Identity Security Engineer — Cloud & On-Prem SSO Expert

Millennium Management LLC; Miami (FL); On-site; USD 120,000 - 170,000; Full time

Job summary

Millennium Management LLC in Miami, FL seeks an Identity Security Engineer to design and implement authentication platforms across on-premises and cloud environments. You will advise on identity controls and contribute to building secure, scalable identity infrastructure.

Responsibilities include managing SAML, OpenID Connect, OAuth 2.0, Kerberos, and PKI, performing threat analyses, and shaping the identity security roadmap with cross‑functional partners.

Qualifications

• 5+ years of relevant technical experience in information security.
• 3+ years focused on information security in financial services or similar.
• Experience with PingFederate and Entra ID.
• Experience managing IaaS and SaaS through CI/CD pipelines.
• Knowledge of modern authentication protocols and identity security controls.
• Experience with Microsoft 365 security controls and data protection (Azure Information Protection).
• Familiarity with EDR, SIEM and regulatory compliance is a plus.

Responsibilities

• Provide security consulting and engineering for identity security solutions across on-prem and cloud.
• Design and maintain authentication platforms across environments.
• Engineer and support SAML, OpenID Connect, OAuth 2.0, and Kerberos authentication.
• Assess identity management risks and produce threat analyses and remediation plans.
• Evaluate emerging identity security technologies and inform roadmap.
• Support security incidents including containment and post-incident hardening.
• Collaborate with stakeholders to enforce identity and access security policies.
• Transition security solutions to production and automate workflows via scripting.

Skills

Information security

Identity security

Threat modeling / risk assessment

Education

Bachelor’s degree in Computer Science, Engineering, or related field

Tools

PingFederate

Entra ID

CI/CD pipelines

Azure Information Protection

EDR

SIEM

Job description

Millennium Management LLC in Miami, FL seeks an Identity Security Engineer to design and implement authentication platforms across on-premises and cloud environments. You will advise on identity controls and contribute to building secure, scalable identity infrastructure.

Responsibilities include managing SAML, OpenID Connect, OAuth 2.0, Kerberos, and PKI, performing threat analyses, and shaping the identity security roadmap with cross‑functional partners.