> Markdown version of [/jobs?country=UK&q=z%2Fos](https://www.wearedevelopers.com/jobs?country=UK&q=z%2Fos). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Developer Jobs Region: UK 50 jobs found matching "z/os" ## IBM z/OS Integration Consultant - **Company:** NTT Ltd. - **Location:** Sheffield, UK - **Contract:** Permanent contract - **Published:** July 23, 2026 - [View job](https://www.wearedevelopers.com/jobs/ext/1392800-ibm-z-os-integration-consultant) - [Apply](https://dejobs.org/x/x/75C1D38382E04EFE908F2820F751265D/job/) ## Z/0S Engineer - **Company:** LA International Computer Consultants - **Location:** London, UK - **Salary:** £104,000.0 - £130,000.0 - **Contract:** Permanent contract - **Published:** August 20, 2026 - [View job](https://www.wearedevelopers.com/jobs/ext/2140325-z-0s-engineer) - [Apply](https://www.careerboard.com/pt/en/find-jobs-in-United-Kingdom/-546E69C74C7D3BB2B7/) ## Database Administrator Specialist - **Company:** Accenture - **Location:** Staffordshire, UK - **Experience:** Experienced - **Contract:** Permanent contract - **Published:** August 12, 2026 - [View job](https://www.wearedevelopers.com/jobs/ext/2030912-database-administrator-specialist) - [Apply](https://www.careerjet.co.uk/job/gbdc3ba60ce59252a8483eb37c9bd0fbe3/eaa) ## Mainframe Night Operator - **Company:** Mediaocean - **Location:** London, UK - **Contract:** Permanent contract - **Published:** June 1, 2026 - [View job](https://www.wearedevelopers.com/jobs/ext/324436-mainframe-night-operator) - [Apply](https://uk.indeed.com/viewjob?jk=ad94dc5837269332) ## IBMz Network Engineer - **Company:** NTT DATA - **Location:** Sheffield, UK - **Contract:** Permanent contract - **Published:** July 29, 2026 - [View job](https://www.wearedevelopers.com/jobs/ext/1475166-ibmz-network-engineer) - [Apply](https://careers-inc.nttdata.com/talentcommunity/apply/1411808900/?locale=en_US) ## Mainframe Storage Specialist - Remote - **Company:** LA International Computer Consultants - **Location:** London, UK (Remote available) - **Contract:** Temporary contract - **Published:** August 20, 2026 - [View job](https://www.wearedevelopers.com/jobs/ext/2143076-mainframe-storage-specialist-remote) - [Apply](https://www.careerboard.com/pt/en/find-jobs-in-United-Kingdom/-AEF371769E2C83176D/) ## Mainframe Storage Specialist - **Company:** LA International Computer Consultants - **Location:** Stoke-on-Trent, UK (Remote available) - **Experience:** Experienced - **Contract:** Temporary to permanent - **Published:** August 22, 2026 - [View job](https://www.wearedevelopers.com/jobs/ext/2174556-mainframe-storage-specialist) - [Apply](https://www.free-work.com/en-gb/tech-it/job-mission/software-certifier/mainframe-storage-specialist-remote) ## DB2 Mainframe Administrator - Remote - **Company:** LA International Computer Consultants - **Location:** UK (Remote available) - **Contract:** Temporary contract - **Published:** August 20, 2026 - [View job](https://www.wearedevelopers.com/jobs/ext/2143422-db2-mainframe-administrator-remote) - [Apply](https://www.careerboard.com/pt/en/find-jobs-in-United-Kingdom/-94269F01E4E14ECCA6/) ## Mainframe DB2 System Specialist - **Company:** GCS Ltd - **Location:** Knutsford, UK - **Contract:** Permanent contract - **Published:** June 3, 2026 - [View job](https://www.wearedevelopers.com/jobs/ext/329840-mainframe-db2-system-specialist) - [Apply](https://www.apply4u.co.uk/jobs/x/38153994/) ## Senior Infrastructure Specialist - zDatabase IMS Sysprog - **Company:** Lloyds Banking Group - **Location:** Edinburgh, UK - **Experience:** Expert - **Salary:** £72,702.0 - £80,780.0 - **Contract:** Permanent contract - **Published:** July 31, 2026 - [View job](https://www.wearedevelopers.com/jobs/ext/1616663-senior-infrastructure-specialist-zdatabase-ims-sysprog) - [Apply](https://uk.indeed.com/viewjob?jk=06cc3a98fc5c3d6c) ## Mainframe Network Engineer - **Company:** Xcelyst Limited - **Location:** London, UK - **Salary:** £91,000.0 - £104,000.0 - **Contract:** Temporary contract - **Published:** July 31, 2026 - [View job](https://www.wearedevelopers.com/jobs/ext/1639263-mainframe-network-engineer) - [Apply](https://uk.indeed.com/viewjob?jk=b73811b0395f539e) ## DB2 Database Administrator (DBA) - **Company:** NTT DATA - **Location:** UK (Remote available) - **Experience:** Expert - **Contract:** Permanent contract - **Published:** August 18, 2026 - [View job](https://www.wearedevelopers.com/jobs/ext/2100156-db2-database-administrator-dba) - [Apply](https://careers-inc.nttdata.com/talentcommunity/apply/1420458700/?locale=en_US) ## Infrastructure Engineer, Db2 - **Company:** National Westminster Bank - **Location:** London, UK (Remote available) - **Salary:** £58,821.0 - £83,040.0 - **Contract:** Permanent contract - **Published:** June 14, 2026 - [View job](https://www.wearedevelopers.com/jobs/ext/341328-infrastructure-engineer-db2) - [Apply](https://uk.indeed.com/viewjob?jk=1c84433d2b2f568c) ## Infrastructure Engineer, Db2 - **Company:** National Westminster Bank - **Location:** Edinburgh, UK (Remote available) - **Contract:** Permanent contract - **Published:** June 14, 2026 - [View job](https://www.wearedevelopers.com/jobs/ext/341238-infrastructure-engineer-db2) - [Apply](https://uk.indeed.com/viewjob?jk=8c794014edd1b987) ## Mainframe Systems Programmer (IMS) - **Company:** Barclays Bank PLC - **Location:** Knutsford, UK - **Salary:** £49,751.0 - **Contract:** Permanent contract - **Published:** August 22, 2026 - [View job](https://www.wearedevelopers.com/jobs/ext/2176053-mainframe-systems-programmer-ims) - [Apply](https://www.adzuna.co.uk/jobs/details/5849514068) ## Mainframe Technical Consultant - Automation - **Company:** BMC Software - **Location:** London, UK (Remote available) - **Salary:** £60,300.0 - £100,500.0 - **Contract:** Permanent contract - **Published:** June 5, 2026 - [View job](https://www.wearedevelopers.com/jobs/ext/329415-mainframe-technical-consultant-automation) - [Apply](https://uk.indeed.com/viewjob?jk=09d269671755f3c3) ## Privileged Access Management Engineer - **Company:** American International Group, Inc. - **Location:** London, UK - **Contract:** Permanent contract - **Published:** June 3, 2026 - [View job](https://www.wearedevelopers.com/jobs/ext/325082-privileged-access-management-engineer) - [Apply](https://uk.indeed.com/viewjob?jk=f9e4a020b77e2824) ## Senior Cobol Architect - **Company:** Alexander Mann Solutions - **Location:** London, UK (Remote available) - **Experience:** Expert - **Contract:** Temporary contract - **Published:** August 20, 2026 - [View job](https://www.wearedevelopers.com/jobs/ext/2140312-senior-cobol-architect) - [Apply](https://www.careerboard.com/pt/en/find-jobs-in-United-Kingdom/-5DE079060D95F0C7FB/) ## Cics Systems Programmer - **Company:** gb Teksystems - **Location:** UK (Remote available) - **Salary:** £110,500.0 - £123,500.0 - **Contract:** Permanent contract - **Published:** August 20, 2026 - [View job](https://www.wearedevelopers.com/jobs/ext/2140475-cics-systems-programmer) - [Apply](https://www.totaljobs.com/job/cics-systems-programmer/teksystems-job107877635) ## GridOS ADMS Solution Architect: Energy Systems & Cloud - **Company:** GE Vernova - **Location:** Edinburgh, UK - **Contract:** Permanent contract - **Published:** May 31, 2026 - [View job](https://www.wearedevelopers.com/jobs/ext/36314-gridos-adms-solution-architect-energy-systems-cloud) - [Apply](https://www.apply4u.co.uk/jobs/x/37779711/) ## System Software Engineer - **Company:** Apple Inc. - **Location:** London, UK - **Contract:** Permanent contract - **Published:** May 29, 2026 - [View job](https://www.wearedevelopers.com/jobs/ext/32990-system-software-engineer) - [Apply](https://uk.indeed.com/viewjob?jk=589567e378c6ced5) ## Linux Engineer - **Company:** Jane Street - **Location:** London, UK - **Contract:** Permanent contract - **Published:** August 17, 2026 - [View job](https://www.wearedevelopers.com/jobs/ext/2095994-linux-engineer) - [Apply](https://www.efinancialcareers.com/jobs-United_Kingdom-London-Linux_Engineer.id24623257) ## Systems Integration Advisor - **Company:** The Borough - **Location:** London, UK - **Experience:** Expert - **Contract:** Permanent contract - **Published:** August 19, 2026 - [View job](https://www.wearedevelopers.com/jobs/ext/2110896-systems-integration-advisor) - [Apply](https://www.apply4u.co.uk/jobs/x/44538187/) ## Senior Software Engineer C Linux Networking - Remote - **Company:** Networking Technology - **Location:** Edinburgh, UK (Remote available) - **Experience:** Expert - **Contract:** Permanent contract - **Published:** August 18, 2026 - [View job](https://www.wearedevelopers.com/jobs/ext/2102814-senior-software-engineer-c-linux-networking-remote) - [Apply](https://www.apply4u.co.uk/jobs/x/44312124/) [Next page](https://www.wearedevelopers.com/jobs?country=UK&page=2&q=z%2Fos) ## Filter by Country - [Austria](https://www.wearedevelopers.com/jobs?country=AT) - [Belgium](https://www.wearedevelopers.com/jobs?country=BE) - [Germany](https://www.wearedevelopers.com/jobs?country=DE) - [Spain](https://www.wearedevelopers.com/jobs?country=ES) - [France](https://www.wearedevelopers.com/jobs?country=FR) - [Italy](https://www.wearedevelopers.com/jobs?country=IT) - [Lithuania](https://www.wearedevelopers.com/jobs?country=LT) - [Netherlands](https://www.wearedevelopers.com/jobs?country=NL) - [Portugal](https://www.wearedevelopers.com/jobs?country=PT) - 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