Senior Security Incident Response Engineer

Company DescriptionWe’re Checkout.com. You might not know our name, but companies like eBay, Spotify, Klarna, Uber, and Sony do, because we’re behind many of the digital experiences you use every day. We are where the world checks out, enabling over 10 billion transactions yearly for more than one billion global shoppers. Whether you want to book a holiday, order food, renew a subscription, or check out online, there’s a good chance our tech powers the payments behind the scenes. Our platform helps the most ambitious businesses deliver effortless digital experiences, at scale. If you want to do career-defining work, you’ve come to the right place. We move fast, think globally, and believe great teams are built by hiring exceptional people with conviction, curiosity, and the desire to make an impact. With 20 offices across six continents and London as our HQ, we’re shaping the future of fintech – and we’re just getting started.The roleThis role exists to ensure security incidents are rare, contained, and unsurprising.You will own the technical direction of security incident response and response readiness across the company. When a serious incident occurs, you lead from the front — investigating, containing, and driving resolution with calm authority. When incidents are not happening, you are actively eliminating the conditions that would cause the next one.This is not a role for someone who waits for alerts. It is for someone who constantly asks “what will break next, and why?” — and then fixes that problem before an attacker finds it.You will operate across endpoint, identity, cloud, and SaaS environments, working closely with Security Operations, IT, and Engineering to reduce real risk, not theoretical risk. What you’ll be responsible forIncident Response & Technical LeadershipLeading the end-to-end technical response to high-severity security incidentsOwning investigation, containment, eradication, and recovery activitiesActing as the senior technical authority during live incidentsProviding clear, decisive guidance to Security Operations under pressureCoordinating response across endpoint, identity, cloud, and SaaS platformsSupplying executives, legal, and risk stakeholders with accurate technical context and impact assessmentsEnsuring incidents are driven to resolution, not just stabilisedResponse Readiness & Proactive Risk ReductionDesigning, maintaining, and continuously improving incident response playbooks and runbooksIdentifying systemic weaknesses that increase incident likelihood or blast radius, including:Unpatched or inconsistently patched systemsExposed services and misconfigurationsDegraded or ineffective controlsUsing SIEM and security tooling to prioritise patching and vulnerability risk based on real exposure and exploitability, not CVSS scores alonePartnering with IT, Cloud, and Engineering teams to drive remediation based on business riskTracking remediation through to completion and validating effectiveness post-fixLearning, Detection, and MaturityTurning incidents, near-misses, and exposure findings into:Improved detectionsStronger preventative controlsFaster and less disruptive responseDriving readiness through simulations, tabletop exercises, and scenario testingRaising the overall maturity of the Cyber Security function by pushing advanced response and exposure management practices into BAU operations What we’re looking forProven, hands-on experience leading response to real security incidentsStrong investigation capability across endpoint, identity, and cloud environmentsDemonstrated experience prioritising vulnerability or patching risk in large, complex estatesAbility to remain decisive and effective during incidents, and analytical between themClear communicator who can influence outcomes without needing direct ownership of every fixPragmatic mindset: reduce risk first, optimise laterDFIR, forensics, or malware analysis experienceProven ability to correlate vulnerability data with runtime telemetry and attacker behaviour to drive actionable risk reductionCloud-first incident response or exposure management experienceExposure to compliance-driven security requirementsExperience working alongside vulnerability scanning platforms without being constrained by themAdditional InformationBring all of you to workWe create the conditions for high performers to thrive, through real ownership, fewer blockers, and work that makes a difference from day one.Here, you’ll move fast, take on meaningful challenges, and be recognized for the impact you deliver. It’s a place where ambition gets met with opportunity, and where your growth is in your hands.We work as one team, and we back each other to succeed. So whatever your background or identity, if you’re ready to grow and make a difference, you’ll be right at home here.It’s important we set you up for success and make our process as accessible as possible. So let us know in your application, or tell your recruiter directly, if you need anything to make your experience or working environment more comfortable.Life at Checkout.comWe understand that work is just one part of your life. Our hybrid working model offers flexibility, with three days per week in the office to support collaboration and connection.Curious about what it’s like to be part of our team? Visit our Careers Page to learn more about our culture, open roles, and what drives us.For a closer look at daily life at Checkout.com, follow us on LinkedIn and InstagramFind more English Speaking Jobs in United Kingdom on Arbeitnow