Senior Infrastructure Specialist - Network Security & Assurance

Lloyds Banking Group; Leeds; Hybrid; GBP 70,000 - 79,000; Full time

Job summary

Join a leading company as a Senior Infrastructure Specialist, where you will play a critical role in protecting network security for the UK’s largest digital bank. This position involves leading efforts in automating compliance, monitoring security standards, and driving improvements in network security architecture while working in a collaborative team environment.

Benefits

Generous pension contribution of up to 15%

Annual performance-related bonus

Share schemes including free shares

Discounted shopping benefits

30 days holiday plus bank holidays

Wellbeing initiatives and parental leave policies

Qualifications

• Extensive network/security experience required.
• Hands-on experience with automation workflows and policy tools essential.
• Good understanding of firewall rule sets and security practices needed.

Responsibilities

• Lead compliance and automation efforts by designing and maintaining network security tools.
• Monitor and assure compliance across cloud and on-prem environments.
• Drive security improvements and mentor junior engineers.

Skills

Network Security

Automation

Compliance Knowledge

Leadership

Tools

AlgoSec

Skybox

Tufin

FireMon

Job description

End Date

Wednesday 02 July 2025

Salary Range

£70,929 - £78,810

We support flexible working – click here for more information on flexible working options

Flexible Working Options

Hybrid Working, Job Share

Job Description Summary

.

Job Description

JOB TITLE:Senior Infrastructure Specialist - Network Security & Assurance

SALARY: £70,929 - £78,810

LOCATION(S):Manchester or Leeds

WORKING PATTERN:Our work style is hybrid, which involves spending at least two days per week, or 40% of our time, at our locations noted above.

About this Opportunity

Join us at Lloyds Banking Group as a Network Security Senior Infrastructure Specialistand play a pivotal role in protecting the UK’s largest digital bank. This opportunity sits within our Network Security Prevention, Detection, Compliance and Assuranceteam – part of the wider Network Security & Traffic Management Lab – which manages critical controls like Intrusion Prevention/Detection Systems (IPS/IDS) and Network Detection & Response (NDR) across our on-prem and multi-cloud environment. In this role, you’ll lead the technologies that enforce our network security policies and keep our systems compliant in a dynamic, evolving threat landscape. It’s a chance to drive automation in network security, influence future security architecture, and ensure we meet internal controls and external regulatory requirements – all while working in an inclusive, collaborative team that values your growth and ideas.

As a Network Security Senior Infrastructure Specialist, you will:

• Lead network policy compliance and automation:Design, build, and maintain tools that enforce network security policies and automate firewall rule changes, ensuring our firewall rulesets remain clean, efficient, and compliant with best practices.

• Monitor and assure security compliance:Implement mechanisms to continuously track network security compliance across our cloud and on-prem environments, providing evidence and reports to satisfy internal audit and external regulators.

• Drive security improvements:Proactively identify gaps or risks in network security posture and work with architects to shape new policies or architectural enhancements. Your insights will help influence future network security strategy and frameworks.

• Collaborate and innovate:Work closely with multi-functional teams in Cyber Security and IT to integrate compliance tooling and processes, improving our overall security monitoring and response capabilities. You’ll also evaluate emerging solutions (such as compliance-as-code) to keep us at the forefront of automation.

• Mentor and guide others:Act as a technical leader within the team, sharing your expertise. You’ll mentor junior engineers and influence a culture of continuous improvement, ensuring the whole team grows its network security skills.

Why Lloyds Banking Group

We’re on an exciting journey to transform our Group and the way we’re shaping finance for good. We’re focusing on the future, investing in our technologies, workplaces, and colleagues to make our Group a great place for everyone. Including you.

What you’ll need

• Extensive network/security experience: D eep technical knowledge of security boundary devices such as firewalls and intrusion detection/prevention systems

• Automation & tooling skills:Hands-on experience with automation workflows and policy administration tools (for example, AlgoSec, Skybox, Tufin, FireMonor similar), or exposure to “compliance-as-code” frameworks. You’re comfortable using technology to simplify complex processes.

• Firewall policy expertise:Good understanding of firewall rule sets and network security policy standard practices – you know how to design and review rules that are effective, compliant, and minimize risk.

• Compliance and controls knowledge:Familiarity with regulatory standards and certification frameworks (e.g. ISO 27001, PCI-DSS) and experience participating in audits or maintaining key security controls. You understand how to translate regulatory requirements into practical network security measures.

• Leadership and collaboration:Demonstrable ability to lead initiatives and mentor junior technical staff. You enjoy sharing knowledge, guiding colleagues, and building an inclusive team environment. You communicate effectively and can influence partners when refining security policies or processes.

About working for us

Our focus is to ensure we're inclusive every day, building an organisation that reflects modern society and celebrates diversity in all its forms. We want our people to feel that they belong and can be their best, regardless of background, identity, or culture. We were one of the first major organisations to set goals on diversity in senior roles, create a menopause health package, and a dedicated Working with Cancer initiative. And it’s why we especially welcome applications from under-represented groups. We’re disability confident. So, if you’d like reasonable adjustments to be made to our recruitment processes, just let us know

We also offer a wide-ranging benefits package, which includes

• A generous pension contribution of up to 15%

• An annual performance-related bonus

• Share schemes including free shares.

• Benefits you can adapt to your lifestyle, such as discounted shopping.

• 30 days’ holiday, with bank holidays on top

• A range of wellbeing initiatives and generous parental leave policies

Want to do amazing work, that’s interesting and makes a difference to millions of people? Join our journey.

At Lloyds Banking Group, we're driven by a clear purpose; to help Britain prosper. Across the Group, our colleagues are focused on making a difference to customers, businesses and communities. With us you'll have a key role to play in shaping the financial services of the future, whilst the scale and reach of our Group means you'll have many opportunities to learn, grow and develop.

We keep your data safe. So, we'll only ever ask you to provide confidential or sensitive information once you have formally been invited along to an interview or accepted a verbal offer to join us which is when we run our background checks. We'll always explain what we need and why, with any request coming from a trusted Lloyds Banking Group person.

We're focused on creating a values-led culture and are committed to building a workforce which reflects the diversity of the customers and communities we serve. Together we’re building a truly inclusive workplace where all of our colleagues have the opportunity to make a real difference.