Auros
Principal Security Engineer
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Principal Security Engineer
Location: Remote (UK/Europe)
Reporting Line: Chief Risk Officer
About Auros
Auros is a global digital asset liquidity provider operating 24/7 across centralised and decentralised markets. We run high-availability, low-latency systems where resilience and risk discipline matter. Security is treated as a core engineering and risk function, with direct engagement from senior leadership.
The Role
We’re hiring a hands-on Principal Security Engineer to implement and operate security controls across our infrastructure. This is a technical execution role—you’ll be writing code, configuring systems, and shipping security improvements, not writing policies or managing people.
You’ll work closely with Infrastructure and Engineering teams to:
- Harden our cloud environments
- Secure our CI/CD pipelines
- Protect both corporate and production systems
The scope is broad, the environment is fast-paced, and you’ll be expected to own problems end-to-end.
We believe security should enable the business, not obstruct it. You’ll design controls that are effective but unobtrusive—security that works in the background without creating friction for engineers or traders.
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What You’ll Do
Security Workloads
- Implement and maintain security controls across:
- Multi-cloud environments (primarily AWS and Azure, with some GCP and AliCloud)
- On-prem infrastructure
- Own IAM strategy and implementation:
- Design and enforce identity, access, and permissions models that are secure, scalable, and practical
- Design and operate key management and custody security controls, including:
- HSMs (Hardware Security Modules)
- Secrets management
- Secure key handling for trading operations
- Harden CI/CD pipelines (GitLab) and secure the software delivery process
Operational Security
- Configure and operate corporate security tooling, including:
- Endpoint protection
- MDM/Jamf
- DLP (Data Loss Prevention)
- Identity management
- Respond to security incidents:
- Triage
- Investigate
- Contain
- Remediate
Assessment & Automation
- Conduct security assessments of infrastructure and applications
- Automate security operations:
- Detection
- Alerting
- Response
- Work with Infrastructure to embed security into:
- Cloud provisioning
- System configuration
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What We’re Looking For
- 8+ years of hands-on experience in security engineering or security operations
- Strong, opinionated views on IAM—you’ve designed and implemented identity and access management across cloud environments and have a clear philosophy on how it should work
- Strong working knowledge of cloud security controls across multiple providers (AWS and Azure preferred)
- Experience securing CI/CD platforms, with GitLab preferred
- Familiarity with corporate IT security tooling, including:
- Jamf
- Endpoint protection
- DLP
- SSO/IdP (Single Sign-On / Identity Provider)
- Comfortable in Linux environments and scripting (Python, Bash, or similar)
- Experience with infrastructure-as-code (Terraform, Pulumi, etc.) is a plus
- Exposure to financial services, crypto, or other regulated environments is a plus but not required
"We value demonstrated skills and practical experience over certifications."
What You Get
- Direct ownership of security implementation
- A small, technical team where your work has immediate impact
- Exposure to low-latency trading infrastructure and the digital asset space
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