Associate Application Security Engineer Jobs in Ontario

End Date

Thursday 01 October 2026

Salary Range

48,987 - 54,430

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

Flexible Working Options

Hybrid Working, Job Share

Job Description Summary

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Job Description

JOB TITLE: WAF Security Engineer

SALARY: 48,987 - 55,000 per annum

LOCATION: Manchester, Leeds, Edinburgh

HOURS: Full-time - 35 hours

WORKING PATTERN: Our work style is hybrid, which involves spending at least two days per week, or 40% of our time, at one of our office sites. Colleagues with disabilities can be supported with workplace adjustments including hybrid working expectations in line with our Flexibility Works policy.

What you'll be doing...

You'll be a key engineer responsible for designing, implementing, evolving and maintaining our Web Application Firewall (WAF) platforms, protecting critical customer-facing services at scale.

You'll use modern engineering practices, including automation and secure-by-default design, to improve the resilience, performance and security of our edge, data centre and cloud environments. The role offers real scope to influence technical direction, raise engineering standards, and develop our WAF and wider Layer 7 security services.

Day to day, you'll work with a high degree of autonomy and contribute technical influence across the team. Your responsibilities will include:

• Design, implement and continuously optimise WAF security controls, developing and tuning rules and policies to improve protection against emerging threats while minimising false positives and maintaining a seamless customer experience.

• Engineer new WAF capabilities using Infrastructure as Code, CI/CD pipelines and policy-as-code approaches to deliver secure, repeatable and scalable outcomes.

• Playing a key role in platform modernisation and service improvements, including refactoring, automation and the reduction of technical debt

• Driving observability and operational insight by improving monitoring, alerting and telemetry to strengthen platform reliability and incident response

• Support the diagnosis and resolution of major incidents, partnering closely with Security Engineering, Network and Cloud teams.

• Embed secure-by-design patterns and guardrails, ensuring controls are codified, consistent and easy for platform consumers to adopt.

• Produce high-quality engineering documentation, including standards, patterns, platform guidance and runbooks, to enable self-service and repeatable delivery.

• Participate in the on-call rota, helping to maintain the operational resilience of critical services, with additional compensation provided.

Why Join us?

If you think all banks are the same, you're wrong. We're a pioneering, fast-changing business that's shaping finance as a force for good. If you're after a role where you can have an impact and do the best work of your career, you've just found it

In this role, you'll have the chance to:

• Shape the future of WAF and Web Application Security capabilities across Lloyds Banking Group.

• Contribute to engineering standards, patterns and guardrails used across multiple teams and platforms.

• Work alongside highly skilled engineers in a culture that values modern engineering, automation and continuous improvement.

• Continue to develop your knowledge in Layer 7 controls and modern engineering practices.

What we're looking for?

• A strong engineering mindset, with hands-on experience of edge, on-premises or cloud-native WAF technologies.

• Solid understanding of networking and web fundamentals, including HTTP/S, DNS, TLS and platform security concepts.

• Experience in any of the following: Application Security, API Security, Bot Protection, and Layer 7 DDoS mitigation.

• Strong automation and scripting skills (Python preferred), with practical experience using InfrastructureasCode tools (Terraform preferred) and modern CI/CD pipelines.

• Ability to contribute to complex technical investigations, diagnose issues under pressure and develop robust solutions.

• Confidence to influence engineering decisions and contribute to the team's technical direction.

And any experience of these would be great...

• Professionallevel cloud certifications and/or recognised security or network engineering accreditations.

• Demonstrable experience with Cloud-based data warehouse technologies.

• Interest in or experience with developing AI solutions to augment security solutions.

We know that great talent comes from many backgrounds. Whilst this job advert may reference specific years of experience, we recognise that skills are developed in many ways, so if you have relevant, transferable experience, we encourage you to apply.

This is a place for you...

Our ambition is to be the leading UK business for diversity, equity and inclusion supporting our customers, colleagues and communities, and we're committed to creating an environment in which everyone can thrive, learn and develop.

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.

We offer reasonable workplace adjustments for colleagues with disabilities, including flexibility in office attendance, location and working patterns. And, as a Disability Confident Leader, we guarantee interviews for a fair and proportionate number of applicants who meet the minimum criteria for the role with a disability, long-term health or neurodivergent condition through the Disability Confident Scheme.

We provide reasonable adjustments throughout the recruitment process to reduce or remove barriers. Just let us know what you need.

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

• A generous pension contribution of up to 15%

• An annual bonus award, subject to Group performance

• Share schemes including free shares

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

• 28 days' holiday, with bank holidays on top

• A range of wellbeing initiatives and generous parental leave policies

Ready for a career where you'll learn and thrive? Apply today and find out more.

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.