Senior Software Engineer - Mainframe

lloyds banking group; City Of London; Hybrid; GBP 81,000 - 123,000; Full time

Job summary

A leading banking institution is seeking a Senior Software Engineer - Mainframe to join their Domestic Payments Lab. This role involves delivering innovative payment solutions and working closely with customers and internal teams. Candidates should have strong experience with IBM z/OS, Cobol, and Agile practices. The position offers a competitive salary, hybrid working, and a generous benefits package.

Benefits

Generous pension contribution

Annual bonus award

Share schemes including free shares

30 days' holiday

Wellbeing initiatives

Qualifications

• Experience in software development lifecycle, preferably Agile.
• Experience in the Banking domain, especially Faster Payments and BACS.
• Strong skills in software development practices and technical guidance.

Responsibilities

• Deliver end-to-end engineering Payment solutions.
• Engage with customers and internal teams for effective IT strategies.
• Ensure software aligns with engineering best practices.

Skills

IBM z/OS

JCL

TSO

Cobol

Connect:Direct

Java

REST APIs

Endevor

GitHub

Job description

End Date

Tuesday 11 November 2025

Salary Range

£81,999 - £122,999

We support flexible working – click here for more information on flexible working options

Flexible Working Options

Hybrid Working, Job Share

Job Description

JOB TITLE: Senior Software Engineer - Mainframe

SALARY: £78,849 - £87,610

LOCATION(S): London

HOURS: Full time

WORKING PATTERN: Hybrid, 40% (or two days) in the above office location

About this opportunity

Are you an experienced Software Engineer who wants to join an Award Winning Lab and are passionate about engineering and Group Transformation?

Our goal in the Domestic Payments Lab Value Stream is to support customer welfare through secure payments and fraud prevention.

Support Domestic Payments Lab Business Areas with compliant, fast, secure transaction services to combat threats.

As a Senior Software Mainframe Engineer is tasked with delivering end-to-end engineering Payment solutions for our customers. Your involvement is essential to our strategy of simplifying, modernizing, and de-risking the Payments landscape, and ultimately generating value for customers and shareholders. Software Engineers engage with a variety of customers, external partners, and our internal development and testing teams to help achieve IT strategies effectively.

What we need from you

• Experience working with the following: IBM z/OS, JCL, TSO, Cobol, Connect:Direct, Java, REST API’s.

• Source code management and managing change with experience of Endevor and GitHub.

• Engineering practices, continuous development, integration, testing and production support.

• Experience in the Banking domain, in particular Faster Payments and BACS.

• Experience of Technical Guidance and Mentoring.

Here’s how you can make a difference

• Having strong skills in software development lifecycle is essential (preferably the Agile Framework) and should be demonstrable through your experience to date.

• Ensure software is built in a way that is consistent with the frameworks, patterns and practices that exist across the wider engineering community.

• Contribute to setting the strategic direction for how applications are developed within the team and contribute through all stages of development from initiation through to live implementation.

• Apply industry innovation and share knowledge to solve complex business problems without precedent, ensuring implementation of solutions when needed.

• Also ensure applications are fast, secure and work across all manner of devices.

About working for us

Our focus is to ensure we're inclusive every day, building an organisation that reflects modern society and celebrates diversity in all its forms.

We want our people to feel that they belong and can be their best, regardless of background, identity or culture.

We were one of the first major organisations to set goals on diversity in senior roles, create a menopause health package, and a dedicated Working with Cancer initiative.

And it’s why we especially welcome applications from under‑represented groups.

We’re disability confident. So, if you’d like reasonable adjustments to be made to our recruitment processes, just let us know.

We also offer a wide-ranging benefits package, which includes:

• A generous pension contribution of up to 15%

• An annual bonus award, subject to Group performance

• Share schemes including free shares

• Benefits you can adapt to your lifestyle, such as discounted shopping

• 30 days’ holiday, with bank holidays on top

• A range of wellbeing initiatives and generous parental leave policies

Want to do amazing work, that’s interesting and makes a difference to millions of people? Join our journey.

About Lloyds Banking Group

At Lloyds Banking Group, we're driven by a clear purpose; to help Britain prosper. Across the Group, our colleagues are focused on making a difference to customers, businesses and communities. With us you'll have a key role to play in shaping the financial services of the future, whilst the scale and reach of our Group means you'll have many opportunities to learn, grow and develop.

We keep your data safe. So, we'll only ever ask you to provide confidential or sensitive information once you have formally been invited along to an interview or accepted a verbal offer to join us which is when we run our background checks. We'll always explain what we need and why, with any request coming from a trusted Lloyds Banking Group person.

We're focused on creating a values‑led culture and are committed to building a workforce which reflects the diversity of the customers and communities we serve. Together we’re building a truly inclusive workplace where all of our colleagues have the opportunity to make a real difference.