Data Engineer

Freshminds Interim; City Of London; Hybrid; GBP 60,000 - 80,000; Part time

Job summary

A purpose-driven technology company in London is seeking a Senior Data Engineer to join its Platform Delivery team. You will design scalable data pipelines and ensure data quality using strong SQL skills. The ideal candidate is autonomous and collaborative with a passion for using data to drive social impact. The position offers a competitive salary based on experience and a hybrid working model.

Qualifications

• Must be able to write SQL from scratch.
• Design-level collaboration with internal stakeholders.
• No consulting experience required.

Responsibilities

• Design and maintain scalable data pipelines using Azure Data Factory and SQL Server.
• Ingest and transform structured and semi-structured datasets.
• Implement monitoring and alerting systems.

Skills

Strong SQL expertise

Collaboration

Autonomous and self-sufficient

Tools

Microsoft SQL Server

Azure Data Factory

Python

Job description

Overview

A purpose-driven technology company is seeking a Senior Data Engineer to join its Platform Delivery team, supporting the development of data infrastructure that powers its core products. This is a hands-on role ideal for someone passionate about using data to drive social impact, with strong SQL skills, autonomy, and a collaborative mindset.

Responsibilities

• Design and maintain scalable data pipelines using Azure Data Factory and SQL Server, with a strong emphasis on writing and optimizing SQL code
• Ingest and transform structured and semi-structured datasets, applying advanced SQL queries to ensure data quality, performance, and governance
• Implement monitoring and alerting systems to ensure pipeline reliability and data integrity
• Collaborate with engineers, product managers, and infrastructure teams to align data components with platform architecture

Qualifications

• Strong SQL expertise: must be able to write SQL from scratch
• Experience with Microsoft SQL Server and ideally Azure SQL
• No consulting experience required
• Infrastructure knowledge not required (handled by a separate team)
• Communication: design-level collaboration with internal stakeholders including lead engineers and infrastructure
• Autonomous and self-sufficient
• Nice-to-haves: experience with ADF (Azure Data Factory), familiarity with Azure and Python (Python less relevant)

Details

• Start date: ASAP
• Contract type: 3–6 month contract
• Salary: Competitive, based on experience
• Working model: Hybrid, 2 days in office (London-based)