EXECUTIVE SUMMARY:

• Detail oriented, bilingual, Cassandra / Confidential Database Administrator Senior highly regarded for a solid background in Confidential Enterprise/Cassandra database management.
• Recognized for expertise in designing, managing multiple servers in multi - instance environments, backups and restores, troubleshooting, and proactive maintenance.
• Seen as adept at delivering complete application and operating systems’ support to diagnose and resolve unique, recurring problems.
• Known for strong technical knowledge of database programming and architecture, with expert project management skills, and ability to direct and manage all aspects to ensure on-time and under-budget delivery.

AREAS OF EXPERTISE:

• Project Planning/Execution Market Research Clients' Relation
• Team Design and Development Negotiation Communication
• Leadership Development Problem Solving Decision Making
• Conflict Management Risk Management Technical Innovation
• Budget Management Team Work Stakeholder Management
• Attention to Detail Organizational Skills Decision Making
• Administration Self - starter Quality Assurance

PERSONAL SKILLS:

• Worked with business users to define user requirements and business rules; ensured overall solutions met SLA (performance and up-time), DR, and scalability.
• Developed the detailed data architectures that support the enterprise and defined the data standards for enterprise systems.
• Reviewed and assessed all major database designs for implementation feasibility, ensuring that data structure aligned with business goals, intended use, and flexibility of design.
• Tracked all tasks and deliverables throughout the phases of the project.
• Tuned Cassandra for efficient operation using multiple views into system metrics, including OS stats, GC logs, JMX, Opscenter, and cassandra-stress.
• Implement and deploy LDAP Security in Confidential Enterprise 4.8.8 and Apache Cassandra
• Built a search Server with DSE Search SOLR and Elastic Search.
• Upgrading DSE search with Solr and DSE Cassandra cluster from 4.6 to 4.8.8.
• Migration application installed from oracle to Cassandra

CORE COMPETENCIES:

• Expertise in system design and development required for business process.
• Good problem - solving ability and analytic skill to solve the problem efficiently.
• Good team player and have excellent interaction skill to coordinate and work with team.
• Design, develop and implement complete life cycle of data warehouses.
• Ensure compliance of standards and conventions in developing programs.
• Resolve and troubleshoot complex issues.
• Design database Backup and Restoration Strategy.
• Performs general DBA duties (install software, create databases, table spaces, add redo log files, managing storage & work closely with Sr. DBA on capacity planning and performance tuning.

• Excellent analytical Skills
• Problem solving skills
• Excellent communication skills
• Attention to detail
• Dependability
• Process Improvement
• Integrity
• Diversity
• Customer Focus
• Highly Inquisitive
• Innovative

TECHNICAL EXPERTISE:

OPERATING SYSTEM: Sun Solaris, HPUX, IBM AIX, Linux RedHat, Centos and Windows Server

CLOUD TECHNOLOGIES: Amazon AWS EC2, Google Cloud,Microsoft Azure Cloud

SEARCH: DSE Search with Solr, ElasticSearch

DATABASE INTERFACING: Hadoop, Cloudera and HBASE

BIG DATA AND HADOOP: Hadoop (IBM Certification in Big Data and Hadoop) HDFS, Mapredure, YARN, Hbase, Pig, Hive, Apache Flume, Apache Sqoop, Apache Oozie, Impala, Apache Zookeeper, CDH4, Cloudera, AWR EC2

VERSION CONTROL SYSTEM: Git

DATABASE DEPLOYMENT: Puppet, Chef

Agile/Scrum environment: Hbase, Mongodb, Cassandra, Couchdb, cassandra in Confidential enterprise, Solr in Confidential enterprise, Elastic search, Oracle 9i/10g, 11g, 12i, REAL APPLICATION CLUSTER, Oracle Golden Gate, Data guard, Sybase ASE, ASE REPLICATION SERVER, SYBASE IQ

DATABASE PROCESSES: Database tuning and designing, Database security and recovery

PROGRAMMING LANGUAGES: T-SQL, SQL, PL/SQL, Unix Shell, Java, Json, Python, Pig Latin, HiveQL, CQL

Application Performance Monitoring tools: AppDynamics

Scripting language: Python, Shell Unix/Linux power user

PROFESSIONAL EXPERIENCE:

Cassandra Architect

Confidential, Cincinnati, OH

Responsibilities:

• Deployment, implementation and deployment of different data model for Cassandra, Confidential Search with Solr and Confidential Analytics with Spark.
• Migration production cluster to new cluster and increasing production cluster to 55 nodes.
• Maintenance, administration, performance tuning of cluster of 55 nodes with 165 TB of data.
• Implementation of backup/restore of 165 TB on the cluster of 55 nodes.
• Manage database operation and architecture and provide performance and capacity planning to increase database efficiency by 99.99 % for 600 end users.
• Perform software installation and configuration, patches, and upgrades to ensure maximum availability of 99.9% by using shell script.
• Enhance connectivity and security to reduce security incidents by 5%.
• Conduct database backup and recovery to increase overall end-user productivity by 99.99 %.
• Troubleshoot the system, Cassandra nodes, cluster and use monitoring and management tools to ensure maximum operational efficiency by using Opscenter, Grafana.

Cassandra architect with Hadoop/Cloudera

Confidential, Maryland Heights, MO

Responsibilities:

• Migrated the database system to reduce the service level agreement (SLA) from 10 minutes to 2 seconds to boost the user experience for 23 million end users.
• Supported efforts to simplify and enhance the customer experience, increasing satisfaction ratings by 30%.
• Designed, Maintained and administered computing environments, including computer hardware, systems software, applications software, and all configurations to boost end-user productivity by 60%.
• Recommended changes to improve systems and network configurations by 70% and determined hardware or software requirements related to the changes.

Cassandra Database Administrator

Confidential, Monroe, NC

Responsibilities:

• Participated in the definition of both functional and non-functional requirements of a system and defines the development strategy, standards and support tools.
• Developed high level designs and plans and estimate the amount of effort required to deliver on time and budget.
• Architecture, implementation and Monitor availability and performance of production and development Cassandra Databases and servers.
• Installed new database releases and related software tools to evaluate in CI environment, eventually promote to production.
• Apply software patches and upgrades to server software for Cassandra Database to stay in compliance with security standards and performance.
• Plan database and server level capacity according to statistics and user requests.
• Work through disaster recovery plans with other groups and departments.

NoSQL (Cassandra) & RDBMS Database Administrator

Confidential

Responsibilities:

• Data Modeling, Setup- Confidential Enterprise on Multiple Data Centers configuration.
• Configuration Vnodes and Single-Token Nodes.
• Managing Cassandra and Adding Nodes, Adding, Removing, Decommission, Move Nodes.
• Cleanup, Backup and recovery, Performance and Tuning.

Database Administrator

Confidential

Responsibilities:

• Served as Apache Cassandra database administrator, installing, managing, maintaining and performance tuning.
• Migrated high-volume OLTP transactions from Oracle to Apache Cassandra.
• Served as Oracle, Sybase, and SQL server database administrator, performing system management, troubleshooting, performance and tuning, and backup functions.
• Drove successful version migration of Sybase data servers in development, user acceptance testing, and production environments, including currency application tracking more than $14 billion in daily financial transactions.
• Performed daily DBA management tasks including troubleshooting, performance and tuning, database monitoring and backup/recovery with Oracle, Sybase, and SQL Server.