Capacity Market Controller

Be part of the change. We are transforming the power system for future generations. We aim to attract and develop outstanding talent. Join us to play a part in the future of energy in Northern Ireland.

Who We Are

SONI is Northern Ireland’s Transmission System Operator. We are the people behind Northern Ireland’s electricity grid. We make sure that every home, business, school, hospital, factory and farm has power - when and where they need it. Our focus is on safety, security and reliability. Our work environment is challenging, fast-moving, collaborative and team orientated. Our culture is driven by continual development, knowledge and teamwork. Our people are committed to reducing Northern Ireland’s reliance on fossil fuels and transforming the energy system to make decarbonisation a reality – while providing a safe and reliable electricity supply in a way that secures the future for those who follow us.

The Role

As a Capacity Market Controller, you will support the management and delivery of key processes within the Capacity Markets team. You’ll help prepare and analyse information, coordinate activities, and ensure that important deadlines—set out in industry rules and codes—are met. You’ll work closely with your counterparts in EirGrid and collaborate with Analysts, Coordinators and Senior Controllers to keep all parts of the process running smoothly. This role is ideal for someone organised, detail‑focused, and keen to build experience in the energy sector.

Key Responsibilities

• Support the day‑to‑day operation of Capacity Market Registration, Qualification, and Reporting
• Respond to internal and external queries within agreed timeframes
• Contribute to internal and external audits
• Help onboard and support training for team members
• Provide updates and reporting to the Senior Controller and Manager
• Coordinate with external user groups and follow up on actions
• Organise customer meetings and ensure clear, timely communication
• Deliver high‑quality work within agreed timelines
• Work collaboratively with EirGrid colleagues to ensure consistent processes

Critical Knowledge, Skills and Experience

Essential:

• Degree in Business, IT, Finance, Engineering or similar, typically with 1–2 years’ relevant experience
• Experience coordinating and delivering key tasks within a team
• Strong relationship‑building skills with internal and external stakeholders
• Excellent time‑management and organisational skills
• Clear and confident communicator
• Good numeracy and analytical skills
• Strong attention to detail
• High level of proficiency in Microsoft applications
• Ability to work to tight deadlines
• Ability to work effectively as part of a small team

Desirable:

• Experience in the energy or power systems sector
• Engineering background
• Experience presenting to large groups

Why join us?

• Play a vital role in shaping sustainable energy projects that benefit communities and the environment.
• Enjoy a competitive salary, performance-related bonus, private medical cover, and pension matching.
• Benefit from flexible working arrangements, including hybrid options (3 days office / 2 days home).
• Enhanced holidays, maternity and paternity leave and wellbeing days.
• Access salary sacrifice schemes (such as cycle to work, EV scheme), free car parking, onsite EV charging and complimentary lunch.
• Access professional development opportunities and clear career progression pathways.
• We offer an inclusive culture that values diversity, supports flexible working and empowers you to grow.

Closing date for applications is 28 August 2026. SONI is proud to be an equal opportunities employer. We value diversity and are committed to fostering an inclusive workplace where everyone can thrive. We particularly encourage women to apply, as they are currently underrepresented in our organisation.