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About Us

At the National Energy System Operator (NESO), we play a vital role in tackling climate change and securing Great Britain's energy future. We already operate the world's fastest decarbonising electricity system and are working towards our ambition to run it carbon-free for a short period this year - provided the market supplies electricity exclusively from renewable sources. Alongside this, we provide expert advice to government on how to deliver a clean power system by 2030.

In autumn 2024, the Electricity System Operator (ESO) transitioned to become NESO - an independent, expert public corporation with a whole-system view across electricity, gas, and hydrogen. NESO operates independently and transparently, always actin in the best interests of all energy users.

Licensed and regulated by Ofgem, we make impartial decisions that balance sustainability, affordability and security. Our organisation is fully independent from government, the regulator and all commercial interests, with a clear focus on system-wide benefit, long term thing and public value.

The time to deliver is now. Join the energy transformation and help shape the future.

Your energy. Our future. Together

National Energy System Operator (NESO) recognises the potential of bright and talented individuals, and we encourage you to join us as Great Britain’s energy system undergoes an ambitious, exciting, and vital transformation. Together with industry, we are creating a cleaner, more sustainable energy future.

About The Role

NESO is seeking a Data Quality Lead (Technical) to support and enhance our organisation-wide data quality capabilities. This role plays a key part in enabling trusted, reliable data for analytics, operations, regulatory reporting and AI-driven decision-making.

You will lead the design, development and operationalisation of technical data quality services—including profiling, monitoring, rule development and automation—ensuring NESO’s data is accurate, consistent, and fit for purpose. Working closely with stakeholders across Data & AI, Engineering, and business domains, you will translate data requirements into measurable data quality standards and oversee the performance and integrity of key datasets.

This is a unique opportunity to shape the future of data quality in NESO, embedding best‑practice tooling, processes, and controls to support our long-term data and AI ambitions.

This role is based in Warwick and would require you to be in the office 2 days a week.

This role is designated as requiring a National Security Vetting (NSV) clearance. The level of clearance associated with the role is Security Check (SC). You will usually need to have been a resident in the UK for the last five years to apply for an SC clearance. We would invite any applicants who do not currently meet this residency requirement to still express an interest in the role.

Key Accountabilities

  • Develop, maintain and operationalise technical data quality services, including:
  • Creating, executing and optimising technical DQ rules
  • Managing data profiling and monitoring pipelines
  • Maintaining dashboards and DQ metrics
  • Ensure the accuracy, consistency and integrity of NESO data by embedding DQ standards, controls and automated checks.
  • Collaborate with data owners, engineering teams and business stakeholders to understand data requirements and implement fit‑for‑purpose DQ solutions.
  • Define, monitor and report on data quality KPIs, producing clear, actionable insights for senior leaders and governance forums.
  • Contribute to continuous improvement of our DQ tools, processes and methodologies.

About You

We’re looking for someone who is passionate about data quality and its technical implementation

  • Strong passion for data, analytics and AI with a drive to uplift data quality maturity.
  • Hands‑on experience implementing data quality services (profiling, rule development, monitoring, lineage integration).
  • Ability to parse, manipulate and analyse large, complex datasets.
  • Experience working in cloud environments (Azure preferred; GCP desirable).
  • Knowledge of relational and non‑relational databases (e.g., MySQL, SQL Server, PostgreSQL, NoSQL).
  • Proficiency in programming languages (Python, R, Spark) for data transformation and automation.
  • Strong data visualisation capabilities; experience building intuitive dashboards (ideally Power BI).
  • Experience with enterprise data quality tools (Informatica, Ataccama, IBM, Precisely, etc.).
  • Experience working in Agile delivery teams.
  • Ability to communicate technical concepts clearly to both technical and non‑technical audiences.
  • (Desirable) Experience in the energy sector within analytics, data science or AI functions.

What You'll Get

A competitive salary of £65,000.00 dependent on experience and capabilityAs well as your base salary, NESO's core benefits are the essential perks and advantages that form part of your employee package. - You will receive a bonus based on company performance- 26 days annual leave as standard - A competitive contributory pension scheme where we will double match your contribution to a maximum company contribution of 12%. - Annual Enrollment to NESO Savings Plan, when you save between £20- £500 a month from your take-home pay, we will pay a 50% matching contribution.

Benefits

NESO's flexible benefits programme provides you with more flexibility around your helath, lifestyle and protection benefits, here's just a few available:

  • Flexible Bank Holidays & Holiday Trading
  • Additional Birthday Day Off
  • Cycle to Work Scheme, Retail & Gym Discounts
  • Private Medical Insurance, Critical Illness Insurance & Personal Accident Insurance

More Information

This role closes at 23:59, on the day before date shown above, however we encourage candidates to submit their application as early as possible and not wait until the published closing date as this can vary.

Research shows that some people may hesitate to apply unless they meet every single requirement. At NESO, we believe potential comes in many forms and we're committed to a fair, inclusive recruitment

We're committed to building a workforce that represents the communities we serve, and a working environment in which each individual feels valued, respected, fairly treated, and able to reach their full potential. If this role sparks your interest but you're not sure you tick every box, we still want to hear from you. process where everyone has the opportunity to shoe their talents. We celebrate the difference people can bring into our organisation, and welcome and encourage applicants with diverse experiences and backgrounds.