Data Engineer - NESO

National Energy System Operator
Wokingham
4 days ago
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About the Role

National Energy System Operator’s (NESO) strength lies in our people. Together, we’re shaping the future where clean, affordable energy is accessible for all. Every day is an opportunity to make a real difference, accelerating the progress of sustainable GB energy, keeping people connected and society thriving as we create a brighter tomorrow.


As a key Data Engineer, you will be instrumental in revolutionising how NESO's Electricity National Control Centre (ENCC) manages, validates, and leverages real‑time operational data. You will play a critical role in improving how we utilise data, ensuring access and data pipelines are accurate and reliable across the ENCC. This is about building the intelligent infrastructure that underpins a greener, more resilient energy system.


You will design and build robust new data connections, enabling NESO to operate a complex, decentralised, and renewable‑heavy power system with unwavering confidence. From developing end‑to‑end data pipelines and validation frameworks to implementing automation solutions, your work will ensure the accuracy, completeness and timeliness of critical data – from telemetry and SCADA to market submissions and network parameters.


You will also be crucial in identifying gaps in our data needs and working with other teams to assess opportunities to strengthen the data foundation. In addition, you will develop innovative data products by transforming legacy data and replacing outdated, manual processes with robust, automated solutions. This role offers deep insights into real‑time operations and the wider energy industry's challenges.


This role is based in Wokingham and we continue to offer hybrid working from office and home. We are open to full‑time and part‑time applicants, as well as flexible working arrangements.


Key Accountabilities

  • Pioneering Real‑time Data Pipelines: Define and execute our data engineering strategy for the control room, designing, building and maintaining operational data pipelines for real‑time and near‑time source systems.
  • Innovating Data Products: Develop and implement automated rule‑based data ingestion, cleaning and validation systems.
  • Fostering Leadership & Capability Development: Mentor and upskill junior colleagues, guide operational teams on effective data usage and contribute to best‑in‑class data engineering standards and code modifications.

About You

  • Master’s or Bachelor’s degree in Computer Science, Data Management, Systems Administration or a related field, with hands‑on experience in data engineering.
  • Strong experience with leading tools such as Databricks, Spark, Kafka, Airflow, Azure Data Factory or Kinesis.
  • Proficient in Python and SQL, with a proven ability to build scalable batch and streaming pipelines.
  • Experience with API integration, microservices and robust data transformation frameworks.
  • Deep understanding of data modelling (star schemas, entity modelling, event‑driven architectures) and hands‑on experience with data validation frameworks and automated testing.
  • Excellent problem‑solving skills, especially under pressure, and a commitment to continuous improvement.
  • A natural collaborator, capable of working with both technical and non‑technical stakeholders and influencing across engineering, markets, digital and control operations.
  • A genuine passion for establishing new capabilities and a strong willingness to learn, particularly around operational and real‑time data.

What You'll Get

A competitive salary between £60,000 – £75,000 – dependent on experience and capability. In addition to your base salary, you will receive a bonus based on company performance, 26 days annual leave as standard and a competitive contributory pension scheme where we double‑match your contribution to a maximum company contribution of 12%.


We also provide full support and career‑development resources, a diverse and inclusive community of belonging, generous total rewards and opportunities for professional and personal growth.


About Us

In Autumn 2024, the ESO transitioned to National Energy System Operator, or NESO for short. Previously denoted as the Future System Operator (FSO), the new NESO is the independent body responsible for planning Great Britain’s electricity and gas networks and operating the electricity system. Our new capabilities will enable us to look across vectors, including electricity, natural gas and hydrogen, and consider trade‑offs between them.


The organisation is a public corporation with its own Board of independent directors, with complete operational independence from government, the regulator and any commercial interest. We are licensed and regulated by Ofgem.


More Information

This role closes on 19th January at 23:59, however we encourage candidates to submit their application as early as possible.


Please note: This role requires a National Security Vetting (NSV) clearance with Security Check (SC) level. Applicants must have been a resident in the UK for the last five years to apply. We invite those who do not currently meet this residency requirement to still express interest; the Personnel Security team will assess eligibility on a case‑by‑case basis.


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