Data Specialist (Remote/Hybrid)

About the company and the project:

An international company, a leader in developing large-scale energy storage and grid-stability technologies, is in search of a highly skilled and experienced Data Specialist to be a part of its core team.

The company has been operating since 2006 and is currently expanding its portfolio of commercial power plants. The successful candidate will contribute to the fastest-growing direction, integrating advanced software with physical energy infrastructure.
The company has offices in London, Dubai, and India.

You are offered a completely remote form of collaboration or a hybrid work model in London.

Your tasks on the position:

• Mapping BM units, substations, and fuel types across Elexon, National Grid, and other sources; maintaining master/reference datasets
• Documenting mappings, assumptions, and known limitations clearly for downstream users
• Reconciling legacy and current data formats; ensuring consistency between Elexon message types
• Investigating discrepancies between data sources to determine authoritative values
• Cleaning time-series data: detecting outliers, filling gaps, resolving duplicates, and understanding root causes of quality issues
• Developing reusable Python-based cleaning routines and data grabbers for APIs
• Building dbt models and designing PostgreSQL schemas for clean, analysis-ready datasets
• Orchestrating workflows using GitHub Actions