Data Engineer
Date Posted: 09/01/2026
Location: London
Job Type: Full time
Apply NowData Engineer
Location: London- hybrid
Contract: Permanent
Hours: Full time- 35 hours
Purpose of the role
The Data Engineer plays a key role in delivering reliable, high-quality data for business operations, insights, regulatory reporting, and partner reporting. This role focuses on designing, building, and automating data pipelines and solutions that enable secure, scalable access to data across the organization.
About Just
We help people achieve a better later life. That’s our purpose and it’s the reason we exist. We are a fast-growing company helping customers enjoy the retirement they deserve. We do this through a variety of market leading, award-winning products and services, delivered by a diverse team of over 1,400 purpose-led colleagues who genuinely put the customer at the heart of everything we do.
This is a brilliant time to join our business. We are on an exciting growth journey to become the UK’s most loved retirement expert.
Key Accountabilities
Design & Build Data Pipelines – Develop and maintain robust ETL/ELT workflows and integration solutions aligned with enterprise architecture and data strategy.
Collaborate on Requirements – Work with business and technical teams to translate requirements into scalable data engineering solutions.
Ensure Data Quality & Governance – Implement best practices for data health, metadata management, and compliance using tools like Microsoft Purview.
Optimize & Innovate – Continuously improve performance, adopt new technologies, and recommend enhancements for efficiency and scalability.
Document & Support – Maintain clear technical documentation and provide operational support, including troubleshooting and incident resolution.
Security & Compliance – Ensure adherence to security standards and regulatory requirements (e.g., GDPR, ISO 27001).
Examples of Key Activities
Build & Deploy Pipelines – Design, develop, and test ETL/ELT workflows using Azure Data Factory and Databricks for efficient data ingestion and transformation.
Data Transformation – Apply PySpark or SQL-based transformations to curate data layers (Bronze, Silver, Gold) following Medallion Architecture.
Performance Optimization – Monitor and tune clusters, queries, and pipeline configurations to improve efficiency and reduce costs.
Governance & Metadata – Maintain data lineage and compliance standards using Microsoft Purview and organizational policies.
Testing & Quality Assurance – Validate data accuracy through unit/integration testing and peer reviews to ensure best practices.
Monitoring & Support – Troubleshoot pipeline issues, resolve incidents, and provide operational support for data platform services.
What we're looking for:
Proven experience in a data analytics or engineering role, preferably within Financial Services
Strong experience with Microsoft Azure services, including Data Factory, Databricks, Data Lake Storage Gen2, and Azure SQL Database
Proven ability to design and implement ETL/ELT pipelines, data ingestion, and transformation across multiple sources
Proficiency in Python, SQL, and PySpark for data processing and automation
Hands-on experience with Spark and Delta Lake for scalable data processing and performance optimization
Knowledge of Lakehouse architecture, metadata management, and compliance standards (e.g., GDPR)
Familiarity with Agile ways of working (Scrum, Kanban) and collaboration in cross-functional teams
Experience with Git, Azure DevOps, and CI/CD pipelines for data solutions
Our behaviours
At Just you’ll have the opportunity to develop your career, whilst making a difference to the lives of those around you. You’ll be part of a company with a strong and distinctive culture - we’re ambitious, curious and collaborative – and every decision we make centres around being Just and delivering the best outcomes for our customers.
What’s in it for you
A competitive salary, pension scheme and life assurance
25 days annual leave plus an additional day on us for your birthday
Private medical cover and income protection, just in case
A generous and highly achievable bonus scheme
Opportunities to progress your career in-role and within the company
Free access to the Headspace app, 24/7 employee assistance helpline and trained physical and mental health first aiders
A variety of employee funded benefits available via our online benefits portal
Plus, several additional purchase options available for you and your loved ones
Explore our full range of benefits on our dedicated benefits page.
Belonging at Just
Valuing diversity of thought and fostering a sense of belonging is critical to our business success, driving innovation and balanced decision making. Our work on DEIB (Diversity, Equity, Inclusion and Belonging) aims to deliver a brilliant employee experience underpinned by a sense of belonging, where our people feel proud to work at Just.
We remain committed to our publicly disclosed HM Treasury Women in Finance Charter and Race at Work Charter targets and support a wide range of employee network and events, championing issues including intergenerational working, social mobility and neurodiversity.
Application details
Please submit your CV using the 'apply now’ button. Shortlisted candidates will be contacted regarding next steps which may include an initial phone interview and in-person assessment.
Be Bold. Be Brilliant. Be Just