Data Tester Project Based

Nexttec Technology Outsourcing; Riyadh; On-site; SAR 100,000 - 145,000; Full time

Job summary

Nexttec Technology Outsourcing is seeking a Data Tester for a 6 months project. The candidate will validate data pipelines, ETL workflows, data quality, and BI visualizations across platforms to ensure accurate data delivery to stakeholders.

Responsibilities include writing complex SQL queries, validating data across SQL Server, Oracle, Teradata, and DB2, and testing BI dashboards with Cognos, Power BI, and Tableau. Strong analytical skills and defect-tracking experience are required.

Qualifications

• Experience validating data pipelines, ETL workflows and BI visualizations.
• Strong SQL skills with complex queries, data validation and reconciliation.
• Knowledge of data warehouse concepts and testing data quality.
• Experience with defect tracking and test management tools.

Responsibilities

• Validate data pipelines, ETL workflows, and data quality across platforms.
• Test data accuracy, completeness, consistency, and reconciliation.
• Validate reports, dashboards and KPIs using BI tools (Cognos, Power BI, Tableau).
• Translate business requirements into test scenarios and cases.
• Document and track defects throughout the testing lifecycle.

Skills

SQL proficiency

Analytical thinking

Test design

Problem solving

Data validation

Tools

SQL Server

Oracle

Teradata

DB2

Informatica

Talend

Airflow

IBM Cognos

Power BI

Tableau

Alibaba DTS

EMR severless

Spark

Job description

Position: Data Tester 6 months project

Nexttec Technology Outsourcing is seeking a highly skilled

We are seeking an experienced Data Testing Engineer with strong knowledge of data quality, data integration, and business intelligence tools. The ideal candidate will be responsible for validating data pipelines, ETL workflows, data quality, and visualizations across various platforms, ensuring accurate and high-quality data delivery to business stakeholders.

• Strong SQL skills with experience writing complex queries, data validation, reconciliation, and performance analysis.

• Hands-on experience with databases such as SQL Server, Oracle, Teradata, DB2

• Good understanding of ETL concepts and experience working with ETL tools such as Informatica, Talend, Airflow, or similar platforms.

• Solid knowledge of Data Warehouse concepts, including Fact & Dimension models, Star/Snowflake schemas, SCDs, and Data Marts.

• Experience in Data Quality Testing, including data completeness, accuracy, consistency, integrity, and reconciliation testing.

• Experience in ETL/Data Integration Testing, including Source-to-Target validation and transformation testing.

• Knowledge of BI Testing and validating reports, dashboards, KPIs, and visualizations using tools such as IBM Cognos., Power BI and Tableau.,

• Ability to analyze business requirements, mapping documents, and translate them into effective test scenarios and test cases.

• Experience with defect tracking and test management tools.

• Strong analytical and problem-solving skills.

Skills:

• Alibaba DTS, and EMR severless. Spark

• Advanced SQL queries

• Testing ETL hands-on experience

Nice to Have

• Experience with Cloud Data Platforms (Azure, AWS, GCP).

• Basic knowledge of Python for data validation and automation.

• Experience with Data Governance and Metadata Management concepts.

• Knowledge of Agile/Scrum methodologies.