National Energy System Operator
Data Assurance Lead

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About the Role
As Data Assurance Lead, you will provide second-line data assurance across NESO, ensuring compliance with all data standards. This role is pivotal in safeguarding data integrity, driving adherence to governance frameworks, and supporting NESO’s commitment to robust data management practices. You will act as a trusted advisor, challenging and validating first-line controls to maintain high standards of data quality and compliance.
This role can be based from Warwick or Wokingham, and we continue to offer hybrid working from office and home.
Key Accountabilities
- Apply second-line assurance across NESO to monitor and validate compliance with published data standards.
- Develop and maintain assurance frameworks, methodologies, and reporting mechanisms to identify risks and gaps.
- Provide independent oversight of data governance activities, ensuring alignment with NESO’s strategic objectives.
- Collaborate with first-line teams to address findings, recommend corrective actions, and track remediation progress.
- Produce clear, actionable assurance reports for senior stakeholders, highlighting compliance status and risk exposure.
- Champion continuous improvement in data assurance processes and contribute to the evolution of NESO’s governance model.
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.
About You
We’re setting the benchmark for data integrity across NESO, and we know robust assurance is key to success. That’s why we need strategic thinkers and governance champions like you to help us strengthen compliance and drive excellence. In this role, we’re looking for someone who has:
Experience:
- Proven track record in data governance, assurance, or audit within complex organisations.
Reasons to use Rodeo
I’m in my final year doing Economics and I don’t know whether to apply for grad schemes now or do a masters first. What do you think?
Honest answer — it depends on where you want to end up. A lot of top grad schemes (Big 4, civil service, banking) don’t need a masters. Let’s look at the ones you’d be competitive for now, and we can decide if a masters actually adds anything.
Also worth knowing: most autumn 2026 applications are open now. Timing matters more than you think.
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Why you're a good match
StrongYour economics background and your summer at a regional bank line up with what PwC looks for on the consulting scheme. Applications close in four weeks.
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Why you're a good match
You’ve got the grades and the economics background, and your bank internship is exactly the experience this scheme looks for. Apply soon — deadlines close within the month.
Experience fit
Your summer at the bank plus your econometrics coursework map directly to the day-one responsibilities on this scheme — client modelling, market briefings, and deal support.
Only hits
No noise. No "maybe this fits." Just roles with a clear explanation of why they're right — and where to focus when applying.
Knowledge:
- Strong understanding of data standards, data risk and control frameworks, and regulatory compliance requirements.
Skills:
- Analytical and detail-oriented with the ability to interpret complex data governance requirements.
- Excellent stakeholder engagement and influencing skills.
- Ability to challenge constructively and drive improvements.
Technical:
- Familiarity with data management tools, assurance methodologies, and reporting systems.
Attributes:
- Proactive, resilient, and committed to maintaining the highest standards of data integrity.
What You'll Get
- A competitive salary of £57,000 - £67,000 dependent on experience and capability
- 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.
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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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 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.
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.
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