InfoSec Engineer

Valarian: A New Era of Sovereign Intelligence 

Valarian is a dual use technology company building critical tools to safeguard the future in an era of evolving global security challenges. Backed by a Series A funding round of $50m led by NEA, we are rethinking security beyond traditional military domains to address asymmetric threats that impact our technological advantage, economic strength, and democratic institutions. We provide the control infrastructure that allows government and regulated enterprise to put frontier-class AI to work safely.

We are bringing a frontier AI experience inside secure boundaries for the first time. Our technology supports mission critical workflows across government, healthcare, and enterprise, including:

• Scaling open-weight models without external inference endpoints.

• Putting frontier class AI to work across organisations through partnerships with other leading AI startups such as Perplexity. 

• Increasing operational resiliency for air gapped, on prem, and cloud based systems.

• Securing intellectual property and maintaining auditability for high stakes enterprise environments.

• Facilitating secure information flow during disaster response, M&A due diligence, and privileged legal communications.

We’ve only scratched the surface. Built in Britain by veterans of the Ministry of Defence, British Forces, Darktrace, and elite engineering backgrounds, we are driven by a shared mission to safeguard western democracy . Whether you join our London HQ or our wider global organisation, you’ll be part of a collaborative, high performing team creating the cutting edge software and infrastructure that defines the frontier of enterprise AI.

You will define and lead our security strategy with a strong focus on protecting our digital ecosystem, spanning cloud infrastructure, SaaS platforms, and internal tooling. You’ll be responsible for securing how our organisation operates day-to-day: from identity and access across SaaS tools, to cloud architecture, to data protection across systems.

This is a hands-on role combining strategy, architecture, and execution. You’ll work closely with Engineering, Product, Legal, and Leadership to embed security into everything we build, while evolving our compliance posture across ISO-27001 and SOC-2 (including expansion into additional controls).

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  Own and execute Valarian’s end-to-end information security strategy

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  Lead and mature our security posture across compliance frameworks, including ISO-27001, SOC 2, and expansion into additional control frameworks

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  Design and implement scalable security architecture across cloud, infrastructure, and applications

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  Partner with Engineering to embed secure-by-design principles into development workflows

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  Build, manage, and continuously improve security policies, standards, and controls

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  Lead risk management, threat modeling, and vulnerability management processes

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  Oversee incident detection, response, and recovery planning

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  Drive security awareness and training across the company

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  Establish and manage identity and access management (IAM), SSO, and device security across the organisation

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  Manage audits, certifications, and relationships with external assessors

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  Establish metrics and reporting to provide visibility into security posture and risk

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  Hire, develop, and lead a high-performing security team as the company grows

• Proven experience with information security in a cloud-first, SaaS-heavy environment

• Deep expertise in securing cloud infrastructure and modern workplace tooling

• Strong hands-on experience with identity and access management, SSO, and zero-trust approaches

• Experience managing and securing a broad ecosystem, including vendor risk and access governance

• Practical experience with SOC 2 and ISO-27001

• Strong understanding of cloud security principles (networking, IAM, secrets management, logging, monitoring)

• Experience implementing security tooling such as SIEM, EDR, and CSPM security platforms

• Track record of building scalable, pragmatic security programs in high-growth environments

• Ability to balance strong security practices with usability and business velocity

• Excellent stakeholder management and communication skills across teams

• Experience building or scaling security teams (or readiness to do so)

• A focus on real-world risk reduction over checkbox compliance