Security Architect, Identity and Access Management

Position Details 

The Information Security team protects all of Grainger, from our systems to our data across the global company. Our infrastructure is powered by cloud, on-premises, and SaaS platforms that keep Grainger, and our customers, working. We use modern tools and practices to stay ahead of evolving security challenges. 

The mission of the Security Architecture team is to be the strategic security design partner for Grainger’s technology systems. As the security architect responsible for Grainger’s identity ecosystem, you will be responsible for architecting, advising on, and governing how every human, machine, workload, and AI agent authenticates and is authorized across our cloud, SaaS, on-premises, and operational technology environments. This role owns the architecture spanning workforce identity, customer identity, privileged access, non-human and machine identity, secrets, and certificate lifecycle management. 

Grainger’s identity landscape is broad: hybrid workforce directory and federation services, a distinct customer identity estate supporting global eCommerce, a rapidly expanding population of workload and machine identities across cloud and SaaS, an emerging portfolio of AI and agentic platforms, and a substantial operational technology footprint.  

You  will support the progressive needs of the business and provide timely, secure and cost-efficient solutions that elevate the company’s identity security strategy. You will identity security architect will set multi-year identity strategy and reference architecture, rationalize a broad and overlapping portfolio of identity technologies into a defensible target state, and build the stakeholder alignment required to execute it. Success here depends as much on understanding why the business operates the way it does as on the depth of the technical design. You will be expected to translate business context into identity requirements and identity risk into business impact. 

In this individual contributor role, you will report to the Director of Cybersecurity Architecture and may be based remotely or at our offices in the Chicago area. 

This position is not eligible for any form of sponsorship now or in the future.  Individuals requiring sponsorship (e.g. OPT or H1B visa status) should not apply. Only individuals authorized to work in the United States now and for the foreseeable future will be considered for this position.

You will

• Own the enterprise identity security architecture and multi-year strategy across workforce, customer, third-party, privileged, machine, workload, and AI agent identities, spanning cloud, SaaS, on-premises, and OT 

• Translate business context into identity requirements, sequencing, and investment priorities in partnership with various business leaders 

• Lead identity technology rationalization: capability mapping, target-state platform selection, consolidation and retirement options, and proof-of-value evaluations 

• Serve as the identity design authority in Grainger’s architecture governance process, engaging early enough to shape design decisions 

• Produce reference architectures and reusable authentication, authorization, federation, and entitlement patterns, and threat model identity designs with delivery teams 

• Architect non-human identity at scale across issuance, attestation, rotation, and decommissioning 

• Define authentication and authorization for AI and agentic systems, including OAuth 2.0/2.1 flows, token exchange, delegated authority, short-lived credentials, and identity enforcement at MCP and AI gateways 

• Partner with machine learning and platform engineering on agent identity, agent-to-agent authorization, and downstream data access as AI moves into production 

• Set the target architecture for OT/ICS identity, including IT/OT identity separation and vendor remote access under known OT/ICS constraints 

• Advance customer identity architecture for digital commerce, including federation, authorization models, token security, and migration off legacy identity solutions 

• Define privileged access and cryptographic identity architecture, advancing just-in-time and zero standing privilege, certificate lifecycle automation, mTLS, and secrets management 

• Develop and enforce identity security standards and baselines aligned to NIST SP 800-63, NIST SP 800-207, NIST CSF, CIS Benchmarks, and IEC 62443 

• Partner with detection and response teams on identity threat detection coverage, attack path mapping, and identity telemetry into the SIEM/SOAR platform 

• Communicate identity posture and program progress to leadership through relevant metrics and KPIs 

• Mentor peers and junior architects through design reviews, pattern development, and knowledge sharing 

You have

• Deep expertise designing enterprise identity architectures for large, complex organizations, with ownership of the strategy and target state rather than platform administration or technology engineering 

• 10+ years in information security or identity engineering, including 8+ years in security architecture with at least 6 years focused on identity 

• Bachelor’s degree preferred; equivalent professional experience accepted 

• Preferred certifications: CISSP, CCSP, SABSA, IDPro CIDPRO, or vendor identity certifications

• Proven ability to align senior technology and business stakeholders behind multi-year identity direction amid competing priorities 

• Experience rationalizing overlapping identity portfolios: capability mapping, build/buy/consolidate analysis, and migration strategy 

• Expert understanding of OAuth 2.0/2.1, OIDC, SAML, SCIM, JWT, mTLS, token exchange, PKCE, and FIDO2/WebAuthn, including their common implementation failure modes 

• Deep experience with workforce and customer identity platforms in hybrid environments (e.g., Okta, Microsoft Entra ID, Auth0, etc), Active Directory, conditional access, and passwordless authentication 

• Strong cloud identity skills in AWS-primary environments: IAM policy and SCP design, permission boundaries, role assumption, and entitlements at scale 

• Specialized expertise in non-human and machine identity: workload identity, secrets management, certificate lifecycle and PKI (e.g., Venafi, AWS Certificate Manager), and service mesh identity (e.g., Istio, SPIFFE) 

• Working knowledge of AI and agentic identity: agent authentication patterns, delegated authority, scope minimization, MCP and AI gateway security, and frameworks such as the OWASP Top 10 for LLM Applications, MITRE ATLAS, and the NIST AI RMF 

• Experience with IGA and PAM platforms (e.g., SailPoint, Saviynt, CyberArk): entitlement modeling, access certification, credential vaulting, and just-in-time cloud access 

• Substantive understanding of OT/ICS identity, including shared operator accounts, vendor remote access, IT/OT identity separation, and IEC 62443 zone and conduit concepts 

• Familiarity with identity threat detection and response , attack path analysis, and identity enforcement at edge and API layers

• Strong communication skills, including the ability to translate technical concepts for executives and defend architectural positions with evidence