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Tech Lead, Senior Informatica Developer, Esp Resume

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Boston, MA

PROFESSIONAL SUMMARY:

  • 14.8 Years of IT experience.
  • Worked in complete Software Development Life Cycle (SDLC), starting from requirement gathering, analysis, design, testing, debugging, implementation, post implementation support and till maintenance.
  • Good team player, strong interpersonal and communication skills combined with self - motivation initiative and positive attitude.
  • Good in Onsite-Offshore work co-ordination.
  • Worked on Oracle Database supporting OLTP and Data Warehouses.
  • Also worked on the ETL Tools like Informatica, Ab-Initio and Reporting tools like Cognos, OBIEE.
  • Strong experience with Informatica tools - Mapping designer, Mapplet Designer, Transformations Developer, Informatica Repository Manager, Workflow Manager and Workflow Monitor, and DAC as Scheduler tool.
  • Created worklets by grouping different sessions related to a subject area.
  • Have knowledge about the Informatica PowerExchange.
  • Practical understanding of the Data modeling (Dimensional & Relational) concepts like Star-Schema Modeling, Snowflake Schema Modeling, Fact and Dimension tables.
  • Developed effectively different type of SCD’s based on the specifications.
  • Sound experience in Performance tuning of ETL process. Reduced the execution time for huge volumes of data for a company merger project.
  • Successfully co-coordinated for the project activities in off-shore/onsite model with a team of 12 members.
  • Experience in interacting with onsite clients while being responsible for deliverables.
  • Ability to work with limited resources, capable of multi-tasking, planning works around concurrent and time sensitive deliveries.
  • Quick to learn.
  • Worked in Agile work environment.
  • Handle the work independently.
  • Had a good knowledge and completed training in Oracle Data Integrator (ODI)
  • Looking ahead for great personal and professional career in a fair working environment with opportunities to grow.
  • Organizing timely meetings with Business and other teams, then sharing the MoM based on the meeting outcome.

TECHNICAL SKILLS:

Operating Systems: UNIX, Windows XP/2003/2007/8

Languages: C, C++, Java, SQL, PL/SQL

Databases: Oracle, MS Access, DB2

Web Related: Salesforce, HTML

ETL Tools: Informatica Power center 9.6, Informatica Cloud 9.6, Informatica Power center 8.6, Informatica Data Quality 9.6, ESP, Ab Initio

Schedulers: DAC (Data Warehouse Administration Console), CA7 in Mainframes, Crontab, Autosys

Reporting Tools: Cognos, OBIEE

Utilities: TOAD, SQL Developer

Domain Knowledge: Banking, Healthcare, Telecommunications, Credit Card Business, Insurance, Re-Insurance, Retail, Mutual Funds

PROFESSIONAL EXPERIENCE:

Confidential, Boston, MA

Tech Lead, Senior Informatica Developer, ESP

Responsibilities:

  • Gather and analyze the requirements from Business Analysts of Confidential .
  • Prepare the technical design documents.
  • Perform project activities in compliance with the Agile/Scrum methodology.
  • Estimate the efforts (in terms of hours) based on the tasks assigned and plan the work accordingly.
  • Make use of the ETL tool like Informatica PowerCenter, ESP and Oracle SQL/PL-SQL appropriately in the project considering multiple factors such as optimal performance and easy maintenance of code by maintaining the industry standards.
  • Design and develop new code for bringing in new functionality as per the Business expectations
  • Providing knowledge to the code for handling multiple Business cases for a given scenario thus reducing the efforts for doing re-work.
  • Migrate the code from development to UAT
  • Do the unit testing and integration testing as per test cases.
  • Fix the bugs that get popped up during this process
  • Provide test results to Business and get their sign-off to go-ahead for further process.
  • Creating scripts in Unix for auditing and scheduling of batches by considering their dependencies
  • Deploy the code to Production following the process from end to end.
  • Track the issues and work on them on priority issues.
  • Include enhancements in the code based on the on-going business changes.
  • Preparing the documentation for easy maintenance of project.
  • Update Business and Manager about the timely status of work completion and projected timelines.

Environment: Informatica Powercenter 9.6, ESP, Oracle 11, PL/SQL, Unix, Autosys

Confidential, New York, NY

Senior Informatica Developer

Responsibilities:

  • Discussed with Business users to understand their current requirements
  • Analyzed the list of existing workflows at each subject area level.
  • Prepared the technical design documents.
  • Estimated the efforts (in terms of hours) based on the tasks assigned to team and guide them accordingly.
  • Designed and developed new workflows wherein the functionality was not incorporated in existing code.
  • Purged a part of the existing code that is not required anymore and enhanced where needed.
  • Used Informatica Cloud to extract the data from Salesforce to Oracle database.
  • Track the issues and work on them on priority issues.
  • Tuned the workflows that are having performance issues by taking the statistics from the production environment.
  • Created PL/SQL procedures in the instances wherein PL/SQL works much more efficiently than Informatica
  • Prepared the test cases and got the sign-off from Business.
  • Created deployment groups and migrated the code from Dev to QA environments
  • Performed the unit testing and integration testing as per test cases.
  • Involved Business wherever needed and got necessary approvals by contacting various teams (like Business users, Informatica Admins, Change Management)
  • Deployed the code to Production following the process from end to end.
  • Update the Business and Managers about the timely status of work completion and projected timelines.

Environment: Informatica Power Center 9.6, Informatica Cloud 9.6, Informatica Power Center 8.6, Salesforce, Oracle 11, SQL Server, PL/SQL, Unix, Autosys and TOAD.

Confidential

ETL Informatica Tech Lead, Senior Informatica Developer

Responsibilities:

  • Leading a team of 11 members in the role of Tech Lead.
  • Actively involving in the 24*7 support and doing the enhancements wherever required.
  • Analyzing and fixing the code in production instantly after doing quick testing in production-like environment whenever there is a job failure due to the code issue.
  • Tuning the Informatica workflows for optimal performance.
  • Used various sources such as Flat files, Relational database and Web services as part of Informatica Mappings.
  • Creating scripts in Unix for auditing and scheduling of Informatica batches
  • Providing the permanent fix whenever the jobs get failed due to repeated issues.
  • Preparing the documentation for easy maintenance of project.
  • Automated the jobs by considering their internal dependencies and based on upstream.
  • Integrated data from different sources.
  • Closely working with Business users during the month-end batches and provides timely updates in terms of status of the batches (as they get executed continuously for 2 days) as these are very critical to the Business for reporting purpose.
  • Creating the OBIEE reports based on adhoc requirements from Business.
  • Providing necessary support for OBIEE queries whenever required.
  • Working over the incidents/tickets that are created by different business users by prioritizing them based on issue criticality. Using the Tivoli scripts for creating the alerts/incidents whenever there is a job failure in Informatica and when OBIEE services go down.
  • Actively participating in the DR (Disaster Events) that take place over the weekends in every quarter.
  • Update Business whenever there is any delay in the batches (for any reason) and plan accordingly so that there should not be much impact to Business.
  • Working along with the team as a part of the regular activities in day-to-day work along with the other responsibilities.
  • Assign the team members accordingly to complete the work based on their competent.
  • Created partitions to handle huge data at database level.
  • Track the status of work from time to time and provide timely updates to team lead.
  • Provides spontaneous response to the queries posted by business users and supporting teams.
  • Handling escalations in the best way whenever there are any.
  • Scheduling the calls with Business users to understand the issues clearly and solve the issue accordingly.
  • Encouraging the team to participate in multiple events that are conducted by Organization.

Environment: Informatica Power Center 9.6, Informatica Data Quality (IDQ), Oracle 11, SQL Server, Unix, Tivoli, OBIEE 10, TOAD and Mainframes.

Confidential

ETL Informatica Tech Lead, Senior Informatica Developer

Responsibilities:

  • Participated in discussion with senior management team for the better understanding of business requirements.
  • Involved in Analysis phase of business requirement and design of the Informatica mappings using low level design documents.
  • Designed the project in such a way that there are 2 phases, SDE and SIL, as per the BI standards at Informatica (9.1) level. SDE - Source Dependent Extraction, where the data gets extracted from different source systems to staging tables. This is the staging area. SIL- Source Independent loading, where the transformed data will be loaded into the final target tables.
  • Helping the team in resolving technical/non-technical issues.
  • Participated in the DAC implementation.
  • Handling the work in best way between Onsite and Offshore teams.
  • The EP’s were scheduled at DAC level as per client specifications after creating the tasks, assembling ‘subject areas’ and building the ‘Execution plans’.
  • Prepare the road-map for the completion of tasks and plan to share the work among the team as per each individual capability.
  • Created Sessions, Reusable Worklets and workflows in Workflow Manager and Scheduled workflows and sessions at specified frequency.
  • Hands on experience in handling large volumes of data in production environments.
  • Involved in Performance tuning by determining bottlenecks in sources, mappings and sessions.
  • Created effective Test Cases and did Unit and Integration Testing to ensure the successful execution of data loading process.
  • Used Teradata as one of the source systems to extract the data using Informatica.
  • Troubleshooting the loading failure cases, including database problems
  • Prepared Documents like Technical Design Doc, Production Support Doc, Deployment Doc
  • Documented Mappings, Transformations and Informatica sessions.
  • Also involved in the data integration from multiple sources.
  • Analyzed Session Log in case session fails to resolve errors in mapping or session configurations.
  • Used TOAD to run SQL queries and validate the data in warehouse and mart.
  • Involved in designing the ETL testing strategies for functional, integration and system testing for Data warehouse implementation.
  • Created Materialized views at database level and refresh them at ETL level for ease access of data for OBIEE.

Environment: Informatica Power Center 9.1, OBIEE 10, DAC, Unix, Oracle 11, SQL, PL/SQL and Teradata.

Confidential

Informatica ETL Code Designer and Developer, PL/SQL Developer

Responsibilities:

  • Created effective Test Cases and did Unit and Integration Testing to ensure the successful execution of data loading process.
  • Tracked the status of work from time to time and provided timely updates to team lead.
  • Gathered requirements from Client through calls and emails.
  • Development and testing of mappings at Informatica level.
  • Created PL/SQL Packages in Oracle for data validations (like Database Validations i.e. primary, foreign key and check constraints) as per the functional and technical documents.
  • Provided test results to client and get sign-off for the same to deploy code in live environment.
  • Migrated the code from UAT to production environments.
  • Fix the issues as per the results of validations from PL/SQL packages in production.
  • Provided spontaneous response to the queries posted by business users and supporting teams.
  • Involved in designing the ETL testing strategies for functional, integration and system testing for Data warehouse implementation.
  • Used normalized data model in the target database.

Environment: Oracle 9i, SQL, Informatica 8.1, TOAD, SQL Developer, PL/SQL, Unix, Shell Scripts.

Confidential

ETL Designer and Developer

Responsibilities:

  • Analyzed the existing business model.
  • Interacted with business users on weekly basis in finalizing high-level business requirements.
  • Prepared detail-level design documents based on the discussions to get sign-off from business.
  • Analyzed the impact and provided estimations in PD’s to Client whenever there was a change in client requirements.
  • Created Informatica jobs to extract data from different external sources and populate into data warehouse tables/flat files by transforming the data as per business rules.
  • Involved in Unit testing and Integration testing of Informatica workflows.
  • Responsible for tuning the Performance of Informatica ETL mappings.
  • Reviewing and testing of mappings, sessions, workflows.
  • Analyzing the impact and providing the Estimations to Client in PD’s whenever there is a change in the requirement.
  • Provided the warranty support by interacting with production support teams.

Environment: Oracle 9i, SQL, Informatica, TOAD, SQL Developer, PL/SQL, UNIX, Shell Scripts.

Confidential

Informatica Developer

Responsibilities:

  • Created the detail design documents after analyzing the business and the databases.
  • Interaction with the business users for gathering the requirements.
  • Created Informatica Workflows as per the business rules to load data into oltp databases.
  • Responsible for Tuning the Performance of the ETL mappings.
  • Reviewing and testing of mappings, sessions, workflows.
  • Created scripts in Unix for scheduling the Informatica jobs
  • Shared the test results to Business and got the sign-off for migrating the code to Production.
  • Created scripts in Unix for scheduling the Informatica jobs
  • To add on, Unix scripts were also created for validating the data between sources and corresponding targets.

Environment: Oracle 9i, SQL, Informatica, TOAD, SQL Developer, PL/SQL, Unix, Shell Scripts.

Confidential

Informatica Developer

Responsibilities:

  • Created Workflows in Informatica as per the new requests from Onsite team.
  • Embedded new business logic in the Informatica code with minimal effect to existing code in production environment.
  • Tested the workflows and providing the test data to users.
  • After getting sign-off, moving them to the production environment.
  • Also providing support to the existing workflows in Production by debugging them whenever there they failed and resolving the issue.
  • Development of Cognos Cubes, Impromptu Reports according to the Requirements
  • Testing and proving the test data to users.
  • Publishing Cubes and impromptu reports to Upfront.
  • Support and Maintenance of Existing Cognos Cubes.

Environment: Oracle 9i, SQL, Informatica, TOAD, SQL Developer, PL/SQL, UNIX, Shell Script, Cognos 7.0

Confidential

Informatica Developer

Responsibilities:

  • Loading of data using ETL tool as Ab Initio.
  • Understanding the specific requirements of the module
  • Interaction with the client.
  • Coding using PL/SQL.
  • Database management and connectivity
  • Integration of the modules.
  • Creating test cases
  • Resolving the issues asked by Users
  • Responsible for overseeing the Quality procedures related to the project.

Environment: Informatica, Oracle, SQL Developer, PL/SQL, Autosys

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