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Achievements

Achievement: Pull Sharkx4Achievement: Pair Extraordinairex2Achievement: QuickdrawAchievement: YOLO

Achievements

Achievement: Pull Sharkx4Achievement: Pair Extraordinairex2Achievement: QuickdrawAchievement: YOLO

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mkushner/README.md

Max Kushner

Co-founder at Playbook, the agentic-first media backend, 2.5M+ users. Two jobs, one person: the money and the machines. I write the code for both.

The money. Revenue, billing and analytics: payments end to end, dunning, pricing migrations, churn, and getting money reported to match money collected.

The machines. Making Playbook usable by agents, not just people: the API, the MCP server, OAuth for agents, Hosted Apps, and the observability that shows whether an agent got its job done, not just whether the tool responded.

Selected work

  • revenue-triage: Stripe failed-payment triage for Slack. It pings only when an invoice needs a person.
  • Writing: MCP telemetry with PostHog, part 1 and part 2.
  • Demo: AI Tinkerers Lisbon × PostHog Demo Night, Sep 2026. A loop that drafts MCP server fixes from production analytics.

Before Playbook

Five years as an engineering manager at Evil Martians (eBay, Tines, HTTPie, LOEWE) · co-founder of CanFY, acquired by Playbook · co-founder of FarmGuests, a Booking Booster Labs 2018 finalist · YC Startup School 2018.

Building the unglamorous systems that keep the numbers honest. unglamorous.systems · LinkedIn

Pinned Loading

  1. llm-command-center llm-command-center Public

    Python 1

  2. pipedrive_slack_notifications pipedrive_slack_notifications Public

    Pipedrive -> Slack custom notifications

    Python

  3. SDS011 SDS011 Public

    Forked from ricki-z/SDS011

    Arduino library for SDS011 dust sensor

    C++

  4. astroband/astrograph astroband/astrograph Public

    Access Stellar ledger via GraphQL

    TypeScript 116 11