SUMMARY:

• Over10 years of rewarding career in Software Development life cycle using Java Technologies
• Over 5 years of experience in Big Data Technologies
• Experienced in Requirements gathering, Research, and Design & Development. Conducted functional & technical design reviews, Code reviews and coordinated development activities.
• Expertise in Analytical, Transactional RDBMS, NoSQL Databases
• Excellent data analysis skills

SKILL:

Spark (2 years), AWS(2 years), EMR(2 years) Scala (1 Year), Kafka(1 year), Hadoop (5 years), Pig (5 years), Sqoop(2 years)Java (10+ years), SQL (10+ years), Hive (4 years),ETL (5 years), Oracle (10+ years), Vertica (4 years), Git (4 years), Drools (2 years), Jrules (7 years), J2EE (10+ years), Perl (3 years), Solr (1 year), Data Analysis (10+ years)

PROFESSIONAL EXPERIENCE:

Senior Software Engineer

Confidential, Sunnyvale, CA

Responsibilities:

• Designed and implemented data flow model to provide Campaign performance feedback within the hour.
• Implemented the Data flows using Spark SQL, Hive loading data from S3, HDFS
• Designed Redis cache - based solution to mitigate performance while maintaining data consistency
• Migrated existing applications to AWS, designed infrastructure needed in AWS (EC2, ELBs, Auto Scaling Groups, SQS, SNS)
• Designed and Implemented AWS infrastructure using Cloud formations and Terraform, implemented CI
• Designed Vertica Projections for optimal query performance and overall Vertica performance
• Coordinated with DBA and Operation teams for upgrades and Release Management.

Big Data Consultant

Confidential, Dulles, VA

Responsibilities:

• Designed and developed a generic batch processing framework that executes various ETL using Spark, Map Reduce, Pig Scripts, Hive Scripts and loads to multiple databases.
• Processed over a terabyte per hour on 500 Node Cloudera Hadoop cluster
• Designed and implemented framework for data consistency checks across various databases, keyset grouping and metrics
• Replaced legacy dataflows to multiple Oracle databases with fault tolerant and consistent flow.
• Implemented dimensional data distribution system that extracts from Mongo database to Vertica and Oracle databases

Software Engineer Lead

Confidential, Reston, VA

Responsibilities:

• Designed and Developed Web Services for Request to Procure, (RTP), Procure to Pay(PTP), Trust Fund to integrate with Oracle Financials in real time.
• Worked with external system integrator (Egrants, EPS etc) to integrate with Confidential web services, provided technical support and Guidance.
• Designed and Developed distributed processing Hadoop Map reduce for CCR (Vendor registration) file
• Designed and developed a Hadoop Map Reduce based sync process to sync Oracle transactional data to Vertica databases.
• Designed and Created multiple reports using Jasper soft, developed underlying data views and packages for optimized data retrieval.
• Performance tuned multiple reports and other PL/SQL operations to reduce execution time from hours to seconds.
• Prototyped Enterprise search system using Solr/Lucene
• Conducted team meeting and coordinated service pack deliverable with Project analysts
• Re-engineered core services to make the JDK 7 compliant migrating from java 1.2 and resolve long standing issues.

Jrules Architect

Confidential, Seattle, WA

Responsibilities:

• Worked in tandem with business analysts to implement and test business policies.
• Designed and Developed a JMS based Web Service that invokes the rule execution server consumed by various Loan originating systems.
• Developed a comprehensive testing mechanism, a test harness that allows for an automated regressive testing and unit testing for users to test in various environments including local machines, QA, Pre-Production and Production environment from a friendly interface.
• Resolved production problem that caused lengthy delays intermittently by simulating network load using a multithread application to pinpoint the root problem.
• Developed user friendly toolkit to quickly transform test XMLs and expected response XMLs and automated check in-checkout from perforce to cut down repetitive tasks.
• Mentored WaMu's software developers, business users.
• Worked with Systems and Development providing key advice for moving from a legacy JACS system to aJ2EE compliant platform.
• Worked with existing PL/SQL procedures to discover business policies.
• Designed and Developed Java domain model to be used in implementing rules.
• Debug and profile working memory to check for memory leaks.
• Conducted training and knowledge transfer sessions for the development team.
• Coordinated with Confidential PM and Concentra PM providing with time lines and status reports

Software Engineer

Confidential, Reston, VA

Responsibilities:

• Designed and Implemented business rule validation using JRules.
• Conducted JRules training classes for developers across multiple projects* Created a java frame work for JRules integration to be plugged into various projects * Enhanced performance of JRules by one to many object relations.
• Designed and Developed XSD schemas and WSDLs for web services.
• Designed and implemented Award and IDV customizations for DoD.
• Designed and Implemented business rules using Confidential JRules.