Investment Performance Analyst

Date:  16 Sept 2026
Location: 

Bristol, GB, BS34 8YU

Company:  National Gas
Requisition ID:  3221

Investment Performance Analyst

£44,088 to £51,868 + up to 6% bonus

Bristol (Hybrid) with travel to Warwick as required

 

Please note we expect high volumes of applications for this role - please don't delay your application as we may close this advert earlier than planned due to high competition

About us

At National Gas, the work we do matters.  

As Britain's national gas network, we help keep the lights on, businesses running, and homes warm by maintaining the critical infrastructure that transports gas across Great Britain. While providing the energy security Britain relies on today, we're also helping transform the network for a clean energy future. 

 

Join us and help secure Britain's energy. 

About the role

The Investment Performance Analyst plays a key role in supporting regional investment planning and performance management through the provision of high-quality analytics, reporting, and insight. The role is responsible for assuring data quality, interpreting complex performance information and providing evidence-based recommendations that support effective operational and planning decisions. Working across a range of stakeholders, the post holder helps drive continuous improvement in reporting and performance management and deputises for the Investment Performance & Strategy Manager where required.

Why this role matters

As an Investment Performance Analyst, you will play a key role in ensuring investment decisions deliver measurable value, providing insight and analysis that supports strategic investment across National Gas. Your work will help drive informed decision-making, optimise performance, and contribute to the delivery of a secure and sustainable energy future.

What you'll be doing

  • Produce and coordinate accurate, timely performance reporting across the regional investment portfolio.
  • Analyse complex performance data to identify trends, risks, opportunities and the underlying causes of performance variances.
  • Provide clear, evidence-based insight and recommendations to support operational, planning and investment-related decision making.
  • Assess, reconcile and validate data from multiple sources, ensuring performance information is accurate, consistent and fit for purpose.
  • Investigate data quality and performance issues, working with stakeholders to identify root causes and implement sustainable solutions.
  • Develop and enhance reporting tools, dashboards and analytical processes to improve the quality and accessibility of business information.
  • Contribute to the continuous improvement of reporting, forecasting and performance management processes through the effective use of data and technology.
  • Build effective working relationships with Planning & Performance, Finance, Engineering, Delivery and other business stakeholders to ensure a consistent understanding of performance.
  • Communicate complex analytical findings clearly and confidently to a range of audiences, providing appropriate challenge and professional judgement where required. #LI-CW1 

What you'll bring

This role would suit someone who enjoys turning complex data into clear, actionable insights has a keen eye for detail. You'll be a collaborative problem-solver who is comfortable working with stakeholders to drive investment performance, support informed decision-making, is confident building complex analytical models and undertaking root cause analysis.

 

Qualifications

  • Degree, apprenticeship or equivalent experience in a numerate discipline such as business, economics, finance, engineering, mathematics, data analytics or a related field.

Experience

  • Demonstrable experience of performance reporting, business analysis, or financial analysis.
  • Strong analytical capability with experience working with large, complex datasets from multiple sources.
  • Experience of interpreting data and providing evidence-based recommendations to support decision-making.

What we offer

  • Market-leading double-match pension (up to 12% company contribution) 
  • Annual performance bonus up to 6% 
  • Access to the Tusker salary sacrifice car scheme  
  • 26 days holiday (plus statutory holidays) 
  • 10x salary life assurance and income protection  
  • Flexible benefits including healthcare, dental, and technology options  
  • Family-friendly policies, wellbeing support, and professional development opportunities 

Inclusive recruitment

We're building a workforce that reflects the communities we serve, championing diversity, and creating an inclusive workplace where everyone is valued for their unique contribution. We support reasonable adjustments throughout the recruitment process and beyond. 

  

National Gas is a Disability Confident employer and signatory of the Armed Forces Covenant.