Big Data Software Engineer

Job Description

Job Req ID:57586

Posting Date:14/04/2026

Function: Data & AI

Location: Belfast, Birmingham, London

Working Style: Hybrid (3 days a week in office, 2 days from anywhere)

About the role

Data is a vital part of our business and with your help, we can improve the services that we provide to our customers through engineering excellence of our data products. You’ll be working on exciting data products which support TV, Broadband, Digital Voice and market leading technologies like Unbreakable Wifi. We deliver these critical services using the latest cloud technologies on AWS and GCP.

When you join us as a Data Engineer Professional, you’ll have the opportunity to be part of our Data Enablement Team where you will help to design, build and support high quality products from our extensive data sources and multi-cloud environment.

As a team we believe in the agile principles of openness, transparency and continuous improvement, which underpin strong relationships with our business stakeholders.

There will be lots of opportunities to explore new technologies, develop new skills, innovate and grow as an engineer which includes opportunities such as cloud certification.

What you’ll be doing

• Contribute to the development and support of scalable data products for our business stakeholders.
• Agile development through story planning, estimation and retrospectives.
• Aid with the continual improvement of our data product solutions, i.e. process improvements / operational monitoring / automation opportunities / security.
• Collaborate with designers, analysts, and other data and software engineers.
• Continual improvements using Development and Operational Support best practices.
• Provide guidance to offshore Development and Operational Support teams.
• Input into solution design and discovery sessions on product backlog items.
• Improve our solutions through automated testing and deployments.

Continual learning through internal and external training

Essential Skills / Experience

• SQL, Python, Java, and/or Scala development experience.
• Hands on Development and/or Operational Support experience in a cloud platform, such as AWS, GCP or Azure.
• Be proactive and lead continuous improvement and innovation activities, in relation to data product support, in a data engineering context.
• Experience in a development and/or support role within a data and/or software development team, testing, deployment, process automation.
• Experience in a story driven agile environment.
• Proactive about continuous improvement and innovation.
• Knowledge of Software engineering best practices.
• Input into software and data product designs, assisting other engineers in creating quality solutions.
• Hands on software development in a story driven agile environment.

Desirable Skills / Experience

• Hands on Development and/or Operational Support experience in an on premise platform, such as Cloudera.
• Development and/or Support of data/software products from inception through to production.
• Experience in software development, testing and deployment in a story driven agile environment.
• Use of Hadoop, GCP or AWS to build Big Data solutions using some of the following technologies: Scala, Java, Spark, Kafka, Kinesis, Kinesis Analytics, BigQuery, Dataflow, BigTable, SQL, Python.
• Knowledge of Infrastructure as Code Toolsets.
• Input into data product designs with other engineers to come up with the best solutions.

• Hands-on experience with Continuous Integration and Deployment Strategies.
• Prior experience using Confluence, JIRA, or other Atlassian tools.
• Software version control using Git or SVN.
• Presentation of technical issues and successes to other members of the team.
• Have a proven ability to learn new technologies and put these into practice.

Our Package

Tailored benefits make a real difference. That’s why we offer a comprehensive range to support your growth, wellbeing, and everyday life.
You can design the package to suit you and your lifestyle. Your core benefits include:

• 10% on target annual bonus
• Access to an online private GP 24/7 for you and your immediate family
• Market-leading paid carers leave with up to 2 weeks off
• Equalized maternity, paternity, and adoption leave – 18 weeks’ full pay and 8 weeks’ half pay
• Discounted EE and BT products, including mobile and broadband
• Market leading Pension scheme – 5% from you and 10% from us
• Holiday purchase scheme

You can select additional benefits, including healthcare, dental, gym memberships and more when you’re ready.
Ready to connect for good and help shape the future? Apply now

BT Group is the UK’s leading communications group and the holding company behind some of the country’s most recognised brands – including BT, EE, Openreach and Plusnet. Our purpose is as simple as it is ambitious: we connect for good. Our customers include consumers, small, medium and large businesses, public sector organisations and other communications providers.

BT Group’s role is about setting direction, unlocking value and creating the conditions for our brands and businesses to thrive.

Having come through the most capital-intensive phase of our fibre investment, our focus now is on what comes next – simplifying how we operate, using technology and AI to work smarter, and organising ourselves to serve customers better and grow sustainably. Group teams shape strategy, policy, brand, capital allocation and transformation, helping the whole organisation perform at its best.

We have a singular culture that unites all our people: we are customer-first challengers, who are committed, clear and connected. These behaviours unite us as one team to deliver for our colleagues, our customers, our stakeholders and the country. Joining BT Group means working at the heart of a business that matters to the UK, with the opportunity to shape decisions, influence outcomes and help set the future course of one of the country’s most important companies.