Security Engineer III

At Anaplan, we are a team of innovators focused on optimizing business decision-making through our leading AI-infused scenario planning and analysis platform so our customers can outpace their competition and the market. What unites Anaplanners across teams and geographies is our collective commitment to our customers’ success and to our Winning Culture. Our customers rank among the who’s who in the Fortune 50. Coca-Cola, LinkedIn, Adobe, LVMH and Bayer are just a few of the 2,400+ global companies who rely on our best-in-class platform. Our Winning Culture is the engine that drives our teams of innovators. We champion diversity of thought and ideas, we behave like leaders regardless of title, we are committed to achieving ambitious goals, and we love celebrating our wins – big and small. Supported by operating principles of being strategy-led, values-based and disciplined in execution, you’ll be inspired, connected, developed and rewarded here. Everything that makes you unique is welcome; join us and let’s build what’s next - together! What you’ll be doing: As a Security Engineer within the Security Operations team, you will help design, build, and continuously improve the technical capabilities that underpin how we detect, investigate, and respond to threats. You will work at the intersection of engineering and operations — helping turn security problems into scalable, automated solutions. Your core responsibilities will be to: • Alert Investigation & Triage: Investigate and triage security alerts from across our detection tooling, analysing logs, endpoint, identity, cloud, and network telemetry to determine impact and root cause. Work alongside the wider SOC to escalate and resolve confirmed threats, document findings clearly, and feed what you learn back into detections, tuning, and automation. • Incident Response & DFIR: Support the investigation and response to confirmed security incidents, applying digital forensics and incident response skills across endpoint, cloud, and identity data. Help with evidence collection and preservation, timeline reconstruction, containment, and root cause analysis, and contribute to post-incident reviews that turn lessons learned into improved detections and tooling. • SIEM Engineering: Contribute to the engineering of our SIEM platform, including onboarding and normalising log sources, building and maintaining parsers, and supporting high-fidelity data pipelines that underpin detection and investigation. Help improve log coverage, data quality, and platform performance. • Detection Engineering: Help develop and maintain a library of high-quality detections using a Detection as Code methodology — working with version control, peer review, and automated testing pipelines. Map detections to the MITRE ATT&CK framework and contribute to improving coverage, precision, and resilience against evasion. • AI-Augmented Security Operations: Help explore and apply AI and machine learning to enhance security operations capabilities — including alert triage, incident response acceleration, threat intelligence analysis, threat hunting, and the enrichment and prioritisation of detection content. Contribute to evaluating emerging AI tooling and embedding it responsibly into team workflows. • Threat Intelligence Integration: Help consume and operationalise threat intelligence from internal and external sources, integrating indicators and adversary context into detection logic, response playbooks, and hunting activities. Work with threat intelligence feeds and platforms to support a timely and structured flow of actionable intelligence into security operations. • Threat Hunting: Take part in proactive, hypothesis-driven threat hunts across the environment to identify attacker activity that evades existing detections. Document and share findings in a structured way, using hunt outcomes to inform and improve detection engineering and tooling. What you’ll bring to the role: We are looking for a t