Software Engineer - Mainframe

Join us as a Software Engineer – Mainframe at Barclays, where you will spearhead the evolution of our infrastructure and deployment pipelines, driving innovation and operational excellence. You will harness cutting-edge technology to build and manage robust, scalable and secure infrastructure, ensuring seamless delivery of our digital solutions.

Purpose of the role

To design, develop and improve software, utilising various engineering methodologies, that provides business, platform, and technology capabilities for our customers and colleagues.

Accountabilities

Development and delivery of high-quality software solutions by using industry aligned programming languages, frameworks, and tools. Ensuring that code is scalable, maintainable, and optimized for performance. Cross-functional collaboration with product managers, designers, and other engineers to define software requirements, devise solution strategies, and ensure seamless integration and alignment with business objectives. Collaboration with peers, participate in code reviews, and promote a culture of code quality and knowledge sharing. Stay informed of industry technology trends and innovations and actively contribute to the organization’s technology communities to foster a culture of technical excellence and growth. Adherence to secure coding practices to mitigate vulnerabilities, protect sensitive data, and ensure secure software solutions. Implementation of effective unit testing practices to ensure proper code design, readability, and reliability.

To be successful as a Software Engineer - Mainframe, you should have experience with:

- Strong, proven experience in Mainframe Application Design, Development, and technical leadership - Deep expertise in core mainframe technologies, including COBOL, JCL, IMS / DB/DC, DB2, VSAM, CICS, TWS (scheduling), Stored Procedures, and REXX - Strong understanding of mainframe engineering, including debugging, performance optimization, and change management tooling (e.g., Endeavor, Abend-Aid, File-Aid, DB2 Platinum) - Experience in Mainframe Modernization and API enablement, including z/OS Connect will be preferred. - Demonstrated ability to provide technical oversight, including reviewing and assuring solution and design quality, guiding complex large-scale implementations, and unblocking delivery teams across multiple workstreams. - Strong understanding of performance engineering and production stability considerations.

Some other highly valued skills may include:

- Experience leading or working with mainframe DevOps practices, tool chains, and automated delivery pipelines. - Exposure to automation, Modernization, and next-generation engineering practices within mainframe environments. - Familiarity with DevOps-driven delivery and engineering enablement for mainframe platforms. - Strong banking / financial services domain knowledge.