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Senior Data Test Engineer, ETL/Data Tester

2 months ago

Chantilly, United States Ampcus Full time
Position: Senior Data Test Engineer, ETL/Data Tester

Duration: Full time

Location Chantilly, VA

Responsibilities:
  1. Active involvement in the software engineering lifecyle that includes design, development, test and implement data-centric applications and provide application support.
  2. Write computer programs to store, locate, retrieve documents, data and information.
  3. Design, develop, and maintain Data/ETL validation scripts to enable data-driven insights
  4. Identify and implement enhancements to existing ETL processes
  5. Work with clients to design, build, assembly and configure applications including the technical data architecture components as per technical and business specifications
  6. Collaborate with data scientists, data architects, and other stakeholders to ensure successful data engineering projects
  7. Lead "Big Data" migration or consolidation projects for various clients
  8. Review and develop test data scripts based on ETL mapping artifacts and other technical documentation.
  9. Execution and detailed analysis of test data scripts
  10. Defines and tracks quality assurance metrics such as defects, defect counts, test results and test status.
  11. Documents all problems and assists in their resolution.
  12. Write/edit and test macros, scripts, parsers, and small programs to process, load or analyze data, and perform configuration management before entering into a production baseline
  13. Provide technical support and troubleshooting for data engineering projects
  14. Ensure data quality and accuracy
  15. Stay up-to-date with the latest data engineering and ETL development techniques and technologies
  16. Monitor data usage to ensure compliance with applicable data privacy regulations
  17. Create and maintain technical/development documentation

Requirements

Education and Experience:

Bachelor's degree in computer science, IT or related with at least 9 years of experience in software engineering and testing backend applications primarily involving complex SQL queries.

Required Qualifications
  • 10 to 1 5 years of relevant work experience in testing backend application primarily involving complex SQL queries
  • At least 10 years' experience in:
    • Testing "Big Data " and Enterprise Data warehouse
    • Writing and Executing complex queries in SQL
    • Experience in analyzing ETL mapping (STTM) documents
    • Writing and Executing ETL scripts and Stored Procedures
    • Development of SQL scripts based on ETL mapping and database documents to validate data inputs and compare data outputs
    • Using tools such as Informatica (PowerCenter)
    • Integration testing - Services, ETL, Database (SQL/Oracle ) - covering DML Validations, Batch Monitoring etc.
    • Knowledge of PostgreSQL
    • Cloud databases (AWS /Redshift/Snowflake)/Relational databases
  • Experience in working with critical Financial Applications
  • Advanced level of expertise in Database testing (data cleansing, transforming, mapping, data validation) with excellent PL /SQL skills
  • Ability to create and execute test plans, strategies and test cases for applications that use ETL components
  • Experience with large-scale (terabytes) database development, large-scale file manipulation, data modeling, data


Critical Skills
  • Ability to work on multiple assignments simultaneously and produce high quality products
  • Very good communication skills
  • Strong problem solving and analytical skills demonstrated by the ability to assimilate new information, understand complex topics and arrive at sound analysis and judgment
  • Should be a good team player
  • Experience testing Waterfall / Agile Development Projects
  • Keeps abreast of current technology trends
  • Familiar with application development best practices
  • Well-versed in the use of Microsoft Office Tools
  • Big Data
Preferred Qualifications
  • Basic knowledge on how to use Tidal and Postman is a plus


Only candidates from the local area will be taken into consideration