Alex Staff
Data Specialist (Remote/Hybrid)
Alex StaffLithuania4 hours ago
Full-timeRemote FriendlyOther
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

Requirements

  • 3+ years of experience as a Data Engineer
  • Strong Python programming skills (especially for API data ingestion and ETL)
  • Advanced SQL and data modeling experience with PostgreSQL
  • Experience with messy, real-world data
  • English B2+

Will be a plus:

  • Experience with energy, utilities, or market data
  • Familiarity with UK energy markets, Elexon data, or grid operations
  • dbt experience for transformation pipelines
  • Exposure to time-series data challenges (irregular timestamps, gaps, restatements)

Benefits

  • Competitive salary according to your experience and skills
  • Official employment according to the UK Labor Law
  • Paid vacation
  • Plenty of opportunities for learning and professional growth
  • Starting next year, everyone will be issued Macs with tracking software
  • B2b contract or official employment for the candidates based in the United Kingdom

Key Skills

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