Shekar TR

Senior ETL / Database Architect

Database architect with over 10 years of diverse experience in Software Development Lifecycle (SDLC), Architecture, Database Design, Performance Tuning, Development, and Enterprise Reporting in Financial, Healthcare, Banking (Retail & Credit) and Insurance industries.

        Database Architecture / Design

        Database Performance Tuning

        Database Development

        ETL Tools & Development.

        Database Conversion / Migration

        Project Management

        Training / Mentoring

        Standards Definition

        Software Configuration Management

        Release Management

Special focus on enterprise level database applications, utilizing major commercial database engines (Oracle, Microsoft SQL Server, and MySQL).

 

Experience summary:

Architecture / Database Design

·               Design and build complex relational databases and data warehouses.

·               Work with technical and end users to understand business requirements and identify data solutions.

·               Develop strategies for data acquisitions, data recovery, & enterprise level database implementation.

·               Provide leadership and direction to database developers.

·               Provide an in-depth expertise with data security, storage solutions, database virtualization and replication as well as other complex technical tools and solutions.

·               Define enterprise-level standards (coding, architectural, migration), platform and tool selection.

·               Facilitated Data requirement meetings with business and technical stakeholders to prepare Project charter, BRD's, Risk Analysis Documents and resolved conflicts to drive decisions.

·               Worked extensively on Erwin and ER Studio in several projects for both OLAP and OLTP applications using the Data Modeling (Dimensional & Relational) concepts like Star-Schema Modeling, Snowflake Schema Modeling, Fact and Dimension tables.

·               Worked with DBA/SA on Oracle Database/Exadata server’s upgrades, patching, ASM, Active guard set up, backups and also contingency server’s maintenance & deployments.

·               Increased project delivery efficiency through managing, mentoring and developing
Database Solutions.

·               Integrated and implemented MDM, business intelligence (BI) and data warehousing (DW / EDW) 
solutions.

Development

·               Perform tasks related to the full life-cycle development of software for internal and client use.

·               Plan, analyze requirements, design solutions, develop and test application code. Knowledge and   experience in Windows and Unix platforms using SQL (PL/SQL, T-SQL, ANSI-SQL & Ux Shell Scripting ) under Oracle database

·               Development of ETL solutions using Datastage, Informatica and Essbase Hyperion tools, or database built-in utilities (SQL Loader, SSIS, etc.).

·               Good experience with Hadoop environment and open source ETL tool (Talend) compatible with Bigdata environments.

·           Good Experience in Developing Oracle applications with advanced utilities like Search Engine projects using Oracle Text and Security Project using Oracle Context.

·                

 

·         Responsible for all activities related to the development, implementation, and support of ETL processes for large scale data warehouses using Informatica Power Center and Essbase Hyperion 11.1.2, Hyperion Excel Adin.

Performance Tuning

·               Monitor performance of database management systems in VLDB environments.

·               Provide performance tuning of database systems for query and data loading performance, including data partitioning, indexing, data model review/updates, etc.

·               Effective troubleshooting of performance and tuning problems in Oracle databases and Oracle Applications including I/O optimization, SQL Tuning and Backup and Recovery Planning, Testing and Implementation.

Project Management

·               Manage multiple projects simultaneously with focus on project planning, monitoring, budgeting, resource negotiation, scope containment, conflict resolution, risk mitigation, implementation, project status reporting, documentation and other PMO related processes.

·               Manage, motivate and lead diverse cross-functional business and IT teams/workgroups including developers, business analysts, SQA analysts, and multiple outside vendors for running successful projects with proven ability of achieving projects in time and on budget targets.

·               Proven ability to take over a project at any point in the Software Development Lifecycle (SDLC) and successfully bring to implementation on time, within budget, and to expected quality results.

·               Proven history of collaborative leadership of global onsite and offshore teams.

·               Led Business redesign, automation and performance projects including Reinsurance business redesign, Personal information (chase), Database, Data warehouse and software integration projects.

·               Leading Automation team Experience in automating Monitor Jobs and control Jobs to increase the performance of the various applications and decrease the manual intervention to handle the SLA's effectively.

·               Managed End user requirements by defining the scope and creating the communication strategy to effectively communicate the various aspects of the project to different audiences.

·               Managed database Projects by providing the High level design and low level designs and designing new applications using data modeling tools.

·               Owner and manager of the implementation process by coordinating IT groups both internal and external including but not limited to front end (Java/dot net) team, Business analysts, data Ware housing team, helpdesk, quality assurance and testing teams using detailed communications plan; status meetings and issue resolutions till Go Live and Project close out.

·               Team lead Experience with consistently increasing responsibilities in team management which includes Requirement Analysis, Tasks allocation (WBS), Project Budgeting, Scheduling and managing Deliverables.

 

 

 

Education:

Graduated (BTech-Bachelor of Technology in Electrical and Electronics Engineering) from JNTU Hyderabad, India in 2002.

 

 

 

SKILLS:

Databases: Hadoop, Oracle 12c/11g/10g, Exadata11g, Oracle Integration with DB2 and Sql Server.

Methodologies : Agile Software Development (Scrum, Kanban, Extreme Programming), MS Visio, MS Office, Waterfall Process, Use Case Diagrams, Sequence Diagrams, Activity Diagrams, MS Office.

Business Domains: Credit Cards, Retail Banking, Insurance (Reinsurance, Group) and Health.

Operating Systems:   AIX, UNIX, Linux, Windows 2000/NT/XP.

Prog-Languages: SQL/PLSQL, Shell, Hive, Java script, C and CSS

DB Tools: TOAD 11.6, PLSQL Developer 8.0, SQL Developer, Erwin.

DW / ETL tools: TALEND, IBM Infosphere server-Data stage 8.5/8.1(Parallel Extender),     Essbase Hyperion and Excel add in and Informatica Power center 8.6

Scheduling Tools:  Crontab, Autosys, PLSQL Job scheduler and Control M

Utilities:   WinCVS 1.3.14, VSS, SVN, putty and SSH

AGILE:  JIRA, Rally and Confluence

 

 

 

Trainings Attended:

·               Tata Consultancy Services, NJ, USA, PMP (Project Management Professional), PMI4.0, 2013

·               Bank of America, NJ, USA, ADF (Application Development Framework), 2013

·               Tata Consultancy Services, Hyderabad, Oracle BI (OBIEE 10.1.3), 2010

·               Tata Consultancy Services, Bangalore, Banking Concepts – An Overview, Oracle 10g –Total recall, 2010

·               Tata Consultancy Services, Bangalore, iSecurity, 2010, IPMS & IQMS, Six Sigma, 2010

 

 

 

Projects experience

 

NIH (NIAMS), MD                                                                  Sep’14 – tilldate

LEAD Oracle DBA

 

Domain:  Health

 

Description: NIAMS (NIH) applications designed and maintained to facilitate automated Grants processing for the business users and the grantees. Which also includes end to end grants application process, review, approval and fund release schedules and updates to the grantees and investors.

 

Responsibilities:

·               Involved as Database Team Lead for the team of 4 members to facilitate all the development and support activities for all NIAMS applications built on Hadoop and oracle database environments.

·               Involved in Requirement discussion with clients for budgeting, planning and scheduling releases.

·               Prepared Database Design documents and Data Mapping Documents for the ETL jobs with required DB objects in the database Environment (Hadoop and Oracle 12c).

·               Converting the business requirements into Technical requirements, HLD and DD for the customization and get them reviewed by architect.

·               Prepared and led multiple internal and external IT groups and resources during deployment and Go live by executing issue resolutions both hands on and through escalations.

·               Active participation in decision making and QA meetings and regularly interacted with the Business Analysts & development team to gain a better understanding of the Business Process, Requirements & Design.

·               Used Talend as an ETL tool to extract data from sources systems (Hadoop), loaded the data into the ORACLE database.

·               Involved as Architect or designer in Re design applications Projects from APEX to Java applications and process flow to interact with external applications.

·               Managing Analysis, Testing and Solution for different Issues (Tickets) requested for different schemas in Grants processing area.

·               Managing Reconciliation/Correction of dividend data provided from various NIH branches.

·               Reviewing Development of PL/SQL stored procedures along with Unix shell scripts.

·               Designing and reviewing ETL jobs using Talend tool.

·               Managing and helping team to follow the complete SDLC cycle.

·               Following agile methodologies using JIRA to plan the scrum schedules and deliverables for each scrum.

 

Environment: Hadoop, Talend, Oracle 12c/11g, DataStage 8.1, Control M, Unix and SQL/PLSQL

 

 

Barclays US cards, DE                                                                  Jun’13– Sep’14

Oracle/LEAD ETL Developer

 

Domain:  Credit Cards

 

Description: Barclays marketing applications designed and maintained to communicate the offers, alerts and notifications to the Barclays customers including the Barclays partner customers. This includes all kinds of email notifications, SMS alerts and letter offers. These applications are built with various Datastage jobs (Parallel, Sequential and server) to handle the load process and sent the user communications.

 

Responsibilities:

·               Involved as TEAM Lead for ETL Developers during the analysis, planning, design, development, and implementation stages of projects using IBM Web Sphere software (Quality Stage v8.1, Web Service, Information Analyzer, Profile Stage, WISD of IIS 8.0.1).

·               Involved in Hadoop POC for the ETL process using TALEND tool.

·               Prepared Data Mapping Documents and Design the ETL jobs with required Tables in the Dev Environment.

·               Active participation in decision making and QA meetings and regularly interacted with the Business Analysts &development team to gain a better understanding of the Business Process, Requirements & Design.

·               Used DataStage and TALEND as an ETL tool to extract data from sources systems, loaded the data into the ORACLE database.

·               Involved in Analysis, Testing and Solution for different Issues (Tickets) requested for different schemas in Credit cards Marketing area.

·               Reconciliation/Correction of dividend data provided from various vendors

·               Automation of manual tasks which require more effort/resource and various other tasks

·               Development of PL/SQL stored procedures along with Unix shell scripts.

·               Development of parallel jobs using Datastage tool.

·               Managed onsite and offshore development teams.

·               Designed and Developed Data stage Jobs to Extract data from heterogeneous sources, Applied transform logics to extracted data and Loaded into Data Warehouse Databases.

·               Created Datastage jobs using different stages like Transformer, Aggregator, Sort, Join, Merge, Lookup, Data Set, Funnel, Remove Duplicates, Copy, Modify, Filter, Change Data Capture, Change Apply, Sample, Surrogate Key, Column Generator, Row Generator, Etc.

·               Extensively worked with Join, Look up (Normal and Sparse) and Merge stages.

·               Extensively worked with sequential file, dataset, file set and look up file set stages.

·               Extensively used Parallel Stages like Row Generator, Column Generator, Head, and Peek for development and de-bugging purposes.

·               Used the Data Stage Director and its run-time engine to schedule running the solution, testing and debugging its components, and monitoring the resulting executable versions on ad hoc or scheduled basis.

·               Developed complex store procedures using input/output parameters, cursors, views, triggers and complex queries using temp tables and joins.

·               Converted complex job designs to different job segments and executed through job sequencer for better performance and easy maintenance.

·               Creation of jobs sequences.

·               Created shell script to run data stage jobs from UNIX and then schedule this script to run data stage jobs through scheduling tool.

·               Coordinate with team members and administer all onsite and offshore work packages.

·               Analyze performance and monitor work with capacity planning.

·               Performed performance tuning of the jobs by interpreting performance statistics of the jobs developed.

·               Documented ETL test plans, test cases, test scripts, and validations based on design specifications for unit testing, system testing, functional testing, prepared test data for testing, error handling and analysis.

·               Participated in weekly status meetings.

 

Environment: Hadoop, Oracle 12c, DataStage 8.1, Control M, Unix and SQL/PLSQL

 

 

Bank of America, NJ                                                                      Jan’12–May’13

Oracle Lead Developer

 

Domain: Retail Banking Financial Services

Description: The ‘eLedger’ application is designed to handle Bank of America’s General Ledger, Funds Transfer Pricing and Customer level Profitability Reporting activities. The data from ‘eLedger’ is used for making Strategic Financial Planning and Analysis which helps to improve the business on the long run thereby providing an edge over its competitors.

 

Responsibilities:

·               Developed CORPFIN application and delivered with minimal issues and on Time.

·               Design & Develop the Outlines for Corpfin and Recon applications using Dimensional model on Essbase.

·               Reverse engineered the reports and identified the Data Elements (in the source systems), Dimensions, Facts and Measures required for new enhancements of reports.

·               Conduct Design discussions and meetings to come out with the appropriate Data Mart at the lowest level of grain for each of the Dimensions involved.

·               Designed a STAR schema for the detailed data marts and Plan data marts involving confirmed dimensions.

·               Actively participating in development of business entity

·               Development of PL/SQL stored procedures and UNIX shell scripts.

·               Scheduling the Autosys jobs for Essbase cube building

·               Preparation of fortnightly status report of project activities

·               Setup Grid Control for Monitoring Exadata X2.

·               Created and maintained the Data Model repository as per company standards.

·               Conduct Design reviews with the business analysts and content developers to create a proof of concept for the reports.

·               Ensured the feasibility of the logical and physical design models

·               Collaborated with the Reporting Team to design Monthly Summary Level Cubes to support the further aggregated level of detailed reports.

·               Worked on the Snow-flaking the Dimensions to remove redundancy.

·               Designed Sales Hierarchy dimensions to handle sales hierarchy reporting historically and dynamically

·               Worked with the Implementation team to ensure a smooth transition from the design to the implementation phase

·               Worked closely with the ETL Developers to explain the complex Data Transformation using Logic

·               Created ETL Jobs using Informatica and Custom Transfer Components to move data from Oracle Source Systems.

 

Environment: Toad, Oracle 11g(OLAP), Autosys, UNIX, SQL/PLSQL, Hyperion Essbase 11.1.2, Essbase Studio, Hyperion Excel Addin and Informatica Power center 8.0

 

 

JP Morgan Chase, Columbus, OH                                                            Jan’10-Dec’11

Oracle Lead Developer

 

Domain: Retail Banking Financial Services

Description: 

The process established clearly defined access controls to ensure masking of the data that is identified and validated as personal information and ensure approved users receive access to only those data elements necessary to perform their business role through the process of approval(s) depending on the sensitivity of the data.

 

Responsibilities:

·               Responsible in developing “Privacy Initiative” (PI) project using Virtual Private Database (VPD).

·               Automated the Testing of security policies on schemas which restricts sensitive data to the users.

·               Involved in Analysis, Testing and Solution for different Issues (Tickets) requested for different info1 maintained schemas.

·               Coded and implemented packages to perform PI testing and batch job scheduling.

·               Developed Shell Scripts to automate the testing PI applied columns across the schema.

·               Developed UNIX Shell Scripts and PL/SQL procedures to extract and load data for batch processing.

·               Performed tuning and optimization on SQL queries using Explain Plan.

·               Expertise in use of Export/Import and Datapump (object level, schema level, transportable tablespace and full database).

·               Experience in Performance Tuning databases using various techniques. Collected performance statistics memory usage, data storage, data manipulation, physical / logical storage, network traffic and implement / manage parallelism for optimum performance using Explain Plan, SQL Trace, Tkprof & Statspack.

 

Environment: Oracle 10g, Crontab, AIX, SQL/PLSQL, informatcia power center 8.6

 

 

Swiss Re Insurance, NY                                                                         Mar’08–Dec’09

Domain: Re Insurance

Senior Oracle Developer

 

Description: Automates and streamlines SRLH existing business processes, integrating with our clients/partners where appropriate. Provides the means for capturing clean, accurate, and consistent data to improve decision-making.  Automates the end-to-end flow of data within the division, transforming that data into information. Establishes a global, low-cost environment and Delivers global processes and systems

 

Responsibilities:

·               Involved in Discussions with Swiss Re personnel based on the System Requirements Document to cover the functionality,  technical issues and scope of work

·               Analyzed, diagnose dividend data to identify any problems in data

·               Analyzed Business requirements for changes.

·               Reconciliation/Correction of dividend data provided from various vendors

·               Automation of manual tasks which require more effort/resource and various other tasks

·               Coded in PLSQL and Unix Shell Scripting

·               Developed Data Inflation module using PLSQL packages.

·               Code Review for the team developed procedures.

·               Created many PLSQL packages

·               Created many tables, stored procedures on Oracle

·               Worked in query optimization

·               Participated in performance tuning

·               Provided support to the data files by running extracts and performing data imports through SQL Loader.

·               Conducted major Swiss Re stakeholder interviews involving SME’s, Business Analysts and other stakeholders to determine the requirements.

·               Translated the business requirements into workable functional and non-functional requirements at detailed production level using Workflow Diagrams, Sequence Diagrams, Activity Diagrams and Use Case Modeling.

·               Identified and compiled common business terms for the Insurance system that become central part of communication among project stakeholders to avoid ambiguity

·               Worked at conceptual/logical/physical data model level using Erwin according to requirements.

·               Involved in exhaustive documentation for technical phase of the project and training materials for all data management functions

·               Used Reverse Engineering approach to redefine entities, relationships and attributes in the data model as per new specifications in Erwin after analyzing the database systems currently in use

·               Enforced referential integrity in the OLTP data model for consistent relationship between tables and efficient database design

·               Used forward engineering approach for designing and creating databases

·               Conducted design walk through sessions with Business Intelligence team to ensure that reporting requirements are met for the business

·               Developed Data Mapping, Data Governance, Transformation and Cleansing rules for the Master Data Management Architecture involving OLTP, ODS and OLAP

·               Collaborated with ETL, BI and DBA teams to analyze and provide solutions to data issues and other challenges while implementing the OLAP model.

·               Developed and maintained data dictionary to create metadata reports for technical and business purpose.

·               Created action plans to track identified open issues and action items related to the project

·               Prepared analytical and status reports and updated the project plan as required.

 

 

 

Environment: Autosys, Oracle 10g, TSQL, MS SQL Server

 

AVIVA Group Insurance, UK                                                                 Nov’07–Mar’08

Senior Oracle Developer

 

Domain: Group Insurance

Description: The objective of Hibernian Life & Pensions project is to enhance its Group Pensions Processing infrastructure by building an application to significantly enhance its Group Pensions processing ability internally, and provide a new online offering of Group Pensions products to brokers, trustees and employers.

 

Responsibilities:

·               Involved in user requirement gathering, analysis, design, coding and testing

·               Involved in Design Documents of HLD & LLD

·               Coded in PLSQL and Unix Shell Scripting

·               Developed modules using SQL/PLSQL

·               Designed, developed and modified Plsql scripts using the package & modules

·               Worked in automating feed processing module with table-based data

·               Created queries to generate complex reports by using inline quires and joins

·               Created many tables, stored procedures on Oracle

·               Involved in database design and SQL query performance tuning

·               Created many batch scripts using KSH and scheduled in CRON TAB

·               Created batch processes to function independently behind the scenes for data transfers and database updates

·               Worked on bug fixing and supported the production applications

·               Participated in design and development of various modules

·               Worked in design documentation and change control up

 

Environment: TSQL, MS SQL Server

 

AVIVA Insurance, UK                                     Oct’06–Nov’07

Oracle PL/SQL Programmer

 

Domain: Insurance

Description: British School of Motoring (BSM) is into the business of providing driving lessons. They book lessons for learners and allocate the same to the instructors for lesson delivery. Financial settlement to the instructors takes place, based on the number of lessons provided and their lesson price. All instructors are registered as franchisee with BSM. Thus they enter into an agreement for the franchisee and settle for a franchisee fee to be paid to BSM

 

Responsibilities:

·               Involved in the Data Migration Activities

·               Involved in Development of AOL objects like Defining Concurrent Programs and Executables for finance modules.

·               Prepared requirement documents, high level design and unit test plans

·               Developed and tested new scripts required to automate and drive the procedural execution of applications for efficiency and troubleshooting purposes

·               Worked on creation of Control Files for SQL Loader to load data from Text Files.

·               Created new stored procedures, triggers, views as part of Implementation. In AR, AP, GL Modules.

·               Created Forms and Reports in AR, AP modules.

·               Used SQL Loader for data loading

·               Created Unix Shell Scripts for sequential execution of scripts including data extraction, transformation and  loading. and Stored Procedure execution

·               Involved in client interaction at requirements capturing stage

·               Developing test plans.

 

Environment: E-business Center 11i FINANCE Modules, PLSQL, Shell Scripting

 

AT&T, USA                                                                                               Nov’05–Oct’06

 

Description: 

Route Management System supports the analytical activities of the Route Managers who negotiates the bilateral contracts with foreign carriers in the termination of international traffic.   The system provides settlement direction of network minutes and Unit Cost of Net Settlement (UCNS) by route, termination point and product.   The Route Managers are able to monitor and track the performance and commitment of the bilateral contracts and manage the UCNS to achieve a low, competitive cost base for voice international interconnections with over 500+ carriers in over 230 countries.   This would allow the managers to better price and respond to competition and achieve route profitability.

 

          RMS sources network volume and ISP and LCR rates from PISCES.   A RMS ISR Agreement Data Entry Tool captures the ISR agreements.  The system utilizes Oracle Financial Analyzer (OFA) to provide a flexible reporting platform for rapid evaluation of the country traffic and any changes to the fundamental processes involved in delivering international minutes.

 

         In addition, RMS also provides a web version of OFA available with RMS online, which provides additional dial codetermination point network traffic detail retrieval.

 

Responsibilities:

·               Responsible for Onsite Client interaction for information gathering.

·               Developed an ISR data Entry tool to allow users to enter the terms of new ISR or Traded deals under negotiation signed or unsigned

·               Coding and bug fixing

·               Created new stored procedures, Triggers and modified existing packages and other schema objects

·               SQL query tuning on complex reports

·               Maintained the version control through Visual source safe.

 

Environment: PERL Solaris 2.x, KSH, Sybase 11x, T-SQL

 

AT&T, USA                 Feb’05–Nov’05

 

Domain: Telecom

Description: International Settlements is the process whereby telecommunication administrations involved in providing telecommunications services, such as International Long Distance Service (ILDS), are compensated for the costs of jointly providing such service.  Another way to look at International Settlements is as a sharing of the revenues generated by partnering to provide telecommunications services. 

Each administration reports to the other the number of minutes it billed in a given period and the share due the other administration.  The two reports are compared, and the administration, which bills more, pays the other administration.

The International Settlements Analysis Tool (ISAT) is a collection of 6 multidimensional Oracle Express (OES) databases containing international network and biller data.  Network data contains the data that flows through the actual physical network. Biller data contains the call details as it appears in the bill. ISAT provides each user with Online Analytical Processing (OLAP) access to the OES databases. Using OLAP technology, ISAT not only gives users fast access to any item in each database but also an easy-to-use tool to view and analyze the data under multiple dimensions such as time, geography, products, and others.

 

Responsibilities:

·               Developed utilities and different shell scripts which were used while unit testing the code fixes.

·               Created new stored procedures, Triggers and modified existing packages.

·               Created Reports and customized Graphs to display real-time Views of the Data.

·               Maintained the version control through Visual source safe.

·               Worked on new modules and enhancements

·               created views and table joins for generating Reports

·               Analyzing the PLSQL code, log files and core dump taken from the defective systems.

·               Worked on Shell Scripting.

·               Involved in functionality testing and integration testing

 

Environment: PERL Solaris 2.x, KSH, SQL/PLSQL, OFA, OSA