Cyber Defender (SOC Analyst) in City of London

As a leading provider of AI-powered extended managed detection and response (MXDR) services, Ontinue is on a mission to be the most trusted, 24/7, always-on security partner that empowers customers to embrace the future by using AI to operate more strategically, at scale, and with less risk. We believe that the combination of AI and human expertise is essential for delivering effective managed security that is tailored to a customer’s unique environment, operational constraints, and risks.

Our MXDR service combines powerful proprietary AI with a one-of-a-kind collaboration model to continuously build a deep understanding of our customers’ environments, informing how we prevent, detect, and respond to threats. Our unrivaled Microsoft expertise allows customers to achieve these outcomes with the Microsoft Security tools they already own. The result is highly localized managed protection that empowers security teams to be faster, smarter, and more cost efficient than ever before.

Your mission: At Ontinue, we’re building an environment where you can truly thrive. We foster collaboration, encourage cross-functional learning, and invest in your long-term growth—this is more than just a stepping stone, it’s a place to build your career. As a Cyber Defender, you’ll be at the forefront of our security operations, acting as a first responder to emerging threats. You’ll work across the full detection and response stack, from identity and endpoints to network and cloud, developing broad hands‑on experience in a fast‑paced environment.

In addition to day‑to‑day operations, you’ll contribute to improving our detection and response capabilities by collaborating with internal teams and supporting service enhancements. You’ll also play a key role in investigations, applying your expertise to analyse incidents, respond effectively, and help strengthen our overall security posture.

• Hands‑on experience detecting and responding to threats within a Cyber Defense Center (SOC), performing end‑to‑end investigations.
• A collaborative mindset, with a willingness to support and share knowledge with team members.
• Experience contributing to the development and improvement of internal processes and workflows.
• The ability to work cross‑functionally with different teams to drive continuous improvement and automation.
• Curiosity and a proactive approach to continuously developing your skills and capabilities.
• Flexibility to work within a Follow‑the‑Sun model, including on‑call support (covering off‑hours, weekends, and public holidays) as part of a global team.

• A degree in Information Security, Computer Science, or equivalent practical experience.
• 2+ years of experience in security operations, system administration, penetration testing, or a related field.
• Familiarity with security technologies such as EDR and SIEM platforms.
• Strong communication and interpersonal skills, with a self‑driven and reliable approach to work.
• Working knowledge of the Microsoft Security stack is a big plus.
• Relevant security certifications (e.g., CISSP, Security+, CySA+, or similar) are advantageous.
• Broad understanding of information security principles, with deeper knowledge in at least one of the following areas: Identity, Endpoint, Network, or Cloud.

We have been recognized as an outstanding place to work! On top of a competitive salary, we also offer an enhanced benefit package, flexible ‘me days’, annual subscription to Headspace and volunteer days. Come as you are! We search for amazing people of diverse backgrounds, experiences, abilities, and perspectives. Ontinue welcomes and encourages diversity in the workplace regardless of race, gender, religion, age, sexual orientation, disability, or veteran status.