Network Performance Specialist in Portsmouth

This is an exciting opportunity for a Network Performance Specialist to play a key role in ensuring the accuracy and integrity of network performance data. The role focuses particularly on the Interruptions Incentive Scheme (IIS) and NAFIRS (National Fault and Interruption Reporting Scheme), covering both planned and unplanned outages. You will work with a wide range of internal and external stakeholders, offering excellent exposure across the business while developing both technical expertise and professional relationships.

We are looking for an individual with excellent communication skills who can tailor their approach to different audiences and present complex information clearly and effectively. A strong attention to detail is essential, along with the ability to identify and resolve data discrepancies.

• Lead weekly Network Performance reports, including auditing, correcting and providing feedback on HV and LV NAFIRS data, ensuring compliance with Ofgem requirements.
• Produce monthly reports, conduct audits, provide feedback and support to Control staff, Dispatch, CCC teams, management, and regional teams.
• Ensure integrity of NAFIRS data and support accurate IIS reporting through audit checks and validation.
• Support improvements to systems and processes through testing and implementation.
• Manage HSE reporting (Reg 31 & 32) submission process in line with ESQCR requirements.
• Ensure data is accurately reported, validated and audited prior to submission to Ofgem for planned supply interruptions.
• Ensure GS is correctly applied and reported.

• Strong understanding of DNO operations and Ofgem regulation.
• Knowledge of Ofgem price controls and IIS.
• Experience in auditing, reporting and compliance.
• Strong analytical and problem‑solving skills with attention to detail.
• Experience working with regulatory bodies such as Ofgem.
• Knowledge of safety rules, policies, and compliance requirements.

SSE's purpose is to provide energy needed today while building a better world of energy for tomorrow. We do this by developing, building, operating and investing in electricity infrastructure and businesses needed in the energy transition. Our Transforming for Growth investment plan sees us investing £33bn in critical electricity infrastructure across the five years to 2030. SSEN Distribution, part of the wider SSE group, powers 3.9 million UK homes and businesses. Our team of more than 4,200 skilled engineers, customer service advisors and energy experts keep customers connected to a safe, reliable supply of electricity while investing in and developing the flexible networks needed for our low carbon future.

• Discounts on private healthcare and gym memberships.
• Wellbeing benefits like a free online GP and 24/7 counselling service.
• Interest‑free loans on tech and transport season tickets, or a new bike with our Cycle to Work scheme.
• Generous family entitlements such as maternity and adoption pay, and paternity leave.

SSE will make any reasonable adjustments you need to ensure that your application and experience with us is positive. We're dedicated to fostering an open and inclusive workplace where people from all backgrounds can thrive. We create equal opportunities for everyone to succeed and especially welcome applications from those who may not be well represented in our workforce or industry.

Start your online application using the Apply Now box on this page. We only accept applications made online. We'll be in touch after the closing date to let you know if we'll be taking your application further. If you're offered a role with SSE, you'll need to complete a criminality check and a credit check before you start work.