Platform Architect - Mainframe (z/OS)

ZipRecruiter; London; On-site; GBP 80,000 - 120,000; Full time

Job summary

A global technology services provider is seeking a Platform Architect with expertise in mainframe systems to join their UK architecture team. This role involves shaping architecture strategies, leading platform design, and ensuring compliance with security standards. The ideal candidate will have a strong background in mainframe environments and experience in integrating with cloud technologies.

Qualifications

• Experience in large-scale mainframe environments.
• Demonstrated experience in enterprise architecture roles.

Responsibilities

• Define architecture strategies for enterprise mainframe platforms.
• Lead platform design and integration with cloud systems.

Skills

Architecture

Stakeholder Communication

Tools

z/OS

CICS

DB2

MQ

RACF

Job description

Job Description

Platform Architect – Mainframe (z/OS)

Join a Global Leader in Enterprise Infrastructure Services

Our client is a global technology services provider specialising in mission-critical IT infrastructure for some of the world’s most complex and high-profile organisations. We're currently seeking an experienced Platform Architect with deep expertise in mainframe systems to join their UK architecture team.

This is a unique opportunity to work on large-scale infrastructure transformation programmes, helping enterprise clients modernise their legacy environments, improve resilience, and integrate with cloud- technologies.

As a Platform Architect, you'll be responsible for shaping and guiding the architecture of z/OS-based platforms across multiple client engagements. You'll play a senior role in platform strategy, design, and governance, working closely with cross-functional teams to ensure infrastructure is secure, scalable, and aligned to evolving business needs.

Key Responsibilities

• Define end-to-end architecture strategies for enterprise mainframe platforms (z/OS, CICS, DB2, MQ, RACF).
• Lead platform design and integration with distributed/cloud systems using modern APIs and messaging frameworks.
• Act as the technical SME for all things mainframe, providing leadership across engineering and delivery teams.
• Support architectural governance and ensure alignment with compliance, risk, and security standards.
• Collaborate with both internal teams and external clients to translate business requirements into robust infrastructure solutions.

Experience

• Background in large-scale mainframe environments (z/OS, CICS, DB2, RACF, IMS, MQ).
• Demonstrated experience in enterprise architecture or platform leadership roles.
• Proven ability to integrate mainframe platforms with modern cloud/distributed architectures.
• Deep understanding of mainframe performance, availability, security, and resilience.
• Excellent stakeholder communication, both technical and non-technical.

Interested in leading architecture that powers the platforms the world depends on?

Apply now or get in touch with our team for a confidential conversation.