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Aaron Rapport
Aaron Rapport, headshot

identity & security engineering leader

Aaron Rapport

I lead identity engineering for one of the world’s largest retailers: 425,000 employees, over 100 million customers, and every machine, workload and AI agent in between.

I build the teams and systems that decide who, and what, gets in: workforce, customer, vendor, workload, and now the AI agents acting on their behalf. Show me a difficult problem and I’ll show you the art of the possible.

Cincinnati, OH

CISSP, ISC2InfraGardCincinnati ISSA2026 Queen City Con organizerFMI Future Leader 2023VMware Explore 2022 speaker

impact

Selected impact

Moved thousands of business-critical apps onto modern authentication in a little over two years.

I directed a 100+ person, multi-team program that brought custom and off-the-shelf applications across 20+ brands onto modern, safe and secure standards-based auth (SAML, OIDC, SCIM), on time and without unscheduled business outages. The work spanned standard migrations, custom shims and full secure code rewrites, delivered by a global team on a follow-the-sun support model.

  • SAML
  • OIDC
  • SCIM
  • Program leadership

Upgraded and replaced the identity platforms behind 425,000 workers, 100,000+ vendor users, and 140 million customers.

I led and contributed to the architecture that consolidated multiple legacy identity providers into two cloud-native platforms, inside union agreements and strict compliance rules. We then replaced an aging, risky vendor authentication solution serving over 100,000 users with complex regulatory MFA requirements. Now I’m leading the ground-up rebuild of the consumer platform with passkeys, built-in fraud and bot defense, and industry-leading, standards-compliant design.

  • Workforce IAM
  • CIAM
  • Passkeys
  • Architecture

Put 100,000+ managed devices in frontline hands in months, during COVID.

I engineered enterprise-wide delivery, directed the mobile platform’s security architecture and rollout, and led a SCEP certificate proxy that turned multiple 35-second per-app logins into one device login for 400,000 associates.

  • Mobility
  • Zero trust
  • SCEP
  • Crisis delivery

Own how machines and AI agents prove who they are.

I run non-human and agentic identity across the customer and workforce estates: workload identity (SPIFFE/SPIRE), token exchange, MCP authorization, and the guardrails and training that let teams use agentic AI without handing it the keys. My architecture and our team made a safe, one-click process possible for managing agentic identities from creation to retirement.

  • Non-human identity
  • Agentic AI
  • SPIFFE/SPIRE
  • MCP

In their words

speaking

Talks and community

I co-founded Cannon Fodder Security, the 501(c)(3) behind Queen City Con, Cincinnati's security conference. Each year it hosts over a dozen hands-on, self-hosted labs, 50+ talks and 10 breakout communities for 600+ attendees. I sit on the board, wear many hats, and currently serve as VP of Treasury.

experience

Where I've worked

The Kroger Co.

Cincinnati, OH · October 2018 to present

Senior Advanced IT Security Engineering ManagerNow

September 2022 to present

I lead identity engineering for one of the world’s largest retailers: workforce IAM (425,000+ associates and 25,000+ contingent workers), customer identity (140M+ registered users, 20M+ monthly active), external vendor identity (125,000 identities) and identity governance, on a multimillion-dollar capital and operating budget.

  • I lead a team of roughly 40 spanning workforce IAM, customer identity, vendor identity, directory services, PAM and identity governance: full-time engineers plus global contractors and flex specialists, with a manager, a domain lead and three tech leads reporting to me. I grew the function from a team of 7, hiring 15 engineers and 100+ contractors.
  • I directed a 100+ person, multi-team program that modernized thousands of business-critical and custom applications to standards-based authentication in two years.
  • I architected the consolidation of multiple legacy identity providers into two modern, cloud-native platforms across 20+ enterprise brands, working inside union agreements and strict workforce-compliance requirements.
  • I’m leading the ground-up rebuild of the consumer identity platform, with built-in fraud and bot defense and passkey/WebAuthn support the legacy platform could not offer.
  • I own non-human and agentic identity across the consumer and workforce estates, and built the guardrails and training that let teams adopt agentic AI safely, including a one-click process that manages agent identities from creation to retirement.
  • Leadership
  • IAM
  • IGA
  • PAM
  • SSO
  • Entra ID
  • Okta
  • Ping Identity
  • DaVinci orchestration
  • SailPoint
  • FIDO2 / passkeys
  • SCIM
  • SPIFFE/SPIRE
  • Non-human & agentic identity

Sr. Engineer / Architect, Associate Mobility Platform Solutions

October 2019 to September 2022

I was the principal technical authority for mobility security and the associate mobility platform.

  • I directed the architecture and rollout of 100,000+ managed mobile devices in a 12-month window to keep the business running through the COVID-19 pandemic: a zero-to-one platform on a hard deadline.
  • I directed the development and Tier-1 vendor partnership behind a SCEP certificate proxy that replaced per-app logins (35+ seconds per app per session on shared devices) with a single device login for 400,000+ associates, with ring deployments across 50+ app platforms.
  • I designed and oversaw a replacement for the vendor’s Workspace ONE launcher: a custom associate-first platform with zero-trust controls and low-friction login, from idea to production.
  • Android
  • iOS
  • MDM / UEM
  • SCEP
  • Cert Proxy
  • Zero Trust
  • Kotlin
  • Java
  • Workspace ONE
  • Product leadership

Senior Infrastructure Engineer

October 2018 to October 2019

I rescued a critically delayed, over-budget Windows 10 migration.

  • I restructured the deployment methodology for a migration spanning 2,400+ physical locations and landed the program on time.
  • Windows
  • PowerShell
  • .NET
  • Automation
  • Large-scale rollout
  • Security

Stealth authentication startup

2026 to present

Co-Founder

Pre-seed, venture-track company building authentication technology for frontline and deskless workforces, alongside four other founders and an international consultant.

  • I own product architecture and the technical roadmap: credential model, lifecycle and supersession logic, hardware tiering, and authentication assurance levels aligned to NIST SP 800-63B.
  • I drive intellectual-property strategy, from conception and disclosure history to invention assignment and patent positioning.
  • Founder
  • Authentication
  • NIST SP 800-63B
  • Product architecture
  • IP strategy

CBTS

Cincinnati, OH · April 2018 to October 2018

Enterprise Infrastructure Systems Automation Engineer II

Contract engagement at The Kroger Co.

  • I partnered with executive leadership and enterprise engineering to architect and stabilize a large-scale operating system migration, recovering timeline confidence on a program at risk.
  • Systems engineering
  • Infrastructure
  • Automation
  • Windows
  • Mac

Dealer Tire, LLC

Cleveland, OH · August 2015 to March 2018

IT Customer Support Specialist

  • I ran level 1 through level 3 support across a mixed-OS environment in a lean organization, and the project work alongside it is where I built my engineering foundation.
  • Endpoint security
  • SIEM
  • Anti-malware
  • Incident response
  • AirWatch
  • Customer support

Grafix

Maple Heights, OH · 2012 to 2015

IT Business Systems Support Specialist

  • I directed end-to-end modernization of company IT across servers, networks, CRM and ERP for a 30-person business, acting as the entire technology function.
  • Windows
  • Server management
  • Networking
  • ERP
  • CRM
  • SMB

community

Community leadership

Cannon Fodder Security Inc. (Queen City Con)

Cincinnati, OH · October 2019 to present

Co-Founder & VP Treasury, Board of Directors

I co-founded and bootstrapped a 501(c)(3) from concept to operating organization: a regional cybersecurity institution dedicated to developing the next generation of security talent.

  • As one of three co-founders, I helped build it from an idea: bringing the founders together, filing the non-profit incorporation and leading the grassroots effort to get off the ground.
  • I direct strategy, logistics and execution for Queen City Con, which grew from a handful of virtual volunteers during COVID to 300 attendees at the first in-person event in 2023 and 600+ in 2025.
  • I help host its Wellness Village, which encourages work-life balance and building the skills to stay healthy at work.
  • I hold fiduciary responsibility for the organization’s finances, sponsorship revenue and nonprofit compliance as VP of Treasury on the board of directors.
  • 501(c)(3)
  • Non-profit
  • Board
  • Treasury
  • Conference
  • Community

Also: System Admin Advisor, Shaarey Tikvah (2020) · Youth Advisor, BBYO (2013 to 2018)

projects

Projects and research

Work outside the day job, mostly on how machines and agents authenticate. Write-ups land here as they're ready to share.

Non-human identity authentication: training guide and gap analysis

shipped

A training guide and market gap analysis on agentic non-human identity: workload identity issuance and attestation, where SPIFFE semantics break down at smaller scale, and Shared Signals Framework receiver tooling as an open-source wedge.

  • NHI
  • SPIFFE
  • Shared Signals Framework
  • Agentic identity

Heterogeneous compute fleet

in progress

A twelve-node compute fleet with nine enforced network segments, a single routing and policy enforcement point, and architecture decision records with provenance tagging.

  • Network segmentation
  • ADRs
  • Infrastructure

Admission control service (Rust)

in progress

Atomic fit-check-and-reserve against live device telemetry, so a workload is never admitted against capacity that is not there. The admission core of a GPU-agnostic router for LLM workloads across iGPU, Intel, AMD and NVIDIA. Specified, architected and reviewed by me; built by directing agentic coding workers.

  • Rust
  • Admission control
  • Agentic development

Autonomous ops agent security sandbox

shipped

Egress denial enforced at three independent layers, an explicit execution gate for privileged operations, a hard denylist for irreversible actions, and full session transcripts committed to version control. Delegated, action-scoped, time-bound agent authorization with full attribution and no shared credentials.

  • Agent authorization
  • Egress control
  • Auditability

skills

What I work with

Identity & access
IAM · IGA · PAM · SSO (SAML, OIDC, OAuth) · FIDO2 / passkeys · SCIM · Active Directory · Entra ID · Okta · Ping · SailPoint · Akeyless · Digital identity · Decentralized identity (DID)
Non-human & agentic identity
SPIFFE/SPIRE · Shared Signals Framework · Agent authorization · Entra Agent ID · MCP authorization · OAuth token exchange
Leadership
Team building and hiring · Mentorship · Crisis management · Large distributed teams · Budget and capital planning · Vendor management and negotiation · Follow-the-sun operations · Restructuring and modernization · Strategy · Product-led agile · Mergers, acquisitions and divestitures
Architecture & delivery
Large, scalable solutions · Zero trust · MDM/UEM · Agile · Product-first delivery · Oversight and standards · Compliance (SOX, HITRUST, HIPAA, PCI DSS) · Risk reduction · Spec-driven design · Business and customer focus · Program leadership

credentials

Credentials

Certifications

  • CISSP · ISC2 #624539
  • Future Leader · FMI · 2023

Education

  • B.S. Psychology, bio-behavioral concentration · University of Vermont · 2012

Memberships

  • InfraGard
  • Cincinnati ISSA
  • ISC2
  • Volunteer mentorship · Interns, early-career engineers and aspiring technology professionals

off the clock

Off the clock