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Data Analyst - Performance
Assystem
- Bridgwater, England, United Kingdom
- Bridgwater, England, United Kingdom
About
Performance Analyst
plays a critical role in analysing business performance, identifying data and capability gaps, and enabling data-driven decision making across the organisation. Acting as the conduit between business stakeholders, data architects, and technical delivery teams, the role ensures that business requirements are translated into high-quality data products that deliver strategic value. The Performance Analyst supports the end-to-end lifecycle of data and analytics solutions, from problem definition and requirements capture through to delivery, insight generation, and communication. Analyse and understand business data, identifying gaps across
people, processes, systems, and information
to guide decision-making and data product development Analyse business problems and opportunities, capturing clear and structured requirements within the requirements database Identify data gaps and define data requirements required for ingestion into the analytics platform Communicate insights, findings, and conclusions using appropriate formats, including data visualisations and reports Support architecture and technical delivery teams to ensure data products meet business requirements Use
agile delivery methodologies , leveraging
Azure DevOps
to manage user stories, tasks, dependencies, risks, and issues Perform end-to-end analytical activities including data discovery, profiling, validation, transformation, analysis, and interpretation Raise open issues relating to operating models or data products to the
Information Design Authority (IDA)
open issues register for review and resolution The Performance Analyst is one of four roles within an
Information Management Pod
and acts as the primary interface between business stakeholders and the technical delivery teams. The role supports communication at both strategic and technical levels, ensuring alignment between business objectives, architecture, and data delivery. All activities are governed by the
Information Design Authority (IDA)
process, which ensures consistency between requirements, architecture, and technical outputs. Any deviations identified during delivery are formally captured and managed through the IDA governance framework. This role is suited to an analytical thinker who can translate technical complexity into clear business insight, ensuring the Information Management team delivers robust, compliant, and value-driven data solutions. Qualifications, Knowledge & Skills Degree-level qualification or equivalent experience in a relevant discipline (e.g. Business, Data & Analytics, Engineering, Computer Science, Economics, or similar analytical field) Demonstrable experience leading
requirements definition, process mapping, and problem-framing
within data-centric programmes or transformations Experience working within
multidisciplinary teams Proven ability to analyse complex business processes and identify data gaps using structured techniques (e.g. As-Is / To-Be, swimlanes, use cases, decision modelling) Strong experience performing end-to-end analytical work, including data discovery, validation, analysis, and communication Working knowledge of
SQL , sufficient to write queries, explore datasets, validate transformations, and troubleshoot basic issues Ability to read and interpret
Python
code used for data processing or analytics, with the capability to modify simple scripts if required Experience working on projects or programmes in
structured, controlled environments
with formal governance and change control Professional qualification in Business Analysis Professional qualification in Data or Analytics Experience working in
nuclear, asset-intensive, or safety-critical industries Additional Information Join 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. Hybrid Working – Flexibility to work from home and the office Buy & Sell Holiday – Make your time off work for you 8% Company Pension Contributions 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 ❤️ Volunteer Days – Make a difference on company time 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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Languages
- English
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