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About the Role
The Lead IT Security Administrator is a senior individual contributor responsible for designing, implementing, and optimizing the organization's end-user, endpoint, cloud infrastructure, and networking systems. This role focuses on high-level hands-on engineering, ensuring the reliability and scalability of our technology stack through robust system design, advanced CI/CD management, and automated operations. Partnering as a technical expert with the Engineering teams, the Lead IT Security Administrator drives the evolution of our cloud-native environment, manages critical Juniper networking hardware, and develops sophisticated automation scripts to streamline deployment pipelines and enhance overall system performance.
Responsibilities
- Manage the Juniper/Junos estate end-to-end (routers, switches, firewalls), plus secure hybrid architecture: VPNs, VPCs, Interconnect
- Manage Ubuntu server fleet, including hardened baselines, automated patching via Canonical Landscape, and drift elimination through Salt/Ansible/Terraform
- Oversee security operations including EDR, SIEM, email security, and identity (SSO/MFA/PAM), from detection tuning through triage, access reviews, and incident root cause analysis
- Manage cloud environments (AWS, GCP, and Azure) with a focus on networking, IAM, and security configuration; review Terraform to validate changes
- Handle production incident resolution, observability and runbooks, managed RDBMS provisioning and upgrades, and tested backup/restore for Kubernetes & databases
- Develop Python and Bash tooling and API-driven SaaS integration to permanently remove manual work
- Provide technical leadership, including Tier-3 escalation, mentorship, and establishing security standards across the organization
Requirements
- Deep hands-on experience with Junos and enterprise network architecture
- Proven Linux fleet management experience, including patching, hardening, and compliance reporting at scale
- Fluency with at least one of Salt, Ansible, or Terraform; proficiency in more is advantageous
- Strong identity and access management background: SSO, MFA, RBAC, privileged access
- Practical cloud security experience in AWS, GCP, or Azure
- Python/Bash automation skills applied to real operational problems
- Experience investigating alerts and conducting incident response
- Familiarity with SOC 2, ISO 27001, NIST CSF, or CIS Controls
- Clear communicator capable of explaining technical risk to non-technical stakeholders
- Ability to quickly learn unfamiliar technology and take ownership through to resolution
Skills
- Junos
- Enterprise network architecture
- Linux fleet management
- Salt
- Ansible
- Terraform
- Identity and Access Management (IAM)
- SSO
- MFA
- RBAC
- Privileged access management
- Cloud security (AWS, GCP, Azure)
- Python
- Bash
- Incident response
- SOC 2
- ISO 27001
- NIST CSF
- CIS Controls
- CI/CD troubleshooting
- GitHub Actions
- Azure DevOps
- CircleCI
- AI-assisted monitoring
- Log analysis
Location
- New York City
- London
- Zurich
- Budapest
- Hong Kong
- Sydney
Work Type
- Full-time
Experience Level
- Senior
Salary/Compensations
- $160,000—$185,000 USD
Benefits
- Comprehensive benefits package
- Health and insurance benefits (medical, dental, vision may be included)
- Flexible working models
About the Company
- Digital Asset builds technologies reshaping financial markets with the mission to create the world’s most trusted, privacy-enabled, and interoperable digital infrastructure for global finance.
- The Canton Network is a blockchain purpose-built for institutional finance, combining privacy, compliance, and scalability for real-time, secure settlement across multiple asset classes.
- Founded in 2014 and headquartered in New York City, with offices globally.
- The company is transforming finance, with this transformation playing out rapidly on the Canton Network.
Equal Opportunity
- Digital Asset is an equal opportunity employer committed to ensuring equal employment opportunity without regard to race, color, national origin, sex, religion, sexual orientation, age, disability, citizenship status, veteran status, or any other basis protected by applicable law.
- All qualified applicants will receive consideration for employment without regard to race, color, national origin, sex, religion, sexual orientation, age, disability, citizenship status, veteran status, or any other basis protected by applicable law.