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Sam Katzen

Product manager in New York

Product manager by title. Builder by nature.

I write the specs, run the sprints and ship alongside engineers and designers. 10+ years in digital product, from the UN Global Compact and NYU Langone Health to founding inkly and co-founding Rent with Rêve and Moment Mappers.

ProjectsSam KatzenProduct ManagerAbout meRÊVE4, 7 or 14 days

Work

Products I took from zero to one and enterprise platforms I scaled at NYU Langone and the UN.

Turning CRM triggers into real pen-and-ink mail. inkly · Founder · Since 2025 50,000+letters mailed across 20 customers60%customer reorder rate20%of 100+ demo requests converted inkly's campaign wizard at the Messages step, with sample data, and the card it previews: a Thank you front, and the inside in handwriting More reporting, same team. NYU Langone Health · Senior PM · 2025–2026 +70%reporting request throughput+25%engineering delivery speed60analytics improvements shipped Illustration of the reporting request form: what you need, the expected outcome, which is required, and the team, then Submit request Scaling onboarding, learning, and 16,000-company reporting. UN Global Compact · 3 roles · 2016–2024 +14%membership applications−26%application drop-off10,000+active learners on UNGC Academy Illustration of the membership onboarding A/B test result, applications up 14% and application drop-off down 26%, over the old page, Version A, and the new one, Version B, which sets out who can apply and what to prepare before the Apply button Launching a luxury fashion rental and resale store. Rent with Rêve · Co-Founder · Since 2026 30+curators lending their closets21×inventory sync scale in 38 days4AI & ops tools shipped to production Illustration of a fashion brand's product page for a red floral maxi dress, with the Rent it through Rêve button under Add to bag, rentals of 4, 7 or 14 days, in front of rentwithreve.com in a browser Selling event photos before the night ends. Moment Mappers · Co-Founder · Since 2025 12,000+photos field-tested across 3 cities3 secupload on reconnect in airplane-mode test32%free-preview to paid conversion The photographer's gallery on a tablet, and a guest's photo delivery page on a phone

Experience

Where I've worked. Open a row for what happened there.

2025 – Now inkly · Founder & Product Lead 3 live integrations
  • Founder & Product Lead2025 – Now
  • Turned inkly from a mailing service into an integrations platform: 20 customers in real estate, fintech and ecommerce have sent 50,000+ letters, and 60% have reordered.
  • Shipped Zapier, Shopify and HubSpot integrations and a REST API on one order engine, so a closed-won deal sends a card on its own; chose Zapier first after interviewing sales leaders at 10 companies.
  • Built a campaign wizard for up to 5,000 recipients from one CSV, with message variants and per-recipient QR tracking that shows who scanned and which message won.
  • Designed tiered pricing and prepaid API credits, so one card and a 1,000-card campaign run through one flow.
  • Aimed sales at about 30 recurring B2B accounts instead of one-off consumer cards; of 100+ demo bookings and sample requests, 20% became customers.
Read the case study
2025 – 2026 NYU Langone Health · Senior Product Manager +70% reporting throughput
  • Senior Product Manager, Marketing Technology Analytics2025 – 2026
  • Raised reporting throughput 70% by rebuilding request intake: an expected outcome required on every request, and work ranked by business value, urgency and capacity, not arrival order.
  • Increased delivery speed 25% for an eight-person data engineering, data collection and reporting team with clear owners, milestones and operating routines.
  • Directed the Mixpanel to Databricks migration to lower platform costs and scale reporting; validated it in SQL, comparing records and aggregation logic across both systems.
  • Balanced maintenance against new reporting across 60 completed engineering improvements and fixes to enterprise analytics systems, reporting to technology and marketing leaders.
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2016 – 2024 UN Global Compact · Digital Consultant to Product Manager +14% membership applications
  • Product Manager, Technology and Data2019 – 2024
  • Project Coordinator, Technology and Data2017 – 2019
  • Digital Consultant2016 – 2017
  • Rebuilt membership onboarding from behavioral and application data, A/B testing pages that set out eligibility and what to prepare: applications up 14%, application drop-off down 26%.
  • Selected Docebo and launched the UNGC Academy, a main value offer for new members: 100+ courses, 10,000+ active users and 1,500+ certificates issued.
  • Led the Local Network Hub, an intranet for 80+ local networks with 2,000 active users, with a shared structure that kept global consistency and left room for local content.
  • Redesigned and relaunched the Communication on Progress platform 16,000 organizations use to report their progress, improving accuracy, user experience and participation.
  • Replaced an outdated custom CMS with Drupal, moving thousands of pages and cutting the request backlog through self-service editing; moved core databases to AWS with zero downtime.
  • Managed teams of up to 10 developers and designers from requirements to launch, including AI-enabled search across databases and content systems.
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Spec to Production

Seven production systems, live across three companies. I define the problem, the rules, and the test bar; coding agents build and review under my sign-off.

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How inkly and Moment Mappers ship

  1. 01 SpecMy specProblem, constraints, and acceptance tests
  2. 02 BuildClaude CodeImplementation and automated test suite
  3. 03 ReviewCodexIndependent spec & edge-case audit
  4. 04 ShipVercelPreview check, device gate, and release

Builder by nature.

3,153 contributions on GitHub in the last year.

View on GitHub
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2026

Hi, I'm Sam,

I'm a product manager with 10+ years in digital product and nearly nine years as a product manager. I write the specs, run the sprints and ship alongside engineers and designers.

I spent nine years at the UN Global Compact, starting as a digital consultant and leaving as a product manager. I led membership onboarding, the UNGC Academy and the platform 16,000 organizations use to report their progress.

At NYU Langone Health I led an eight–person marketing technology analytics team as Senior Product Manager. Reporting throughput went up 70%.

Now I run inkly, where machines write cards with a real ballpoint pen. I also co–founded Rent with Reve and Moment Mappers, and I use AI tools like Claude Code every day.

If your team needs a product manager who writes the spec and ships it with the engineers, reach out.

SamProduct manager in New York