Senior Cyber Security Engineer

Methodfi; Greater London; Hybrid; GBP 100,000 - 125,000; Full time

Job summary

A leading AI technology firm in Greater London is seeking a Senior Cyber Security Engineer to lead the security efforts across vital projects. You will play a pivotal role in securing critical infrastructures while developing advanced testing scenarios for AI. The ideal candidate should possess strong Python skills, handle cloud security tools, and have a solid understanding of vulnerability management. This role offers hybrid work with unlimited annual leave and enhanced parental benefits.

Benefits

Unlimited Annual Leave Policy

Private healthcare and dental

Enhanced parental leave

Flexible working

Sanctus Coaching

Hybrid Working (2 days in London office)

Qualifications

• Solid software engineering skills with a focus on security.
• Hands-on experience with cloud security tools and identity management protocols.
• Experience in automated testing and vulnerability management.

Responsibilities

• Lead security efforts across key projects and infrastructure.
• Design and build security test scenarios for AI models.
• Collaborate with cross-functional teams to embed security.

Skills

Python skills

Cloud security tools

Vulnerability management

Creative mindset towards security

Communication for technical advisement

Tools

Security Hub

IAM

WAF

Job description

Why Faculty?

We established Faculty in 2014 because we thought that AI would be the most important technology of our time. Since then, we’ve worked with over 350 global customers.cross transform their performance through human‑centric AI. You can read about our real‑world impact here.

We don’t chase hype cycles. We innovate, build and deploy responsible AI which moves the needle - and we know a thing or two about doing it well. We bring an unparalleled depth of technical, product and delivery expertise to our clients who span government, finance, retail, energy, life sciences and defence.

Our business, and reputation, is growing fast and we’re always on the lookout for individuals who share our intellectual curiosity and desire to build a positive legacy through technology.

AI is an epoch‑defining technology, join a company where you’ll be empowered to envision its most powerful applications, and to make them happen.

About the team

Our Government and Public Services business unit is committed to leveraging AI for the benefit of individual citizens and the public good. whirl

From ourਰਨ work informing strategic government decisions, to optimising our NHS, through to protecting children from harmful online яз content - we know that AI offers opportunities to drive improvements at every level of Government and we are proud to lead on some of the most impactful work happening in the sector.

Because of the nature of the work we do with our Government clients, you may need to be eligible for UK Security Clearance (SC) and willing to work on site with these customers from time to time.

About the role

As a Senior Cyber Security Engineer, you will lead our security efforts across a number of key projects, bridging the gap between robust engineering and AI safety. You will play a pivotal role in securing critical infrastructure for high‑stakes projects while pioneering offensive 'Capture the Flag' scenarios to test the limits of frontier AI models.

If you are a talented software engineer with a security mindset who thrives on solving complex, real‑world problems, this is your opportunity to shape the future of AI safety.

What you’ll be doing:

• Designing and building sophisticated 'Capture the Flag' puzzles and scaffolding to rigorously test the security and दोस्तों capabilities of frontier AI models and agentic systems.
• Setting technical standards for cyber security across our consulting and AI safety business units, acting as the senior technical authority for deployed security practices.
• Implementing and securing cloud‑native environments while managing identity, access, and logging across multiple client deployments.
• Collaborating within cross‑functional teams of machine learning engineers, data scientists, and designers to ensure security is woven into the fabric of the projects you deliver.
• Automating security processes, vulnerability management, and secure development lifecycles to create resilient, scalable software.
• Mentoring and guiding junior engineers and data scientists, fostering a culture of technical excellence and continuous security learning.

Who we’re looking for:

• You are a solid software engineer with a deep interest in security, possessing strong Python skills and the ability personally to maintain and adjust complex infrastructure.
• You possess hands‑on experience with cloud security tools (such as Security Hub, IAM, and WAF) and a firm understanding of identity management protocols like OAuth2.0 and SAML.
• You have a proven track record in vulnerability management and securing the application development lifecycle, including container scanning and automated testing.
• You bring a creative and curious mindset to offensive security, ideally with experience in CTF exercises or red‑team­ing scenarios.
• You are a clear and persuasive communicator, comfortable acting as a technical advisor366 to clients and translating complex risks into actionable engineering tasks.
• You thrive on autonomy and ownership, ready to step into a senior role where you will define best practices in a fast‑paced, evolving domain.
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Our Interview Process

• Talent Team Screen (30 minutes)
• Technical Interview (90 minutes)
• System Design Interview (90 minutes)
• Commercial Interview (60 minutes)

Our Recruitment Ethos

We aim to grow the best team - not the most similar one. We know that diversity of individuals fosters diversity of thought, and that strengthens our principle of seeking truth. And we know from experience that diverse teams deliver better work, relevant to the world in which we live. We’re united by a deep intellectual curiosity and desire to use our abilities for measurable positive impact. We strongly encourage applications from people of all backgrounds, ethnicities, genders, religions and sexual orientations.

Some of our standout benefits:

• Unlimited Annual Leave Policy
• Private healthcare and dental
• Enhanced parental leave
• Family‑Friendly Flexibility & Flexible working
• Sanctus Coaching
• Hybrid Working (2 days in our Old Street office, London)

If you don’t feel you meet all the requirements, but are excited by the role and know you bring some key strengths, please do apply or reach out to our Talent Acquisition team for a confidential chat – [e-mail] Please know we are open to conversations about part‑time roles or condensed hours.