OPEN TO WORK05:13:34 SCOTTSDALE
— 01 / INDEX
v
2026.06
uptime
26.5y
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AI product engineering ↗

MarshallCahill

20+ years shipping enterprise-scale platforms at GoDaddy, Ticketmaster, and DHL. Today, redefining the product role — a single operator who owns strategy, design, code, and ops by orchestrating AI agents instead of handoffs.

NOW

Leading product on GoDaddy Agent Name Service (ANS) — the IETF-track trusted identity system for AI agents — while solo-shipping production apps and autonomous agents. 12+ apps and 4 agents launched since Nov 2025.

See the work →Get in touch

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WORKS WITHClaudeChatGPTCodexCursorPerplexity

02/ WORK22 entries

Software I ship.

Built between a day job and a life. Filter below.

// Products people pay for.

03/ CAREER9 entries

Where I've been.

The short version. Happy to send the long one.

  1. Jan 2011 — Now

    GoDaddy (Scottsdale, AZ)

    Director, Product Management

    Led 5+ product teams across My Account, Cart & Checkout, Domain Purchase Path, Experimentation, and now Agent Name Service (ANS) — GoDaddy's IETF-track trusted identity system for AI agents (publicly launched Oct 2025). Drove the experimentation transformation from <12 mostly-uncontrolled tests/month to 400+ properly-controlled experiments/month — feeding the Hivemind rollout publicly credited with $1.6B in revenue growth. Recovered ~95% of revenue from GDPR-mandated free WHOIS privacy through 28 controlled-experiment iterations of solution-set bundles. Led the mobile-first redesign of GoDaddy's global checkout processing billions of dollars annually.

    #09
  2. Apr 2007 — Oct 2010

    Ticketmaster Ltd. (London, UK)

    International Product Manager

    Owned Discovery & Web Marketing, Web Checkout, Online Auctions, TicketExchange, and Web Point of Sale across international markets. Global PM for CRM and the Ticket Creation Tool. Launched an auction product in 7 countries exceeding revenue targets, and delivered the London 2012 Olympics CRM and ticket-allocation rollout — zero-slip on the hardest possible deadline.

    #08
  3. Dec 2004 — Jan 2007

    DHL Express Inc. (Scottsdale, AZ)

    Product Manager · Sr. Business Analyst

    Promoted from Sr. Business Analyst to Product Manager. Owned DHL WebShip, CorporateShip, and Import Express Online for the global lead region. Drove roadmap and delivery of enterprise web apps on Service Oriented Architecture; defined business cases, ROI models, and KPIs; built executive dashboards and ran usability programs with RazorFish and Sapient.

    #07
  4. Aug 2004 — Dec 2004

    Synergy Seven Inc. (Phoenix, AZ)

    Consultant

    Supported DHL eCommerce systems and administered DHL CorporateShip. Built HTML and Java intranet pages, ran statistical data analysis, supported the Siebel database rollout, and improved team efficiency with macro and Java scripting.

    #06
  5. Dec 2003 — Aug 2004

    2wire Inc. (Phoenix, AZ)

    Technical Support Representative

    Front-line support for home networking customers — ADSL/cable WANs, Ethernet/USB/HPNA/802.11g LANs. Direct, by-phone troubleshooting at scale; the school where I learned how non-engineers actually describe broken systems.

    #05
  6. Aug 2001 — Dec 2003

    Layer 7 Labs Inc. (Scottsdale, AZ)

    Consultant

    Consulted for a Cisco reseller — set up and configured routers, catalyst switches, and telco gear; designed and sold Cisco simulation labs for certification and training; ran web admin and technical support for hosting and inventory-tracking servers.

    #04
  7. Jul 2001 — Dec 2002

    Valley Corp. Inc. (Phoenix, AZ)

    Consultant

    Architected, upgraded, and set up the office computer and networking environment. Designed the commercial-property company website; stood up IIS and Apache servers handling user security, web domains, and mail.

    #03
  8. Aug 2001 — Aug 2002

    PMD (Project Marketing Decisions) L.L.C. (Chandler, AZ)

    Systems Administrator · Technical Advisor

    Remote support and admin of business-critical systems across multiple sites — web/mail/SQL/VPN. Ran market research via Crystal Reports and proprietary survey software.

    #02
  9. Aug 2000 — Apr 2002

    ServiceTRAC L.L.C. (Scottsdale, AZ)

    Systems / Network Administrator · I.S. Analyst

    First technical role. IIS / Apache / SQL administration across multiple offices, VPN and remote-access infrastructure, and direct executive support — including the unglamorous on-call work that taught me how production systems actually behave.

    #01
04/ COMMUNITY24 entries

What I give back.

Talks, writing, teaching, and mentorship.

ESSAYS · 07

TALKS · 08

  • Accelerating customer outcomes with AIAWS re:Invent · Las Vegas, NV
    2024
  • Building a world-class stats and experimentation engineSplit.io · Virtual
    2021
  • Stitching and interpreting digital and IRL customer signalsClickTale · San Diego, CA
    2019
  • Data-driven product developmentGoDaddy TechFest · Scottsdale, AZ
    2016
  • Briefing the 2012 London Olympics CommitteeLondon, UK
    2010
  • VIP experiencesTicketmaster · Barcelona, ES
    2009
  • Urban trauma responseLondon, UK
    2007
  • Business continuity in an uncertain worldMercury Interactive · Las Vegas, NV
    2005

TEACHINGS · 05

  • Coding class, grades 5–8 (MMA Coding)Scottsdale, AZ
    2025–2026
  • Start Your Business program for SMBsArizona Commerce Authority · Phoenix, AZ
    2010–2011
  • Media studies guest lecturerUCL Institute of Education · London, UK
    2007
  • CPR instructorSt. Joseph's · Phoenix, AZ
    2000–2001
  • Teacher assistantPhoenix School for the Blind · Phoenix, AZ
    1997–1999

MENTORS · 04

  • Outcome ownership for seasoned PMs1:1 mentor
    2021–2025
  • Business growth advisor for SMBs1:1 mentor
    2012–2014
  • Product-owner development for newcomers1:1 mentor
    2008–2010
  • Big Brother for at-risk youthCousin / helper
    2000–2001
05/ MUSINGS

Thinking out loud.

A daily public notebook on the collision of technology, markets, and power — written in the open, on the record, every weekday.

I spend my days building products and orchestrating AI agents — this is that same practice turned on myself. An agent I built reads the day's news and drafts each entry in my voice; then the honest part: nothing publishes automatically. I review every draft, edit what isn't mine, and kill the takes I don't hold. A writing assistant and a discipline device, not a ghostwriter with the keys — if a post is up, I stand behind it.

HOW IT WORKS
  1. 01Agent drafts from curated sources
  2. 02I review, edit & approve — or kill it
  3. 03Only approved posts publish, weekdays
Tech & AIBusiness & MarketsPolitics & PolicyCulture & Society
Read the musings →How it's built →

Drafts written with Claude · reviewed and approved by me