Data Engineer
Viktor, Warsaw +1
- Pay
- Not listed by the employer
- Work type
- Onsite
- Level
- Not stated
- Area
- Data engineering
- Posted
- Aug 11, 2026
About the role
ABOUT VIKTOR
Viktor is the AI employee that lives in Slack and Microsoft Teams, connects to thousands of tools, and does the work: reports, dashboards, code, campaigns. Our mission is to give every company an AI employee.
The team is small. The scope is not.
THE SHORT VERSION
You own the truth. You use code and AI agents to build the pipelines, answer the questions, and ship the dashboards everyone else relies on. You own whether the numbers are right, not whether you typed every query yourself. You don't wait for someone to tell you what's happening; you go find out, then bring the answer to the team. Equal parts engineer and analyst. You ship.
WHAT'S ACTUALLY GOING ON HERE
The data foundation is already in use and still evolving. You improve the warehouse, pipelines, dashboards and alerts while keeping them dependable as the product and company change.
We are moving to lifetime gross profit, LTGP, as the value the ad platforms bid on. A first model runs in shadow today. The conversion tracking, attribution data and pipelines behind it are part of this role.
You'll join our analytics function early, with no data lead above you. The foundation is in motion, not finished: you take real ownership of the warehouse, pipelines, dashboards, and alerts, and build them out. You report to Peter Albert.
WHAT YOU'LL ACTUALLY DO
- Own the ClickHouse warehouse end-to-end. Schema, ingestion, backfills, performance. You decide how it's structured and what gets in.
- Build and maintain the pipelines. Prod Postgres, Stripe, Slack, ad platforms, whatever's next. You build and operate them, with tests, monitoring and safe backfills. You own the recovery when they fail and verify the data, not just that the job ran.
- Own conversion tracking and attribution data. The events and values we send to Meta and Google, the attribution data that comes back, and the feed that carries LTGP to the platforms. Miloš runs this today and stays on it; you add coverage and extend it.
- Run the BI layer. Hex dashboards for growth, finance, support, product. You build, maintain, and prune them; dead dashboards are worse than none.
- Answer the questions that move the business. Retention cohorts, credit and unit economics, channel attribution, churn, pricing impact. You bring answers proactively.
- Stand up monitoring and alerting. We hear about a metric moving the wrong way from your alerts, not from a customer.
- Work with the co-founders and leaders across the company. You scope, prioritize, ship fast, and push back when the question isn't the right one.
HOW YOU'LL KNOW IT'S WORKING
- The team makes decisions faster because the numbers are clear and trusted.
- People stop building parallel spreadsheets. The dashboard is the source of truth.
- When a metric moves, you knew first.
- The co-founders stop pulling numbers themselves, because you're better at it.
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Listed on Viktor's Ashby job board; checked 25 h ago. First seen by us 26 h ago. Being listed doesn't mean the team is actively interviewing. We found this board in a public directory and haven't yet confirmed it against the company's own careers page.