Summary
Overview
Work History
Education
Skills
Accomplishments
Certification
Languages
Interests
Timeline
Generic

Monika Seles Jesu

Chennai

Summary

Dynamic Data Migration Specialist with proven expertise at Cognizant Technologies Solutions, adept in ETL process design and SQL validation scripting. Successfully led complex migrations, ensuring data quality and compliance. Strong collaborator with exceptional problem-solving skills, driving efficiency in cloud migration projects using Azure Synapse, AWS DMS, etc.

Overview

11
11
years of professional experience
1
1
Certification

Work History

Data Migration Specialist

Cognizant Technologies Solutions
03.2025 - Current
  • Led data migration projects, data analyses and framework validation.
  • Coordinated data migration activities for ongoing projects to confirm alignment of progress with prescribed timelines and execution milestones.
  • Researched and resolved complex issues discovered during migrations.
  • Liaised with customer project teams, replying to inquiries and providing information on ongoing processes.
  • Collaborated with internal teams and customer representatives to determine data reconciliation strategy.
  • Analyzed customer prescribed solutions to bring forth the pros and cons of the strategy.
  • Created data mapping documentation for use in migration efforts.
  • Offered troubleshooting assistance to junior personnel during ETL testing jobs.
  • Conducted client-facing demo calls to present validation artifacts, ensuring transparency and evidencing successful data migration aligned with governance protocols.


Migration Test Lead (ETL)

Cognizant Technologies Solutions
11.2021 - 02.2025
  • Conducted due diligence by analyzing existing SQL scripts and adapting them for Azure Synapse compatibility; identified code-level and data-related gaps that enabled targeted test script optimization and ensured smoother validation during migration.
  • Collaborated with developers and product owners to stay current on requirements and intended functionality.
  • Reviewed project specification documentation to create appropriate testing methodologies.
  • Wrote detailed requirements to create robust test plans and realistic work estimates for testing phases.
  • Performed Root Cause Analysis on the issues that interrupted the intended data correctness & completeness during the migration.
  • Provided reports on milestones, issues and test concerns to project managers for assistance.

Test Analyst

Infosys Technologies
10.2018 - 11.2021
  • Reviewed all test cases and test scripts for quality and identified additional areas to review.
  • Optimized test cases to maximize success of ETL -migration testing.
  • Directed team members to follow specific testing standards and guidelines as outlined in project requirements.
  • Met with quality assurance, developers and project managers to assess scope and sequence of project.
  • Performed Jenkins job run based deployments in Test Environments.
  • Ensured the data quality is aligned during the data migration from legacy system to cloud platforms.

Test Engineer

Infosys Technologies
09.2017 - 10.2018
  • Designed detailed test scenarios covering edge cases and multiple validation paths, supported by well-curated test data to ensure robust coverage across ETL layers.
  • Executed end-to-end ETL testing across extraction, transformation, and loading stages, validating data accuracy, completeness, and seamless migration.
  • Performed data quality checks to assess consistency, integrity, and reliability across systems, identifying discrepancies like duplicates, null values, and schema drift.
  • Validated source-to-target schema mappings, key constraints, and ensured alignment with governance standards for structured compliance.
  • Conducted performance testing to evaluate ETL job efficiency and detect bottlenecks, contributing recommendations for optimization and improved throughput.
  • Managed defect lifecycle by logging issues, retesting after fixes, and collaborating with development teams to ensure root cause resolution using JIRA/ALM.
  • Maintained well-documented test scripts, execution logs, and traceability matrices to support audit requirements and stakeholder transparency.
  • Created and maintained automation scripts using SQL and PySpark to streamline repetitive validations and increase test reliability.
  • Supported compliance and audit readiness by preparing evidence-based validation reports that demonstrated adherence to data governance frameworks and migration integrity.

Change Management Analyst

Infosys Technologies
08.2016 - 09.2017
  • Coordinated with cross-functional teams—including development, infrastructure, security, and business stakeholders—to ensure seamless change migration/patch updates and minimal disruption.
  • Validated the prerequisites before changes were approved to migrate.
  • Facilitated change approval processes by preparing migration documentation, presenting risk assessments, and securing stakeholder buy-in through structured CAB sessions.
  • Worked in server swap events.

Systems Engineer

Infosys Technologies
05.2015 - 03.2016
  • Generated and compared insurance claim reports to validate data accuracy and identify discrepancies across systems.
  • Utilized HPBSM tool for structured report generation and monitoring to support operational insights and audit readiness.
  • Engaged directly with clients to discuss report findings, clarify discrepancies, and address queries, fostering transparent communication.
  • Designed prerequisite workflows and analytical sketches to support automation of recurring insurance reports, enhancing efficiency and reducing manual intervention.

Systems Engineer Trainee

Infosys Technologies
12.2014 - 05.2015
  • Technical Foundation Building: Completed intensive classroom sessions covering programming fundamentals, object-oriented concepts, data structures, DBMS, and software engineering using languages like Java and SQL.
  • Hands-On Assignments & Assessments: Solved coding challenges, participated in mock exams (FA1–FA6), and completed hands-on labs to demonstrate practical understanding of core technologies.
  • Project Simulation & Stream Training: Engaged in stream-specific modules such as Middleware technologies - weblogic, web sphere etc. real-world project scenarios and applying learned concepts.
  • Behavioral & Communication Skills: Attended workshops on email etiquette, presentation skills, and client communication to prepare for global delivery roles.


  • Team Collaboration: Worked in peer groups to complete assignments, share knowledge, and participate in collaborative learning activities.
  • Time Management & Discipline: Followed a rigorous daily schedule balancing classroom sessions, assignments, and self-study, fostering professional discipline and accountability.
  • Campus Engagement: Participated in extracurricular activities, networking events, and Infosys culture-building programs to develop interpersonal skills and team spirit.

Education

M.Tech - Information Technology

Sathyabama University
Chennai
04-2014

B.E - Computer Science

Loyola Institute of Technology And Science
Nagercoil, India
05-2012

Skills

  • ETL process design expertise
  • Expertise in SQL validation scripting
  • Source-to-target structure translation
  • Data quality assurance
  • Experienced with Azure Synapse, AWS DMS, Snowflake, and Microsoft Fabric for cloud migration
  • Anomaly detection and data standardization
  • Incremental load testing expertise
  • SQL-based automation for testing efficiency

Accomplishments

· AIA Annual award winner – 2022 cognizant

· Best delivery squad – 2022 cognizant

· Unit Excellence Award - 2018 Infosys

· INSTA award Winner (twice - Infosys)

Certification

· Business communications Level 6

· Tricentis certified Automation Specialist Level 2

Languages

English
Tamil
Hindi

Interests

Pencil sketching

Music


Timeline

Data Migration Specialist

Cognizant Technologies Solutions
03.2025 - Current

Migration Test Lead (ETL)

Cognizant Technologies Solutions
11.2021 - 02.2025

Test Analyst

Infosys Technologies
10.2018 - 11.2021

Test Engineer

Infosys Technologies
09.2017 - 10.2018

Change Management Analyst

Infosys Technologies
08.2016 - 09.2017

Systems Engineer

Infosys Technologies
05.2015 - 03.2016

Systems Engineer Trainee

Infosys Technologies
12.2014 - 05.2015

M.Tech - Information Technology

Sathyabama University

B.E - Computer Science

Loyola Institute of Technology And Science

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Monika Seles Jesu