{"id":2640813,"url":"https://alion.io/job/amazon-principal-security-engineer-sdo-appsec-emea","title":"Principal Security Engineer, SDO AppSec EMEA","company":{"id":19,"name":"Amazon","domain":"amazon.com","url":"https://alion.io/company/amazon","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Career site","truth_index":{"grade":"A","score":91,"open_postings":1107,"ghost_share":0,"stale_share":0.556,"repost_share":0.004,"time_to_fill_p50_days":15,"computed_at":"2026-10-16T05:45:00Z"}},"role":"Security","role_family":"Security","seniority":"lead","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["London, United Kingdom"],"countries":["GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":109000,"max_usd":191000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":20},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[],"status":"live","first_seen_at":"2026-03-10T00:00:00Z","employer_posted_date":"2026-10-15","last_verified_at":"2026-10-16T09:37:31Z","board_verified":true,"closed_at":null,"days_open":220,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":220},"description":"As a Principal Security Engineer in the Appstar organization, you lead application security reviews across complex systems, identify and advise on critical security risks, and mentor the broader security engineering team. You own security outcomes that reduce persistent risks and proactively shape organization-level security posture.\nYou are responsible for establishing and maintaining the enterprise-wide application security review methodology - including threat modelling philosophy, security testing standards, and remediation validation. You design security patterns and standards that serve as the foundation for secure development across all engineering organizations, with a focus on increasing automation of discoverable vulnerabilities and reducing manual security work for both builder and security teams.\nYou make critical architectural decisions for systems handling billions in revenue, evaluating high-risk design decisions and setting security standards for new technology adoption. You develop reusable architectural patterns that balance security requirements with business needs, and serve as the organization's risk management subject matter expert - making final determinations on high-risk issues and establishing risk acceptance processes at the VP and SVP level.\nThis role requires deep expertise in application security architecture, advanced threat modelling, and secure development practices, combined with strong business acumen to perform cost-benefit analyses and influence product roadmaps. You will regularly partner with VP and SVP-level leadership, lead security architecture working groups, and mentor other security engineers - driving security culture across the organization.\nKey job responsibilities\n- Establish and maintain application security review methodology, creating comprehensive frameworks that address various application types and risk levels used across Amazon's wide application landscape\n- Make security architecture decisions for Amazon's most critical application, evaluating high-risk design decisions and establishing security standards for new technology adoption\n- Execute application security reviews across complex applications and across organizations, proactively identifying critical security risks others may miss and providing actionable guidance on risk mitigation and remediation\n- Mentor security engineers and architects across the organization, leading security architecture working groups and creating security review playbooks, risk assessment frameworks, and architectural patterns that become organizational standards\n- Drive automation and AI-powered security solutions to scale security reviews, threat detection, and vulnerability management across the application portfolio to match the development pace of builders\nBasic qualifications\nExperience in security engineering, with significant experience in application security or a relevant domain\nExperience in Threat Modelling, Code Review, and Security Testing\nProven track record of driving security solutions at scale\nExperience leading technical security initiatives across multiple teams and stakeholders\nProven ability to influence senior technical leaders and build trust with security organizations\nPreferred qualifications\nBachelor’s degree in Computer Science, Engineering, or related field; Master's degree preferred \nExperience with AI/ML systems and their security implications and applications\nTrack record of building and deploying automated security solutions in large-scale environments \nHistory of contributions to security automation or tooling in the broader security community \nExperience driving adoption of new security technologies across large engineering organizations Amazon is an equal opportunities employer. We believe passionately that employing a diverse workforce is central to our success. We make recruiting decisions based on your experience and skills. We value your passion to discover, invent, simplify and build. Protecting your privacy and the security of your data is a longstanding top priority for Amazon. Please consult our Privacy Notice (https://www.amazon.jobs/en/privacy_page) to know more about how we collect, use and transfer the personal data of our candidates. Amazon is an equal opportunity employer and does not discriminate on the basis of protected veteran status, disability, or other legally protected status. Our inclusive culture empowers Amazonians to deliver the best results for our customers. If you have a disability and need a workplace accommodation or adjustment during the application and hiring process, including support for the interview or onboarding process, please visit https://amazon.jobs/content/en/how-we-hire/accommodations for more information. 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