Senior Data Engineer
First seen by Alion on Nov 3, 2026.
Data Engineer - NO SPONSORSHIP OFFERED.
Target Start Date: ASAP
Contract Type: Permanent
Salary Range: Competitive (DOE)
Location: Eastleigh or London office (2 days a month required on site)
We are currently seeking Senior Data Engineers to join our innovative Data team. You will join a collaborative team of data and AI engineers, scientists, developers, analysts, and architects. Together, you will design and build modern machine learning and AI services that support analytics and improve products across the business.
Experience with PySpark, Python, SQL and DataBricks (or Snowflake) is required for these roles.
It's a chance to work on a very modern tech stack and learn from an incredible team.
Main Responsibilities as Senior Data Engineer:
- Build and support data products within our modern data platform
- Design and deliver solutions with engineers, scientists and product teams
- Develop and optimise data pipelines across the analytics platform
- Integrate data from varied sources with strong quality standards
- Maintain orchestration, monitoring and performance of data components
- Improve engineering processes across the wider data community
- Promote high coding and data practice standards
- Experiment with emerging data, ML and AI technologies
- Partner with architects on data product designs
- Work collaboratively in multi-functional agile squads
- Support ML and GenAI infrastructure and workflows
Skills and experience you need as Senior Data Engineer:
- Passion for building scalable, resilient cloud data platforms
- Strong experience with Databricks or Snowflake on AWS
- Proven Python skills, including Spark and Airflow expertise
- Advanced SQL skills and end-to-end data modelling experience
- Experience building batch and real-time data integrations
- Hands-on CICD skills with Git, Jenkins or similar
- Ability to ingest, cleanse and structure large, diverse datasets
- Knowledge of Terraform or similar IaC tools
- Experience with Docker and Kubernetes is beneficial
- Exposure to production Generative AI is an advantage
- Strong collaboration skills and a proactive attitude
The business offers a wide range of benefits to support you and your family inside and outside of work, which helped us achieve Top Employer status in the UK.
Here are some of the benefits you can enjoy:
Flexible Working
Smart Working gives employees flexibility around location (as long as it's within the UK) and, for many of our roles, flexibility within the working day to manage other commitments, such as school drop offs etc. We also offer all our vacancies part-time/job-shares. We also offer a minimum of 35 days holiday (inc. bank holidays) and you can buy and sell days.
Supporting your Health
Dental Insurance, Health Cash Plan, Health Screening, Will Writing, Voluntary Critical Illness, Mental Health First Aiders, Well Being Activities, Mindfulness.
Supporting your Wealth
50% off esure and Sheilas' Wheels motor and home insurance, Annual Bonus Schemes, Annual Salary Reviews, Competitive Pension, Employee Savings, Employee Loans.
Supporting you at Work
Well-being activities, mindfulness sessions, Sports and Social Club events and more.
Supporting you and your Family
Maternity/pregnant parent/primary adopter entitlement of 16 weeks at full pay and paternity/non-pregnant parent/co-adopter at 8 weeks' full pay.
Benefits for Them
Partner Life Assurance and Critical Illness cover.
Get some Tech
Deals on various gadgets including Wearables, Tablets and Laptops.
Getting around
Car Salary Exchange, Cycle Scheme, Vehicle Breakdown Cover.
Supporting you back to wo rk
Return to work programme after maternity leave.
If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV.
If this job isn't quite right for you, but you are looking for a new position, please contact us for a confidential discussion about your career.
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