Data Analyst (Fixed Term Contract to 31.03.27)

Company Overview ​ Xoserve is the UK gas industry’s Central Data Services Provider, playing a critical role in supporting the safe, efficient and reliable operation of Britain’s gas market. It provides a single, trusted source of industry data and services for gas suppliers, shippers and transporters, ensuring information is accurate, secure, and consistently shared across the sector. By managing the central gas register and providing insight on gas flows across the network, Xoserve helps the industry balance supply and demand and supports effective market processes that benefit consumers. As the energy system transitions, Xoserve is committed to enabling affordable, accessible decarbonisation by supporting the integration of green gas and biomethane into the UK’s energy mix. Xoserve is an equal employment opportunity employer, and we are building a diverse, inclusive, and authentic workplace for everyone. ​ Role Summary ​ Reporting to the Service Manager (Data Services), the Data Analyst (Fixed-Term Contract) will play a key role in delivering data quality improvement initiatives across the organisation. ​ The role is responsible for conducting detailed analysis of address data and related datasets to assess data quality, identify trends and uncover opportunities for improvement. Through detailed data analysis and insight generation, the Data Analyst will support the identification and prioritisation of data cleansing activities, helping to improve the accuracy, consistency and integrity of address data. ​ Working closely with business stakeholders and the wider project team, the role will contribute to the development of recommendations, controls and validation frameworks that strengthen data management practices. The Data Analyst will translate complex data findings into clear, actionable insights, enabling informed decision-making and supporting the successful delivery of project objectives and long-term data quality outcomes.​ ​ ​ Responsibilities • Analyse large and complex datasets to identify data quality issues, trends, anomalies and opportunities for improvement. ​ • Develop, maintain and enhance reports, dashboards and analytical outputs to support project delivery and informed decision-making. ​ • Partner with business and technical stakeholders to understand existing data processes and identify opportunities for optimisation. ​ • Conduct root cause analysis of data quality issues and recommend practical, sustainable solutions to improve data accuracy and integrity. ​ • Support the identification, prioritisation and execution of data cleansing and remediation activities. ​ • Present analysis, insights and recommendations clearly and effectively to both technical and non-technical audiences. ​ • Collaborate with project teams to support process reviews, business change initiatives and implementation activities. ​ • Produce clear and comprehensive documentation of analytical methodologies, findings, assumptions and recommendations. ​ • Define and implement data quality metrics, KPIs and monitoring frameworks to measure and track improvements over time. ​ • Ensure all analytical outputs comply with data governance standards, security requirements and relevant regulatory obligations. ​ • Review and strengthen data processes, controls and validation mechanisms to support the ongoing quality and integrity of organisational data. ​ ​ ​ Specialist/Technical Expertise Essential • Experience analysing and interpreting large datasets to identify data quality issues, trends, anomalies and opportunities for improvement. ​ • Strong analytical and problem-solving skills, with the ability to investigate issues, identify root causes and recommend effective solutions. ​ • Experience using SQL to query, validate and analyse data from multiple sources. ​ • Advanced Microsoft Excel skills for data analysis, manipulation and reporting. ​ • Experience developing reports, dashboards and data visualisations using tools such