InfoSec Engineer
Valarian · London · hybrid
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.
The Role
As Head of Information Security at Valarian, 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 leadership 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).
What you’ll do:
Own and execute Valarian’s end-to-end information security strategy
Lead and mature our security posture across compliance frameworks, including ISO-27001, SOC 2, and expansion into additional control frameworks
Design and implement scalable security architecture across cloud, infrastructure, and applications
Partner with Engineering to embed secure-by-design principles into development workflows
Build, manage, and continuously improve security policies, standards, and controls
Lead risk management, threat modeling, and vulnerability management processes
Oversee incident detection, response, and recovery planning
Drive security awareness and training across the company
Establish and manage identity and access management (IAM), SSO, and device security across the organisation
Manage audits, certifications, and relationships with external assessors
Establish metrics and reporting to provide visibility into security posture and risk
Hire, develop, and lead a high-performing security team as the company grows
What you’ll bring:
Proven experience leading 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
Benefits
Our benefits are designed to ensure our employees feel taken care of and are proud to be a part of the Valarian team. We are committed to consistently enhancing our benefit package, taking into account the overall well-being and needs of our teammates. Here are the key benefits accessible to all employees at Valarian Technologies:
Equity – because you have the right to own what you’re building
A competitive salary – because we value your unique skills
Employer pension contributions – because you deserve a secure future
Private health insurance - because your health is important to us
Hybrid work setup – because everyone has different needs
Gym memberships - because staying active fuels productivity
Rewarding company retreats and meetups that respect your work/life balance – because we love getting to know each other
Life at Valarian
Our culture is built on inclusivity, compassion and flexibility – we want everyone to be empowered to achieve their goals at Valarian.
The work we do is vital, but so are the connections that make it happen. We thrive on the shared energy, spontaneous conversations, and mutual trust built when we spend time together. We operate on an office first hybrid model, regularly gathering in our London office to support one another and collaborate.
Valarian Technologies Limited is an equal opportunity employer and welcomes applications from invdividuals regardless of race, colour, religion, sex, sexual orientation, gender, identity or expression, national origin, age, disability, genetic information, marital status, veteran, amnesty, or any other legally protected characteristic.
We are committed to ensuring a fair and inclusive recruitment process and providing employment opportunities to all applicants. Decision recruitment, hiring, and employment are based solely on qualifications, skills, and experience relevant to the job requirements.
We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analysing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgement. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.