Junior Data Engineer

Hays Technology
London, United Kingdom
Today
£310 pd

Salary

£310 pd

Job Type
Contract
Work Pattern
Flexible
Work Location
Hybrid
Seniority
Junior
Education
Degree
Security Clearance
Required
Posted
21 Apr 2026 (Today)

Junior Data Engineer - Public Sector

Contract: Initial 7 months (extension possible)

Rate: £310 per day, Inside IR35

Location: Remote with travel to Waterloo (2-3 days per month)

Security Clearance: SC‑eligible (5 years UK residency required)

I am working with a key consultancy delivering a major UK public sector programme and are looking for a Junior Data Engineer / Scientist to join a mixed delivery team building and operating secure, reliable data platforms that support critical public services.This role is designed for someone early in their data career who wants to develop strong engineering fundamentals in a real production environment.

The role - a junior, generalist data engineering position. This is an engineering‑led role, not a specialist or senior position. The team is ideally looking for a generalist in their first few years within data engineering or data science, who is building breadth across data platforms, pipelines and operations.

You'll focus on:

Designing, building and maintaining data pipelines

Supporting the operation of data lakes and data warehouses

Implementing and improving ETL / ELT processes

Using Python and SQL to transform, validate and move data

Working with analysts and developers to turn data requirements into technical solutions

Monitoring data quality, documenting data models and lineage, and resolving issues

Automating data workflows and operational tasks

Participating in Agile delivery, sprint work and collaboration

Supporting incidents and helping improve platform reliability over time

Working within public sector data governance, security and privacy standardsThis role offers exposure to how data platforms are built, operated and supported in a regulated environment - forming the foundations of a long‑term data engineering career.

What this role is not

To avoid misalignment, it's important to be clear about what this role is not focused on:

❌ Not a Data Analyst role

❌ Not a Power BI / dashboard developer role

❌ Not an insight, reporting or MI position

❌ Not a modelling, ML or research‑focused role

❌ Not an LLM, AI or advanced data science roleWhile you may work alongside analysts and data scientists, this role does not centre on:

Building dashboards

Producing insights or reports

Statistical modelling

Predictive or machine learning solutionsThe emphasis is on data engineering foundations and platform delivery.

Ideal candidate profile

This role is best suited to someone who:

Is in their first few years of a data engineering or data science career

Wants to build core engineering skills rather than specialise immediately

Has hands‑on experience with SQL and Python

Understands basic data modelling and ETL concepts

Is comfortable learning through delivery in a production environment

Is interested in how data platforms work end‑to‑end, including operations and support

Is keen to grow within public sector data platforms

Who this role is unlikely to suit

This role is unlikely to be appropriate for candidates who:

Are very senior data engineers or architects

Have primarily worked in advanced ML, AI, or research‑focused roles

Are specialised Power BI, reporting or MI developers

Are looking for a role centred on analysis, insights or modelling

Are seeking leadership, ownership of platform strategy, or advanced optimisation workApplications that demonstrate significant seniority or deep specialisation rather than junior‑to‑mid generalist experience may not be progressed.

Required skills and experience

Your CV should clearly demonstrate:

A degree in a technical discipline (Computer Science, Data Science, Mathematics or similar)

Hands‑on experience with SQL

Experience using Python, Java or Bash

Understanding of ETL processes and data modelling fundamentals

Experience with version control (e.g. Git)

Comfort working in Agile / DevOps environments

Awareness of data security and privacy

Eligibility for UK SC clearance

Nice to have (but not essential)

Exposure to AWS, Azure or GCP

Familiarity with tools such as Airflow, dbt, Spark

Awareness of CI/CD pipelines or containerisation

Experience in public sector or regulated environments

Important note for applicants

This role is deliberately positioned as a junior, generalist data engineering role. Please ensure your CV clearly demonstrates hands‑on data engineering fundamentals, rather than senior leadership, advanced AI/ML work, or analytics‑only experience.

Hays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C's, Privacy Policy and Disclaimers which can be found at (url removed)

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