Head of Security

Head of Security

Full-Time 81000 - 99000 £ / year (est.) Home office (partial)
MrQ

At a Glance

  • Tasks: Lead and build a dedicated security function at an award-winning online casino.
  • Company: Join MrQ, a fun and innovative online casino with explosive growth since 2018.
  • Benefits: Enjoy competitive salary, extra leave days, parental leave, and wellness incentives.
  • Other info: Be part of a diverse team that values collaboration and innovation.
  • Why this job: Shape the future of security in a dynamic, AI-driven environment.
  • Qualifications: 10+ years in security with leadership experience and deep technical credibility.

The predicted salary is between 81000 - 99000 £ per year.

MrQ - we're an awesome, award winning online casino launched in 2018. We're big on tech, big on performance and most of all - big on fun. Over the years, we have experienced explosive growth - which means we need more rock stars to join our quest for total world domination.

This is a founding leadership role. We’re building a dedicated security function at MrQ, with its own strategy, roadmap, team and budget, and you’ll be the one building it. You won’t start from zero, and you won’t be handed someone else’s plan. Serious groundwork is already in place: an independent security maturity baseline, a live GRC platform, EDR and identity programmes in deployment, and security investment with real backing from the exec team. The strategy and roadmap from here are yours to define. Pressure-test what’s in flight, keep what works, change what doesn’t. You’ll report directly to the CTO and lead both Security and IT Operations. The Lead of IT Ops reports to you, and you’ll hire and lead the security engineering team, starting with a Principal Security Engineer. This is a player-coach role. We need someone strategic enough to own board-level risk conversations, and technical enough to earn the respect of a Principal-level engineer and challenge architecture decisions on an AWS-native platform. With a small team and serious AI leverage, you’ll build as well as lead. Threat modelling, architecture reviews and AI-powered security tooling are part of the job, not beneath it. Here, automation replaces headcount by design.

What You Will Do

  • Build and lead the team
  • Run security engineering and operations
  • Own governance, risk and compliance
  • Secure how we build with AI
  • Build the security culture
  • Own the security vendor portfolio

What We're Looking For

  • Own the security strategy
  • Define and own the security strategy and maturity roadmap. Set priorities, allocate budget and effort, and be accountable for the targets you set.
  • Report security posture, risk and investment cases to the CTO, exec team and board.
  • Translate technical risk into business impact.
  • Make sure security is part of every major technology and product decision, including how we build with AI, not just what we buy.
  • Lead the IT Operations function through its Lead: identity and access, employee onboarding and offboarding, the device fleet, SaaS tools, and data requests (DSARs).
  • Hire, develop and lead the security engineering team, starting with a Principal Security Engineer.
  • Design the function for resilience: clear ownership, documented processes, no single points of failure.
  • Own the security tooling end to end (EDR/XDR, SIEM, identity, vulnerability management, email security, DLP), including the deployments already in flight.
  • Own security incident and breach response: deciding severity, directing containment, regulatory notification (ICO, UKGC) and post-incident review.
  • Direct security across a cloud-native AWS estate: platform, payment flows, APIs, player data.
  • Own the GRC programme: risk register, policies, control framework, audit readiness (ISO 27001 path, Cyber Essentials, GDPR) and the compliance-automation platform behind it.
  • Partner with Compliance on the regulatory side of a UKGC-licensed operator: player data protection, technical standards, audit evidence.
  • Build documentation to a standard that survives external scrutiny: auditors, regulators and commercial due diligence.
  • Own the security model for all AI-related systems: the AI gateway, agent permissions and sandboxing, data boundaries, and governance of third-party AI tools.
  • Own the company’s AI usage policy: which tools are approved, what data they can touch, and what agents are allowed to do on their own.
  • Own security awareness across the company: training, phishing simulations, onboarding inductions, and security champions inside the squads.
  • Own vendor selection, commercial relationships and spend across the security stack.
  • Run build‑vs‑buy honestly. Kill tools that don’t earn their keep.

Qualifications

  • 10+ years in security, including 3+ years leading a security function or team with real budget and hiring ownership
  • Built or significantly matured a security function before: you’ve taken a company up a maturity curve, not just operated inside a mature one
  • Deep technical credibility: you can hold your own with senior security and platform engineers on EDR, SIEM, identity and cloud security (AWS), and you know when to defer
  • Direct experience owning GRC: policies, control frameworks, risk registers, and leading audits (ISO 27001, SOC 2, Cyber Essentials or equivalent)
  • Led security incident response at company level: you’ve owned real incidents, not just contributed to them
  • Managed managers or senior individual contributors, ideally including an IT operations remit
  • Exec‑level communicator: you can hold a board conversation about risk appetite and a whiteboard session about detection logic in the same day
  • Pragmatist: balances risk with business enablement in a company that ships fast
  • Builder’s mindset in the age of AI: you’d rather automate a control than staff it, and you use AI tooling to make a small team punch far above its weight
  • Experience securing AI/LLM systems: agent architectures, model access controls, AI tooling governance
  • Experience preparing a security function for commercial due diligence or external investment scrutiny
  • Application or product security background in a platform business
  • Relevant senior certifications (CISSP, CISM, CCISO) or an equivalent proven track record

At MrQ, we take pride in providing an array of fantastic benefits to our valued team members. Enjoy a competitive salary package that recognizes your hard work and dedication. Need some extra time off? We've got you covered with additional leave days, and we believe in celebrating life's special moments, including your birthday, with dedicated birthday leave. Family matters to us, too, which is why we offer a generous four‑week parental leave. Your well-being is our priority, supported by international health and life insurance. Stay motivated with wellness incentives and seize opportunities for personal and professional growth with our growth allowance. Embrace a flexible working environment that caters to your needs, and join our friendly and multinational team, where collaboration and camaraderie flourish. At MrQ, we’re committed to ensuring that your experience with us goes beyond just a job – it’s a fulfilling journey with a supportive community.

We are committed to fostering a workplace that values and celebrates diversity. We welcome individuals of all backgrounds and experiences, and we believe that a diverse and inclusive environment leads to innovation and success. We actively promote equal opportunities for all employees and strive to create a space where everyone's voices are heard and respected. Join us in our journey to build a truly inclusive workplace where every person can thrive and contribute to our collective success.

Head of Security employer: MrQ

At MrQ, we pride ourselves on being an exceptional employer that champions innovation and collaboration in the online gaming industry. Our vibrant work culture fosters personal and professional growth, offering a competitive salary, generous leave policies, and wellness incentives to ensure our team members thrive. With a commitment to diversity and inclusion, we create a supportive environment where every voice is valued, making your journey with us not just a job, but a fulfilling career path.

MrQ

Contact Details:

MrQ Recruitment Team

We think you need these skills to ace Head of Security

Security Strategy Development
Governance, Risk and Compliance (GRC)
Cloud Security (AWS)
Security Incident Response
Security Engineering Leadership
Technical Risk Assessment
AI Security Management