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Data Engineering Specialist

Job Req ID:  50632
Posting Date:  11 Sept 2025
Function:  Security
Unit:  Business
Location: 

Cheltenham, Cheltenham, United Kingdom

Salary:  Competitive Salary + Benefits

Recruiter: Krystle James

Hiring Manager: Keith Comley

Career Grade: D

Internal Closing Date: 23/09/25

 

Security isn’t always the first thing that comes to mind when you think of BT, but when it comes to keeping everyone safely connected, We Are The Protectors. We deal with thousands of cyber-attacks every day, so that millions of people can safely go about their daily lives and run their businesses.   We deliver vital work at scale, with real breadth and impact. We connect for good.
You'll be joining a specialist security team that is a trusted partner to governments worldwide, protecting critical national infrastructure and committed to the safety and security of our nation and global communities. Our mission focused work is innovative, inspiring and technologically challenging in a way that makes every day different and stimulating. We provide the opportunity to work on rare projects, with exciting tools and brilliant people. Everyone has access to unparalleled professional and personal development opportunities and your contribution is always valued.

Why this job matters

The Data Engineering Specialist executes a range of workstreams in building and implementing processes to capture, manage, store and utilise structured and unstructured data from internal and external sources, turning business needs into the data that supports the BT Group's data strategies.

 

This job role can be based in Cheltenham or Manchester. Onsite (5 days office based). Monday-Friday 37.5 hours per week. You will need to be eligible to obtain DV Security Clearance before starting this role. You will need to have lived in the UK for 10+ years to be eligible.

What you’ll be doing

 

  • Leading Areas of Capability Development  and/or DevOps. 
  • Understanding Structured and Unstructured Data. 
  • Providing System Design, Documentation and Training. 
  • Setting up and enhancing Elastic Stack and Kubernetes Clusters.  
  • Release activities, which may require occasional travel to customer sites. 

The skills you’ll need

DevOps
Data Storage
Data Engineering
Programming/Scripting
Big Data Processing

What we'd like to see on your CV

 

  • 2 Years of industry experience with either:
  • a) Strong background in Full Stack Capability Development (4+ years) in JavaScript / Typescript with some experience in DevOps and have mindset to develop operation skills.
  • b) Strong background in DevOps with breadth of experience taking leadership positions in both Development (2+ years) and Operations (2+ years) including setting up toolsets such as Kubernetes.
  • Leads large pieces of work: Either by yourself or working with other members of team.
  • Adaptable and Flexible Work: Can take on broad range of coding and non-coding tasks (described in ‘What You’ll do’ section) with frequent visits and work on customer sites. 
  • Owning customer relationships: Whilst primarily working in BT office there will be regular opportunities to engage customers both face to face and via Video Conferencing. You will be responsible for building and owning customer relationships. This includes managing expectations, put the customer first whilst still acting commercially.

You may also have

 

  • Preferably experience in JavaScript ES6 onwards using React.js, TypeScript, knowledge of functional components and hooks. 
  • Experience in other JavaScript Frameworks and other programming languages including Python, Ruby, Bash, Node.js. 
  • Familiarity with code development and management best practises. The team uses Git and Visual Studio Code.  
  • Experience in working in DevOps and Agile Teams. The team has just migrated to use Gitlab
  • Experience using Docker, Kubernetes, Rancher, OKD or knowledge of other Orchestration tools. 
  • General knowledge of Elastic Stack, which may include: 
  • Kibana, constructing queries, dashboard or plugin creation. 
  • Elasticsearch, working with large datasets and use of API’s. 
  • Logstash, management, configuration, and improvements, extending with Plugins. 

Benefits

 

 

  • Competitive salary
  • BT Pension scheme, minimum 5% Employee contribution, BT contribution 10%
  • On-call allowance (Depending on role requirements)
  • 25 days annual leave (not including bank holidays), increasing with service
  • Huge range of flexible benefits including cycle to work, healthcare, season ticket loan
  • World-class training and development opportunities
  • From January 2025, equal family leave:  receive 18 weeks at full pay, 8 weeks at half pay and 26 weeks at the statutory rate. It’s for all parents, no matter how your family is made up.​
  • Enhanced women’s health support: including help with menopause symptoms, cancer screenings, period care and more.​
  • 24/7 private virtual GP appointments for UK colleagues​
  • 2 weeks paid carer’s leave ​
  • World-class training and development opportunities​
  • Option to join BT Shares Saving schemes.
  • Discounted broadband, mobile and TV packages
  • Access to 100’s of retail discounts including the BT shop

 #LI-Onsite 

Security is one of the fastest growing parts of our global organisation. We are protecting our networks from more than 6,500 cyber attacks each day, investing over £40m in research each year - and in employing nearly 3,000 people, we’re also the largest private cyber employer in the UK.  With incredible opportunities to learn, develop and grow your skills, we’ll invest in you, nurture your potential and shape your future – whatever your background or experience. 
 
In today’s world, safe and secure digital connections have never been more vital. You’ll be joining a global company operating at the forefront of the information age: BT employs 90,000 people in 180 countries. With huge scale, we’re capable of achieving great things, striving to be personal, simple, and brilliant for our customers whilst creating an inclusive working environment where people from all backgrounds can succeed. Play your part. Make a difference. We are the Protectors.

 

A FEW POINTS TO NOTE:

Although these roles are listed as full-time, if you’re a job share partnership, work reduced hours, or any other way of working flexibly, please still get in touch.

We will also offer reasonable adjustments for the selection process if required, so please do not hesitate to inform us.

DON'T MEET EVERY SINGLE REQUIREMENT?

Studies have shown that women and people who are disabled, LGBTQ+, neurodiverse or from ethnic minority backgrounds are less likely to apply for jobs unless they meet every single qualification and criteria. We're committed to building a diverse, inclusive, and authentic workplace where everyone can be their best, so if you're excited about this role but your past experience doesn't align perfectly with every requirement on the Job Description, please apply anyway - you may just be the right candidate for this or other roles in our wider team.

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