Role Title: Power System Planning Engineer
Reports to: Head of Networks
Location: Belfast (Hybrid)

About Us
SONI (System Operator for Northern Ireland) is Northern Ireland’s Transmission System Operator (TSO). We manage the electricity grid to ensure that power can flow from where it is generated to where it is needed. We are now transforming the power system for future generations. Be part of the change!

Our focus is on safety, security and reliability. Our work environment is challenging, fast-moving, collaborative and team orientated. Our culture is driven by performance, knowledge and continual development. Our people are committed to reducing Northern Ireland’s reliance on fossil fuels and making decarbonisation a reality – while providing a safe and reliable electricity supply in a way that secures the future for those who follow us. Our future has never looked more exciting. This is an incredible opportunity to be part of it. The world is ready for change. If you are too, join us.

The Role
We are seeking a highly motivated individual who is keen to play a key role in shaping how the transmission grid in Northern Ireland will evolve to support the transformation of the power system and enable the transition to a low carbon energy future in Northern Ireland.

As a Power System Planning Engineer, you will report to the Head of Networks and carry out technical analysis of the power system and optioneering of grid solutions for connections and network reinforcement projects in a coordinated, efficient and economic manner that meets the needs of Northern Ireland into the future.

Key Responsibilities

• Identifying future power system needs and possible solutions by carrying out power system analysis such as steady state load flow, voltage, short circuit and transient stability.
• Developing and appraising network reinforcement options across multiple criteria including technical, cost and environment, recommending the optimal solution.
• Carrying out benefit assessments.
• Assessing the optimal methods for connecting new generation, demand and enabling technologies to the transmission system.
• Using power system modelling software such as PSS/E, PowerFactory or similar.
• Liaising with customers, working closely with NIE Networks to deliver network reinforcement and customer connection solutions.
• Building strong and effective relationships with key stakeholders such as NIE Networks, the Utility Regulator and relevant government departments.
• Identifying and implementing efficiencies in existing processes and policies.
• Writing robust technical reports and governance papers and communicating these clearly to internal and external stakeholders.

What You’ll Need
Joining SONI as a Power System Planning Engineer, you’ll need:

Essential:

• University degree in engineering, or other relevant equivalent degree, with a minimum of 2 years relevant post graduate experience.
• Ambition to develop experience in power systems studies, including supporting the development of a transmission network to deliver net zero emissions.
• Be experienced in, or with knowledge of power system analysis such as steady state load flow, voltage and short circuit analysis.
• Ability to solve complex problems in a fast collaborative environment, demonstrating strong analytical and problem-solving skills
• Ability to work well within a team with flexibility in approach, including a strong ability to work under own initiative and to tight deadlines.
• Encompass strong communication and interpersonal skills, with an emphasis on high quality report writing and ability to communicate technical matters clearly and effectively to technical and non-technical audiences.
• Excellent written and verbal communication skills.

Desirable:

• Electrical Engineering degree.
• Proven understanding/good technical knowledge of the Northern Irish power system.
• Proficiency in performing power system analysis with tools such as PSSE and PowerFactory.
• Experience working in the electricity industry.
• Experience working in a regulated industry.
• Advanced level Excel skills for data analysis.
• Experience in Python coding.

Applicants should note that based on the response, SONI may increase the shortlisting criteria.

What You Will Get
This is an opportunity to lead and contribute to the advancement of a critical component of the energy infrastructure. The rewards package includes a competitive salary commensurate with experience, eligibility for an annual performance related payment, private medical provision, competitive pension with employer matching arrangements, a variety of salary sacrifice schemes (e.g. pension and cycle to work) together with hybrid working arrangements (3 days office: 2 days working at home), flexible start and finish times, competitive holidays and complimentary car parking with electric charging point on site. If you are seeking a challenging and impactful role within the electricity sector, we invite you to apply.

Submit your application by uploading your CV with a cover letter (in one document).

Please note that successful applicant will be subject to security checks.

Closing date for applications is 15 August 2025.

SONI is an equal opportunities employer. SONI IS NOT providing sponsorship for this role.