Posted at: 29 December

Data Specialist (Remote/Hybrid)

Company

Alex Staff Agency

Alex Staff Agency is an international IT recruitment B2B agency specializing in connecting top tech talent with companies in the IT and creative sectors, operating remotely without a fixed headquarters.

Remote Hiring Policy:

Alex Staff Agency embraces remote work and offers flexible collaboration options, including fully remote roles and hybrid models in locations such as London. Team members are supported across various regions.

Job Type

Full-time

Allowed Applicant Locations

United Kingdom

Apply Here

Job Description

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
    • 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)
    • 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
Apply Here