Backend Tester

SIERTEK LTD

Backend Tester for SierTeK, responsible for testing and validating backend data changes in ETL workflows. Collaborating with cross-functional teams to ensure data integrity.

Posted 6/30/2026full-timeRemote • Ohio • 🇺🇸 United StatesMid-LevelSeniorWebsite

Tech Stack

Tools & technologies

ETLSQL

About the role

Key responsibilities & impact

Collaborate with the team to analyze and define system and data requirements, identifying opportunities for improvement
Develop, maintain, and execute test cases for backend data changes, including ETL, database, and API testing
Validate data transformation logic, data movement, schema changes, and interface behavior across source and target systems
Design test approaches to ensure adequate coverage of backend changes and regression impact
Identify, document, and track defects, data inconsistencies, and integration issues through resolution
Create and maintain test data, test evidence, and supporting test documentation
Work closely with developers, data engineers, and analysts to ensure backend changes align with business and technical requirements
Verify data accuracy, completeness, consistency, and traceability across systems
Support testing of new functionality, enhancements, and production fixes within an Agile delivery environment
Participate in code and solution review discussions as needed to improve testability and quality
Understand operational and system views to inform testing priorities and risk areas
Contribute to continuous improvement of testing processes, methods, and documentation quality

Requirements

What you’ll need

Bachelor’s degree in IT, Computer Science, or related field
Minimum 4 years of directly relevant industry experience
Proven experience as a backend tester, QA analyst, or similar testing role
Experience testing ETL processes, database changes, and APIs
Knowledge of testing methodologies and tools
Familiarity with SQL for backend validation
Strong documentation, analysis, and communication skills
Ability to support Agile team delivery and coordinate with distributed stakeholders
Strong knowledge of backend testing, including ETL, database, and API validation
Familiarity with testing methodologies, test design, and defect lifecycle management
Ability to analyze data flows and identify issues in backend processing and integrations
Understanding of SQL and database concepts for test validation
Ability to work in a cross-functional team
Strong problem-solving skills and attention to detail.
Excellent communication skills.
Experience supporting code modernization and refactoring efforts is a plus.

Benefits

Comp & perks

SierTeK is an equal opportunity employer.
Employment is based on qualifications, merit, and business need.

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Hard Skills & Tools

Backend TestingETL Process TestingAPI ValidationSQL ProficiencyTest Case DevelopmentData ValidationDefect Lifecycle ManagementTest DesignData AnalysisDocumentation

Soft Skills

Strong Communication SkillsProblem-Solving SkillsAttention to DetailCollaborationAnalytical Skills