National Energy System Operator
Senior Data Scientist

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About the Role
National Energy System Operator (NESO) are looking for Data Scientists to join our Energy Insights & Analysis (EIA) team. This role will play a key part in managing the data, and in maintaining and delivering the models that underpin our long-term view of gas, electricity and hydrogen supply and demand and the UK’s 2050 net zero emissions target.
You will play a key part in developing our ability to model how the energy requirements of tomorrow will evolve and be met. You will work closely with your colleagues to understand their requirements and develop solutions that meet these needs. You will work closely with our technology partners to ensure that the platforms and data are in place to support the work that we do.
In addition, you will contribute to the wider transformation and continuous improvement of the functioning and outputs of the wider Energy Insights and Analysis team.
This role can be based from Wokingham, Warwick or Glasgow 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
- Understand the needs of the business and developments needed to meet net zero targets
- Engage with stakeholders at all levels to gather and understand their requirements
- Identify where existing models or processes need to adapt to reflect these
- Employ relevant computer science, economic, statistical programming and data management skills to solve business problems
- Work collaboratively with analysis teams and technology partners to deliver models, tools and business process improvements that facilitate efficient use of the models and data available
- For higher levels – Mentor and guide others across the team and department on model development and ways of working
- For higher levels – Drive changes to ways of working around modelling, quality assurance, and technology deployment in a coordinated fashion
- For higher levels – Lead on projects across the department and wider business, identifying opportunities and proactively progressing them to improve accuracy, transparency, and turnaround time
Applicants must have the right to work in the UK by the start of employment. Visa sponsorship may not be available for this role and will be considered in line with business requirements.
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About You
We’re forging the path, and we know we can’t do it alone. That’s why we need visionary minds like yours to join us on this transformative journey. In this case, we’re looking for someone who:
- An ability to handle challenges and meet tight deadlines
- Advanced programming skills in Python, Excel, and SQL
- Experience in building and evaluating predictive models
- An inquisitive mind with the ability to join the dots
- Excellent interpersonal and communication skills
- Experience of communicating with, and influencing, internal and external stakeholders at a range of levels
- Ability to work with a wide range of people to drive forward delivery
- Project management and planning skills to ensure activities, deliverables and deadlines are met on time whilst ensuring high quality
- Experience with the cloud computing platforms, such as MS Azure or Palantir Foundry, is desirable
- A strong background and interest in the future of energy (especially decarbonisation) is desirable
What You'll Get
- A competitive salary of £61,000 - £72,000 dependent on experience and capability
- 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.
NESO's flexible benefits programme provides you with more flexibility around your health, 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
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.


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Your very own career expert that helps elevate your application to the next level.
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 acting 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 thinking 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.
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 process where everyone has the opportunity to show their talents. We celebrate the difference people can bring into our organisation, and welcome and encourage applicants with diverse experiences and backgrounds. If this role sparks your interest but you're not sure you tick every box, we still want to hear from you.
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.
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