Vadim Keylis Email & Phone Number

United States

* Developed java application server to talk to RESTful API CDN client for invalid photo removal. * Developed java application server to query data from various queues in Oracle database and send them to web tier using Hessian protocol for further processing. * Designed and implemented framework to log various metrics from PHP into Kafka.* Designed and implemented Java service that subscribed to various Kafka topics for further loading into Greenplum Analytics or Oracle databases.* Built Java Service for the Deckadence cards social game using Oracle database as persistence layer.* Designed and implemented usage of Oracle database as persistence layer for website Newsfeed feature.* Designed Java service that cleanup or recovered user friends connections, canceled accounts that were marked as spam or contain content that was not compliant with our terms of service.* Designed and implemented new user messaging system that lets users communicate with one another.* Put infrastructure in place to display different polls and announcements to members depending on the user’s age, gender and country of origin and age group. * Architectured and implemented various website features with persistence to database including friends connections, newsfeed, registration, photos, comments, games, sending gifts, adding third party widgets to comments and etc.* Worked on shrinking databases size to reorganize tables using DBMS_REDEFINITION package.* Oracle Standard and Enterprise installation,upgrade, configuration, management, support of instances running in a sharded configuration, backup and recovery using RMAN.* Developed PL/SQL Applications.* Worked with OEM 12C Grid/agent configuration to monitor oracle database and Ignite.* Maintained Physical Standby database in datacenter and in AWS using dataguard.* Managed Greenplum appliance (PostgreSQL v8.2.15).

San Francisco Bay Area

* Developed a web scraper application to capture operational and financial data from advertising networks websites for reporting purposes, storing data in Oracle 10g databases using Business Objects Crystal Enterprise. The application is used by the analytics and executive teams for operational and revenue forecasting purposes. * Migrated dashboard reports from Crystal Enterprise platform to Oracle Reports 10g.* Participated in logical and physical database design for MySQL databases (tactical layer) and enterprise Oracle 10g database. Migrated database schema from MySQL into Oracle 10g.* Developed application to acquire live feed data from partner’s networks via secured web services (https). Developed an API (perl modules) to process data and store information in operational MySQL databases.* Developed a custom ETL (data extraction, transformation, loading, and cleansing) framework to process high volume data received from partnering list providers and loading information into production databases for email marketing campaigns.