ETL/ELT Data Test Engineer

EL - OffS Tester 2

Req ID: 355636 

NTT DATA strives to hire exceptional, innovative and passionate individuals who want to grow with us. If you want to be part of an inclusive, adaptable, and forward-thinking organization, apply now.

We are currently seeking a EL - OffS Tester 2 to join our team in Bangalore, Karnātaka (IN-KA), India (IN).

Test Engineer

Role Overview

The Test Engineer is responsible for executing test cases and validating data accuracy for Python-based extract/load pipelines and dbt transformation models. This role focuses on hands-on testing activities to ensure data is landed as-is from source systems and that transformed outputs align with expected business logic derived from Informatica workflows. The Test Engineer works under the guidance of the Senior Test Engineer and Technical Leads to support wave-based migration delivery for SWP and IMS.

Key Responsibilities

· Execute test cases for Python-based extract/load processes, validating:

o Record counts

o Field-level data accuracy

o Schema and data type consistency

· Perform dbt transformation validation using SQL-based reconciliation queries.

· Compare legacy Informatica outputs with dbt-generated results based on agreed criteria.

· Log, track, and re-test defects through resolution.

· Support SIT and UAT test cycles across multiple migration waves.

· Maintain test artifacts, evidence, and execution logs.

· Assist in regression testing as new waves are onboarded.

· Collaborate with Data Engineers to clarify expected outputs and resolve issues.

Required Skills & Experience

· 3–5 years of experience in data testing or ETL testing roles

· Strong SQL querying skills

· Experience validating data pipelines and transformations

· Basic familiarity with Python-based data pipelines (reading logs, outputs)

· Understanding of ETL/ELT concepts and data reconciliation techniques

· Experience working in Agile or wave-based delivery models

About NTT DATA

NTT DATA is a $30 billion business and technology services leader, serving 75% of the Fortune Global 100. We are committed to accelerating client success and positively impacting society through responsible innovation. We are one of the world's leading AI and digital infrastructure providers, with unmatched capabilities in enterprise-scale AI, cloud, security, connectivity, data centers and application services. our consulting and Industry solutions help organizations and society move confidently and sustainably into the digital future. As a Global Top Employer, we have experts in more than 50 countries. We also offer clients access to a robust ecosystem of innovation centers as well as established and start-up partners. NTT DATA is a part of NTT Group, which invests over $3 billion each year in R&D.

Whenever possible, we hire locally to NTT DATA offices or client sites. This ensures we can provide timely and effective support tailored to each client’s needs. While many positions offer remote or hybrid work options, these arrangements are subject to change based on client requirements. For employees near an NTT DATA office or client site, in-office attendance may be required for meetings or events, depending on business needs. At NTT DATA, we are committed to staying flexible and meeting the evolving needs of both our clients and employees. NTT DATA recruiters will never ask for payment or banking information and will only use @nttdata.com and @talent.nttdataservices.com email addresses. If you are requested to provide payment or disclose banking information, please submit a contact us form, https://us.nttdata.com/en/contact-us.

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Experience Level

Mid Level