Contact
JH

John Hart

Manager, Technology Product Management
Marriott International
with Holkn Design

I build the voice & AI products behind faster, smarter contact‑centres — supporting the teams that ship them and the environments that use them.

See my work → Resume
Portfolio

Recent projects & current work

20+yrs hospitality & service
10+yrs project mgmt
5+yrs product
Core skills
Product ManagementAgile Project ManagementAgentic & Conversational AIUI/UXVoice ChannelBrand StrategyCCaaSFrontendBackendData AnalyticsVendor & BudgetOrganizational DevelopmentBusiness Experience ManagementCross‑Functional Team Collaboration Product ManagementAgile Project ManagementAgentic & Conversational AIUI/UXVoice ChannelBrand StrategyCCaaSFrontendBackendData AnalyticsVendor & BudgetOrganizational DevelopmentBusiness Experience ManagementCross‑Functional Team Collaboration
Enterprise Work
Marriott
Enterprise

Voice Channel Modernization

Routing, IVR/IVA & CCaaS for a global contact centre.

→ Agentic AI Enablement
Toolkit

Agentic AI Enablement

Assistants & workflows with Copilot, ChatGPT & Claude.

→
Side Projects
byHolknDesign
Voice Studio
Product

Voice Studio

Telephony‑grade IVR/IVA authoring — now self‑serve, same‑day.

→ Louis Lounger
Game & Brand

Louis Lounger

Cozy‑competitive cat tycoon game & brand — in 3‑D preview.

→ The Nook
Web Design & App

The Nook

Business site redesign with a built‑in booking & availability flow.

→
Recent Highlights