About the role

This role is critical to protecting BT’s customers, platforms, information and reputation by ensuring security risks are identified, governed and remediated across Core Platforms – Migrations. The IT Security Lead supports secure delivery, operational resilience and regulatory alignment by embedding security into change, migration and service delivery activity from design through to live operation.

What you’ll be doing

Assess the current security landscape across legacy and migrating platforms, identifying opportunities to strengthen security controls and reduce risk.
Review current security posture, identify vulnerabilities and control gaps, and drive remediation through prioritised improvement plans.
Partner with engineering, architecture and delivery teams to embed security-by-design into platform change and transformation initiatives.
Provide clear reporting, insights and recommendations on security risks and priorities to support effective decision-making.
Champion continuous improvement in security governance, resilience and ways of working, ensuring compliance with security standards and audit requirements.

Essential Skills / Experience

Security Engineering & Technical Risk Management
Ability to identify security risks and vulnerabilities, prioritise remediation, and work with engineering teams to strengthen platform security.
Stakeholder Influence & Business Case Development
Strong influencing skills with the ability to communicate risk, build business cases, and secure stakeholder support for security initiatives.
Security-by-Design in Complex Platform Environments
Experience embedding security into platform change, migration, and transformation programmes while driving practical security improvements

Desirable Skills / Experience

Enterprise Platform & Migration Experience
Experience working within large-scale platform migrations, transformation programmes, or complex enterprise technology environments.
Cloud & Modern Infrastructure Security
Knowledge of cloud security principles, infrastructure security controls, and securing hybrid technology environments.
Vulnerability & Patch Management
Experience overseeing vulnerability remediation, patch governance, secure configuration, and risk prioritisation across multiple technology stacks.
Security Governance & Assurance
Understanding of security policies, control frameworks, audit activities, and compliance requirements within regulated environments.
Architecture & Security-by-Design Principles
Ability to contribute to solution design reviews and embed security considerations into engineering and architecture decisions.
Telecommunications or Critical National Infrastructure Experience
Experience working in telecoms, network services, or highly resilient operational environments where security and availability are critical.
Security Certifications
Professional qualifications such as CISSP, CISM, Security+, ISO27001, CCSK or equivalent experience.
Incident & Problem Management Exposure
Experience supporting security incidents, root cause analysis, operational resilience activities, and post-incident improvement programmes.

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.

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.

About BT Group

We’re one of the world’s leading communications services companies. At BT Group, the solutions we sell are integral to modern life. Our purpose is as simple as it is ambitious: we connect for good.

There are no limits to what people can do when they connect. And as technology changes our world, connections are becoming even more important to everyday life.

Today, that’s truer than ever. The connections we make are helping solve the world’s biggest challenges such as the global pandemic, climate change and cyber security. Through the power of technology, we’re supporting customers to live, work and play together better.

Industry

Telecommunications

Company Size

10,000+ employees

Headquarters

London, GB

Year Founded

Unknown

Website

bt.com

Social Media

Migration - Tech Cluster Lead