System Planning and Investment Engineer

SSEN Transmission; Perth; Hybrid; GBP 52,000 - 77,000; Full time

Benefits offered by this job

Flexible work options

Private healthcare discounts

Gym memberships

Cycle to work scheme

Family entitlements

Job summary

SSEN Transmission in Scotland is seeking a System Planning and Investment Engineer to join the System Optimisation Team. You will develop and apply optimisation models to the North Scotland transmission network, enabling low-carbon generation integration and supporting system security studies.

You will work with planning, outage, operations, and project teams, use PSSE/PowerFactory for model validation, and communicate results clearly to stakeholders and regulators.

Qualifications

• Experience in power system analysis, design and outage planning.
• Proficient with PSSE and PowerFactory or similar tools.
• Strong knowledge of the electricity industry interfaces with regulators and network operators.
• Ability to write clear and well-structured technical reports and network requirements for senior management.
• Degree (or equivalent) in Electrical Engineering, Power Systems, Mathematics, or related discipline.

Responsibilities

• Develop, maintain, and apply optimisation models for the transmission network to assess performance, operability, and constraints, ensuring robustness and traceability in modelling assumptions and outputs.
• Optimise network topology, energisation sequencing, outage strategies, and constraint management, while supporting studies related to system security and regulatory submissions.
• Build, update, and validate power system models with industry-standard tools (e.g. PSSE, DIgSILENT PowerFactory).
• Utilise data analytics and automation to enhance and support optimisation workflows and develop digital tools for scenario analyses.
• Work with planning, outage, operations, and project teams, plus external stakeholders to present results and ensure compliance with codes and standards.

Skills

Power system analysis

Data analytics

Technical reporting

Stakeholder communication

Education

Electrical Engineering degree

Tools

PSSE

PowerFactory

DIgSILENT

Job description

Base Location

Flexible Scotland | We're proud to offer a Flexible First approach to work, and this role is no exception. We will, however, need your base 'home' location to be one of our SSEN offices or depots in Perth or Glasgow.

Salary

£51,600 - £77,400 + performance-related bonus + a range of benefits to support your finances, wellbeing and family.

Working Pattern

Permanent | Full Time | Flexible First options available

The role

As part of our ongoing growth in Strategic Network Planning, we have an excellent opportunity for a System Planning and Investment Engineer to join the System Optimisation Team. In this role, you’ll be responsible for power system planning to integrate low‑carbon generation and related technologies into the North Scotland transmission network.

You will

• Develop, maintain, and apply optimisation models for the transmission network to assess performance, operability, and constraints, ensuring robustness and traceability in modelling assumptions and outputs.


• Optimise network topology, energisation sequencing, outage strategies, and constraint management, while supporting studies related to system security, constraint costs, curtailment impacts, and operational limits.


• Build, update, and validate power system models with industry‑standard tools (e.g. PSS®E, DIgSILENT PowerFactory), contributing to continuous improvement of analytical methods and modelling approaches.


• Utilise data analytics and automation to enhance and support optimisation workflows, enable repeatable analysis. You’ll also help develop digital tools to boost efficiency and support scenario analyses that assess system risk, cost, and resilience.


• Work with planning, outage, operations, and project teams, as well as external stakeholders (ESO/NESO, DNOs, Transmission Owners, regulators) to optimise activities. Present technical results, assumptions, and trade‑offs clearly to diverse audiences, making sure studies comply with codes and standards, and provide clear analysis for audits, regulatory submissions, and assurance processes.

You have

• Experience working in power system analysis, design and outage planning ideally within the Transmission area.


• Working knowledge of electrical theory and experience in using power system analysis tools such as PSSE, Power Factory or similar.


• Good knowledge of the electricity industry, including interfaces with generator and demand customers, the regulator, the Electricity System Operator, other Transmission Owners and Distribution Network Operators.


• Ability to write clear and well‑structured technical reports and network requirements and provide focused information for senior management.


• Degree (or equivalent experience) in Electrical Engineering, Power Systems, Mathematics, or a related discipline

About SSE

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 Transmissions own and operate the electricity transmission network across the north of Scotland. We transport energy from where it is generated to where it is needed, ensuring a safe and reliable electricity supply for the communities we serve. But that’s not all – we’re upgrading the grid to deliver cleaner, homegrown energy for the future and building a network for net zero to create secure power for generations to come.

Flexible Benefits To Fit Your Life

Enjoy 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. As well as generous family entitlements such as maternity and adoption pay, and paternity leave.

Work with an equal opportunity employer

SSE will make any reasonable adjustments you need to ensure that your application and experience with us is positive. please contact Andy on [e-mail] / 01738 275370 to discuss how we can support you. 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.