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⏰ Full-time

Mainframe Tester

Ascendion
Location 📍 Chester, United Kingdom
Posted 📅 May 23, 2026
Work Type ⏰ Full-time

Position Overview

We are looking for a Mainframe Tester with experience in testing and automating mainframe applications.

Responsibilities

* Develop and maintain automated test scripts using COBOL, JCL, and DB2.

* Design, execute, and automate test cases for functionality, performance, and security validation.

* Collaborate with developers and business analysts to understand requirements and identify test scenarios.

* Perform functional, regression, and integration testing.

* Track and report defects and support issue resolution.

Required Skills

* Experience in Mainframe Testing.

* Strong knowledge of COBOL, JCL, and DB2.

* Understanding of SDLC/STLC and testing methodologies.

* Good analytical and communication skills.

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Job Details

Employment Type
Full-time
📊
Category
computer-and-mathematical
🏠
Work Arrangement
On-site
📍
Location
Chester, United Kingdom