IT Security Engineer owning identity, endpoint, email, and access controls. Protecting Alpaca’s global brokerage infrastructure and supporting security incident response.
Responsibilities
Own security standards and controls protecting workforce identities, endpoints, and critical business systems
Maintain security standards, measure control effectiveness, and partner with IT on device operations and administration
Define and maintain SSO and conditional-access standards across cloud, SaaS, and internal systems
Own phishing-resistant MFA standards and enforcement
Maintain privileged-access standards, approval policies, and periodic access reviews
Partner with IT and People teams on timely, complete, and auditable joiner, mover, and leaver access changes
Own endpoint detection and response policy and tuning
Maintain device-posture and secure network-access requirements
Measure identity and endpoint controls and follow up on gaps
Partner with Security Operations on detections and response playbooks
Maintain administrator-access security baselines for critical SaaS platforms and vendor accounts
Assess identity and account impacts of vendor security events
Own email authentication standards and email security configuration
Maintain company-domain security and monitor lookalike domains
Triage reported phishing and coordinate takedowns
Lead identity, endpoint, and email aspects of security incidents, including account containment
Participate in the Security Operations on-call rotation after onboarding and cross-training
Provide IT and employees with guidance on security requirements
Report to the Enterprise Security Architect and collaborate with IT, DevOps, Engineering, GRC, and the wider Security team
Requirements
Excited about Alpaca’s mission and what we’re building
3+ years of experience in IT security, identity security, or security engineering roles
Hands-on experience with an identity provider and SSO, including SAML and OIDC
Experience enforcing phishing-resistant MFA, such as FIDO2 or hardware security keys
Hands-on experience with an endpoint detection and response platform
Scripting or automation experience (Python, Bash, or PowerShell)
Experience with zero-trust network access or device-posture controls
Working knowledge of email authentication (SPF, DKIM, DMARC) and phishing response
Experience working closely with IT teams and translating security requirements into operational workflows
Experience investigating identity, endpoint, or email security alerts
Willing to participate in an on-call rotation
Strong written and verbal communication skills, especially during incidents
Comfortable working cross-functionally and handling escalations calmly and decisively
Experience securing financial, trading, or other highly regulated platforms
Familiarity with compliance frameworks such as SOC 2 or ISO 27001
Experience with just-in-time privileged access tools
Experience securing administrator access to SaaS platforms
Experience with password managers and secrets management at company scale
Experience with MDM platforms for macOS and Windows
Experience with cloud IAM in AWS, GCP, or Azure
Ability to balance security rigor with operational efficiency and business needs
Benefits
Competitive Salary & Stock Options
Health Benefits
New Hire Home-Office Setup: One-time USD $500
Monthly Stipend: USD $150 per month via a Brex Card
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