DevSecOps 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
Join us as a DevSecOps Engineer and help us build the future of data sovereignty. We're seeking a DevSecOps Engineer passionate about creating high-performance, secure, scalable, and reliable services for our production infrastructure and security. You'll have a direct impact, improving existing systems and developing innovative solutions to complex challenges.
Our small, collaborative engineering teams own the full lifecycle of their services, from development to production operations. We champion automation and empower you to choose the best tools for the job. If you thrive in a fast-paced environment where you can make a real difference, we want to hear from you!
What you’ll do:
Develop and implement a comprehensive observability strategy for self-hosted deployments, including infrastructure and tooling for monitoring, alerting, and troubleshooting. This will involve designing and implementing robust metrics and logging systems.
Engineer the Acra platform for high availability and fault tolerance. This includes ensuring resilience against Cloud Availability Zone outages and the ability to gracefully handle node failures.
Guarantee 99.9% uptime for the platform's control plane and deployment management. Design and implement a disaster recovery plan with active/passive deployments and seamless failover capabilities.
Architect and implement a highly available deployment setup for applications within the Acra platform. This will involve designing and building the infrastructure and processes necessary for continuous operation.
Create and maintain robust backup and recovery strategies for all Valarian products, ensuring data integrity and minimal downtime in the event of a failure.
Integrate and manage an incident detection and paging solution to ensure rapid response to critical issues and minimize service disruptions.
Scale the Acra platform and applications to support large concurrent user bases (25+ users) and sustained daily usage. This will involve performance tuning, capacity planning, and optimization of resource utilization.
Collaborate closely with the product engineering team to influence the design and implementation of new products and features, ensuring they meet our reliability and scalability standards from the outset.
What we are looking for:
Proficiency with programming languages like Go, Bash, Python.
Deep experience with Kubernetes security: RBAC, PodSecurityPolicies (or their replacements), Admission Controllers, and Kubernetes network policies.
Proficiency in secure networking practices, including TLS, mutual TLS (mTLS), ingress/egress controls, and VPN tunneling configurations.
Proven experience operating and securing service mesh technologies (e.g., Istio, Linkerd, or Consul Connect).
Hands-on experience with HashiCorp Vault in production, including dynamic secrets engines, auth backends, and policy design.
Practical knowledge of HAProxy or equivalent reverse proxies/load balancers, with experience configuring L4/L7 security protections.
Familiarity with CVE triage workflows and integrating vulnerability scanners into CI/CD and registry workflows.
Exposure to runtime security tooling (e.g., Falco, eBPF-based monitoring) and familiarity with basic incident response workflows.
Comfort representing engineering in external calls with auditors, pentesters, and security vendors; able to explain infrastructure decisions in security terms.
Nice to have:
Familiarity with compliance standards (SOC 2, ISO 27001, etc.) and cloud security postures in AWS, Azure, or GCP would be preferable but not essential.
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.