{"id":152125,"url":"https://alion.io/job/assystem-data-engineer","title":"Data Engineer","company":{"id":5278,"name":"Assystem","domain":"assystem.com","url":"https://alion.io/company/assystem","size_band":"5000+","is_staffing_agency":false,"employer_type":"services","is_intermediary":false,"listed_via":null,"ats_vendor":"SmartRecruiters","truth_index":{"grade":"B","score":76,"open_postings":231,"ghost_share":0,"stale_share":0.974,"repost_share":0,"time_to_fill_p50_days":28,"computed_at":"2026-10-30T05:48:23Z"}},"role":"Data Science","role_family":"Data Science","seniority":null,"employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Bristol, United Kingdom"],"countries":["GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":54000,"max_usd":122000,"period":"year","method":"role_country_seniority_unknown","sample_n":202},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Databricks","optional":false},{"name":"Microsoft Office","optional":false},{"name":"Power BI","optional":false},{"name":"Python","optional":false},{"name":"SQL","optional":false}],"status":"live","first_seen_at":"2026-01-23T17:01:37Z","employer_posted_date":"2026-01-23","last_verified_at":"2026-10-30T08:56:16Z","board_verified":true,"closed_at":null,"days_open":279,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":278},"description":"About Assystem\nAt Assystem, our mission is to accelerate the energy transition worldwide. Our 8,000 Switchers blend historical engineering expertise with cutting-edge digital technologies to drive this change. Join us in revolutionizing the energy sector and making a significant global impact.\nWhy Join the Community of Switchers?\nBe part of one of the top three largest nuclear engineering companies globally. At Assystem, you'll contribute to groundbreaking projects that push the boundaries of innovation and engineering excellence. Join a community committed to driving forward the future of energy.\nThe Job Mission\nThe 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.\nThe 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.\nKey Responsibilities\nReview business objectives, requirements, and functional designs to assess feasibility and define appropriate technical implementation approaches\n\nDesign and engineer data products and services that integrate seamlessly with business systems and processes, aligned to architectural standards\n\nDevelop data products using Databricks, Power BI, and other appropriate technologies, applying robust, scalable, and maintainable engineering practices\n\nBuild and maintain ingestion, transformation, and load routines to support the organisation’s analytics platform\n\nTest data products to ensure they meet functional, quality, performance, and security requirements\n\nOperate and support live data products, improving cost, performance, and reliability through optimisation, monitoring, and continuous improvement\n\nSupport troubleshooting and resolution of data quality or performance issues across the data pipeline\n\nContextual Information\nThe 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.\nAll 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.\nThis 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.\n Qualifications, Knowledge & Skills\nEssential\nExperience designing and developing data pipelines and products within an analytics or reporting environment\n\nStrong working knowledge of SQL or Python for data transformation, validation, and troubleshooting\n\nExperience developing and supporting data visualisation solutions (Power BI preferred)\n\nUnderstanding of data integration, reconciliation techniques, and data quality controls\n\nStrong analytical and numerical skills, with the ability to communicate technical concepts clearly to non-technical stakeholders\n\nAbility to work independently, manage multiple priorities, and collaborate effectively across multidisciplinary teams\n\nProficiency with Microsoft Office tools\n\nGeneral engineering knowledge or experience working in engineering, construction, or asset-intensive environments\n\nDesirable\nExperience using Databricks or similar cloud-based data platforms\n\nFamiliarity with data governance frameworks and working in highly regulated environments (e.g. nuclear, infrastructure, or safety-critical sectors)\n\nKnowledge of advanced Power BI features and VBA for automation\n\nExperience working within structured delivery environments with formal governance and change control\n\n Why Apply?\nJoin 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.\nYour Benefits Package\nHybrid Working - Flexibility to work from home and the office\n25 Days Annual Leave + Bank Holidays\nBuy & Sell Holiday - Make your time off work for you\n8% Company Pension Contributions\nIncome Protection & 3x Salary Death-in-Service Cover\nCompetitive Sick Pay - Support when you need it\nHealthcare Cash Plan - Claim back on dental, optical & more\nFree Digital Gym Access - Expert-led fitness classes\nExclusive Discounts - Restaurants, days out & top brands\n24/7 Employee Support Line - Mental health, financial & legal help\nCycle to Work Scheme - Save money & go green\nFree Flu Jabs & Eye Test Vouchers\nPaid Professional Membership Fees\nVolunteer Days - Make a difference on company time\nWe 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!.\nBring your unique contributions and help us shape the future.\nWe 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 !. 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