Senior Manager, Security Architecture

Anaplan; Greater London; On-site; GBP 110,000 - 150,000; Full time

Job summary

Anaplan is building a formal security architecture practice, and this role leads it. You will turn security architecture into a deliberate, reusable asset for the company: reference architectures, identity and authorisation patterns, cryptography standards, and AI guardrail designs that become the natural, low‑friction path for engineering rather than a checkpoint to work around.

This is a people‑leadership role with deep technical scope, reporting to the Director of Product Security.

Qualifications

• Track record building or leading security architecture in SaaS/cloud-first environments.
• Deep architecture credibility: identity and authorisation, cryptography, secure-by-design, and threat modelling.
• Hands-on depth to challenge designs while staying technically credible.
• People leadership: hiring, coaching, calibrating a senior team, and making hard calls on performance.
• Experience aligning architecture to enterprise and regulated environments.

Responsibilities

• Define how architecture reviews work at Anaplan, what gets reviewed, when, by whom, and against which bar.
• Drive security reference architectures, identity/authorisation patterns, cryptography architecture, and AI guardrail design as living standards.
• Establish and maintain security engineering principles shaping platform building.
• Lead architecture and design reviews for major platform and AI changes.
• Engage with platform engineering on Hyperblock and Polaris to reflect how the platform works.
• Ensure security architecture meets enterprise and regulated environment demands by design.
• Turn architecture decisions into policy-as-code and enforce guardrails.
• Hire, coach, calibrate, and mentor the architecture team.

Skills

Security architecture leadership

SaaS/cloud architecture

Threat modelling

Identity and access management

People leadership

Regulated environments experience

Tools

Policy-as-code

Security standards

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.

Role Summary

Anaplan is building a formal security architecture practice, and this role leads it. You will turn security architecture into a deliberate, reusable asset for the company: reference architectures, identity and authorisation patterns, cryptography standards, and AI guardrail designs that become the natural, low‑friction path for engineering rather than a checkpoint to work around. This is a people‑leadership role with deep technical scope, reporting to the Director of Product Security. As Anaplan's AI capabilities and enterprise footprint grow, consistent and well‑reasoned architecture decisions matter more with every product that builds on them. You will own that surface, set the standards engineering builds against, and lead a senior team to make secure‑by‑design the default.

Responsibilities

• Lead the security architecture practice: define how architecture review works at Anaplan, what gets reviewed, when, by whom, and against which bar.
• Own the reusable patterns: drive security reference architectures, identity and authorisation patterns, cryptography architecture, and AI guardrail design as living standards that engineering adopts by default.
• Set security engineering principles: establish and maintain the standards that shape how the platform is built, and keep them legible and usable for engineers.
• Review the highest‑risk designs: lead architecture and design reviews for major platform and AI changes, early enough to influence them.
• Partner with platform engineering: engage directly on the Hyperblock and Polaris surface and the AI product line so architecture reflects how the platform genuinely works.
• Support compliance by design: ensure security architecture meets the demands of the enterprise and regulated environments Anaplan's customers operate in.
• Codify decisions into policy‑as‑code: turn architecture decisions into enforceable, version‑controlled guardrails wherever that reduces toil rather than adding it.
• Build and develop the team: hire, coach, calibrate, and mentor the architecture team, and hold a consistent technical bar.

Qualifications

• A track record building or leading security architecture in a SaaS or cloud‑first environment, with scope across multiple teams.
• Deep architecture credibility: identity and authorisation, cryptography, secure‑by‑design, and threat modelling at scale.
• Enough hands‑on depth to challenge weak designs on their merits; this is a security leader who stays technically credible, not purely managerial.
• People‑leadership judgement: hiring, coaching, calibrating a senior team, and making hard calls on performance.
• Experience aligning architecture to enterprise and regulated environments.
• A clear, non‑hyped view of how AI changes the architecture surface: identity, authorisation, supply‑chain integrity, and the need for guardrails.

Nice to have

• Working familiarity with AI security standards and references such as the NIST AI RMF, ISO 42001, MITRE ATLAS, or the OWASP LLM Top 10.
• Hands‑on experience with policy‑as‑code and turning standards into enforced controls.
• Contributions to security standards, frameworks, or industry practice.

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.

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.