Senior Protection & Control; P&C) Design Engineer

The Team Are you an experienced Electrical Design Engineer with expertise in substation secondary design, including protection and control systems? We are looking for a Senior Engineer to lead detailed design projects supporting the energy transition and net-zero goals.

Cundall is a global engineering consultancy renowned for its innovative and sustainable design solutions across energy, infrastructure, and the built environment. With a history spanning over four decades, we deliver projects that shape the future of energy systems, from grid transmission and distribution to renewable energy and critical infrastructure.

Our Power Systems team specialises in high-voltage design, protection and control systems, and technical advisory services, delivering cutting-edge solutions for some of the most challenging and prestigious projects in the UK and internationally.

The Role As a Senior P&C Design Engineer, you will lead the design and delivery of protection and control systems, working on projects from concept through detailed design to final commissioning. Collaborating with multidisciplinary teams, you will design and integrate control and protection schemes for AIS/GIS substations from 33kV to 400kV.You will act as a technical authority on secondary design, mentor junior engineers, and support clients to deliver robust, compliant, and innovative solutions.

Responsibilities:

Lead and produce designs for secondary systems including protection, control, and SCADA schemes.

Develop AC/DC schematics, cable schedules, and termination diagrams.

Produce high-level specifications for protection, control, and SCADA systems, ensuring compliance with UK DNO/TO standards (e.g., National Grid, SSEN).Define protection philosophies and system integration for substation projects.

Oversee and review technical deliverables to ensure designs are safe, compliant, and aligned with client requirements.

Work with AutoCAD, or equivalent tools to produce detailed schematics and layouts.

Support the integration of protection and control systems with primary plant design.

Perform site visits to assess constructability and facilitate smooth project execution.

Collaborate across disciplines, including civil, structural, and primary plant teams, to deliver fully integrated solutions.

Develop and maintain relationships with clients, contractors, and suppliers.

Provide leadership in mentoring and coaching junior engineers.

Ensure health and safety risks are identified and managed in compliance with CDM regulations.

Key Deliverables:

Detailed Secondary Design Documentation:
Deliver comprehensive technical reports, schematics, and protection coordination studies.

Protection and Control Systems:
Develop designs suitable for projects from 33kV to 400kV, including offshore and transmission systems.

Site Surveys and Constructability:
Assess feasibility and address site-specific challenges to ensure successful delivery.

The Skills Essential

Skills:

Degree in Electrical Engineering or related field.

Chartered Engineer status (or working towards).Experience in secondary substation design for AIS/GIS systems up to 400kV.Proficiency in developing protection philosophies, relay settings, and SCADA integration.

Knowledge of UK DNO/TO standards, including National Grid and SSEN requirements.

Experience in producing AC/DC schematics, termination schedules, and system integration designs.

Desirable

Skills:

Experience with IEC 61850 communication protocols and advanced SCADA systems.

Proficiency with tools AutoCAD, or similar design software.

Experience in renewable energy projects such as BESS and offshore wind.

Familiarity with fault analysis and protection simulation software (e.g., ASPEN, DIgSILENT).Scripting knowledge (e.g., Python) for automation of design…