About the Position

We are looking for a Data Analyst to join RENEWCAST, a company founded in 2020 that specializes in precision wind and solar forecasting software using cutting-edge machine learning.

About RENEWCAST

Founded in 2020, RENEWCAST builds precision wind & solar forecasting software using cutting-edge ML to deliver accurate, scalable, and cost-efficient predictions.

Your Role

You will own the first step of every client onboarding: understanding the peculiarities of the client's data and bringing it into our ingestion framework cleanly, reliably, and with the attention to detail this work demands. Alongside this, you will run data analysis and performance checks that add value across the company - supporting data science with feature and quality signals, commercial with client-performance views, engineering with operational insight - and contribute to the automations and frameworks that make all of this faster over time. You join the data engineering team, collaborate closely with data science, and grow under direct mentorship from the engineers who built the tools you will use every day.

What You Will Do

Map new client data into our internal schema - reading files and APIs, configuring our ingestion framework (YAML + Python), resolving schema, timezone, DST, unit, and completeness issues that come with real-world data
Assist Client Operations in technical onboardings and evaluate technical features of client data when required
Investigate data anomalies and reconcile what lands in our warehouse against what the client sent - this work is detail-heavy by nature and we take that seriously
Run ad-hoc data analysis and performance checks that create value for data science, commercial, product, and engineering
Contribute to the frameworks and automations that power our data workflows - spotting repeated patterns, proposing improvements, writing reusable configurations under mentorship

Requirements

2 years of professional experience in a data or software role
Strong Python - confident writing, reading, and debugging code; familiarity with pandas and visualisation tools like plotly
Comfortable working with APIs - authentication, pagination, parsing responses
Strong attention to detail - forecasting quality depends on the precision of the data we ingest, and small mistakes compound downstream
Genuine motivation for data analysis, data science, and engineering - our stack will stretch you, and we hire for that appetite
Based in Estonia (Tallinn preferred, hybrid)
Professional English (written and spoken)

Bonus Points

SQL - any dialect
Cloud platform experience (Azure, AWS, or GCP)
Exposure to configuration-driven tools (YAML, Pydantic, OmegaConf, Hydra)
Git and code review workflows
Any exposure to Spark, Delta Lake, Databricks, Airflow, or Kubernetes
Energy sector experience (renewables, power markets, weather data)

We Offer

A role integrated inside data engineering with close collaboration with data science - a genuinely interesting path to build your chops across the full data stack while adding value to the whole company
Direct mentorship from the engineers who designed the frameworks you will work in
Competitive compensation
Hybrid flexibility (Tallinn office)
High-ownership environment with leadership visibility

How to Apply

Send your resume directly to recruiting@renewcast.com

or Click below to apply.

RENEWCAST

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Data Analyst

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