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Nationwide

E3 Engineer - Data and AI Engineering

London
Posted about 17 hours ago
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AI/ML Engineer at Nationwide

As an AI/ML Engineer within the AI Centre of Excellence (CoE) team, you will be at the cutting edge of merging advanced AI techniques with Nationwide’s distinctive data assets to optimise business decisions and automate processes. This role offers the chance to expand the frontiers of AI applications in financial services by leveraging the latest innovations in Natural Language Processing and statistical machine learning.

You will be instrumental in creating products that enhance efficiency, aid experts in prioritising tasks and improve decision-making. Our growing suite of AI-powered products and services presents substantial opportunities for the reuse of foundational components through thoughtfully designed libraries and services that can be applied team-wide. This position uniquely blends scientific research with software engineering, requiring a comprehensive understanding of both domains. You will have the opportunity to work on a variety of projects spanning across Machine learning and Generative AI.

Responsibilities

What you’ll be doing

  • Developing highly scalable classifiers and tools leveraging machine learning, time series predictive methods and deep learning models whilst collaborating with software engineers and data engineers to deploy machine learning models and Generative AI applications into production environments using ML workflows.
  • Creating and delivering reusable technical assets that help to accelerate the adoption and interaction with customers directly. This will allow them to understand the problem, aid them in the implementation of AI solutions and deliver briefings to customers in order to guide them on adoption patterns and paths for AI.

About You

The minimum requirements for this role are:

  • Experience in delivering either production ready AI application or Research and development of Gen AI and/or ML
  • Proven knowledge of ML & AI and hands-on experience of building applications with large foundation models
  • Solid understanding of fundamentals of statistics, optimisation and ML theory, as well as familiarity with popular deep learning architectures (transformers, autoencoders, VAE, etc.)
  • A strong track record of developing high quality, production code in Python
  • Experience in artificial intelligence (XAI) for ML models and metrics for assessing fairness, transparency, and interpretability in the complex AI models.
  • Expert understanding of prompt engineering approaches, query retrieval strategies, and other relevant AI application components
  • An understanding of cloud technical environments such as Azure or AWS
  • Proven problem-solving skills and innovative thinking in complex scenarios

Reasons to use Rodeo

I’m in my final year doing Economics and I don’t know whether to apply for grad schemes now or do a masters first. What do you think?

Honest answer — it depends on where you want to end up. A lot of top grad schemes (Big 4, civil service, banking) don’t need a masters. Let’s look at the ones you’d be competitive for now, and we can decide if a masters actually adds anything.

Also worth knowing: most autumn 2026 applications are open now. Timing matters more than you think.

Start with a chat, not a search bar

Grad scheme, placement, apprenticeship? Not sure what you want yet — that's fine. Your agent talks it through with you and turns "I have no idea" into a shortlist.

P

Graduate Consultant — 2026 Scheme

PwC·London, UK
£35,000/yr

Why you're a good match

Strong

Your economics background and your summer at a regional bank line up with what PwC looks for on the consulting scheme. Applications close in four weeks.

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It searches the market for you

Every day your agent scans the market matching roles against what actually matters to you, not just keywords on a CV.

Why you're a good match

You’ve got the grades and the economics background, and your bank internship is exactly the experience this scheme looks for. Apply soon — deadlines close within the month.

See breakdown
Strong

Experience fit

Your summer at the bank plus your econometrics coursework map directly to the day-one responsibilities on this scheme — client modelling, market briefings, and deal support.

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Strong

Only hits

No noise. No "maybe this fits." Just roles with a clear explanation of why they're right — and where to focus when applying.

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.

Qualifications

The extras you’ll get

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

  • 25 days holiday, pro rata
  • 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.

Get help with your application

Your very own career expert that helps elevate your application to the next level.

Get help applying for this job

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.

Keeping your data and personal information confidential is important to us. To find out more about how we use and process your data, please read our Privacy policy [https://nationwide-jobs.co.uk/privacy].

If you want to find out more about using AI in our recruitment process, please read more here [https://nationwide-jobs.co.uk/help-and-support].

Disability Confident

We’re not just guided by data, we’re driven by the real experiences of our people. We’re a Disability Confident Level 3 Leader, the highest level.

That’s why we’re constantly evolving our policies and practices to make sure everyone feels genuinely supported, valued, and empowered to champion inclusion. Whatever your needs, we’re here to support you. If you need any additional support throughout your application journey, email our team at Recruitment Support [Recruitment.Support@nationwide-jobs.co.uk].

Apply safely with Nationwide

Recruitment scams can look convincing, so take a moment to check the role is listed on our official careers site and read our guidance on Don’t be conned by a job scam. [https://www.nationwide.co.uk/news-and-stories/job-scams/]

Please note that should you be successful in securing this role, the job title on our internal systems will be EN03 - Engineer E3.

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Location

London, UK

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