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Cassandra Architect Resume

Cincinnati, OH

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.
PERSONAL SKILLS:
  • 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.

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