Mainframe Datacom Engineer - IBM Z

CBSbutler Holdings Limited trading as CBSbutler; United Kingdom; Remote; GBP 55,000 - 92,000; Part time

Job summary

CBSbutler is seeking an experienced Mainframe Datacom Engineer to support critical banking applications within a large-scale IBM Z / z/OS environment. You will administer Broadcom Datacom databases and collaborate with global teams across Spain and Latin America.

Ideal candidates will have extensive Datacom and IBM z/OS experience, with COBOL application support and strong problem-solving abilities. Spanish language skills are highly desirable for this role that is fully remote from the UK.

Qualifications

• Strong hands-on experience with Broadcom Datacom / CA Datacom.
• Extensive IBM z/OS experience and knowledge of JCL, TSO/ISPF, SDSF, CICS, VSAM, RACF.
• Experience supporting COBOL applications and performance tuning.
• Experience working in large-scale enterprise or regulated environments.

Responsibilities

• Administer and support Broadcom Datacom / CA Datacom databases on z/OS.
• Perform database provisioning, configuration, monitoring, capacity planning and performance tuning.
• Undertake backup, recovery, reorganisation and database maintenance using Datacom utilities.
• Monitor availability and proactively resolve database and application performance issues.
• Support incident, problem and change management processes.
• Support IBM Z infrastructure, batch processing and associated mainframe technologies.
• Work with JCL, TSO/ISPF, SDSF, CICS, VSAM and RACF.
• Support COBOL-based applications and troubleshoot database/application issues.
• Assist with application releases, technical design and performance optimisation.
• Participate in disaster recovery and business continuity exercises.
• Contribute to mainframe modernisation, automation, API enablement, CI/CD and DevOps initiatives.
• Identify opportunities to improve operational efficiency through scripting and automation.

Skills

Automation scripting

Spanish language skills

Problem-solving

Documentation

Stakeholder management

Tools

Broadcom Datacom / CA Datacom

IBM z/OS

JCL

TSO/ISPF

SDSF

CICS

VSAM

RACF

COBOL

Git

Jenkins

Ansible

UrbanCode

Job description

Mainframe Engineer - Datacom IBM Z

+ 3 month initial contract + expected extensions

+ Paying upto £500 per day - Inside IR35

+ Fully remote

Role Overview

Our client is seeking an experienced Mainframe Datacom Engineer to support and enhance critical banking applications within a large-scale IBM Z / z/OS environment.

You will be responsible for the administration, support, optimisation and modernisation of Broadcom Datacom databases, working closely with application development, infrastructure, DBA and international teams across Spain and Latin America.

Spanish language skills are highly desirable.

Key Responsibilities

• Administer and support Broadcom Datacom / CA Datacom databases on z/OS.
• Perform database provisioning, configuration, monitoring, capacity planning and performance tuning.
• Undertake backup, recovery, reorganisation and database maintenance using Datacom utilities.
• Monitor availability and proactively resolve database and application performance issues.
• Support incident, problem and change management processes.
• Support IBM Z infrastructure, batch processing and associated mainframe technologies.
• Work with JCL, TSO/ISPF, SDSF, CICS, VSAM and RACF.
• Support COBOL-based applications and troubleshoot database/application issues.
• Assist with application releases, technical design and performance optimisation.
• Participate in disaster recovery and business continuity exercises.
• Contribute to mainframe modernisation, automation, API enablement, CI/CD and DevOps initiatives.
• Identify opportunities to improve operational efficiency through scripting and automation.

Essential Skills & Experience

• Strong hands-on experience with Broadcom Datacom / CA Datacom.
• Excellent knowledge of Datacom architecture, utilities, database structures and performance tuning.
• Experience with backup/recovery, reorganisation and capacity management.
• Extensive IBM z/OS experience.
• Strong knowledge of JCL, TSO/ISPF, SDSF, CICS, VSAM, RACF and batch processing.
• Experience supporting COBOL applications.
• Strong troubleshooting and problem-solving capability.
• Understanding of database security, access control and audit requirements.
• Experience working within large-scale enterprise or highly regulated environments.
• Strong communication, stakeholder management and documentation skills.

Desirable

• Spanish language skills - professional/fluent level highly desirable.
• Banking, payments or financial services experience.
• Experience with DevOps, automation and CI/CD.
• Knowledge of Git, Jenkins, Ansible, UrbanCode or similar tooling.
• Experience with API integration and application modernisation.
• Exposure to hybrid cloud and distributed platform integration with mainframe environments.
• Agile delivery experience.
• Broadcom Datacom certification or equivalent practical experience.

The Ideal Candidate

A technically strong Mainframe Engineer with deep Datacom expertise and a modern engineering mindset. You will be comfortable supporting complex, enterprise-scale environments while collaborating with international teams and contributing to the ongoing modernisation and automation of critical mainframe platforms