Join us as a Senior Architect – Finance and play a pivotal role in shaping the future of finance technology at Nationwide Building Society. As part of our Finance and Treasury Value Stream, you’ll be at the heart of designing and delivering technology solutions that enable our Finance function to operate efficiently, accurately, and with agility.
In this role, you’ll define and maintain the target architecture and roadmap for Finance, ensuring that every solution aligns with our strategic objectives and delivers measurable business value. You’ll work closely with finance product owners, engineers, and delivery leads to translate business needs into innovative, scalable, and secure technology designs. Your expertise will help us modernise our platforms, optimise processes, and support millions of members with reliable financial services.
Beyond solution design, you’ll act as a trusted advisor and thought leader, influencing technology strategy across the organisation. You’ll lead proofs of concept to explore emerging technologies, assess their potential, and guide decision-making. As a people leader, you’ll coach and mentor other architects, fostering a culture of collaboration, continuous learning, and technical excellence within the team.
This is a high-impact role where you’ll have the opportunity to shape how Nationwide manages its financial systems, from core ledger platforms to reporting and analytics capabilities. You’ll ensure our architecture supports regulatory compliance, operational resilience, and future growth, while embracing cloud technologies and modern engineering practices.
We’re looking for someone who combines deep technical knowledge with stakeholder engagement skills. You’ll need to be comfortable operating at both strategic and hands-on levels, influencing senior leaders while working closely with delivery teams. Experience in finance systems, Enterprise Resource Planning (ERP) platforms, or cloud-based solutions will be highly valuable.
At Nationwide, we value diversity, innovation, and collaboration. We’re committed to creating an inclusive environment where your ideas can make a real difference. If you’re passionate about technology and want to help shape the future of finance for one of the UK’s largest building societies, this is your chance to make an impact.
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. Whilst these locations are where we are primarily looking to fill the role, if you’re an internal applicant based in a different location we would welcome your application and if successful, your hiring manager will provide further details on how this could work for this specific role. 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.
ResponsibilitiesWhat you’ll be doing
A typical day will involve working closely with Finance Product Owners to align technology solutions with business needs. You’ll spend time defining architecture standards, reviewing designs, and ensuring solutions are practical and deliverable. You’ll lead proofs of concept to validate ideas before full-scale delivery and provide guidance to other architects in the team. Collaboration is key, so expect to work with engineers, testers, and delivery leads to bring innovative solutions to life.
About you
As a minimum, you’ll have experience with:
Enterprise Architecture & Roadmap Design – Ability to define target architectures, principles, and technology roadmaps aligned with business strategy
Finance Systems Expertise – Experience of finance platforms including general ledger, sub-ledger, enterprise resource planning (ERP), and financial reporting systems
Cloud Architecture & Integration – Experience designing solutions on cloud platforms (e.g., AWS, Azure, Oracle Cloud) and integrating with on-premises systems
Stakeholder Engagement & Communication – Skilled at influencing senior leaders, collaborating with Product Owners, Engineers, and Delivery Leads
Strategic Thinking & Problem-Solving – Ability to see the bigger picture, anticipate future needs, and develop innovative solutions to complex challenges
Leadership & Coaching – Proven experience mentoring architects and engineers, fostering technical excellence and innovation
Adaptability & Change Leadership – Comfortable driving transformation, managing ambiguity, and promoting modern engineering practices
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.
QualificationsThe extras you’ll get
There are all sorts of employee benefits available at Nationwide, including:
30 days holiday, pro rata
Access to private medical insurance
A highly competitive pension to help you build a strong foundation for retirement
Access to an annual performance related bonus
Training and development to help you progress your career
A great selection of additional benefits through our salary sacrifice scheme
Life assurance to provide peace of mind for you and your loved ones in the event of your death
Wellhub – access to a range of free and paid options for health and wellness
Up to 2 days of paid volunteering a year
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.
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.
Please note that should you be successful in securing this role, the job title on our internal systems will be Senior Enterprise Architect Strategy.
