Principal Authentication Services Engineer

Job Description: Principal Authentication Services Engineer   Collaborate with Innovative 3Mers Around the World Choosing where to start and grow your career has a major impact on your professional and personal life, so it’s equally important you know that the company that you choose to work at, and its leaders, will support and guide you. With a wide variety of people, global locations, technologies and products, 3M is a place where you can collaborate with other curious, creative 3Mers.   This position provides an opportunity to transition from other private, public, government or military experience to a 3M career.   Your Skills and Expertise  The Principal Authentication Services Engineer is a senior technical leader and subject matter expert within the Identity & Access Management organization. This role owns the architecture, engineering, and lifecycle management of enterprise authentication platforms across a complex global environment -- and plays a meaningful role in shaping the IAM authentication roadmap, org-wide standards, and how authentication capabilities evolve alongside the broader Zero Trust security strategy. Authentication Platform Engineering & Architecture • Own the engineering design, implementation, and operational health of Microsoft Entra ID, Active Directory, and federated identity services across the enterprise • Architect and maintain SSO integrations (SAML, OIDC, OAuth 2.0) across SaaS, on-prem, and hybrid application portfolios • Engineer and manage MFA policies, authentication method configurations, and phishing-resistant credential adoption (FIDO2, Windows Hello for Business, certificate-based auth) • Lead Conditional Access policy development, testing, and lifecycle governance • Define authentication standards, patterns, and reference architectures for new and existing applications -- and own keeping them current • Evaluate emerging authentication technologies and drive proof-of-concept efforts that inform roadmap decisions • Maintain technical documentation including architecture diagrams, decision records, and runbooks   Security & Compliance • Partner with Security Architecture to align authentication controls with Zero Trust principles and enterprise security policy • Support audit and compliance activities by providing technical evidence, control narratives, and remediation guidance • Identify gaps in authentication posture and lead engineering remediation efforts   Collaboration & Leadership • Serve as escalation point for complex authentication incidents and engineering challenges • Mentor and uplift mid-level engineers on the Authentication Services team • Engage with application teams, infrastructure engineering, and security operations as a trusted IAM authority.   Skills and Expertise To set you up for success in this role from day one, 3M requires (at a minimum) the following qualifications: • Bachelor’s degree or higher (completed and verified prior to start) • Eight (8) years of experience designing, deploying, and managing enterprise Identity and Access Management (IAM) authentication solutions (e.g., Entra ID, Ping Identity, Active Directory) in a private, public, government or military environment • Five (5) years of experience working with modern authentication protocols, including SAML, OAuth 2.0, OpenID Connect (OIDC), and FIDO2 in a private, public, government or military environment • Five (5) years of experience leading complex architectural initiatives, conditional access hardening, or Zero Trust security programs in a private, public, government or military environment   Location • Maplewood, MN or Austin, TX (Hybrid – at least 3 days per week onsite) Travel: May include up to 10% Relocation Assistance: May be authorized   Must be legally authori