Senior Mainframe Backend Engineer (COBOL/DB2) - Remote

KCS IT; Brussel Hoofdstad; Hybrid; EUR 80,000 - 110,000; Full time

Job summary

KCS IT is searching for a Senior Backend Software Engineer (Mainframe) to join our international teams. You will work on complex mainframe applications, translating business needs into robust technical solutions and ensuring quality through testing and reviews.

The role requires strong communication in Dutch and English, collaboration with multiple stakeholders, and willingness to participate in an on-call rotation. Hybrid or onsite opportunities across the Benelux region are available.

Qualifications

• Over 5 years of experience in BackEnd Software Development in Mainframe environments.
• Solid technical experience with COBOL, PL/1, EGL, DB2, IDz Workbench, CI/CD, GitHub and Changeman.
• Ability to translate business requirements into functional designs and to define program structures.

Responsibilities

• Understand functional specifications and translate them into technical designs.
• Create and execute test cases, modify existing programs and support production environments.
• Document changes to existing applications and participate in code reviews.
• Resolve incidents and defects with proper follow-up until closure.
• Perform technical integration testing with interfacing applications.
• Work independently and adapt quickly to new environments and technologies.

Skills

Mainframe

COBOL

PL/1

EGL

DB2

IDz Workbench

CI/CD

GitHub

Changeman

Dutch

English

Communication

Tools

IDz Workbench

CI/CD Pipelines

Job description

KCS IT is searching for a Senior Backend Software Engineer (Mainframe) to join our international teams. You will work on complex mainframe applications, translating business needs into robust technical solutions and ensuring quality through testing and reviews.

The role requires strong communication in Dutch and English, collaboration with multiple stakeholders, and willingness to participate in an on-call rotation. Hybrid or onsite opportunities across the Benelux region are available.