Senior Substation Engineer

Green GEN Cymru; Cardiff; Hybrid; GBP 67,500 - 82,500; Full time

Benefits offered by this job

Hybrid work structure

Flexible core hours

No meeting Fridays

28 days annual leave

Private Medical Insurance for family

Annual pay review and discretionary 2%

Employer pension contributions up to 7

Electric car salary sacrifice

Cycle to Work Scheme

Tech scheme for devices

Life assurance and income protection

Travel insurance

Team socials and charity events

Job summary

Green Gen Cymru in Cardiff, Wales invites an experienced Senior Substation Engineer to lead design across the network. You will coordinate with multidisciplinary teams, consultants, and clients to deliver robust, compliant substation solutions.

The role requires managing design changes, ensuring adherence to CDM, and supporting policy updates. Hybrid working options and a strong focus on delivery underpin the opportunity.

Qualifications

• Degree in electrical engineering or related field required.
• Proven track record delivering substation design for energy projects.
• Experience applying CDM and engaging with multiple stakeholders.
• Familiarity with ENA, Distribution Code and Grid Code standards.

Responsibilities

• Lead substation engineering design from concept to energisation for the network.
• Coordinate with other disciplines and departments to ensure robust design.
• Ensure compliance with CDM and applicable engineering standards throughout the project lifecycle.
• Support development of engineering procedures and policies for delivery.
• Report progress monthly to Head of Engineering and manage risks.

Skills

Substation design

Stakeholder engagement

Project coordination

English proficiency

Education

Bachelor's degree in electrical engineering

Job description

Application Deadline: 2 August 2026

Department: Engineering

Location: Cardiff/Edinburgh

Compensation: £75,000 per annum

About Green Gen Cymru

Powering a positive energy future for Wales.

At Green Gen Cymru, we’re acting now to build and operate a green energy network for Wales, that will make sure 100% renewable energy can flow to our homes, hospitals, schools, businesses, and communities. We’re playing a pivotal role in providing a reliable and robust distribution network that will tackle the energy crisis, climate crisis, as well as the cost‑of‑living crisis. It will also empower rural communities through investment, jobs, and skills, enabling communities to live modern electric lives. We want to make sure Wales has the energy it needs in a Net Zero world.

There’s endless potential for renewable energy in Wales – particularly from the wind that blows across our hills and mountains. But the green energy is stuck in the windy areas of Wales, and we need to get it to the homes, hospitals, schools, businesses, and communities that need it. To respond to this challenge and meet Welsh Government’s target for 100% renewable electricity in Wales by 2035, we’re developing a stronger, more resilient renewable electricity network that is greatly needed in Wales – distributing clean, green energy.

We want to build a positive, clean future for us all.

Key Responsibilities

THE ROLESALARY: Starting from £75,000 per annum (skills and experience dependent)

REPORTS TO: Head of Engineering

LOCATION: Cardiff, Wales (with flexible working options)

As the Senior Substation Engineer you will manage all aspects of substation design for the engineering team for Green Gen Cymru’s (GGC) network, engaging and supporting a multidisciplinary engineering team as they work with consultants, contractors, customers and other electricity network owners. You will support the GGC project development and project delivery team in all aspects of substation design and delivery to enable design and construction of the Green Gen Cymru network. The Senior Substation Engineer will be discipline lead for substation engineering and ensure the appropriate distribution voltage level standards are applied to the network design to ensure robust operation. This role has a key co‑ordination component with other engineering disciplines and other departments within Green Gen Cymru.

Main Responsibilities

• Manage the ongoing substation engineering design engagement from connection offer to energisation being the key engineering department contact for any substation engineering design matters for Green Gen Cymru’s network
• Manage substation engineering changes through design or compliance
• You will be responsible for the management of all aspects of the substation design engaging with other engineering disciplines where required
• Ensure any substation design work takes account of CDM and this is considered throughout the design and construction stages.
• Support with the creation and ongoing adherence of the engineering procedures and policies to ensure a high and consistent standard of design is applied to project development and delivery
• Attend working groups such as the ENA as a substation authority to support Green Gen Cymru’s network development
• Ensure compliance with the NESO grid code, ENA, Distribution code and any other applicable
• Support policy change to improve engineering design and drive efficiency with new or amended engineering policies and procedures
• Support the Head of Engineering to drive improvement, support reporting and promote the business objectives to the wider team
• Have accountability for substation design reporting to the Head of Engineering
• Take a proactive approach to meet programme deadlines co‑ordinating with other departments when required
• Accurately report progress each month to the Head of Engineering, including key activities linked to delivery and risk management
• Take a positive lead in developing relationships and working with other DNOs, TOs, NESO and Customers with regard to substation engineering
• Forge a positive working relationship with internal stakeholders, fostering collaboration across disciplines

Skills, Knowledge and Expertise

Knowledge & Skills

• Excellent communication and engagement skills when reporting, negotiating, or dealing individually with stakeholders and direct reports
• A high standard of written and oral English, with the ability to describe and provide clarity on engineering requirements to stakeholders
• Organised individual who can multi‑task and manage the engineering team across different projects
• Works well within a multidisciplinary project team environment

Experience & Qualifications

• Degree qualification in electrical engineering or relevant previous experience will be considered for this role
• You will have a proven record of accomplishment as an engineer in energy project delivery environment with experience preferred in a regulated network
• You will have a proven track record of managing engineering substation design from concept to delivery for energy projects
• Be experienced in the application of CDM to design activities throughout the project lifecycle
• Has experience of delivery to regulated engineering standards such as ENA, Distribution Code and Grid Code

Benefits

• Hybrid work structure available.
• The ability to work core hours and take time back in lieu throughout the week.
• Fridays are allocated as ‘no meeting’ days to ensure down time at the end of the week.
• 28 days annual leave, plus bank holidays.
• Private Medical Insurance from day 1 with cover for immediate family including spouse or partner and children, including direct mental health pathways and support.
• Annual pay review and discretionary bonus.
• Employer pension contributions up to 7%.
• Electric car scheme via salary sacrifice.
• Cycle to Work Scheme
• Tech scheme – discounts on latest technology including laptops, phones, iPads for personal use
• Life assurance cover and income protection.
• Travel insurance.Suite of enhanced policies and provisions to support colleagues through all the moments that matter.
• Regular team socials, activities, sporting events and charity fundraisers.