HV Critical Systems Director

_Do you want to push the boundaries of your profession and develop your excellence in an open, collaborative, and empowering culture?_

_If this sounds like you, or you’re curious to learn more, then this role could be the perfect opportunity. Join ourCritical Systems Team as our new Technical Director – Critical Systems and work with us to close the gap to a sustainable future._

_Your new role_

_As our newTechnical Director – Critical Systems , you will play a pivotal role in leading and developing Ramboll’s electrical design capability across the Industrial, Healthcare, Government, Marine, and infrastructure sectors._

_You will provide specialist expertise inHigh Voltage (HV) systems up to 33 kV , Low Voltage (LV) networks, and critical power systems including UPS and standby generation. You will also guide clients in improving resilience, redundancy, and reliability , while supporting the decarbonisation and electrification of private networks._

_Your work will cover the full lifecycle of private power distribution systems, from concept and feasibility studies through detailed design, commissioning, and operational optimisation._

_Key areas of focus will include:_

• _Design and specification ofHV substations up to 33 kV, including switchgear selection, transformer sizing, protection coordination, and earthing system design._
• _Production and review ofsingle-line diagrams (SLDs) and network protection studies , ensuring compliance with ENA, IEC, and BS standards._
• _Technical leadership forresilient electrical systems , incorporating redundancy topologies (N+1, 2N) and mitigation of single points of failure._
• _Guidance onprivate HV network connections to Distribution Network Operators (DNOs), including G99/G100 compliance , load flow analysis , and fault level management._
• _Supporting clients infuture-proofing their electrical infrastructure for low-carbon technologies such as battery storage, renewable integration, and electric vehicle charging._
• _Leadingtechnical assurance and governance to maintain the highest standards of quality across all electrical deliverables._

_Your key responsibilities will be:_

• _Act as theUK electrical subject matter expert for all Critical Systems projects up to 33 kV._
• _Lead concept, feasibility, and detailed designs forHV and LV power distribution systems in mission-critical and industrial environments._
• _Develop and reviewequipment specifications , protection philosophies , and earthing and bonding designs._
• _Undertake and reviewnetwork modelling and analysis , including:_
• _Protection coordination studies_
• _Short-circuit and fault level calculations_
• _Load flow and power quality studies_
• _Arc flash hazard analysis_ _and mitigation strategies_
• _Use and oversee studies usingETAP, Trimble, or equivalent power system analysis software._
• _Providetechnical due diligence and assurance on electrical infrastructure projects._
• _Supportenergy resilience and decarbonisation planning , integrating renewables and backup systems within client estates._
• _Collaborate with other Ramboll disciplines to deliverintegrated, sustainable, and technically robust solutions._

_Your new team_

_You will join a skilled, multi-disciplinary technical team working alongside project managers and engineers across multiple offices and regions. You’ll be thego-to authority on HV systems and resilient electrical design , supporting colleagues in delivering technically excellent and sustainable outcomes for clients._

_Our team’s mission is to improve theefficiency, reliability, and sustainability of electrical infrastructure while supporting the UK’s net-zero transition. We work across the project lifecycle — from feasibility studies through to detailed design, commissioning, and operational optimisation._

_About you_

_From the moment you start at Ramboll, we’ll support your professional development and continued learning through access to our global networks and technical communities._

_For this role, success will come from a combination ofdeep technical expertise , leadership capability , and commercial awareness._

_Qualifications and skills that will set you up for success:_

• _Degree inElectrical Engineering or a related discipline, with experience in HV and LV design._
• _Proven experience inprivate HV networks up to 33 kV , including substation design, switchgear specification, and protection coordination._
• _Chartered Engineer (CEng) status, ideally with theIET._
• _Proficiency inpower system analysis software such as ETAP, Trimble or equivalent._
• _Demonstrated capability inprotection studies, fault analysis, load flow, and arc flash assessments._
• _Strong understanding ofresilience and redundancy architectures (N+1, 2N) and their application to critical systems._
• _Experience withDNO interfaces , G99 compliance , and relevant ENA standards._
• _Knowledge oflow-carbon and energy transition technologies , including battery energy storage systems (BESS) and renewable integration._
• _Excellent communication and stakeholder management skills, with the ability to translate technical detail into clear commercial and operational outcomes._

_What we can offer you_

• _Be valued for the unique person you are._
• _Never be short of inspiration from colleagues, clients, and projects._
• _The long-term thinking of a foundation-owned company._
• _Flexible work environment._
• _27 days annual leave plus bank holidays._
• _Matched pension contributions._
• _Private medical cover and life assurance._

_Work at the heart of sustainable change_

_Ramboll is a global architecture, engineering, and consultancy company. We believe that sustainable change is about creating a thriving world for both nature and people._

_Our Critical Systems team is driving innovation inresilient electrical infrastructure and low-carbon power networks up to 33 kV , enabling clients to deliver reliable operations while progressing toward a sustainable, net-zero future._

Ready to join us?

Please submit your application. Be sure to include all relevant documents including your CV, cover letter, etc.

“ _We recognise that some candidates only apply when they tick every box. However, passion and potential often outweigh a perfect resume and Ramboll’s supportive learning culture can help you grow. So if this role resonates with you but you don't meet all the requirements, we encourage you to apply. You might be the perfect fit for this opportunity or another within our team.”_

Thank you for taking the time to apply! We look forward to receiving your application.

Ramboll in the United Kingdom

Founded in Denmark, Ramboll is a foundation-owned people company. Ramboll has a proven track record of sustainable and responsible business and is a top ten engineering and environmental and sustainability consultancy in the UK, with more than 1,500 employees across 16 offices working towards a more sustainable future. Ramboll experts deliver innovative solutions across Buildings, Transport, Environment & Health, and Energy. Strong values guide what we do and drive an inclusive, collaborative, and highly flexible culture that values people and ideas. Explore and nurture your own passion, expertise, and creativity at Ramboll through work that benefits our people, partners, nature, and society.

An equal opportunity employer

Equality, diversity, and inclusion is at the heart of what we do. At Ramboll, we believe that diversity is a strength and that different experiences and perspectives are essential to creating truly sustainable societies. We are committed to providing an inclusive and supportive work environment, where everyone is able to flourish and reach their potential. We invite applications from candidates of all backgrounds and characteristics, in addition to the Protected Characteristics as set out in the Equality Act, (2010). As a Disability Confident Committed employer, Ramboll ensures opportunities are accessible to candidates with disabilities. Please reach out to our recruitment team to discuss any adjustments that you might require during the application process. We also know how important it is to achieve the right balance of where, when, and how much you work. When you join Ramboll, you’ll have the ability to work your hours flexibly through our positive and inclusive approach to work.

All your information will be kept confidential according to EEO guidelines.