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Searchability NS&D

Data Engineer

On site

London, United kingdom

£ 75 /hour

Freelance

13-02-2026

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Skills

Python NoSQL Big Data Apache Spark MySQL MongoDB Cassandra PostgreSQL Test Databases apache AWS Spark ETL Processes Kafka

Job Specifications

New Contract Opportunity for an eDV Cleared Data Engineer with a leading National Security Consultancy in London.

Active Enhanced DV Clearance required
£680 p/d inside IR35
12-month engagement
Full-time on-site in Central London

The Role:

You will design and deliver mission-critical data services for National Security clients. Working across AI, cyber security, cloud, big data and digital transformation initiatives, you will help shape the future of national security.

You will build and manage robust data pipelines that convert raw, diverse data sources (batch, streaming, real-time and unstructured) into reliable, analysis-ready datasets, using distributed computing techniques to process data at scale.

Responsibilities:

Design and build data ingestion pipelines and orchestration tooling.
Develop database schemas and data models.
Integrate and enrich data from multiple sources, ensuring quality and consistency.
Design and implement ETL processes (e.g. using NiFi).
Write clean, secure, test-driven code that is reusable by default.
Maintain and enhance data ingestion and storage architectures.
Investigate and resolve data issues within operational environments.
Translate user needs into clear technical requirements, supporting backlog refinement into epics and stories.
Implement appropriate data security controls.
Monitor, maintain and optimise data platforms to ensure performance and reliability.

Skills and Experience Required:

ETL development using Python or similar languages
Apache Spark, NiFi, or Kafka
Relational (PostgreSQL, MySQL) and NoSQL (MongoDB, Cassandra) databases
AWS and cloud-based data services
Palantir Foundry
Stakeholder Engagement

Why Apply?

Work on mission-critical UK Government projects with real-world impact
Join a leading consultancy known for innovation and technical excellence
Long-term engagement with competitive day rate and secure on-site environment

About the Company

Some things require specialist expertise and industry knowledge, and with an accelerating skills shortage coupled with an ever increasing clearance shortage, we are set up to deliver just that. Whether it's partnering with globally leading private sector companies or directly with government bodies across the country, we deliver a bespoke recruitment service with the kind of care, attention and integrity that the National Security & Defence industry demands. Specialisms: SOFTWARE ENGINEERING | SOFTWARE TESTING | CLOUD PLATF... Know more