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@cvisperas
Member since September 23, 2008
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cvisperas

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-- 15+ years of hands-on experience as DBA in Oracle, MySQL, SQLServer, PostgreSQL. -- 8 years of hands-on experience in Cloud Services - AWS (RDS, EC2, S3) and Azure. -- 3+ years of hands-on experience as DB Chief Architect in a SaaSOps organization. Skill Set : Oracle, MySQL, MSSQL, PostgreSQL, MongoDB, Aurora, RMAN, Streams, DataGuard, OSB, RAC, ASM, OCFS, GoldenGate, SSIS, AWS EC2, RDS, S3, Cloudfront, CloudWatch, Azure, SalesForce, Unix, Linux, Windows, VMWare, Bash Scripting, PL/SQL, TSQL, AlwaysOn, TDE, APEX, Bash Shell Scripting. ITIL-certified. 24x7 On-call support and issue-resolution. With creative and technical writing skills, experience in article-writing, case studies writing, blogging, SEO writing, project management and documentation.
$30 USD/hr
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Portfolio

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Experience

Database Chief Architect (remote)

Oct 2017 - Jun 2019 (1 year)

Worked as DB Chief Architect at Crossover, SaaSOps Team. Work involved ensuring availability and top performance of multiple product databases hosted in Amazon Web Services and collocation data centers running in Oracle, SQLServer, MySQL, Aurora, PostgreSQL and MongoDB.

SaaSOps Senior DBA (remote)

Jan 2015 - Sep 2017 (2 years)

Worked as SaaSOps Senior DBA at Aurea Software. Work involved 24x7 issue resolution, administration and maintenance of product databases in various platforms such as Oracle, MySQL, MS SQL Server, and PostGreSQL. Involved in DB migration from collocation to Amazon Cloud, DB consolidation, and daily DB housekeeping to maintain SLA uptime.

Database Administrator (remote)

May 2011 - Dec 2014 (3 years)

Database administrator for SaaSOps team. Work involved migrating database systems from collocation data centers to AWS cloud (EC2, RDS, S3). Additional work in issue resolution and support for handled databases.

DBA (remote)

Feb 2009 - May 2013 (4 years)

Oracle DBA providing issue resolution, performance tuning, process documentation and technical implementation of Oracle multi-node RAC databases on Linux platform, VMWARE, ASM, OCFS, GoldenGate, RMAN, Streams.

Systems Infra Group DBA/Team Lead

Oct 2008 - Apr 2009 (6 months)

Worked as Sr. DBA/Team lead of the Systems Infra group, supervised a group of DBAs and Server Admins in day-to-day database and server administration. Supported 6 regional sites of 100+ production and test databases. 24x7 on-call incident resolution, Oracle administration. Coordination/Liaison with other IT groups (LAN group, PC support, Service Desk, Operations Group, Application Group) on change projects and/or issue resolution.

Oracle DBA

May 2005 - Sep 2008 (3 years)

Worked as Oracle DBA for the Systems Infrastructure Team, providing day to day database and server administration. Supported 2 country sites of 100+ production and test databases. 24x7 on-call incident resolution.

Database Architect/Team Lead

Aug 2004 - Apr 2005 (8 months)

As the Database Architect/Team Lead for the Vodafone KK CORE Project BLG-IT (Billing IT) team, the following tasks are performed: - Perform database administration for the Billing team Oracle databases - Provide environment support to the Billing team development and application test environments - Serve as System Investigation Request Log and IT Support Request Log Coordinator - Contribute to process improvement for the Billing team - Perform administrative duties for the BLG-IT team

DBA/Sr. Analyst Programmer

Feb 1998 - May 2002 (4 years)

Work involved software project management, maintenance and administration of IRRI's centrally-managed databases and applications in support of research activities and initiatives. The project largely involved support for the Rice Genebank -- the world's largest collection of rice genetic materials.

System Analyst Programmer

Aug 1993 - Aug 1995 (2 years)

As System Analyst Programmer, responsibilities include the following: -- Develop specifications and data relationships of several human resource modules -- Write scripts for the said modules -- Conduct unit, system and user acceptance testing of the various human resource modules -- Create system documentation and technical manuals -- Conduct user training.

Oracle DBA/Developer

Aug 1993 - Feb 1998 (4 years)

Work involved platform migration of the existing International Network for the Genetic Evaluation of Rice (INGERIS) Oracle database from VAX to Windows NT and its subsequent connectivity to the International Crop Information System (ICIS). Performed systems analysis, design and application development , DB software installation; DB creation and configuration; user management; issue resolution, DB backup and recovery; creation of documentation and manuals for the projects.

Junior Programmer

Feb 1992 - Feb 1993 (1 year)

Work involved module development for the IRRIOFT software, an in-house statistical and data management application for technology verification trials conducted at farm-level. -- Design/model various data structures and requirements needed by the fourth IRRIOFT module -- the -- Inventory module, and the fifth module the report generation module -- Create scripts to implement the said modules -- Conduct unit and system testing for the modules -- Conduct user trainings on the finished modules

Education

Master in Management

1998 - 2001 (3 years)

Bachelor of Science in Computer Science

1987 - 1991 (4 years)

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