Job Description
Software Engineering Specialist
Req Id:  58065
Posting Start Date:  5/13/26
Job Function:  Security
Division:  UK Business
Job Location:  GBR Cheltenham - Project Offic, GBR-Manchester-Deansgate
Advertised Salary:  Competitive

Job Req ID: 58065

Posting Date: 12th May 2026

Function: Security 

Location: Cheltenham or Manchster

Salary: Competitive with great benefits 

Due to the sensitive nature of this role, you will be required to undergo DV (Developed Vetting) level Security Clearance (https://www.gov.uk/government/publications/united-kingdom-security-vetting-clearance-levels/national-security-vetting-clearance-levels). An allowance of £5k per annum may be payable monthly while you hold this DV and continue to work in a role that requires that level of security clearance. The terms of this allowance will be made available if you are successful in being recruited into this role.

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

We are looking for an experienced software engineer to join a new multi-disciplined Engineering building tools to solve Cyber Security problems. We are currently looking for a frontend developer with deep expertise in developing powerful user interfaces using JavaScript, TypeScript, React. You will use CI/CD pipelines and be familiar with applications hosted on Kubernetes. You’ll have experience building resilient systems with metrics and monitoring build throughout the application.

As a Software Engineering Specialist, you will be a hands-on technical expert, working directly with customer to solve their problems. This role demands strong technical acumen, a proactive mindset, and the ability to influence platform improvements through technical excellence. Joining a growing project, you’ll set the technology choices and ensure the team is following best practices.

In this ever-changing environment, you’ll work on interesting and challenging problems, that stretch you and provide the opportunity to use the latest technologies & industry best practices.

What you’ll be doing

User Interface

  • Create powerful, flexible user interfaces for a technical user base
  • Engage with end users to understand their needs and design user interfaces

Software Development

  • Develop resilient, well tested code
  • Perform code reviews & work with junior team members to ensure code quality standards are met
  • Keep up to date with the latest best practices & influence technology choices and decisions

Platform Stability and Reliability

  • Ensure the platform meets performance, availability, and reliability SLAs
  • Proactively identify and resolve performance bottlenecks and risks in production environments.
  • Maintain and improve monitoring, logging, and alerting frameworks to detect and prevent incidents.

Automation and Efficiency

  • Build and maintain tools to automate routine tasks, such as deployments, scaling, and failover.
  • Contribute to CI/CD pipeline improvements for faster and more reliable software delivery.

Team

  • Identify and contribute to the improvement of inefficient ways of working
  • Actively contribute and engage in knowledge sharing activities
  • Engage with and support users of the Platform

Essential Skills

  • Experience developer in one or more of the following: JavaScript, Typescript, Ruby
  • Used frameworks such as: React, NodeJS
  • Well versed in unit and system testing tools, code linters
  • Performed detailed code reviews and fed back changes
  • Build and deployed Docker containers
  • Kubernetes application development (Deploying applications, optimising application resilience & troubleshooting deployments)
  • Manage work stack using trackers (eg Jira)
  • Document system design decisions
  • Scripting using Bash or Python

Desirable Skills

  • Familiar with the Elastic stack technologies and Kibana plugin development
  • Have used DevOps tools and principles like Git, Jenkins, GitOps
  • Used system monitoring tools such as CheckMK, Prometheus, Grafana or Loki

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
  • Equalised 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.

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.