Junior Data Engineer - AI-Driven Pipelines

Voltility; Greater London; On-site; GBP 30,000 - 42,000; Full time

Job summary

Voltility is seeking a Junior Engineer to help build tooling that collects, structures and checks its data. This hands-on developer role involves working with a senior engineer on an AI-led data stack and taking ownership of pipeline components from day one.

You will learn the data and energy markets, gain real responsibility, and explore new AI extraction approaches with guidance from the team.

Qualifications

• Early-career developer with solid Python and SQL skills.
• Experience developing or integrating with APIs is a bonus.
• Experience with web scraping tools and approaches from work, study or personal projects.
• Curious and quick to learn, comfortable with code reviews and feedback.
• Hands-on experience using transformer-based AI tooling including: agentic coding harnesses and small language models.
• Demonstrable experience in synthesizing structured data from unstructured documents for loading into relational databases.

Responsibilities

• Build and maintain collectors and parsers for public sources to specification.
• Write and maintain tests, monitoring and documentation for pipelines.
• Investigate and fix pipeline failures and data errors reported by the research team.
• Help build and improve review tooling researchers use to check machine-collected data.
• Experiment with AI and LLM-based extraction on new source types and report what works and what does not.
• Learn and develop the data model, taxonomy and the power and data centre markets the data describes.

Skills

Python

SQL

APIs

Web scraping

AI tooling

Data pipelines

Structured data extraction

Job description

Voltility is seeking a Junior Engineer to help build tooling that collects, structures and checks its data. This hands-on developer role involves working with a senior engineer on an AI-led data stack and taking ownership of pipeline components from day one.

You will learn the data and energy markets, gain real responsibility, and explore new AI extraction approaches with guidance from the team.