The Credential

What It Means to Be an eBay AI Ambassador

One of a small group chosen company-wide to lead enterprise AI adoption
I was selected because I had already done it built the agents, enabled the teams, and measured the outcomes. The ambassador role made the work official.

eBay launched a company-wide AI Ambassador program a small group of individual contributors selected across all functions to move AI from experimentation to practical, enterprise-scale impact. I was chosen because I had already done it.

By the time the program launched, I'd already spent 12 months in the work building three AI agents for eBay's People Team that handled benefits questions, financial guidance, and HR case routing for 10,000+ employees. The program gave it a name. The results were already there.

Builder mindsetEarly adopter of AI at eBay. Build agents, test new capabilities, share what works. Not just recommending tools, actually using them.
Knowledge transformationLed the company-wide Workday Help knowledge base initiative and continue evolving it through AI, automation, and agent-based solutions.
PM + Engineering + DesignWrite a product brief and a prompt spec on the same day. Translate between what business needs and what engineering can build.
Global employee experienceDeep knowledge of the People org, multiple COEs (Benefits, Compensation), and employee needs across AMER, APAC, and EMEA.
What I actually do as AI Ambassador
  • Biweekly People Team enablement sessions hands-on AI sessions with HR staff covering prompting, agent workflows, and practical tools they can use the next day
  • Monthly People Org AI best practices shares broader sessions for the wider People organization covering what's working, what's not, and what's new in enterprise AI
  • AI Transformation Workshops outside the People Team ran a full session for eBay's Global Markets Success team introducing agentic workflows, GenAI tools, and take-home playbooks
  • Identify and prioritize high-impact AI workflow opportunities across eBay functions
  • Pilot enterprise AI tools and build lightweight frameworks other teams can pick up without needing engineering help
  • Turn what works in one team into patterns other teams can reuse so we're not solving the same problem six times
  • Represent the people side of AI in steering discussions what employees actually need versus what sounds impressive in a demo
Product Management Software Engineering AI Tool Integration Team Enablement Prompt Engineering Workflow Design Agentic AI Responsible AI
RSMAI
eBay's strategy, accelerated by AI
RSM stands for Relevant Experiences, Scalable Solutions, and Magical Innovations. In eBay's current framing it's often described as RSM to the power of AI meaning AI isn't a separate initiative, it's the accelerant behind all three pillars.
R Relevant
Relevant Experiences
Make eBay more useful and tailored to each customer.
My contribution: AI agents that give every employee an instant, personalized answer no ticket, no wait.
S Scalable
Scalable Solutions
Build things that expand across markets, categories, and teams.
My contribution: playbooks and agentic patterns any eBay team can pick up and run with.
M Magical
Magical Innovations
Create experiences that are easier, better, and more delightful.
My contribution: transforming how thousands of eBay employees work less friction, faster decisions.
eBay's 2026 priorities (Focus Categories, eBay Live, C2C, global scale) all require fast, AI-ready internal operations to execute. This work builds that.
AI Design Philosophy

Five Principles I Won't Compromise On

After over 12 years in product design and a year leading AI integration, these are the non-negotiables I bring to every AI conversation.

01
AI amplifies the designer - it doesn't replace the thinking
Risk: outsourcing judgment to the model Principle: AI handles volume, designers handle meaning

I've seen teams hand research synthesis or copy generation to AI and walk away. The output looks complete but the insight is shallow - because AI doesn't know what question actually matters yet. My rule: AI gets involved after the designer has formed an initial hypothesis. It sharpens thinking, not substitutes it.

→ Better outputs because the human stays in the loop
02
Trust is designed, not promised
Risk: users reject opaque AI Principle: explainability is a design surface

When I worked on the Magical Listings price suggestion, a single number recommendation felt arbitrary. Adding a "Why this price?" explanation panel - with confidence range and comparable sales anchors - changed adoption by 34% in A/B testing. Users don't just need the right answer. They need to understand it before they'll act on it.

→ +34% price suggestion adoption in A/B testing
03
Speed is not the only measure of AI value
Risk: optimizing throughput, not outcomes Principle: measure confidence and quality, not just time

AI tools will always surface speed as the headline benefit - and it's real. But I consistently push teams to also measure: did the quality go up? Did the team learn something new? Did users trust the output? A 33% reduction in research time means nothing if the insights are worse. The scorecard has to be broader.

→ 33% less research time with equal or better insight quality
04
If it can't be explained to the user, it shouldn't ship
Risk: algorithmic black boxes erode trust at scale Principle: clarity is a non-negotiable design requirement

This is the principle I push back on most in product reviews. Engineers often frame AI decisions as too complex to surface. My counter: if we can't design a clear explanation for the user, we haven't understood the AI's reasoning well enough ourselves. Explainability starts in the design brief, not the legal disclaimer.

→ Governed AI feature reviews across 4 product teams
05
Prompt engineering is a design skill
Risk: leaving AI output quality to chance Principle: the prompt is a design artifact

I treat the prompts I design with the same rigor as the interfaces I design. Length constraints, tone parameters, specificity injections, guardrails - these are not engineering concerns. They are UX concerns, because they directly determine what the user sees and how they respond to it. I co-own prompts with engineering and I iterate on them through usability testing.

→ Prompt design contributed to 25% efficiency gain across design team
Enabling Teams

Helping People Actually Use AI

Building agents is one part of the job. The other part is making sure people know how to use them, trust them, and keep using them after the launch excitement wears off. That takes ongoing work, not a one-time rollout.

Biweekly People Team AI Enablement Sessions

Every two weeks I run a hands-on session with the People Team. We work through real prompts, test new tools against actual HR workflows, and talk through what's working and what isn't. No slides-only presentations. The goal is always something people can use the next morning.

Topics covered: prompt writing for HR use cases, how to evaluate AI outputs critically, when to trust the agent vs. escalate to a human, new tools as they come out.

Monthly People Org AI Best Practices Share

Once a month I run a broader session for the full People organization. This one's less hands-on and more about what's happening across the field: what AI tools are actually delivering results, what teams are struggling with, and where the next opportunities are. It keeps everyone connected to the same picture even if they're not in the biweekly sessions.

Format: short demos, real examples from the team, open Q&A. Designed to fit in 45 minutes and leave people with at least one thing to try.

Workshops Enabling Teams Beyond the People Team

Part of the AI Ambassador role is taking what works inside the People Team and making it available to other parts of eBay. I ran a full AI Transformation Workshop for the Global Markets Success team, covering agentic workflows, hands-on GenAI tool use, and a take-home playbook they could actually run with. The goal with external workshops is always the same: leave the team better equipped than when you walked in, not just inspired.

Approach: workflow-first (real problems, not toy examples), hands-on practice during the session, playbook with tested prompts and tool shortcuts to take away.

"The sessions that stick are the ones where people actually open the tool during the session. If you can get someone to run their first real prompt on something they care about, they come back next time. That's the whole game." Nancy Miller · eBay AI Ambassador
Enterprise AI Transformation

AI Agents for eBay's People Team

The most significant AI transformation work I've led wasn't on the product side it was internal. Embedded in eBay's People Team (HR), I served as both Product Manager and UX Lead for a full AI workflow redesign, bridging the People Team and Engineering (IT Services & Solutions) to deploy three agentic AI systems that changed how 10,000+ eBay employees interact with HR.

Three Agentic Workflows, Three Workflow Problems Solved
Agent 1
Self-Service Benefits Agent Designed conversational flows covering health plan options, enrollment, FSA/HSA rules, and dependent coverage giving employees instant, accurate answers without an HR ticket. Now handles 17% more benefits self-service inquiries end-to-end without human involvement.
Agent 2
Financial Wellbeing Agent Personalized guidance on 401(k), stock options, EAP access, and financial resources designed with Legal and Benefits COE to meet compliance standards. Eliminated the need for individual specialist consultations on routine financial wellbeing questions.
Agent 3
HR Case Deflection Agent A broad conversational agent covering PTO, tax updates, onboarding steps, and policy FAQs with smart intent recognition and contextual routing to human specialists when needed. Reduced overall HR case volume by 24% across 30+ global offices.
Read the Full Case Study
What I Built

AI Across Every Phase of the Design Process

Systematically embedded AI across every phase of eBay's design process research, ideation, prototyping, testing. Not just the shiny visible phases. Each step measured.

AI integration across the design process

Each phase had a different integration challenge. In research, the question was: how do we use AI to surface patterns without losing the texture of individual user stories? In design, it was: how do we use AI generation without letting it homogenize our output? In testing, it was: how do we use automated analysis without outsourcing our judgment about what actually matters?

The framework I introduced: Human-Centered Opportunity Sizing

Before any AI tool gets introduced to a workflow, I run it through three questions: What human need does it serve? What human judgment does it preserve? What happens when it gets it wrong? Any tool that can't answer all three doesn't get recommended. This framework is now used by the broader design team at eBay when evaluating AI tools.

Tools & Methods

The AI Toolkit I Built and Teach

12 months of real project pilots not vendor demos. Every tool was tested on live work before being recommended to the team.

AI tools ecosystem across research, design, and testing phases

Each tool was piloted on a real project before being recommended to the wider team. I documented what worked, what didn't, and under what conditions each tool adds genuine value vs. creates noise. That documentation is now the team's shared AI toolkit.

12AI tools piloted
8Recommended for team use
4Teams enabled
1Shared framework built
Impact

What Changed, and How We Know

Every number below was measured before and after AI integration, against a control or baseline. I was part of designing the measurement approach - because if you don't define what success looks like before you ship, you'll rationalize whatever you get after.

25%
Increase in design team efficiency Measured as reduction in cycle time from research brief to validated prototype. AI tools in the ideation and design phases - primarily Figma AI and Adobe Sensei - accounted for the majority of the gain. Validated across 3 product sprints.
33%
Reduction in user research time By using AI-assisted synthesis (Dovetail AI, Google Analytics Intelligence), the team moved from raw data to actionable insight significantly faster - without sacrificing the quality of findings. Measured across 6 research cycles.
20%
Uplift in user engagement on AI-enhanced experiences Across features where AI was embedded in the user-facing product - not just the design process - engagement metrics improved meaningfully. Measured via Mixpanel cohort analysis post-launch.
40%
Faster listing creation in the Magical Listings project The flagship project where AI integration was most visible in the product. Photo recognition, AI descriptions, and smart pricing combined to cut average listing time nearly in half.
"Impact is the only argument that matters when you're trying to change how a large team works. I didn't just advocate for AI - I showed the numbers." Nancy Miller · eBay AI Ambassador
Credentials

11 AI & UX Certifications

I pursued these certifications deliberately - not to collect badges, but to build a rigorous foundation for the recommendations I make to the team. Each one informed a specific decision or workflow change at eBay.

Prompt Engineering: How to Talk to the AIs
What Is Generative AI?
AI Essentials for User Experience Designers
Design to Code: Using AI to Build Faster
AI Productivity Hacks to Reimagine Your Workday
Using AI in Research Projects
Using AI Tools for UX Design
UX for AI: Design Practices for AI Developers
Using AI in the UX Design Process
Get Ready for Generative AI
AI Foundations: Machine Learning
Reflection

What Leading AI Design Has Taught Me

Being the AI Ambassador means being the person who has to make the case - to skeptical stakeholders, to excited engineers, and to designers who are afraid their work is being devalued. I've had all three conversations. Here's what I've learned.

01
The best AI tools make designers more curious, not less

When AI handles the volume work - clustering, synthesis, layout generation - it frees the designer to focus on the questions that actually matter. That's the right direction. Tools that make you stop asking questions are a warning sign.

02
Responsible AI advocacy requires saying no

I've killed features that looked great in demos because they failed the "what happens when it's wrong" test. That credibility - of being the person who holds the quality bar - is what makes the yes decisions land with weight.

03
The real work is cultural, not technical

Getting a team to use Figma AI is easy. Getting a team to trust AI outputs, question them intelligently, and iterate on prompts the same way they iterate on designs - that takes months of modeling the behavior yourself.

04
AI doesn't change what good design is - it changes how fast you get there

Good design is still grounded in human understanding, clear thinking, and honest tradeoffs. AI accelerates the path to those outcomes. It doesn't change the destination.

The question I ask before every AI integration is the same one I ask before every design decision: does this serve the person using it? If the answer is yes and you can prove it, move fast. If the answer is unclear, slow down and find out.

To discuss AI design leadership, the frameworks I've built, or how I approach responsible AI integration at scale, connect with me on LinkedIn / Nancy-UX.

All Work
Portfolio
Back to Home
Related
Case Study
eBay HR AI Transformation