1 to 25 of 34 Permanent Mainframe Jobs in London

Mainframe Architect Salary: Upwards from £120,000 per annum + performance-related bonus Location : London-based (hybrid), with flexibility for occasional travel to client sites. The Role We are seeking an experienced Mainframe Architect to lead the design, implementation, and modernisation of mission-critical mainframe solutions for high-profile clients. … This role is pivotal in bridging business requirements with cutting-edge technology, ensuring seamless integration, scalability, and performance across complex enterprise environments. As a Mainframe Architect , you will be responsible for crafting tailored mainframe database architectures, working closely with stakeholders to define solutions that align with both client needs and … expertise and the ability to communicate complex solutions to technical and non-technical stakeholders alike. Key Responsibilities Define, design, and implement high-performance, scalable mainframe database solutions . Lead modernization initiatives , integrating mainframe databases into hybrid cloud environments. Collaborate with clients, governance teams, delivery teams, and external vendors to ensure More ❯

Mainframe Architect Salary: Upwards from £120,000 per annum + performance-related bonus Location : London-based (hybrid), with flexibility for occasional travel to client sites. The Role We are seeking an experienced Mainframe Architect to lead the design, implementation, and modernisation of mission-critical mainframe solutions for high-profile clients. … This role is pivotal in bridging business requirements with cutting-edge technology, ensuring seamless integration, scalability, and performance across complex enterprise environments. As a Mainframe Architect , you will be responsible for crafting tailored mainframe database architectures, working closely with stakeholders to define solutions that align with both client needs and … expertise and the ability to communicate complex solutions to technical and non-technical stakeholders alike. Key Responsibilities Define, design, and implement high-performance, scalable mainframe database solutions . Lead modernization initiatives , integrating mainframe databases into hybrid cloud environments. Collaborate with clients, governance teams, delivery teams, and external vendors to ensure More ❯

ensuring that feeds out of the system can provide data to downstream analytical and financial data consumers. Understanding of legacy data flows through the mainframe parts of the system being replaced. Expertise in rebuilding the Customer Digital Experience. Ability to engage with engineering teams through the lifecycle and provide technical More ❯

ensuring that feeds out of the system can provide data to downstream analytical and financial data consumers. Understanding of legacy data flows through the mainframe parts of the system being replaced. Expertise in rebuilding the Customer Digital Experience. Ability to engage with engineering teams through the lifecycle and provide technical More ❯

downstream financial and analytical systems Key Skills 15+ years in solution architecture Strong background in applications, APIs, and data pipelines Experience with legacy systems, mainframe data flows, and modernisation Confident engaging with both technical and senior business stakeholders Clear communicator with strong consulting and problem-solving skills Apply now to More ❯

downstream financial and analytical systems Key Skills 15+ years in solution architecture Strong background in applications, APIs, and data pipelines Experience with legacy systems, mainframe data flows, and modernisation Confident engaging with both technical and senior business stakeholders Clear communicator with strong consulting and problem-solving skills Apply now to More ❯

provide technical support for our client's environment, working on both Linux and Windows servers. A nice to have, is database experience, ideally on mainframe, but not essential. What does your day look like? Represent our client as the first point of contact Help customers by demonstrating your expertise in More ❯

provide technical support for our client's environment, working on both Linux and Windows servers. A nice to have, is database experience, ideally on mainframe, but not essential. What does your day look like? Represent our client as the first point of contact Help customers by demonstrating your expertise in More ❯

provide technical support for our client's environment, working on both Linux and Windows servers. A nice to have, is database experience, ideally on mainframe, but not essential. What does your day look like? Represent our client as the first point of contact Help customers by demonstrating your expertise in More ❯

provide technical support for our client's environment, working on both Linux and Windows servers. A nice to have, is database experience, ideally on mainframe, but not essential. What does your day look like? Represent our client as the first point of contact Help customers by demonstrating your expertise in More ❯

provide technical support for our client's environment, working on both Linux and Windows servers. A nice to have, is database experience, ideally on mainframe, but not essential. What does your day look like? Represent our client as the first point of contact Help customers by demonstrating your expertise in More ❯

provide technical support for our client's environment, working on both Linux and Windows servers. A nice to have, is database experience, ideally on mainframe, but not essential. What does your day look like? Represent our client as the first point of contact Help customers by demonstrating your expertise in More ❯

provide technical support for our client's environment, working on both Linux and Windows servers. A nice to have, is database experience, ideally on mainframe, but not essential. What does your day look like? Represent our client as the first point of contact Help customers by demonstrating your expertise in More ❯

provide technical support for our client's environment, working on both Linux and Windows servers. A nice to have, is database experience, ideally on mainframe, but not essential. What does your day look like? Represent our client as the first point of contact Help customers by demonstrating your expertise in More ❯

provide technical support for our client's environment, working on both Linux and Windows servers. A nice to have, is database experience, ideally on mainframe, but not essential. What does your day look like? Represent our client as the first point of contact Help customers by demonstrating your expertise in More ❯

provide technical support for our client's environment, working on both Linux and Windows servers. A nice to have, is database experience, ideally on mainframe, but not essential. What does your day look like? Represent our client as the first point of contact Help customers by demonstrating your expertise in More ❯

provide technical support for our client's environment, working on both Linux and Windows servers. A nice to have, is database experience, ideally on mainframe, but not essential. What does your day look like? Represent our client as the first point of contact Help customers by demonstrating your expertise in More ❯

provide technical support for our client's environment, working on both Linux and Windows servers. A nice to have, is database experience, ideally on mainframe, but not essential. What does your day look like? Represent our client as the first point of contact Help customers by demonstrating your expertise in More ❯

provide technical support for our client's environment, working on both Linux and Windows servers. A nice to have, is database experience, ideally on mainframe, but not essential. What does your day look like? Represent our client as the first point of contact Help customers by demonstrating your expertise in More ❯

Processing Environment. Extensive development experience using 64-bit Assembler and 31-bit Assembler programming languages. Experience with REXX, Python is a plus Experience with Mainframe environment (TSO/ISPF, JCL etc) , IBM Mainframe z/OS internals (JES2, SMS, HSM); z/OS communications TCP/IP and VTAM and … IBM Utilities (IEBGENER, etc.) Working knowledge of mainframe debugging tools : IPCS,XDC, FILEAID Coding experience in a multitasking, reentrant and/or sysplex environment Understanding of zLinux and Unix System Services. Understanding IBM z/OS operating system ,z/OS Internals Experience with code merging activities using source code More ❯

Processing Environment. Extensive development experience using 64-bit Assembler and 31-bit Assembler programming languages. Experience with REXX, Python is a plus Experience with Mainframe environment (TSO/ISPF, JCL etc) , IBM Mainframe z/OS internals (JES2, SMS, HSM); z/OS communications TCP/IP and VTAM and … IBM Utilities (IEBGENER, etc.) Working knowledge of mainframe debugging tools : IPCS,XDC, FILEAID Coding experience in a multitasking, reentrant and/or sysplex environment Understanding of zLinux and Unix System Services. Understanding IBM z/OS operating system ,z/OS Internals Experience with code merging activities using source code More ❯

Processing Environment. Extensive development experience using 64-bit Assembler and 31-bit Assembler programming languages. Experience with REXX, Python is a plus Experience with Mainframe environment (TSO/ISPF, JCL etc) , IBM Mainframe z/OS internals (JES2, SMS, HSM); z/OS communications TCP/IP and VTAM and … IBM Utilities (IEBGENER, etc.) Working knowledge of mainframe debugging tools : IPCS,XDC, FILEAID Coding experience in a multitasking, reentrant and/or sysplex environment Understanding of zLinux and Unix System Services. Understanding IBM z/OS operating system ,z/OS Internals Experience with code merging activities using source code More ❯

Director of Mainframe Services | Global Consultancy | AI & Modernisation A world-leading consultancy on a mission to reinvent legacy technology. They’re hiring a Director of Mainframe Services to lead global client engagements focused on mainframe modernisation , leveraging AI, cloud , and automation . This is a high-impact, strategic leadership role … ideal for experienced consulting professionals ready to shape the future of enterprise technology. 🔍 What You’ll Be Doing Leading and expanding global Mainframe Services practice. Driving AI-led mainframe modernisation for enterprise clients Designing cloud-first strategies to migrate, integrate, or transform legacy workloads. Building executive-level relationships and delivering … consulting background (Director/Senior Manager level) at a tech or strategy consultancy. Deep expertise in z/OS , COBOL, JCL, IMS, DB2, and mainframe ecosystems. Strong knowledge of cloud platforms (AWS, Azure, GCP) and migration strategy. Proven ability to lead large-scale transformation programmes and cross-functional teams. 🌍 Why More ❯

Director of Mainframe Services | Global Consultancy | AI & Modernisation A world-leading consultancy on a mission to reinvent legacy technology. They’re hiring a Director of Mainframe Services to lead global client engagements focused on mainframe modernisation , leveraging AI, cloud , and automation . This is a high-impact, strategic leadership role … ideal for experienced consulting professionals ready to shape the future of enterprise technology. 🔍 What You’ll Be Doing Leading and expanding global Mainframe Services practice. Driving AI-led mainframe modernisation for enterprise clients Designing cloud-first strategies to migrate, integrate, or transform legacy workloads. Building executive-level relationships and delivering … consulting background (Director/Senior Manager level) at a tech or strategy consultancy. Deep expertise in z/OS , COBOL, JCL, IMS, DB2, and mainframe ecosystems. Strong knowledge of cloud platforms (AWS, Azure, GCP) and migration strategy. Proven ability to lead large-scale transformation programmes and cross-functional teams. 🌍 Why More ❯

of selling, leading and executing complex projects in a multi-disciplinary team. Strong ability to build and commercialize relationships with senior executives. Experience within Mainframe, Data & AI, Cloud and Cyber. Prior consulting experience in the Insurance sector desirable. Consulting Partner Key Details Salary up to £190k. Performance Bonus. Flexible hybrid More ❯