Data Scientist III
OpenX · Krakow, WI
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Jun 29, 2026
Krakow, WI
Jul 21, 2026
What this job asks for AI summary
A mid-to-senior data science role focused on building and maintaining production machine learning models for a programmatic advertising exchange. Day-to-day work spans the full ML lifecycle — feature engineering, model training, deployment, monitoring, and retraining — with particular emphasis on bidding, yield, and relevance systems at large scale. The role also involves mentoring junior scientists and collaborating with product and engineering teams.
Senior level · 5+ years · Remote
“or” means any one of them counts — you don't need all of them.
We read this from the posting text with AI. Skim the description below before ruling yourself out.
How this req sits in the market our data
Roughly 6,000 people nationally plausibly meet what this posting asks for (data scientists). range 1,750–9,000
Applicant volume Moderate — A normal amount of company. The rare requirements below are what will separate a shortlisted application from the rest.
Most people in this occupation already list these. Still required — just not what gets you shortlisted.
What the occupation pays Median $120,230 (middle half $85,660–$158,880). This posting is about at that midpoint.
Estimated from BLS employment for this occupation and area, per-skill prevalence across our listing corpus, and published wage benchmarks — as of Jul 28, 2026. It is a model, not a headcount.
Why we read it this way (11)
The posting is for a role based in Poland (compensation quoted in PLN), so the US-based flag is set to false; the caller has instructed remote=true with no metro inferred.
The title 'Data Scientist III' maps to a Senior-level individual contributor; the 'III' suffix is treated as an explicit Senior-level claim for the level advertised in the title.
Degree requirement is set to None: the JD accepts a B.S. or M.S. with 5+ years OR a Ph.D. with 2+ years, meaning no single minimum degree is hard-gated — experience can substitute.
The overall years minimum is set to 5, reflecting the lower bound of the B.S./M.S. path (the more common entry point); the Ph.D. path requires only 2+ years.
The compensation figures reflect the employment-contract option (19,550–21,850 PLN gross/month). A B2B rate of 160–179 PLN net/hour is also offered but not captured in the primary comp fields.
Gradient-boosted models, deep neural networks, A/B testing, and causal inference are listed in the Required Qualifications section alongside Python/SQL/TensorFlow/PyTorch, so all are marked required.
GCP, Vertex AI, BigQuery, Dataflow, and Kubeflow/TFX/Airflow appear under Desired Characteristics and are marked preferred.
Java and Go appear under Desired Characteristics ('familiarity with other programming languages') and are marked preferred.
Vertex AI pipelines and Dataflow are mentioned in the responsibilities narrative as examples of distributed tooling, but GCP/Vertex AI are explicitly called out as preferred in Desired Characteristics — consistent treatment applied.
Caller marked this a fully-remote role — scored against the national candidate pool.
This role's work location reads as outside the US — the candidate pool, comp, and contention benchmarks here are US-only (BLS employment, Adzuna/USAJOBS demand, and certified H-1B wages), so treat them as a rough US reference, not a local market.
Read the full posting
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