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About the Role

The Senior Authentication Services Engineer is a skilled technical contributor within the Identity & Access Management organization, responsible for the engineering, implementation, and operational support of enterprise authentication platforms across a complex global environment. This hands-on role involves implementing authentication solutions, supporting integrations, and contributing to the evolution of authentication services aligned with the Zero Trust security strategy.

Responsibilities

• Engineer, configure, and maintain Microsoft Entra ID, Active Directory, and federated identity services.
• Implement and support SSO integrations (SAML, OIDC, OAuth 2.0) across SaaS, on-prem, and hybrid application portfolios.
• Configure and manage MFA policies, authentication method settings, and phishing-resistant credential rollouts (FIDO2, Windows Hello for Business, certificate-based auth).
• Develop, test, and maintain Conditional Access policies in alignment with security requirements.
• Contribute to authentication standards, patterns, and reference architectures.
• Participate in proof-of-concept efforts for emerging authentication technologies.
• Maintain and update technical documentation including runbooks, configuration records, and architecture diagrams.
• Support alignment of authentication controls with Zero Trust principles and enterprise security policies.
• Provide technical evidence, control narratives, and remediation support for audit and compliance activities.
• Identify and remediate gaps in authentication posture through engineering solutions.
• Monitor authentication platform health and respond to security incidents within the authentication domain.
• Support incident response and troubleshoot complex authentication issues as a technical escalation resource.
• Collaborate with application teams, infrastructure engineering, and security operations to deliver IAM solutions.
• Contribute to knowledge transfer, documentation, and team skill development.
• Participate in on-call rotation for authentication platform support.
• Comply with corporate policies, procedures, and security standards.
• Contribute to a strong Environmental Health and Safety (EHS) culture by following safety policies, identifying hazards, and engaging in continuous improvement.

Requirements

• High School Diploma and 8 years of experience in Information Technology, Computer Science, IAM Engineering, or Information Security in a private, public, government, or military environment.
• OR Bachelor's degree or higher and Six (6) years of experience in Information Technology, Computer Science, IAM Engineering, or Information Security, in a private, public, government, or military environment.
• Must be legally authorized to work in country of employment without sponsorship for employment visa status.

Skills

• Microsoft Entra ID (Conditional Access, PIM, application registrations, hybrid identity)
• Active Directory (domain architecture, Group Policy, trusts, Kerberos, NTLM, AD security hardening)
• MFA implementation (phishing-resistant methods like FIDO2, WHfB)
• Federation protocols (SAML 2.0, OIDC, OAuth 2.0)
• SSO integration support
• PowerShell scripting
• Microsoft Graph API
• Identity security tooling (e.g., Microsoft Defender for Identity, Entra ID Protection, SIEM integrations)
• Windows Hello for Business deployment planning
• FIDO2/YubiKey rollouts
• PAM platforms (e.g., CyberArk)
• IGA platforms and lifecycle event integration
• Cloud Identity (AWS IAM, Azure AD B2B/B2C, multi-cloud identity federation)
• SC-300, AZ-500, or equivalent Microsoft identity certifications (preferred)
• Experience working in large enterprise environments with complex hybrid identity architectures

Location

• Maplewood, MN (On-site)
• Austin, TX (On-site)

Work Type

• On-site (at least 4 days per week)
• Full-time

Experience Level

• Senior

Education Level

• High School Diploma
• Bachelor's degree

Salary/Compensations

• $145,676 - $178,049

Benefits

• Medical, Dental & Vision
• Health Savings Accounts
• Health Care & Dependent Care Flexible Spending Accounts
• Disability Benefits
• Life Insurance
• Voluntary Benefits
• Paid Absences
• Retirement Benefits

About the Company

• 3M is a place where you can collaborate with other curious, creative 3Mers.
• Learn more about 3M’s creative solutions to the world’s problems at www.3M.com or on Instagram, Facebook, and LinkedIn @3M.

Equal Opportunity

• 3M does not discriminate in hiring or employment on the basis of race, color, sex, national origin, religion, age, disability, veteran status, or any other characteristic protected by applicable law.