Founding Growth Product Manager

Viktor is the AI coworker. It lives in Slack and Microsoft Teams, connects to thousands of tools, and does real work for real companies: finance, marketing, ops, engineering. We're building the product that replaces half the SaaS stack with a single teammate.

The team is small. The scope is not.

Start: ASAP

Location preference: primary: EU (Warsaw · Paris · London · Berlin · Amsterdam · Helsinki · Stockholm · Istanbul), secondary: New York City

The opportunity

Zeta is scaling fast and the product works — users who stick, love it. The question driving this role is whether we can turn more of them into long-term customers. Early retention, trial-to-paid conversion, and payment recovery are where the next chapter of growth gets unlocked. You own that surface end-to-end, with the freedom and budget to move fast.

As the founding Growth PM, you set the playbook. There's no team above you to inherit a roadmap from, and no playbook to follow. You build it.

What you'll own

Activation, retention, and monetization across the entire user journey. You won't own paid acquisition or brand — that frees you to go deep on the product-led growth engine.

You'll run the experiment loop across onboarding, integration activation, pricing and packaging, churn-recovery, and in-product surfaces — dashboard, nudges, drip. You'll form the hypotheses, instrument them, ship the A/Bs, read the data, and decide what scales, what kills, and what ships next. Real ownership, real autonomy, immediate impact on the P&L.

You'll inherit a live pipeline of experiments already in flight — onboarding reorder, auto-connect, installer drip nudges, credit top-up pricing tests, dashboard v1. You build on them, not restart from zero. Day one, you have momentum.

What you personally execute

• Activation funnel instrumentation + cohort analysis

• Integration-drop recovery iteration

• In-product activation surfaces

• Retention cohort work — first priority

• Charge-failure recovery flow

• Expansion triggers

• Weekly experiment cadence — 3 live at any time

30 / 60 / 90

• 30d: Full activation + retention funnel instrumented. 3 experiment specs. Retention baseline locked. Charge-failure recovery scoped with Rafał.

• 60d: Integration-drop recovery v2 shipped. First charge-failure recovery flow live. One expansion trigger live.

• 90d: Integration drop + charge failure both moved. 4-week retention trending up (target 22%+ by 90d). Two expansion triggers live.

Must-haves

• 4-8 years Growth PM at PLG SaaS or mobile gaming with ARR-growth attribution

• SQL + PostHog / HogQL fluent - writes own queries

• Shipped in-product growth surfaces with eng — before/after numbers

• Writes own PRDs, lives in Linear/Jira

• Copy-capable on in-product microcopy

• Opinionated on integration/OAuth/auth-funnel drop patterns AND retention cohort work

How we work

Small team, high trust, low process. Decisions are made by owners, not committees. You will ship your first week. You will talk to users your first day. We don't do alignment meetings or stakeholder syncs. We build things, see if they work, and iterate.

Everyone here owns something real. Not a task. A surface of the company that customers depend on. When it breaks, you fix it. When it wins, everyone knows whose work it was.

We use Viktor to build Viktor. You'll see what you're working on in action every day.

Why Viktor

This is a rare window. The product works. The market is pulling. The team is small enough that what you do next week will be live in production next week. That doesn't last forever. Right now, it's still true.

Compensation

Competitive salary, meaningful equity, and the kind of ownership that only exists at this stage.

We're in Munich, New York, and Warsaw. Onsite preferred. The best work happens when you're in the room.