT exams, tinyurl.com/brainb 2006-2008 § Microsoft Certified Professional (MCP ID: 1920999), tinyurl.com/mcptra (661535 / WelcomeHOME) • Microsoft Certified System Engineer (MCSE) 2000-2003 • Microsoft Certified Database Administrator (MCDBA) 2000-2001 More education, certification and training details available upon request REFERENCES Available upon request