Data Analyst

Position: Data Analyst - Performance
Our Vacancy# Data Analyst – Performance
* Nuclear* Permanent / Digital
* Bridgwater* United Kingdom
* 23/01/26
* On site
* Share##

Job Description Job Purpose / Overview The
** 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.

Key Responsibilities
* 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 Dev Ops
** 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 Contextual Information 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
** Essential* 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 Desirable
* Professional qualification in Business Analysis
* Professional qualification in Data or Analytics
* Experience working in
** nuclear, asset-intensive, or safety-critical industries
** Join Assystem and become a key player in delivering critical nuclear projects that shape the future of energy. Embrace this opportunity to…