Senior Data Engineer

Assystem is an international company with one mission: accelerate the energy transition around the world.
Every day, our 7,500 switchers located in 12 countries (Europe, Middle East, Pacific Asia & Africa) connect their six thousand billion neurons to tackle the task of the century: switching to low-carbon energy.
We are a collective committed to the actors who are making the energy switch. Sharing our knowledge, expertise and values allows us to innovate and think differently about the energy transition.
Drawing on more than 55 years’ experience in highly regulated sectors subject to strict security and safety requirements, we provide our customers with engineering and project management services, as well as digital services and solutions to optimise the performance of complex infrastructure projects throughout their life cycle. The Group is currently ranked third in the world for nuclear engineering.
To ensure a viable, efficient, and reliable energy future for all.
Job Description

Location:

Hybrid with UK travel |

Sector:

Defence & Infrastructure |

Clearance:

SC Required
Are you a technically sharp, consultative data engineer ready to work on mission-critical infrastructure? We are hiring a Senior Data Engineer to support a major UK Nuclear Defence Infrastructure client, helping to revolutionize how data—especially BIM (Building Information Modelling)—is harnessed across the asset and project lifecycle.
Your future team:
In this specialist role, you’ll join a high-performing team focused on transforming complex engineering datasets into actionable insights. You’ll design and deliver robust data solutions that support decision-making, asset management, and regulatory compliance in a highly secure, regulated environment.
Your missions:
Designing and building scalable ETL pipelines to integrate BIM and infrastructure data from diverse systems.
Structuring and enriching complex datasets for reporting, insight, and operational use.
Developing data models and maintaining databases that underpin asset and lifecycle intelligence.
Enabling data storytelling through Power BI dashboards and the Microsoft Power Platform.
Collaborating with engineers, BIM coordinators, and asset managers to define high-impact data use cases.
Diagnosing data quality issues and integration gaps—and implementing practical fixes.
Acting as a subject matter expert on BIM data transformation in regulated environments.
Why join the community of Switchers?
As one of the Top 3 Nuclear Engineering companies in the world, Assystem offer a competitive benefits package which includes:
25 days of annual leave + bank holidays
8% company pension contributions
Healthcare cash-plan to get money back on dental, medical, physical care
Employee assistance programme including 24/7 access to free mental health support, virtual gym classes and more
Get professional and industry membership fees paid for.
My profile

Essential qualifications/skills to be successful:
Active SC Clearance (or eligibility and willingness to obtain).
Proven experience as a Senior Data Engineer, ideally within BIM, construction, or manufacturing sectors.
Advanced proficiency in:
MS SQL – for database development and optimization
Python – data workflows, automation, transformation
Strong grasp of relational database design and data warehousing principles.
A consultative approach, with the ability to engage technical and non-technical stakeholders.
Comfort working with sensitive data in secure, regulated environments.
Desirable qualifications/skills to be successful:
Experience with Azure or similar cloud platforms.
Knowledge of industry data standards (e.g., IFC, COBie, BS EN ISO 19650).
Familiarity with the engineering asset lifecycle—from design to maintenance.
Experience leading or guiding modern data warehouse implementations.
Ready to apply your skills where they matter most?
Apply now and help us shape the future of data in defence infrastructure.
This role requires the successful candidate to hold (or be able to obtain) a minimum of a Security Check (SC) clearance without any caveats to that clearance.
Due to the nature of work this role will be delivering and for the protection of certain assets, the successful candidate has to be a sole UK national
We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people’s ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future.
Are you a prospective or recent graduate?

Assystem offers you the opportunity to join our Switch to Grow UK Graduate Scheme, where you’ll gain hands on experience in engineering, digital services, and project management by working on some of the world’s most critical energy projects.
Be part of the challenge of the century; accelerating the switch to low carbon energy!

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