ETL TESTER SKILLS, EXPERIENCE, AND JOB REQUIREMENTS

Updated: Jun 12, 2025 - The Extract, Transform, Load (ETL) Tester has extensive ETL testing and automation experience, is skilled in Python scripting with Pandas, NumPy, and pyodbc, and is adept at crafting medium to complex SQL queries. Expertise includes using TOAD, MySQL, and other database tools, proficient in Azure Data Factory, Synapse, and cloud-based testing environments. Demonstrates strong communication skills, proficiency with QTest Manager Tool, and deep familiarity with data comparison tools like QuerySurge.

Essential Hard and Soft Skills for a Standout Extract, Transform, Load Tester Resume
  • Defect Tracking
  • Test Case Design
  • Requirement Analysis
  • Test Execution
  • Prototyping
  • Data Validation
  • ETL Evaluation
  • Quality Assurance
  • Test Planning
  • Strategy Planning
  • Team Collaboration
  • Team Coordination
  • Communication
  • Accountability
  • Professionalism
  • Team Interaction
  • Process Optimization
  • Issue Documentation
  • Project Participation
  • Documentation

Summary of Extract, Transform, Load (ETL) Tester Knowledge and Qualifications on Resume

1. BS in Computer Science with 2 Years of Experience

  • Strong in Automation Testing (Cucumber) on DW applications. 
  • Should have experience testing applications that handle large data
  • Must have work worked as a tester for ETL applications
  • Experience using the AutoSys Scheduling tool
  • Experience in Functional Testing, Regression Testing, System Testing, Integration Testing and End-to-end testing.
  • Should be well versed with the Data flow and Test Strategy for ETL Testing.
  • Experience in ETL Informatica Testing
  • Strong SQL knowledge
  • Experience in the Financial (Banking/Capital Market) Domain
  • Should have worked on industry popular test management/defect management tools such as HP-ALM, QC, and JIRA.
  • Strong written and verbal communication skills

2. BS in Information Systems with 9 Years of Experience

  • Strong in Automation Testing (Cucumber) on DW applications. 
  • Should have experience testing applications that handle large data
  • Must have work worked as a tester for ETL applications – preferably Informatica
  • Experience using the AutoSys Scheduling tool
  • Experience in Functional Testing, Regression Testing, System Testing, Integration Testing and End to End testing
  • Should be well versed with the Data flow and Test Strategy for ETL Testing.
  • Experience in testing Database Applications to validate source-to-destination data movement and transformation.
  • Ability to Develop complex SQL scripts (Primarily SQL) for ETL.
  • Experience in testing backend applications primarily involving SQL queries
  • Experience in testing apps on AWS
  • Experience in analyzing ETL mapping documents
  • Expertise in Database testing with excellent SQL skills.
  • Experience testing Agile Development Projects
  • Knowledge of either Informatica, Ab Initio, SSIS, PL/SQL, ADF, or Synapse

3. BS in Data Science with 10 Years of Experience

  • Should have strong knowledge of writing SQLs.
  • Should have worked on Databases - MongoDB, Oracle, Teradata, DB2, and SQL ETL Testing techniques.
  • Experienced in Data modeling testing techniques.
  • Have an understanding of database concepts.
  • Have skills to create test cases and SQLs based on given requirements.
  • Have basic knowledge of the Insurance domain.
  • Should have debugging skills.
  • Should be independent in understanding the requirement to convert them as use case, test cases, SQL creation.
  • Extensive knowledge in the Insurance Domain with PandC Background.
  • Good technical, and analytical skills and is highly motivated for innovations and out-of-the-box solutions for projects.
  • Should be proficient with Test estimation techniques and solutions with problem statements.
  • Strong problem-solving and analytical skills
  • Ability to identify system bottlenecks with strong troubleshooting, and reasoning skills.

4. BS in Software Engineering with 4 Years of Experience

  • Experience in QA, manual and automated testing
  • Strong hands-on in automation testing and scripting
  • Proficient in Testing methodologies, Test case creation and Test case management tool
  • Ability to transform requirements into test cases with required coverage
  • Knowledge of SQL
  • Proficient with any test management tool and defect management tool
  • Ability to understand and promote process improvements 
  • Self-motivated with excellent written and verbal communication skills
  • A committed individual with a positive attitude and driven to succeed
  • Experience in mobile testing 
  • Experience in Web application and Web services (API) testing 
  • Experience working with financial markets 
  • Experience working in the onshore-offshore delivery model 
  • Working experience on CICD tools, DevOps
  • Expertise in using JIRA and any other test management tools like Quality Center

5. BS in Business Analytics with 5 Years of Experience

  • ETL testing experience
  • Experience in Python scripting Pandas NumPy PYODBC Parsing
  • Good knowledge of SQL and ability to write medium to complex queries which include Joins Aggregate functions Window Nested Queries wildcard operators and case statements
  • Experience in ETL automation testing with experience in handling different frameworks
  • Hands-on with TOAD MySQL DB Tools
  • Excellent oral and written communication skills
  • Familiar with data comparison tools for example QuerySurge
  • Experience in Azure data factory, Synapse
  • Experience working on Cloud environments
  • Experience working on Python, Test Automation
  • QTest manager Tool knowledge or experience
  • Experience in system integration testing user acceptance testing and production validation
  • Data validation with strong SQL experience

6. BS in Information Technology with 5 Years of Experience

  • Experience in MS SQL server, SSIS/ETL, and SSRS testing experience.
  • Expert in Database testing with excellent SQL skills and queries
  • Strong interpersonal and teamwork skills
  • Experience with defect tracking tools TFS, JIR, A etc
  • Ability to work on multiple assignments simultaneously and produce high-quality products
  • Ability to work effectively in a fast-paced environment with changing priorities and minimal supervision
  • Experience in Automation development in an agile environment
  • Working knowledge of test management tools like Microfocus ALM / Bugzilla / Visual Studio Test Manager /Maven /JIRA /qTest / TestLink/ TestRail/ Zephyr
  • Ability to effectively articulate technical challenges and solutions
  • Expertise in database testing including designing and manipulating test data, validating stored procs, jobs, triggers, and replication.
  • A good communicator with excellent verbal and written communication skills
  • Problem solver with detailed analytical and judgmental skills

7. BS in Computer Science with 5 Years of Experience

  • Experience in ETL Testing and data quality management.
  • Proficient at writing complex queries, cleaning data, and validating results using SQL in Oracle, Teradata, Azure Cloud Data Lake, and Snowflake databases.
  • Experienced in creating Test Cases, Test case management in Jira, and familiarity with the X-Ray Test framework.
  • Well-versed with File-based, Batch Files, Streaming data, API Services, data models, database queries and objects (views, indexes, stored procedures).
  • Experience with ETL, BI development and ETL and BI Reports Testing process.
  • Experienced in understanding Data requirements and transformation logic for ETL-based projects.
  • Knowledge of Snowflake, Azure Data Lake, Power BI and Microsoft cloud services.
  • Knowledge of Teradata, Azure Data Lake, Azure Cloud architecture and Snowflake
  • Experienced in understanding and creating complex Python scripts, SQL Queries in Snowflake, and DAX functions in Power BI.
  • Ability to communicate with different teams within the organization to gather understanding
  • Good knowledge of JIRA, Confluence, and Azure DevOps management tools.
  • Excellent attention to detail and analytical skills
  • Excellent communication skills including the ability to write clearly and succinctly in a variety of communication settings and styles, and communicate with technical and non-technical users.

8. BS in Information Systems with 5 Years of Experience

  • Strong working knowledge of ETL/DWH testing.
  • Knowledge of Dev Ops and how testing fits into this function.
  • Strong leadership skills and inquisitive attitude.
  • ETL/DWH testing experience.
  • SQL proficiency - My SQL, Oracle, MS Access.
  • Strong knowledge of SQL and Ab Initio for ETL Testing.
  • Experience writing and maintaining technical documentation.
  • Proficient in HP tools like Runner, Performance Center and Application Lifecycle Management, Quality Centre, Site scope
  • Experience in ETL/DWH testing and very good attention to detail. 
  • Have leadership skills

9. BS in Data Science with 1 Year of Experience

  • Strong knowledge of ETL/DWH testing and experience writing complex queries
  • Excellent technical skills and technical savvy
  • Excellent collaboration skills and ability to identify gaps in vendor testing
  • Have a thirst and knowledge of data automation to ensure quicker testing turnaround whilst ensuring quality is not compromised
  • Ability to confidently deputize for fortnight release review and sign off
  • Ability to ensure vendor testing thoroughly tests the end-to-end process flows and application capabilities
  • Good leadership skills while working collaboratively with vendors
  • Knowledge of Dev Ops and how testing fits into this function.
  • Experience with TDD/ATDD/BDD methodology.
  • Experience with BI, Data Analysis, and Data validation 

10. BS in Software Engineering with 3 Years of Experience

  • Experience coding in Python
  • Experience in ETL testing
  • Familiarity with report testing
  • Good ability to write basic SQL queries 
  • Experience running ETL jobs and validating reports
  • Experience as an individual contributor on a Quality Assurance or User-Acceptance Testing team in the data & analytics space.
  • Excellent communication to collaborate with 26 agile teams
  • Strong technical acumen, intermediate understanding of the data development life cycle and information management principles (ETL/ELT process, SDLC, metadata management, data quality, etc.)
  • Excellent communication skills 

11. BS in Business Analytics with 8 Years of Experience

  • Experience in ETL testing, feed processing, and creating dashboards.
  • Good in RegressionSIT and Database testing 
  • Strong Exposure to Testing end-to-end processes, and experience in QCALM and Jira. 
  • Good in Unix and SQL 
  • Ability to effectively present information and respond to questions from groups of managers, clients, and consumers.
  • Good skills of presentation included document preparation such as Microsoft PowerPoint and Excel files. 
  • Good experience in Data Loading, Data Transformation, and Data validation process.
  • Strong scripting skills to automate the process using Unix/Python/Perl
  • Ability to create/execute ETL Testing Process / Plan / Strategy based on project context
  • Excellent technical skills.
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