Mainframe Software Engineer

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

Job summary

A leading banking institution in London seeks a Senior Mainframe Software Engineer to redefine banking technology. You will lead teams, engage with senior stakeholders, and drive modern engineering practices in a hybrid role. Strong experience in COBOL, CICS, and DB2 is essential for this position. Competitive salary and a wide-ranging benefits package are offered.

Benefits

Generous pension contribution of up to 15%

Annual performance-related bonus

Share schemes

30 days holiday

Flexible working options

Qualifications

• Outstanding interpersonal and communications skills to engage with stakeholders.
• Expertise in COBOL, CICS, and DB2.
• Hands-on experience with maintaining mainframe applications.

Responsibilities

• Contribute to defining objectives and continuously improve metrics.
• Act as a subject matter expert in mainframe engineering.
• Work with a diverse team to foster a collaborative culture.

Skills

Outstanding interpersonal skills

Experience in leading mainframe engineering teams

Hands-on Software Engineering background

Expert understanding of COBOL, CICS and DB2

Experience with traditional and modern toolsets

Passionate about modern culture

Growth mindset

Tools

ISPF

IBM Tools

BMC Tools

Endevor

GIT

VSCode

Job description

End Date

Sunday 16 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 Summary

Our Mission -

We're on a mission to build the bank of the future, and we need your help to do it. We're redefining what a bank is from the inside out. Our technology and our culture are changing to craft a true engineering-led organisation.

Become part of our diverse team, and you'll experience a rare opportunity to make a difference to the lives of millions through our brands like Halifax, Bank of Scotland, Lloyds, and Scottish Widows (among others). Our flat teams will encourage and empower you to make decisions, build positive relationships, and deliver a meaningful difference to our customers, colleagues, and communities. Our mentors will nurture your talent and encourage you to further develop yourself and your career.

Job Description

JOB TITLE: Senior Mainframe Software Engineer

SALARY: £81,999 - £91,110

LOCATION(S): London

HOURS: Full-time – 35 hours per week

WORKING PATTERN: Our work style is hybrid, which involves spending at least two days per week, or 40% of our time, at our London office.

About this opportunity

We're on a mission to build the bank of the future, and we need your help to do it. We're redefining what a bank is from the inside out. Our technology and our culture are changing to craft a true engineering-led organisation.

Become part of our diverse team, and you'll experience a rare opportunity to make a difference to the lives of millions through our brands like Halifax, Bank of Scotland, Lloyds, and Scottish Widows (among others).

Our flat teams will encourage and empower you to make decisions, build positive relationships, and deliver a meaningful difference to our customers, colleagues, and communities.

Our mentors will nurture your talent and encourage you to further develop yourself and your career.

About the Customer Data Services (CDS) Lab

We're the team that looks after the customer data for the whole of Lloyds Banking Group. Our mission is to make this data available for the right purpose with the appropriate confidentiality and always ensuring a phenomenal engineering experience, performances, resilience, and integrity.

The systems we support, underpin almost everything we do as Lloyds Banking Group. We maintain these systems with the highest standard, with an ambition to take ownership of the operational support 24/7 using SRE principles.

Why Lloyds Banking Group

We’re on an exciting journey to transform our Group and the way we’re shaping finance for good. We’re focusing on the future, investing in our technologies, workplaces, and colleagues to make our Group a great place for everyone. Including you!

What you’ll need

• Outstanding interpersonal and communications skills with ability to communicate and engage with non-technical and senior stakeholders
• Experience in leading mainframe engineering teams, acting as subject matter expert
• Hands on Software Engineering background with experience in maintaining mission critical mainframe applications
• Experience working with both traditional and modern toolsets (ISPF, IBM & BMC tools, Endevor, GIT, VSCode)
• An expert understanding of COBOL, CICS and DB2
• An excellent understanding of mainframe architecture and a vision for modernising the mainframe environment
• Passionate about driving a modern and inclusive culture
• Able to listen, reflect and respect the views of others as well as being able to communicate your own opinion but you're not strongly tied to it
• A growth mindset, who encourages, mentor and motivates the teams around you
• A desire to exploit LBG's investment in mainframe technology and deliver solutions using modern toolsets and languages
• Ability to contribute to defining objectives to continuously improve and measure metrics

It would be great if you also had

• Experience of java or python programming languages

About working for us

Our ambition is to be the leading UK business for diversity, equity and inclusion supporting our customers, colleagues and communities and we’re committed to creating an environment in which everyone can thrive, learn and develop.

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.

We offer reasonable workplace adjustments for colleagues with disabilities, including flexibility in office attendance, location and working patterns. And, as a Disability Confident Leader, we guarantee interviews for a fair and proportionate number of applicants who meet the minimum criteria for the role with a disability, long-term health or neurodivergent condition through the Disability Confident Scheme.

We provide reasonable adjustments throughout the recruitment process to reduce or remove barriers. Just let us know what you need.

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

• A generous pension contribution of up to 15%
• An annual performance-related bonus
• 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

Key purpose and values

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.