Database Administrator Administration

Vaijayanthy Mahadevan

Aurora, Colorado 720-***-**** *********************@*******.***

Lead Database Administrator

Experienced Database Administrator with a proven track record in Oracle, MySQL, and PostgreSQL database management systems. Adept at ensuring high availability and reliability for critical business applications, achieving 99.9% uptime. Skilled in database development, systems analysis, and coding, with expertise in SQL, PL/SQL, Oracle Forms, Oracle Reports, Oracle Designer, Pro*C, and Unix shell scripting. A collaborative team player with strong leadership abilities, capable of setting directions and working independently.

Key Strengths

Problem Solving – Identifying and resolving complex database issues efficiently.

Communication – Strong interpersonal skills to collaborate with cross-functional teams.

Relationship Building – Fostering productive partnerships across business units.

Collaboration – Working closely with developers and stakeholders for optimal solutions.

Operational Efficiency – Streamlining processes to enhance system performance.

Leadership – Guiding, mentoring, and leading DBA teams effectively.

Training – Knowledge sharing and upskilling team members.

Technical Expertise

Database Management: Oracle, MySQL, PostgreSQL

Database Design: Logical & Physical Modeling

Performance Optimization: Tuning & Query Optimization

Replication & High Availability: Oracle GoldenGate, Oracle Streams, Oracle Data Guard, Cluster Management (Linux, Veritas & RAC), MySQL logfile and GTID replication, PostgreSQL Streaming

Database Installation & Configuration: Oracle 12c/19c, Oracle 10g,11g, PostgreSQL, MySQL

Backup & Recovery Strategies: Data Pump, RMAN, PostgreSQL backups (logical & Physical), Commvault for Oracle/PostgreSQL/MySQL, MySQL logical using MySQL dump and physical using OMEB

Upgrades & Migrations: Oracle, MySQL, PostgreSQL

Oracle Developer Tools: Forms, Reports, Pro*C, Oracle Designer

Operating Systems: Linux, AIX, HP-UX (Shell Scripting)

Cloud: basic knowledge of Oracle and AWS cloud.

Professional Experience

Travelport, Inc. 2003 - 2024

Lead Developer & Development DBA Lead Database Administrator

Worked closely with business teams to understand their requirements and deliver superior database solutions.

Recognized by the CIO with a special award for outstanding contributions.

Managed development and production databases using Oracle, PostgreSQL, and MySQL.

Led the installation, patching, configuration, and day-to-day database operations.

Mentored junior DBAs, providing direction and guidance on best practices.

Designed and implemented advanced replication and distributed database systems.

Led multiple database upgrade and migration projects, ensuring seamless transitions and minimal downtime.

Performed database upgrades, new installations, and patch applications.

Developed strategies for space estimation, backup, performance tuning, server monitoring, and troubleshooting.

Increased the availability of a critical authentication system from 95% to 99.9% using bi-directional replication via Oracle Streams and Linux clusters.

Self-taught MySQL to support Travelport’s API product, managing installation, configuration, and support. Supported build and upgrade of many MySQL databases.

Gained expertise in PostgreSQL to support Travelport Hotel Products, Travelport’s billing system, setting up and maintaining high-availability databases.

Dimension Data 1998 – 2002

Database Consultant to Qwest and Quantitude, Inc.

Served as both an Oracle back-end developer and Development DBA.

Oracle Corporation 1995 – 1997

Developer

Built Oracle Energy Applications using Oracle Forms, Reports, Oracle Designer, and Pro*C.

Education

Master of Science in Information Technology University of Denver, USA

Bachelor of Electrical & Electronics Engineering P.S.G College of Technology, India

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