Data Engineer

Our Vacancy# Data Engineer* Nuclear* Permanent / Digital* Bristol* United Kingdom* 23/01/26* On site* Share## Job Description The Job MissionThe Data Engineer is responsible for designing, building, testing, and operating robust data products that underpin Assystem’s analytics and reporting capability. Working as part of a multidisciplinary Information Management Pod, the role translates business and architectural designs into scalable, secure, and maintainable data solutions.The Data Engineer works closely with Performance Analysts and Data Architects to deliver high-quality data pipelines and products that enable trusted insight and decision-making across major nuclear programmes. Key Responsibilities* Review business objectives, requirements, and functional designs to assess feasibility and define appropriate technical implementation approaches* Design and engineer data products and services that integrate seamlessly with business systems and processes, aligned to architectural standards* Develop data products using Databricks, Power BI, and other appropriate technologies, applying robust, scalable, and maintainable engineering practices* Build and maintain ingestion, transformation, and load routines to support the organisation’s analytics platform* Test data products to ensure they meet functional, quality, performance, and security requirements* Operate and support live data products, improving cost, performance, and reliability through optimisation, monitoring, and continuous improvement* Support troubleshooting and resolution of data quality or performance issues across the data pipeline Contextual InformationThe Data Engineer operates within an Information Management Pod, delivering technical solutions based on architectures defined by the Data Architect and requirements captured by the Performance Analyst. The role is fundamental to ensuring that analytics platforms are supported by reliable, well-engineered data pipelines.All activities are governed by the Information Design Authority (IDA) process, which ensures consistency between requirements, architecture, and technical delivery. Any deviations identified during development or operation must be formally captured and managed through the IDA governance framework.This role suits an engineer who enjoys working in regulated, safety-critical environments and who can balance technical excellence with strong collaboration across business and delivery teams. Qualifications, Knowledge & SkillsEssential* Experience designing and developing data pipelines and products within an analytics or reporting environment* Strong working knowledge of SQL or Python for data transformation, validation, and troubleshooting* Experience developing and supporting data visualisation solutions (Power BI preferred)* Understanding of data integration, reconciliation techniques, and data quality controls* Strong analytical and numerical skills, with the ability to communicate technical concepts clearly to non-technical stakeholders* Ability to work independently, manage multiple priorities, and collaborate effectively across multidisciplinary teams* Proficiency with Microsoft Office tools* General engineering knowledge or experience working in engineering, construction, or asset-intensive environmentsDesirable* Experience using Databricks or similar cloud-based data platforms* Familiarity with data governance frameworks and working in highly regulated environments (e.g. nuclear, infrastructure, or safety-critical sectors)* Knowledge of advanced Power BI features and VBA for automation* Experience working within structured delivery environments with formal governance and change controlJoin Assystem and become a key player in delivering critical nuclear projects that shape the future of energy. Embrace this opportunity to excel in a dynamic environment where your expertise and leadership will drive global innovation. Your Benefits Package Hybrid Working – Flexibility to work from home and the office 25 Days Annual Leave + Bank Holidays Buy & Sell Holiday – Make your time off work for you 8% Company Pension Contributions Income Protection & 3x Salary Death-in-Service Cover Competitive Sick Pay – Support when you need it Healthcare Cash Plan – Claim back on dental, optical & more Free Digital Gym Access – Expert-led fitness classes Exclusive Discounts – Restaurants, days out & top brands 24/7 Employee Support Line – Mental health, financial & legal help Cycle to Work Scheme – Save money & go green Free Flu Jabs & Eye Test Vouchers Paid Professional Membership Fees Volunteer Days – Make a difference on company timeWe 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.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.
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