Senior Data Scientist

Devconnectplatform; Polska; Hybrid; PLN 248,000 - 317,000; Full time

Job summary

Applandeo is seeking a Senior Data Scientist for a remote role in Poland or Cracow on a 6-month project. You will work on the Payment Intelligence and Fraud Prevention domain using Python, SQL and GCP technologies such as Vertex AI and BigQuery. The role emphasizes the full ML lifecycle, including feature engineering, production deployment and A/B testing.

Fluency in English and Polish is required. The engagement is B2B with an hourly rate, starting from 200 PLN/h+, and offers a remote work

Qualifications

• Production ML experience
• Fluency in English & Polish
• Full ML lifecycle experience including feature engineering, production deployment and A/B testing

Responsibilities

• Lead end-to-end ML projects from data exploration to production
• Collaborate with cross-functional teams to deliver ML features and experiments

Skills

Python

SQL

GCP

Tools

BigQuery

Vertex AI

MLOps

Deep Learning

Job description

# Senior Data ScientistApplandeo2–200 USD/hrFull-timeremote· seniorPolandpythonsqlgcpListed via Hacker News · posted 2 Oct 2026. The application happens there, not on DevConnect.Apply on the company site## DescriptionApplandeo | Senior Data Scientist | Remote (Poland) or Cracow | B2B from 200 PLN/h+ | 6month projectWe are looking for a Senior Data Scientist to join our Payment Intelligence / Fraud Prevention team.\\* Stack: Python, SQL, GCP, Vertex AI, BigQuery, MLOps, Deep Learning\\* Role: Full ML lifecycle (feature engineering, production, A/B testing)\\* Requirements: Production ML experience, fluency in English & PolishFull job description and direct application: https://applandeo.com/careers/senior-data-scientist/