Maheswari Chinnan
Helsinki
Summary
Motivated and passionate job seeker with 11 years of IT experience and knowledge in data warehousing, data analysis, data migration, ETL process and testing. Practiced in helping companies with diverse transition and migration, including sensitive data and massive big data installations. Promotes extensive simulation and testing to provide smooth ETL execution. Background writing and implementing test cases, developing testing plans and identifying use cases. Fully versed in complete SDLC. Proven to understand customer requirements and translate into actionable project plans.
Overview
12
12
years of professional experience
1
1
Certification
Work History
Data Migration Specialist
Tata Consultancy Services
12.2018 - Current
- Participated in requirements meetings and data mapping sessions with stakeholders to understand business needs, define transformation logic and data quality rules
- Quickly learned salesforce and applied them to daily tasks, improving efficiency and productivity
- Provided technical architecture and design of CRM data loads according to defined target API structure
- Improved legacy CRM to Salesforce data load performance with Vlocity clone approach using SOAP and REST API
- Prepared reconciliation reports
- Created user stories and tasks using JIRA to track all developments and daily work activities
- Authored and maintained well-organized, efficient and successful manual test cases for entire team
- Documented testing procedures for developers and future testing use
Team Lead
Tata Consultancy Services
05.2018 - 11.2018
- Worked with Agile methodology, Enhancement in BI hub scorecards application which defines key business metrics reported such as customer base, sales, install, churns, etc
- Streamlined data lag and data discrepancies in end to end data flow from various source systems to Customer Information Warehouse (CIW) and then to KPI database in Netezza
- Implemented consistent approach to timestamp, metadata management, proven restart process and reliable outage catch-up
- Performance improvement of identified interfaces or jobs using pushdown optimization concept in Informatica
- Enhanced job control framework and responsible for project deliverable
- Mentored team of 4 experienced and fresh minds
Senior ETL Developer
Tata Consultancy Services
01.2015 - 04.2018
- Serviced enhancement requests in Colorado Regional data store, analyze data & application issues to provide feasible solutions
- Monitored the system for its performance and stability and design appropriate solution in case of issues
- Automation to mask PHI data using PL/SQL procedures
- Monitored resolution of bugs, tested fixes and helped developers tackle ongoing problems by providing QA perspective
- Tested functional and compatibility of new programs or updates in comparison to existing applications
- Operated under Agile and Scrum frameworks to complete releases every 2 weeks and well-organized sprints
- Debugged code and located root causes of problems by reviewing configuration files and logs
ETL Developer
Cognizant Technology Solutions
09.2010 - 12.2014
- Involved in all phases of the project life cycle from requirement gathering through testing and maintenance
- Responsible for preparing scope document, technical specification document and SDLC document
- Design, development and testing of mappings and workflows using ETL tool Informatica PowerCenter
- Perform/review unit testing & regression testing
- Incorporate dynamic requirement changes and suggest designs to handle the changes effectively
- Develop scripts using UNIX shell scripting
- Wrote and optimized in-application SQL statements
- Schedule and monitor loads using Work Load Manager
Education
Master of Technology - Software Development and Management
Vellore Institute of Technology
Vellore11.2013
Bachelor of Engineering - Computer Science and Engineering
Coimbatore Institute of Engineering And Information Technology
Chennai, India05.2010
Skills
- Informatica PowerCenter
- Data Migration to Cloud
- Salesforce Admin
- Power BI
- Tableau
- Python
- Oracle SQL developer
- Netezza, Teradata
- Unix Shell Scripting
- Rest API
- XML, JSON
- JIRA
- Agile Methodologies
- Team Management
Websites
Certification
- Microsoft Certified Power BI Data Analyst Associate
Additional Information
- Date of birth - 20/03/1989
- Nationality - Indian with a valid Finland work permit
Languages
- Tamil
- English
Interpersonal Skills
- Versatile and Adaptable
- Logical Thinker and Attention to details
- Positive and result oriented approach
Hobbies
- Badminton
- Cooking
- Craft work
Work Availability
monday
tuesday
wednesday
thursday
friday
saturday
sunday
morning
afternoon
evening
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Quote
The person who says it cannot be done should not interrupt the person who is doing it.
Chinese proverb
Timeline
Data Migration Specialist
Tata Consultancy Services
12.2018 - Current
Team Lead
Tata Consultancy Services
05.2018 - 11.2018
Senior ETL Developer
Tata Consultancy Services
01.2015 - 04.2018
ETL Developer
Cognizant Technology Solutions
09.2010 - 12.2014
Master of Technology - Software Development and Management
Vellore Institute of Technology
Bachelor of Engineering - Computer Science and Engineering
Coimbatore Institute of Engineering And Information Technology
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