Senior Security Engineer, Security Incident Response Team (SIRT) - EMEA

Roblox

Every day, tens of millions of people come to Roblox to explore, create, play, learn, and connect with friends in 3D immersive digital experiences– all created by our global community of developers and creators.  At Roblox, we’re building the tools and platform that empower our community to bring any experience that they can imagine to life. Our vision is to reimagine the way people come together, from anywhere in the world, and on any device. We’re on a mission to connect a billion people with optimism and civility, and looking for amazing talent to help us get there.  A career at Roblox means you’ll be working to shape the future of human interaction, solving unique technical challenges at scale, and helping to create safer, more civil shared experiences for everyone. As a founding member of the Security Operations team in EMEA, you will join us at an exciting time in Roblox’s SIRT & SOC program. You will design and build the detections, automation and tooling that let a lean team monitor and protect players, developers, employees and the platform at global scale and serve as security incident commander in the region. This is a highly autonomous role where you will be a primary decision-maker, core to our mission to maintain a highly capable 24/7/365 monitoring and response capability. While you will work in close collaboration with peers at our US West Coast Headquarters, the time difference requires an engineer who can operate independently, making critical decisions without immediate oversight. We favor engineering our way out of toil through automation, orchestration, detections-as-code, and risk-based prioritization, while retaining the deep technical skills required to conduct detailed, hands-on analysis and lead response end-to-end when the situation warrants. Work Environment: This role is based in London, UK. You will be working from a dedicated, private space located within a shared office environment, designed to enable collaboration while remaining secure. YOU WILL: * Build Detection & Response Systems: Design, write, and maintain production-quality detections, automations and integrations (detections-as-code, SOAR playbooks, data and enrichment pipelines) that scale our monitoring capability and reduce manual toil. * Own Tooling & Platform: Develop and improve the tooling the global SIRT/SOC depends on alert quality and enrichment, case-management integrations and automation that powers reliable "follow-the-sun" hand-offs. * Exercise High Autonomy: Act as the primary Incident Commander for the European time zone, making critical, time-sensitive decisions independently before US HQ comes online. You will serve as the senior-most security engineering point of contact in the region. * Drive Strategy & Architecture: Shape the technical direction of the detection & response engineering function, specifically architecting how global hand-offs and "follow-the-sun" models can be optimized and automated. * Command Security Incidents: Ensure serious threats and impacts are understood, mitigated, and learned from with speed and professionalism, often leading responses end-to-end without immediate escalation paths during local hours — and turning what you learn into durable, automated detections. * Conduct Forensic Investigations & Threat Hunt: Dig into complex context to determine whether threats exist, take decisive action and proactively hunt for anomalous activity in our signals, distinguishing outliers from threats. * Lead High-Profile Responses: Collaborate with Security and Engineering to lead responses to major vulnerabilities or platform-wide events. * Collaborate Cross-Functionally: Work with Legal, HR, Executive teams, and external partners (Developers & Customers). You will also travel semi-regularly to the USA to visit HQ, ensuring deep alignment with central engineering and security leadership. YOU HAVE: * Experience: 10+ years across security engineering, Infosec, IT, Infra/SRE, and/or Incident Response. * Specialization: 7+ years specifically in Detection or Response, with a track record of building, writing detections, automation or security tooling, not solely operating. * Engineering Proficiency: Comfortable writing and reviewing production-quality code (Scripting) and building automations, integrations and data pipelines that others depend on. * Autonomous Leadership: Proven ability to work independently in satellite offices or distributed teams. You are comfortable being the "person in charge" during your shift and making calls that impact the business. * Incident Command: Extensive experience operating as an incident commander. You can flex into deep engineering work but also possess the executive presence to coordinate responders and communicate status to leadership. * Investigations: Expert-level capability investigating threats in enterprise and production environments, taking ownership from identification to resolution. * Knowledge/Tools/Techniques: Deep understanding of security tooling (SIEM, EDR, IDS/IPS, NDR, SOAR) and experience extending or building on it. You are proficient in applying Incident Response frameworks (NIST IR Lifecycle, Cyber Kill Chain, MITRE ATT&CK) to real-world scenarios, and you collaborate effectively with engineering colleagues, leveraging extensive expertise across infrastructure and technologies (Public Cloud, OS, Virtualization, Containerization, Networking, Build/Development infrastructure, and Hardware). * Education: Bachelor's degree in Computer Science, Cybersecurity, or a related technical field; advanced degree preferred or equivalent experience. YOU ARE: * A Builder-Operator: You would rather automate a problem out of existence than staff around it and you hold yourself to an engineering bar even under incident pressure. * A Strategic Self-Starter: You don't wait for instructions. You identify gaps in coverage — especially those unique to regional or time-zone-specific challenges — and fix them. * A Detailed Thinker: You enjoy exploring the details and considering the second- and third-order effects of your decisions. * An Eager Problem Solver: You are drawn to complex issues rather than avoidant of them. * Emboldened to Make Change: You instinctively ask what you can do to improve the situation rather than waiting to be prompted. * Compelled by our Mission: You are driven by the opportunity to protect our community and the safe space we've created. * A Calculated Risk Taker: You move fast, navigating reasonable risks to take action and build capabilities as quickly as possible. Roles that are based in an office are onsite Tuesday, Wednesday, and Thursday, with optional presence on Monday and Friday (unless otherwise noted). Roblox provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws. Roblox also provides reasonable accommodations to candidates with qualifying disabilities or religious beliefs during the recruiting process. For US based roles only, please note the Company may not be able to employ candidates for this role who have United States work authorization related to certain U.S. visa categories, or support future H-1B sponsorship at this time.

Sumup

ABOUT THE TEAM At SumUp, we're on a mission to bring merchants and consumers closer together and help local communities thrive. Within the Consumer Mission, we're building a rewarding banking experience that connects people to the small businesses they love while tackling some of the most technically demanding challenges in fintech: critical infrastructure migrations, smooth, uninterrupted payment experiences, seamless open banking integrations, and high‑availability banking systems that can’t afford to fail – all while enabling free transactions for our merchants. This role sits at the heart of that work — you’ll take real ownership of backend services that are close to our consumers, directly shaping their everyday experience, with impact that’s visible and felt across the entire platform. 🎥 Take a look inside our London office WHAT YOU'LL DO * Build and maintain Backend services for Core neobanking features including bank transfers, open banking, savings accounts, and payment processing * Take end-to-end ownership of features and projects, covering scoping, design, development, testing, deployment, and maintenance, leveraging Go along with Docker and Kubernetes for container orchestration. * Take ownership of critical infrastructure migrations — including our banking core system transitions — without disrupting live customer experiences * Collaborate closely with cross-functional teams including product, design, data science, security, and operations) to understand requirements, provide technical insights, and contribute to architecture discussions that ship meaningful banking features end-to-end * Support fellow developers and actively help build a collaborative, innovative engineering culture * Shape technical architecture and lead code reviews, helping define and promote best practices in code quality, testing, automation, and security to raise the overall engineering bar. * Build and integrate tools and systems that improve operational efficiency and reliability, with strong observability through monitoring, alerting, and hands‑on involvement in incident response and post‑mortems. YOU'LL BE GREAT FOR THIS ROLE IF YOU HAVE… * Strong proficiency in Go, Kotlin or Python, with a track record of building scalable, production-grade backend services * Experience working with cloud platforms (AWS or comparable) and container orchestration tools such as Docker and Kubernetes * Solid understanding of SQL and NoSQL databases, distributed systems, and the trade-offs that come with high-availability requirements * Comfort navigating complex, regulated environments — whether that's financial services, payments, or similarly high-stakes domains * A collaborative, product-oriented mindset with the ability to work independently, communicate clearly, and adapt when priorities shift Any of the following would be considered a plus * Previous experience in a Growth-focused engineering team. * Familiarity with the Fintech or Banking regulatory landscape. No visa sponsorship available with this position WHY YOU SHOULD JOIN SUMUP * 🌎 Opportunity to work with a truly global, multicultural team from our central London Bridge location. This involves an office-first setup * 🌈 Commitment to Diversity and Inclusion: be part of a workplace that values and promotes diversity, fostering an inclusive environment where everyone's perspectives are respected and embraced * 🚀 Enrolment onto our Virtual Stock Option programme: you will own a stake in SumUp's future success * 🏖 Generous time off: enjoy 28 days of paid leave, plus bank holidays and special leaves * 📚 A dedicated annual L&D budget for attending conferences and/or advancing your career through further education * 🏥 Health matters: private health insurance, including optical and dental * 🚗 Life made easier: salary-sacrifice commuter benefits via Gogeta * 💼 Financial security: retirement scheme (SumUp matches 7% when you contribute 5%) * 🛡 Peace of mind: life insurance from MetLife for 2× your salary * 🌴 Break4me: 1-month sabbatical after 3 years of service * 🔗 Referral Bonus: earn additional rewards by referring talented individuals to join the SumUp team ABOUT SUMUP Be empowered to do more that matters. At SumUp, we're on a mission to empower small businesses across the globe by providing simple and affordable tools that allow them to thrive. Today, over 4 million businesses in 37 markets rely on SumUp as their financial partner to manage payments, finance and customer relationships. Our commitment to small businesses is reflected in our diverse team of over 3,000 SumUppers from over 90 nationalities, united by global collaboration and an innovative mindset. Our core values lay the foundation for who we are and what we stand for, shaping our work culture and driving our success. We foster inclusivity and a continuous learning culture, providing a safe space for personal and professional growth. Our differences make us unique and strong as we strive to create an environment where everyone belongs and feels supported, no matter how they identify. SumUp is proud to be an Equal Employment Opportunity employer, actively seeking and embracing diversity in our workforce. We don't make hiring or employment decisions based on race, colour, religion or religious belief, ethnic or national origin, nationality, sex, gender, gender identity, sexual orientation, disability, age or any other basis protected by applicable laws or prohibited by company policy. Our commitment extends beyond recruitment to creating a safe and respectful workplace where harassment of any form is strictly prohibited. Discover more about our culture and opportunities on our careers website, and follow our journey on LinkedIn, Instagram, and TikTok. 📽 Want to bring this role to life visually? Check out our Global Employer Brand video library to add a video to your job post or create LinkedIn content. Job Application Tip We recognise that candidates feel they need to meet 100% of the job criteria in order to apply for a job. Please note that this is only a guide. If you don’t tick every box, it’s ok too because it means you have room to learn and develop your career at SumUp.

Datadog

As a Network Engineer II on the Office Technology team, you will implement and support office network solutions across Datadog’s global offices. You will own well-scoped deployment and upgrade work, troubleshoot connectivity issues across LAN, WAN, and Wi-Fi, and partner with senior engineers on larger designs and cross-office initiatives. You will collaborate closely with vendors, Facilities, AV, IT Support, Security, and Infrastructure teams to keep Datadog offices connected, reliable, and observable. This is an IC2 role with a mix of project work and day-to-day operations. You will take ownership of clearly defined areas of the office network stack, execute production changes with care, and grow your ability to design, automate, and improve office network services with support from senior engineers. You will also use AI-assisted tools responsibly to improve troubleshooting, documentation, automation, knowledge discovery, and operational follow-through. At Datadog, we place value in our office culture - the relationships that it builds, the creativity it brings to the table, and the collaboration of being together. We operate as a hybrid workplace to ensure our employees can create a work-life harmony that best fits them. What You’ll Do:  * Deploy and configure network solutions for new and existing offices, including switches, wireless access points, routers, and firewalls * Own scoped portions of office rollouts and upgrade projects, from planning through execution and validation * Partner with ISPs, cabling providers, hardware vendors, and internal teams to turn up new services and resolve issues * Troubleshoot LAN, WAN, and Wi-Fi issues using structured debugging methods, packet capture, logs, and performance data * Manage routing, VLAN, firewall, and wireless configurations following team standards and change-management processes * Contribute to repeatable deployment patterns through templates, documentation, scripting, or infrastructure-as-code * Monitor office network health using Datadog dashboards and other tooling, and participate in incident response and post-incident reviews * Maintain clear documentation for designs, runbooks, deployment procedures, and operational workflows * Collaborate with and provide network guidance to Office Technology Administrators, IT Support, Facilities, AV, Security, and Infrastructure partners * Help maintain office network standards, hardware lifecycle plans, and operational consistency across global sites * Apply AI-assisted tools thoughtfully to reduce operational toil, improve runbooks, summarize incidents or investigations, and make network operations more repeatable and observable. Who You Are:  * Grounded in networking fundamentals, including TCP/IP, routing, switching, VLANs, DHCP/DNS, and wireless concepts * Experienced working hands-on with enterprise network equipment such as switches, access points, routers, and firewalls * Comfortable executing production changes, validating outcomes, and escalating when risk or ambiguity increases * Able to troubleshoot connectivity and performance issues using logs, packet captures, monitoring data, and clear hypotheses * Pragmatic, detail-oriented, and interested in improving runbooks, documentation, and operational processes * A clear communicator who can work effectively with technical and non-technical partners across offices and time zones * Excited to grow your depth in network engineering, observability, automation, and secure office connectivity * AI-fluent in your day-to-day work: you use AI-assisted tools to learn, troubleshoot, document, and automate, while validating outputs and protecting sensitive information.   Bonus Points: * Experience with Meraki, Aruba, Cisco, Palo Alto, Fortinet, or similar enterprise networking platforms * Familiarity with Datadog or other monitoring and observability tools * Scripting or automation experience, for example Python, Ansible, Terraform, or vendor APIs * Experience supporting multiple office sites, hybrid office environments, office buildouts, or office relocations * Familiarity with secure network practices such as segmentation, VPNs, NAC, firewall policy, or zero trust networking Datadog values people from all walks of life. We understand not everyone will meet all the above qualifications on day one. That's okay. If you’re passionate about technology and want to grow your skills, we encourage you to apply.    Benefits and Growth: * New hire stock equity (RSUs) and employee stock purchase plan (ESPP) * Continuous professional development, product training, and career pathing * Intradepartmental mentor and buddy program for in-house networking * An inclusive company culture, ability to join our Community Guilds (Datadog employee resource groups) * Access to Inclusion Talks, our Internal panel discussions * Free, global mental health benefits for employees and dependents age 6+ * Competitive global benefits Benefits and Growth listed above may vary based on the country of your employment and the nature of your employment with Datadog. ---------------------------------------------------------------------------------------------------------------------------------- About Datadog:  Datadog is the leading observability and security platform for the AI era, providing businesses with unified visibility across the technology stack to manage complexity at scale. It brings applications, infrastructure, data, models, and security into one place, using AI to detect and resolve issues before they impact customers. Trusted globally by Fortune 500 companies and high-growth AI leaders, Datadog enables businesses to move faster with clarity and confidence. Learn more about #DatadogLife on Instagram, LinkedIn, and Datadog Learning Center. ---------------------------------------------------------------------------------------------------------------------------------- Equal Opportunity at Datadog: Datadog is proud to offer equal employment opportunity to everyone regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, veteran status, and other characteristics protected by law. We also consider qualified applicants regardless of criminal histories, consistent with legal requirements. Here are our Candidate Legal Notices for your reference.  Datadog endeavors to make our Careers Page accessible to all users. If you would like to contact us regarding the accessibility of our website or need assistance completing the application process, please complete this form. This form is for accommodation requests only and cannot be used to inquire about the status of applications.  Privacy and AI Guidelines: Any information you submit to Datadog as part of your application will be processed in accordance with Datadog’s Applicant and Candidate Privacy Notice. For information on our AI policy, please visit Interviewing at Datadog AI Guidelines.