EN03 Java Engineer

We are seeking an E3 Java Engineer with proven experience in service integration design and development within the enterprise middleware domain. In this role, you will contribute to enhancing our member experience by driving technical excellence and promoting best practices across our IT landscape. 

We are happy to consider flexible working approaches to help you perform at your best. 

At Nationwide we offer hybrid working wherever possible. More rewarding relationships are supported through our hybrid approach, bringing colleagues together across our UK wide estate, whilst also supporting generous access to home working. We value our time in the office to solve problems, to learn, and to feel connected.

For this job you'll spend at least two days per week, or if part time you'll spend 40% of your working time, based at either our Swindon or London office. If your application is successful, your hiring manager will provide further details on how this works. You can also find out more about our approach to hybrid working here.

If we receive a high volume of relevant applications, we may close the advert earlier than the advertised date, so please apply as soon as you can.

What you’ll be doing

• As an E3 Java Engineer within our Strategic Integration Systems team, you will serve as a key technical leader in our Integration Banking domain. Leveraging your strong design and development expertise, you’ll architect and deliver robust solutions that will power our consumer-facing channels well into the future. 

• You’ll take end-to-end ownership of your platform domain—leading by example through development, deployment, and continuous improvement. Collaborating closely with internal stakeholders, project managers, designers and other technical leads, you’ll help align efforts and drive cohesive delivery. 

• You’re already adept at managing multiple projects, navigating complexity and thriving in collaborative environments. You’ll also play a mentorship role, sharing your knowledge with both in-house and partner teams. Your practical experience and strategic insight will help shape the capabilities of a high-performing technology organization. 

• In addition, you’ll act as a delegate for the Lead Engineer when needed, representing the Chief Operating Office across the wider organization to ensure our Technology Strategy is executed with speed and precision. 

• We’ll empower you with the tools and flexibility to work your way, ensure your voice is heard, and support your growth—both technically and commercially. Our clear and proven career pathways reflect our commitment to continuous development, challenging even our most skilled engineers to reach new heights.

About you

The minimum requirements for the role are:

• Experience of working within a back office domain that covers at least one of the following business areas- Banking, Lending, Payments, Finance. 

• Hands-on experience with the design, deployment, and management of Istio Service Mesh solutions using Infrastructure as Code (IaC), with a strong understanding of hybrid cloud and on-premises environments. 

• Accomplished in multiple programming languages, particularly Java and Spring Boot, with a solid foundation in object-oriented programming. 

• Proven experience in leading teams while actively contributing to the delivery of team objectives and outcomes. 

• Deep expertise in designing and developing high-performance, resilient, scalable, and secure middleware systems. 

• Broad development experience across diverse platforms and tools, including Kubernetes, Harness, and Helm, with in-depth knowledge of TLS, certificates, JWTs, OAuth, and OIDC authentication flows. 

• Strong background in integrating systems across a wide range of technologies, including Microsoft, IBM, SAP, Unisys, and cloud-based services. 

• Excellent leadership capabilities, with a proven track record of engaging stakeholders across disciplines and levels through strong communication and influencing skills.

Our customer first behaviours put customers and members at the heart of how we work together. They are the set of behaviours that every colleague needs to display, in every role: 

• Feel what customers feel - We step into our customers’ shoes, using their feedback and insights to empathise with them and to understand their needs, so that every decision we make starts and finishes with our customers in mind

• Say it straight - We are brave in speaking out and saying what we think – we’re honest and direct with good intent, openly sharing diverse perspectives to reach the best conclusions and using language everyone can understand

• Push for better - We don’t settle for mediocrity, we challenge the status quo, taking responsibility for continuous improvement and personal development.

• Get it done - We prioritise what will have the greatest impact, we are decisive, and we take accountability for delivering brilliant customer outcomes.

You can strengthen your application by showing how our customer first behaviours resonate with you, and where you may have already demonstrated these.


 

The extras you’ll get

There are all sorts of employee benefits available at Nationwide, including:

• A personal pension – if you put in 7% of your salary, we’ll top up by a further 16%

• Up to 2 days of paid volunteering a year

• Life assurance worth 8x your salary

• A great selection of additional benefits through our salary sacrifice scheme

• Wellhub – Access to a range of free and paid options for health and wellness.

• Access to an annual performance related bonus

• Access to training to help you develop and progress your career

• 25 days holiday, pro rata

What to do next

If this role is for you, please click the ‘Apply Now’ button. You’ll need to attach your up-to-date CV and answer a few quick questions for us. 

We respond to everyone, so we will be in contact shortly after the closing date to let you know the outcome of your application. 

Banking – but fairer, more rewarding, and for the good of society

We forge our own path at Nationwide.

As a mutual, we’re owned by our members - those customers who bank, save or have a mortgage with us. We challenge the financial sector status quo. We don’t see customers as the engine of our own profit. We share our profits with them and put their needs first. Always there when they need us. Supporting them and their lives.

If you’re inspired by fairer finances, passionate about making a meaningful impact, and truly care about our customers, you’re one of us.

At Nationwide, you are challenged to grow and rewarded for doing so. Valued. Recognised. Inspired to be your best. As a community we want our working lives to count. As a team, we celebrate what we achieve. As a standard-setter, we work for the good of customers, communities, and broader society.

We are Purpose-driven. Uncompromisingly Customer. Unstoppably Nationwide.