Ab Initio Developer

United States Digital Space LLC; Greater London; On-site; GBP 68,000 - 83,000; Full time

Benefits offered by this job

25 days holiday

Private medical insurance

Pension plan

Annual performance bonus

Training and development

Salary sacrifice options

Life assurance

Wellhub health & wellness resources

Volunteer days

Job summary

Nationwide is seeking an Ab Initio Developer to design, build and support data integration solutions across our enterprise data pipelines. The role focuses on Ab Initio Continuous Flow and Batch Graphs, with emphasis on reliable ETL workflows and data quality.

You'll work with Kafka and relational databases, participate in testing, deployment and production support, and enjoy flexible hybrid working across the UK with periodic site attendance.

Qualifications

• Experience in Ab Initio development within enterprise data pipelines.
• Hands-on experience developing or supporting Ab Initio Continuous Flow Graphs and/or Batch Graphs.
• Exposure to Kafka for data ingestion or messaging.
• Strong SQL skills and experience with relational databases; basic Unix/Linux scripting.

Responsibilities

• Develop and support Ab Initio Continuous Flow and Batch Graphs; build and maintain data integration workflows and ETL processes.
• Work with Kafka and database systems for data ingestion, processing, testing, deployment and production support.

Skills

Ab Initio development

Batch & CF Graphs

Kafka data pipelines

SQL & relational DBs

Unix/Linux scripting

Tools

Ab Initio GDE

EME

Conduct IT

Control Center

Kafka

Job description

LocationLondon / Greater LondonOther LocationsSwindon / Wiltshire

London / Greater London

Northampton / Northamptonshire

Bournemouth / Dorset

Dunfermline / Fife Region

Sheffield

Wakefield / West Yorkshire

Wakefield / West Yorkshire

Wakefield

Belfast / Antrim

Birmingham / West Midlands

Cardiff

Chester

Glasgow

Glasgow / Glasgow City

Glasgow

Maidstone

Manchester

Manchester

Norwich / Norfolk

Worthing

Edinburgh

Edinburgh

Newcastle

LeedsSalaryCirca £75,000ContractPermanent (Full Time )Reference4276Closing Date20 August 2026Job description-------------------

We are looking for an Ab Initio Developer with hands‑on experience in developing and supporting data integration solutions using Ab Initio Continuous Flow Graphs and/or Batch Graphs. The candidate should have experience working with enterprise data pipelines, databases and Kafka‑based integrations.

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 role, you'll be based at your nearest regional office or hub. We value time spent together to connect with colleagues for collaboration so there will be a regular requirement to attend our Edinburgh site approximately once per quarter. If you are based at an office location, you'll be expected to meet our hybrid working requirement of at least two days a week, or 40% of your working time if part‑time, in the office. If your application is successful, your hiring manager will provide further details on how this works.

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

This is a technical hands on role where you will be responsible for developing and supporting Ab Initio Continuous Flow and Batch Graphs whilst building and maintaining data integration workflows and ETL processes.

You will work with Kafka and database systems for data ingestion and processing, participate in testing, deployment and production support activities whilst monitoring data pipelines and resolve data quality or processing issues.

About you

As a minimum requirement, you’ll have:

• Extensive experience in Ab Initio development
• Hands‑on experience developing or supporting Ab Initio Continuous Flow Graphs and/or Batch Graphs
• Working knowledge of Ab Initio GDE, EME, Conduct IT and Control Center
• Experience building and maintaining ETL/data integration workflows
• Exposure to Kafka for data ingestion or messaging
• Experience working with relational databases and writing SQL queries
• Basic Unix/Linux scripting knowledge

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:

• 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.

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

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 Engineer – E2.*