Security Engineer III

Anaplan; Greater London; On-site; GBP 90,000 - 130,000; Full time

Job summary

Anaplan is seeking a Security Engineer to join the Security Operations team in London. You will design, build, and improve capabilities for detecting, investigating, and responding to threats.

You’ll work at the intersection of engineering and operations to create scalable, automated security solutions. You will triage alerts, support incident investigations, contribute to SIEM engineering, and develop detections using a Detection as Code approach.

Qualifications

• Technical security experience in securing cloud-native environments and modern application stacks.
• Hands-on experience supporting security incident investigations, including evidence preservation, log and artifact analysis, timeline reconstruction, and root-cause identification.
• Practical experience developing and tuning SIEM detections, writing threat hunting queries, and participating in incident response activities.
• Hands-on knowledge of administering and operating core security operations tools, including SIEM platforms, EDR/XDR solutions, vulnerability scanners, and ticketing/case management systems.
• Experience with threat intelligence platforms and feeds, integrating intelligence into security tooling and detection logic.
• Proficiency in one or more scripting languages (e.g., Python, Go, Bash) to build tooling and automate workflows.
• Familiarity with secure development practices, OWASP top risks, and code reviews with developers.
• Working knowledge of security frameworks (e.g., NIST CSF, CIS Benchmarks, MITRE ATT&CK) and standards like SOC 2 or ISO 27001.
• Strong ability to communicate security risks and recommendations to technical and non-technical stakeholders.

Responsibilities

• Investigate and triage security alerts from across detection tooling, analyzing logs, endpoints, identity, cloud, and network telemetry.
• Support investigations and response to confirmed security incidents, applying DFIR skills across data sources.
• Contribute to engineering and maintenance of SIEM parsers, data pipelines, and platform performance.
• Develop and maintain a library of high-quality detections using Detection as Code and MITRE ATT&CK mappings.
• Explore and apply AI and machine learning to enhance detection, alert triage, and response workflows.
• Integrate threat intelligence into detection logic, playbooks, and hunting activities.
• Participate in proactive threat hunting to identify attacker activity and inform detection improvements.

Skills

Technical security experience

Incident response

Detection & response

SecOps tooling

Threat intelligence & hunting

Scripting & automation

Application security

Security frameworks & standards

Communication & collaboration

Job description

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 celebratingour 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 escape 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 technically capable security professional with hands‑on experience in security operations. The ideal candidate will possess:

• Technical Security Experience: commercial experience in a security operations role, with a solid grounding in securing cloud-native environments and modern application stacks.
• Incident Response & Digital Forensics: Hands‑on experience supporting security incident investigations, including evidence preservation, log and artifact analysis, timeline reconstruction, and root cause identification. Familiarity with forensic tooling and methodologies is highly sought after, as is experience contributing to post-incident reviews and translating findings into actionable improvements.
• Detection & Response Skills: Practical experience developing and tuning SIEM detections, writing threat hunting queries, and participating in incident response activities.
• SecOps Tooling: Hands‑on knowledge of administering and operating core security operations tools, including SIEM platforms, EDR/XDR solutions, vulnerability scanners, and ticketing or case management systems. Experience integrating these tools to support detection, investigation, and response workflows.
• Threat Intelligence & Threat Hunting: Experience working with threat intelligence platforms and feeds, and integrating intelligence into security tooling, detection logic, and operational processes. A working knowledge of threat hunting methodologies and the ability to proactively identify indicators of compromise or attacker behaviour across the environment is highly desirable.
• Scripting & Automation: Proficiency in one or more scripting or programming languages (e.g. Python, Go, Bash) to build security tooling, automate workflows, and integrate security capabilities.
• Application Security Knowledge: Familiarity with secure development practices, OWASP top risks, and the ability to perform code reviews or work with developers to remediate security findings.
• Security Frameworks & Standards: Working knowledge of relevant security frameworks (e.g. NIST CSF, CIS Benchmarks, MITRE ATT&CK) and compliance standards such as SOC 2 or ISO 27001.
• Communication & Collaboration: Strong ability to articulate technical security risks and recommendations to both technical and non‑technical stakeholders, and to work cross‑functionally to deliver security outcomes.

Our Commitment to Diversity, Equity, Inclusionand Belonging (DEIB)

We believe attracting and retaining the best talent and fostering an inclusive culture strengthens our business. DEIB improves our workforce, enhances trust with our partners and customers, and drives business success. Build your career in a place where diversity, equity, inclusion and belonging aren’t just words on paper – this is what drives our innovation, it’s how we connect, and it contributes to what makes us a market leader. We believe in a hiring and working environment where all people are respected and valued, regardless of gender identity or expression, sexual orientation, religion, ethnicity, age, neurodiversity, disability status, citizenship, or any other aspect which makes people unique. We hire you for who you are, and we want you to bring your authentic self to work every day!

We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, perform essential job functions, and receive equitable benefits and all privileges of employment. Please contact us to request accommodation.

Voluntary Self-Identification

For government reporting purposes, we ask candidates to respond to the below self-identification survey.Completion of the form is entirely voluntary. Whatever your decision, it will not be considered in the hiringprocess or thereafter. Any information that you do provide will be recorded and maintained in aconfidential file.

As set forth in Anaplan’s Equal Employment Opportunity policy,we do not discriminate on the basis of any protected group status under any applicable law.

If you believe you belong to any of the categories of protected veterans listed below, please indicate by making the appropriate selection.As a government contractor subject to the Vietnam Era Veterans Readjustment Assistance Act (VEVRAA), we request this information in order to measurethe effectiveness of the outreach and positive recruitment efforts we undertake pursuant to VEVRAA. Classification of protected categoriesis as follows:

A "disabled veteran" is one of the following: a veteran of the U.S. military, ground, naval or air service who is entitled to compensation (or who but for the receipt of military retired pay would be entitled to compensation) under laws administered by the Secretary of Veterans Affairs; or a person who was discharged or released from active duty because of a service‑connected disability.

A "recently separated veteran" means any veteran during the three-year period beginning on the date of such veteran's discharge or release from active duty in the U.S. military, ground, naval, or air service.

An "active duty wartime or campaign badge veteran" means a veteran who served on active duty in the U.S. military, ground, naval or air service during a war, or in a campaign or expedition for which a campaign badge has been authorized under the laws administered by the Department of Defense.

An "Armed forces service medal veteran" means a veteran who, while serving on active duty in the U.S. military, ground, naval or air service, participated in a United States military operation for which an Armed Forces service medal was awarded pursuant to Executive Order 12985.