SUMMARY:

• A challenging career in Architecting/Designing/Implementing/Managing a range of Database solutions including Hadoop, Cassandra, MongoDB, HBase, Pig, Hive, MapReduce and other NoSQL data stores, as well as Oracle & Sql Server solutions.
• Extensive expertise in Cassandra, mongo dB, Oracle, Sql Server, MySQL and Sybase Database Architecting, administration, development& managing a team of global dba’s .
• Architecting solutions using Oracle & Sql Server databases
• Architecting solutions using Cassandra & NoSQL
• Architecting solutions using Big Data Hadoop Lake ecosystem components including Hadoop, NoSQL databases, Flume, Storm, Elastic Search, Solr, Kibana
• Expertise in Oracle, Sql Server & NoSQL administration in a production environment.
• Hands - on SQL and NoSQL DBA experience
• End to End SQL and NoSQL solutions for complex data integration projects
• Expertise in performing building complex data solutions
• Extensive expertise in understanding of NoSQL landscape, available frameworks
• Experience in major NoSQL databases: Cassandra, Mongodb, HBase and experience in modeling and building complex and large data management systems, including columnar db modeling and json modeling
• Expertise in Evaluating and assessing NoSQL database technologies.
• Build and deploy real production systems on NoSQL databases
• 100% Hands-on experience with Hadoop, Pig, Hive, sqoop, MapReduce, spark, storm, kafka, aws, data science, machine language technologies
• 100% Hands-on experience with Oracle PL/SQL, procedures, triggers, functions, indexes
• 100% Hands-on experience with NoSQL db’s including mongo dB, HBase, Cassandra
• Design and build scalable infrastructure and platform to collect and process very large amounts of data (structured and unstructured), including streaming real-time data
• Extensive expertise with monitoring, debugging, benchmarking and performance tuning of Hadoop/Hbase
• Lead & manage a team of Big Data consultants
• Lead & manage a team of Oracle, Sql Server and Sybase database administrators
• Hadoop & Big Data architecture design, planning, installation, deployment
• Migration from relational databases to Big Data platforms
• Scope, plan and manage Big Data & Database administration projects
• Direct the work and priorities of Big Data & DBA team
• Be ultimately responsible for all aspects of Big Data, NoSQL and Relational Databases
• Determine the appropriate technology for new projects, whether it be Big Data or Relational databases
• Provide advice, recommendations and design decisions on performance tuning, backup and recovery, clustering, replication and disaster recovery, migrations
• Oracle 11g/10g, RAC and Sql Server 2012/2008 Database Administration skills
• Data Modelling / Erwin
• Oracle 11g/10g RAC, RAC migrations / upgrades, data guard, RMAN, db upgrades from 10g to 11g, Oracle Streams replication, Oracle Real Application Testing, Oracle 11g new features, Sql server 2012/2008 clustering, replication, disaster recovery techniques.
• MySQL database administration
• Linux tuning
• Shell scripting
• Ansible, Terraform deployments
• AWS Cloud Technology
• Conducting training on various bigdata ecosystem products including Hadoop, Cassandra, Mongodb, Hbase, Flume, Spark, Map Reduce
• Establish and maintain regular written and in-person communications with the organization's executives, department heads, and end users regarding database activities, projects, etc.
• Identify and resolve issues that influence the progress of specific projects and ensure that risks are resolved or triaged for resolution
• Prepare operational cost estimates for current and proposed projects
• Research and propose cost effective technical solutions to address business challenges.
• Assemble project plans and teamwork assignments, direct and monitor work efforts on a daily basis, identify resource needs, perform quality review; and escalate functional, quality, timeline issues appropriately
• Accountable for project expenditures, and timelines
• Core Java programming
• Plan schedules for 24/7 support of production database services to ensure the highest Standards of availability

PROFESSIONAL EXPERIENCE:

Confidential

DBA Director Consultant / Senior DBA

Responsibilities:

• responsible for maintaining their databases, production support, design, performance tuning, disaster recovery, management of the DBA team, data modelling, data governance .
• Responsible for end to end aspects of their databases

Confidential, Denver

Cassandra / Big Data SME

Responsibilities:

• Responsible for performance tuning / installations/ disaster recovery of 200+ Cassandra clusters built on AWS platform.
• Also responsible for big data technology architecture and design, including Cassandra, mongdb technologies.
• Usage of technologies like Ansible, Terraform to build and deploy clustera.
• Usage of technologies like Swiss Java Knife, java Flight Recorder, YCSB and Big Data Stress tools to tune performance of mission critical dvr application.
• Architected and performed upgrades.

Confidential

Senior Big Data Architect

Responsibilities:

• responsible for attending sales meetings for winning big data projects including Hadoop, Cassandra, mongo dB; performing deep dive of client’s architecture, suggesting alternate architectures, implementation of suggested architecture, performance tuning, disaster recovery, fielding client meetings as the Sr Architect, with use of technologies including Cassandra, Hbase, Mongodb, Hadoop Spark streaming, Storm, HBase, HDFS, Pig, Hive, Scala, Kafka, Unix Shell scripts, AWS

Confidential

Bigdata & Cassandra Principal Technical Architect / Subject Matter Expert

Responsibilities:

• Responsible for fighting the production fires and fielding the calls when any Production had crisis with NoSQL / Hadoop / Big Data components, as well as for Big Data Development & Administration.
• Also was responsible for developing & implementing end to end solutions using Hadoop, Spark, Flume, Hive, Pig, Sqoop, Cassandra, HBase, Mongodb.
• Had to solve mission critical issues on the fly including and not limited to issues with Cassandra Performance, tuning, installation, data modelling, Compactions, Garbage Collection, Repairs, compression techniques, tombstones / deletes, jvm tuning.
• Architected and implemented data lake and data processing & query solutions and optimizations for multiple projects using bigdata and Hadoop Hive Pig and ETL tools.
• Also was responsible for preparing training materials and conducting training to a group of 60-70 people on Oracle & Big Data ecosystem components..
• Debugging Java programs and fixing Java programs, code walk thru’s of java programs.

Confidential, New York, NY

Oracle / Sql Server / BigData Director & Architect

Responsibilities:

• Worked as a DBA Director and architect of databases and bigdata for a team of Big Data Consultants & Oracle dba’s, mysql, Sql server dba’s.
• Planned, installed, administered and supported Oracle Real Application cluster database, Data guard solutions.
• Architected, implemented and tested disaster recovery policies for databases.
• Ensured that databases were tuned and optimized to meet user expectations, and queries were running with optimal performance,.
• Ensured 24x7 uptime and acceptable response times as dictated by the requirement.
• Migrated Oracle RAC databases from 10g to 11g.
• Tuned databases and linux performance.
• Designed and implanted database and data solutions as needed by customers As head of team, gathered, analyzed designed and implemented Big Data, Hadoop, NoSQL solutions & Relational database solutions.
• Compared and implemented NoSQL technologies like Hadoop, hbase, mongodb, Cassandra, Flume, Hive.
• Architected and implemented datawarehouses using Hadoop / HDFS / Hive / Pig / HBase / MapReduce / Storm / Solr / Cassandra solutions.
• Performed POC’s and data modeling activities on Cassandra, mongodb, including json and columnar data modeling.
• Trained the team on Hadoop & BigData technology.