5 of 5 Mainframe Architect Jobs in London

Mainframe Architect London based Role Overview The Mainframe Architect plays a critical leadership role, bridging diverse stakeholders across clients, governance teams, project executives, delivery teams, and external vendors. From project inception through completion, the Mainframe Architect ensures the delivery of tailored, on-time, and … Influence, design, and deliver solutions that drive significant client impact. Engage in ongoing learning and certifications to maintain technical leadership in evolving cloud and mainframe environments. Required Skills and Experience 15+ years of experience with mainframe database technologies such as IBM DB2, IBM IMS Database, Cincom Supra, Software … both technical and non-technical audiences. In-depth knowledge of database performance tuning, capacity management, high availability options , and modernization strategies. Proficient with core mainframe subsystems and database query components including z/OS, JCL, JES, RACF/ACF2, CICS, COBOL, PL/1, SQL, and Natural . Preferred More ❯

A global leader in mission-critical IT infrastructure services is seeking an experienced and innovative Mainframe Architect. This organization specializes in designing, managing, and modernizing enterprise-grade technology environments across industries, helping clients transform legacy systems and accelerate cloud adoption. Position Overview The Mainframe Architect plays a … pivotal role in delivering end-to-end technical solutions for complex enterprise environments. Acting as the bridge between stakeholders and delivery teams, the architect guides the full project lifecycle—from strategic planning to technical execution—ensuring solutions are delivered on time, within budget, and aligned with client objectives. In … this role, the architect leads engagements with enterprise clients, gathering business requirements, defining solution architectures, and driving the modernization of mainframe systems. The position also involves mentoring teams, collaborating with multi-disciplinary experts, and managing integration with cloud platforms and modern technologies. Key Responsibilities Serve as the subject More ❯

A global leader in mission-critical IT infrastructure services is seeking an experienced and innovative Mainframe Architect. This organization specializes in designing, managing, and modernizing enterprise-grade technology environments across industries, helping clients transform legacy systems and accelerate cloud adoption. Position Overview The Mainframe Architect plays a … pivotal role in delivering end-to-end technical solutions for complex enterprise environments. Acting as the bridge between stakeholders and delivery teams, the architect guides the full project lifecycle—from strategic planning to technical execution—ensuring solutions are delivered on time, within budget, and aligned with client objectives. In … this role, the architect leads engagements with enterprise clients, gathering business requirements, defining solution architectures, and driving the modernization of mainframe systems. The position also involves mentoring teams, collaborating with multi-disciplinary experts, and managing integration with cloud platforms and modern technologies. Key Responsibilities Serve as the subject More ❯

Contract Mainframe Solution Architect 📍 UK-Based | Hybrid/Remote ⏳ 6-Month Contract (Outside IR35) 💰 Competitive Daily Rate We are seeking an experienced Mainframe Solution Architect for a contract opportunity with a leading organisation. This role is ideal for a generalist with broad expertise across z/… OS, CICS, DB2, IMS, and mainframe modernisation . You’ll be responsible for designing and optimising mainframe architectures , supporting cloud migrations, API integrations, and automation initiatives . Key Responsibilities: ✅ Design and implement scalable, secure, and high-performance mainframe solutions ✅ Define architecture roadmaps and ensure alignment with IT … and business strategies ✅ Lead mainframe modernisation , including cloud migration, API enablement, and DevOps adoption ✅ Optimise z/OS, CICS, COBOL, DB2, MQ, IMS , and related technologies ✅ Provide technical leadership in integration, automation, and performance tuning ✅ Collaborate with enterprise architects, engineers, and key stakeholders Required Skills & Experience: ✔ Proven experience as More ❯

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-native technologies. As a Platform Architect, you'll be … 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 More ❯