Marketing Engineer
At fonio · Vienna; Remote; Vienna, Austria
Salary: €65,000 – €130,000 a year
- Marketing
- Full-time
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Where you can work from
Open to Austria
“Vienna”
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“Vienna, Vienna, Austria”
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Relocation
Relocation help
“Relocation support”
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- Posted
- 1 September 2026
- First seen by us
- 3 November 2026
- Last checked
- 5 hours ago
Job description
From fonio’s job post, as they wrote it.
☎️ About fonio
fonio.ai is a market leader in AI agents for SMBs. We started with phone agents and now also cover WhatsApp, web chat, email and a full AI phone system. We’re growing fast across Europe, the UK, the US and Brazil.
We grew from $1M to $10M ARR in under 12 months, then went from $10M to $20M in about 8 weeks. Today we serve 10,000+ customers.
We move fast, take ownership, give direct feedback, and avoid politics and unnecessary meetings.
Read the full description
Join one of the fastest-growing companies! 🚀
The Role
You build and own fonio’s data foundation, from raw data to models. You bring data from our own systems and third-party tools together in one warehouse and build the models the business runs on, starting with CLTV. You make data easy for anyone in the company to use, and you make sure everyone gets the same answer.
What to Expect
* Data warehouse: Set up and run the warehouse (e.g. Snowflake) with off-the-shelf tools. Buy the plumbing, build the models.
* Pipelines: Build and maintain ETL and reverse-ETL pipelines with cost-effective tools (e.g. Weld over Fivetran).
* Modelling layer: Own the modelling layer in dbt (or similar) and automate as much as possible.
* Core models: Start with a cohort-based CLTV model, then build other core models such as retention and payback.
* Metric definitions: Define key metrics (CAC, CLTV, churn, activation) once and document them as the single source of truth.
* Self-serve access: Open the warehouse so anyone can query it and build dashboards with Claude, with the right access controls in place.
* Data quality: Set up data tests and monitoring so people can trust the numbers.
* Stakeholders: Work closely with the founders and the marketing team to turn business questions into models.
What You Bring
* 3 to 5 years of hands-on experience with a modern data warehouse such as Snowflake.
* Experience with ETL and reverse-ETL tools.
* Strong SQL and dbt skills.
* Comfortable doing both the engineering and the modelling.
* Highly driven: you own things end to end and move fast without waiting for a team around you.
* You’d rather automate a task than do it by hand twice.
What We Offer
* €65,000 to €130,000
* Equity
* Daily lunch and dinner at our Vienna office, plus drinks, protein bars and vitamins
* Relocation support
* Equipment of your choice
Hiring Process
1. 15 min Intro Call with Talent Acquisition
2. 30 min Intro with Matthias (CTO)
3. 30 min Skill Interview (a deep dive on your technical skills)
4. 20 min Cultural Fit
How we hire?
We're AI-native, including in hiring. AI helps us to remain efficient, but people make every decision.
fonio is an equal opportunity employer. We hire for talent and ownership, whatever your background is.
Need an adjustment in the process? Just tell us.
Please send your CV in English. Then knock us off our feet 🚀
Marketing Engineerfonio
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