Database administrator

Roman Vlasov

Palm Coast, FL *****

******@*****.*** 847-***-**** www.linkedin.com/in/roman-vlasov

Hands-On Database Architect

Database technology professional specializing in business continuity, data center and cloud infrastructure architecture, design, implementation, and support. Expert in achieving business resiliency through design and implementation of high availability and disaster recovery solutions. Extensive expertise in streaming technologies. Lead teams to deliver business-critical, technically challenging projects on time and under budget.

Technical Skills

Data Platform / Tools:

Oracle, MongoDB, Apache/Confluent Kafka, Hadoop CDP/ODP, PostgreSQL/EDB, MSSQL, Informix, MySQL, UDB/DB2

Operating Systems / Clusters:

Linux, AIX, Exadata, Wintel,

Cloud & Virtualization:

AWS, GCP, Azure, PowerVM/PowerVC, VIOS, LPAR, VMware, ESXi, vSphere, OpenShift, OpenStack Bluemix, IaaS, PaaS

Business Continuity:

Oracle Real Application Cluster (RAC), Cloudera, Oracle Grid Infrastructure cluster, ASM, Oracle Data Guard, Oracle Golden Gate, EDB/Postgres, Windows Failover Cluster, PowerHA System Mirror, DB2 HADR

Programming Languages/DevSecOps:

SQL, PL/SQL, UNIX Shell,Python, Perl, Java, C/C++, T-SQL, Ansible, Terraform, Github, Conflunce, JFrog

Professional Experience

USCC, Chicago,IL 2016 – current

Lead Cloud and Big Data Engineer / Lead Database Administrator

Supported MongoDB, Kafka and Hadoop implementations. Provided solutions and architectural support for implementation of Oracle RAC. Architected, implemented and maintained on-prem and cloud database solutions. Implemented and supported Oracle GI 12c-21c stretch clusters and Data Guard environments. Implemented Kerberos authentication, at-rest and in-motion encryption for Oracle, MongoDB and Kafka clusters. Tuned Linux/UNIX, Windows platform to achieve the best performance of applications. Supporting business continuity with provisioning, cloning/recovery procedures using Ansible, Terraform, MongoDB OPS Manager, Oracle Enterprise Manager, RMAN, ASM, storage snapshots and replication and other techniques. Designed and implemented enterprise security integrated with Active Directory. Utilized DevSecOps tools and agile methods.

IBM, Chicago, IL 2000 – 2016

Sr. IT Specialist / Consultant Database Architect

Designed, delivered, and supported solutions for a broad range of projects. Architected and deployed cloud and data center environment based on Oracle technology stack; delivered clustered solutions on multiple platforms. IBM certified AIX System Administrator and Oracle Certified Database Administrator (DBA).

Designed and implemented IaaS cloud database solutions for large scale customers. Migrated large database to off-prem environment while minimizing service downtime.

Architected and delivered multiple cluster environments, including Oracle RAC, PowerHA SystemMirror, Windows Failover Cluster (WFC), improving business resilience and operations.

oDesigned and deployed cloud infrastructure for MSSQL and Oracle 12c RAC and Windows Failover cluster.

oImproved credit card application performance, while satisfying high availability and disaster recovery requirements, by designing and delivering Oracle Real Application stretch cluster environment on AIX platform and tuning AIX / ASM for cluster stability.

oDelivered resilient, disaster-protected systems for business-critical bank environment.

Minimized system recovery time of business-critical applications through SVC FlashCopy cloning / global mirror replication, automating ASM disk group cloning, and deploying Oracle Golden Gate replication along with Active Data Guard and Grid Infrastructure clusters.

Managing ODA and zFS appliances, design and configure Exadata based RAC clusters (OEL).

Designed and implemented Oracle Kerberos AD authentication.

Reduced hardware, operations, and license cost by implementing scalable virtualized infrastructure in data center and cloud environments with minimal downtime.

Roman Vlasov ******@*****.*** Page Two

IBM (Continued)

oMigrated Oracle Multi-Tenant Database from data center to IaaS environment.

oProvisioned RedHat Linux virtual and bare metal servers in VSphere; automated bulk operations across multiple servers with PowerShell scripts.

Resolved application functionality and performance issues by applying a wide spectrum of diagnostics routines and methods throughout all software and hardware layers.

Designed $1M benchmark prototype for next generation online retail application which delivered large-scale high performance and maximum availability in 5-node Oracle RAC environment on AIX / Power platform and IBM Flash systems. Utilized latest Oracle Golden Gate integrated extract/replicat technology for bi-directional replication along with cluster integration

Designed and implemented large scale Oracle and AIX environment for resilient billing system with development cycle support, ensuring business continuity and addressing growing performance requirements.

Designed, delivered, and supported enterprise-level Oracle Maximum Availability Architecture (12c Cloud Control) solution for next generation, private cloud database environment for large insurance company.

Architected and delivered benchmark environment for RSA-AA application which assessed and proved business resilient solution for most critical bank online application. Solution based on Oracle Active Data Guard and Oracle Golden gate replication

Designed benchmarking methods and conducted tests for disk subsystem evaluation project, facilitating vendor and technology selections based on performance, functionality, and usability factors.

SEQUENT COMPUTER SYSTEMS, Chicago, IL 1998 – 2000

Sr. Oracle DBA

Served as production and development Oracle DBA consultant in large, complex, and high transaction volume environment for various customers. Handled both physical and logical aspects of database design, development, and support for Sequent Dynix / ptx NUMA-Q platform.

Performed performance assessments, analysis, and system tuning for large enterprise customers, resolving poor performance and proactively addressing resource bottlenecks.

Developed unique, efficient cross-platform migration method from Oracle Parallel Server 9.2 on Dynix / ptx to IBM AIX, reducing system downtime during cutover.

Designed and implemented enterprise distributed backend system for document management application using Oracle replication, improving application response time based on usage of local replicas.

Supported Oracle Applications E-Business Suite deployment and customization.

Additional Experience

UNIVERSAL TECHNOLOGIES AND SERVICES, INC., Troy, MI

Consultant, Oracle DBA

Implemented and deployed Oracle Financials Applications. Performed Oracle Applications module customization and tuning. Supported large Oracle development team.

Education

Master of Science (MS), Computer Engineering, Microprocessor-based Control Systems for Railway Automation, Rostov Institute of Railway Engineers, Russia

Bachelor of Science (BS), Computer Engineering, Double Major: Telecommunications & Microprocessor Systems, Rostov Institute of Railway Engineers, Russia

Certifications

Open Group Certified Master IT Specialist (Client Focus Area: Services, Technical Focus Area: Solution Delivery, Stream: Data Management) – Registration #: 88068

Oracle Database Administrator 7,8,8i,9i,10g,11g,12c AIX System Administrator AIX 5-7

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