Senior Engineer - Fixed Term Contract (Operations) in Belfast

We are looking to hire a Senior Engineer – Fixed Term Contract (Operations) at EirGrid Group.

Reports to: Head of System Operations

Location: Belfast (Hybrid)

Duration: 30‐month Fixed Term Contract

Closing date for applications: 12 noon on 16 January 2026

About Us

SONI as Transmission System Operator (TSO) is responsible for the safe, secure and reliable supply of electricity – now and in the future. We play a pivotal role in the economy of Northern Ireland, supporting competition in energy, promoting economic growth, facilitating renewable energy and providing essential services. The transmission grid delivers power from generation to industries and homes across the island, and we work closely with EirGrid & the National Energy System Operator. We operate the Single Electricity Market (SEM) and are at the forefront of innovations in the industry, transitioning towards a low‐carbon, technology‐enabled smart future.

The Team

The Operations Directorate is central to the delivery of our primary role – the operation, development and enhancement of the power system and the wholesale electricity market. SONI Operations is also responsible for the sustainable implementation of transmission system and market development to meet the future needs of all users of electricity. We offer roles in system analysis, technical policies, control‐centre readiness, grid and network code management, technical audits and compliance, and more.

System Operations Function

The core activity of SONI as the TSO for Northern Ireland is to keep the lights on through meticulous planning and engineering analysis such as load‐flow studies, in advance of and during real‐time operation. The team develops, tests and incorporates operational systems, tools, services, standards and policies required to operate the power system, integrate new technologies and manage outages, voltage control, generator testing, scheduling, risk management and alarms, ensuring the grid remains within operational security standards. They facilitate reporting, post‐event audits and the development of strategies to guarantee security of supply.

Markets, System Support and Analysis Function

This function facilitates the lifecycle of grid connections – from commissioning to decommissioning – managing tariffs, imperfections and derogations. The team oversees grid and network codes, validates plant for system services, conducts daily performance analysis of renewable and conventional units, and handles market data publication. They also execute techno‐economic modelling to evaluate operating costs, translate findings into tariffs and system charges, and provide analytical support for regulatory consultations.

About You

• Engineering degree or equivalent, with a minimum of 4 years post‐qualification experience in power system operations.
• Ability to work collaboratively with customers and both internal and external stakeholders.
• Skills to guide, persuade and influence others through effective communication and diplomacy.
• Excellent interpersonal skills and a proven ability to work effectively as part of a team while also being able to define and guide their own work under minimal supervision.
• Excellent organisational skills and a strong track record of delivery.
• Ability to develop and progress innovative proposals and solutions.
• Good oral and written communication skills with the ability to explain technical concepts to a non‐technical audience.
• Strong work ethic, excellent organisation skills and attention to detail.
• Demonstrated flexible working approach with ability to prioritise a wide range of demands and activities while maintaining a professional and positive focus.
• Comfortable with large data sets, able to analyse them to draw conclusions.

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.
• We encourage discussions about how this role could work for you.

We are looking for a challenging and impactful role within the energy sector. If you are ready to help shape the future of SONI and deliver a cleaner, more secure energy future for everyone living in Northern Ireland, we would love to hear from you.

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.

We have a duty to prevent illegal working and applicants must demonstrate they have a legal right to work in the UK. SONI is not providing sponsorship for this vacancy.