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Robots and Pencils

Middle Data Scientist

Robots and Pencils · Lviv, Ukraine

Posted 25 days ago

or apply directly on Robots and Pencils's site. We never take the application ourselves.

Is this posting real?

This role has been open
25 days
Robots and Pencils's roles stay open a median of 37 days
Reposted
No
Salary listed
No
25% of Robots and Pencils's roles list one
Ghost-job risk at Robots and Pencils
high
12 stale, 5 reposted of 28 open
Hiring momentum
63 roles opened in the last 90 days
↑ up vs. the prior 90 days
Last confirmed on the employer's board
2026-09-17

Measured from postings appearing on and disappearing from Robots and Pencils's own greenhouse board since 2026-08-03. Full hiring picture for Robots and Pencils.

About this role

As a Middle Data Scientist at Robots & Pencils, you will focus on building and validating demand-prediction models using classical forecasting and machine learning methods on messy business data. Your role involves collaborating closely with AI Engineers to turn ambiguous business questions into validated models, while also documenting decisions and assumptions clearly. You will also have the opportunity to package mature models as services for LLM agents.

Our read on this posting3.2out of 5
benefits
4/5
freshness
4/5
career value
4/5
role clarity
4/5
pay transparency
0/5

Scored from the posting itself — how clearly the role is described, how much it says about pay and benefits, and how recently it was listed. Not a judgement of Robots and Pencils as an employer.

What you need

  • 3+ years of professional experience in data science or applied ML
  • Strong classical forecasting/ML background including ARIMA/SARIMAX, Prophet, and gradient boosting (LightGBM/CatBoost)
  • Experience in feature engineering for time series
  • Proficiency in Python with libraries such as pandas, numpy, statsmodels, scikit-learn, and Prophet
  • Ability to work with messy ERP/SQL extracts and define target variables from ambiguous business data

Nice to have

  • Experience with FastAPI and Docker to wrap trained models as callable services
  • Familiarity with MCP (Model Context Protocol) or agent-tool-calling patterns
  • Basic Azure exposure (App Service/Container Apps, or Azure SQL)
  • Knowledge of model versioning and drift/retraining triggers
  • Experience integrating weather/exogenous data into models

What you get

  • 20 days of paid vacation
  • 15 days of unpaid vacation
  • All official public holidays off
  • 5 paid sick days without a doctor's certificate
  • Medical insurance
  • Military draft deferment support

Worth weighing

  • The role involves working with messy data, which may require strong problem-solving skills
  • No specific mention of salary or compensation details
  • The position requires handling ambiguous business questions, which may lead to shifting priorities
  • The company emphasizes a fast-paced environment, which may not suit everyone

Summarised from Robots and Pencils's posting. Read the full original.

Listed by Robots and Pencils on their greenhouse job board, last confirmed open on 2026-09-17. PitchMeAI is not the employer.

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