Primary Electrical Design Engineer

Internal applicates are welcome.Work patters: Full time or part timeJN Bentley is a fully integrated design and build business with access to the design expertise of Mott MacDonald with the contracting experience of JN Bentley, operating across energy, water and environment sectors throughout the UK. With an annual turnover surpassing £500 million, Mott Macdonald Bentley cements its position as a leader within the industry. The sustained, robust business performance creates an ideal environment for career growth.JN Bentley are currently looking for a Primary Electrical Design Engineer to join our growing battery energy storage system (BESS) team. You will provide subject matter expertise and collaborate with an experienced and knowledgeable team of engineers and designers, as well as supporting and mentoring junior members of the team.As part of the wider design team, the role of the Primary Electrical Design Engineer is to lead the production of electrical layouts for substations (including AIS / GIS up to 400kV), cable route layout drawings & sections, LV layouts, switch room and control room equipment layouts and site earthing layouts etc. This dynamic role will be hybrid and involve a combination of site, office and remote working.As part of Mott MacDonald Group, JN Bentley are in a unique position to offer turnkey design and build project delivery. The role will offer the opportunity to work closely with specialist designers and also with construction and commissioning teams to ensure the successful end-to-end delivery of the project.As Primary / Senior HV Electrical Design Engineer you will: Determine the base electrical site layout for a project covering adoptable and private assets, accounting for the need to bring external services / connections to each item of plant or equipment, and in compliance with project DNO / IDNO / client requirements.Help to co-ordinate systems studies, assisting with compiling and communicating information for these to be completed and ensuring that outputs are incorporated into the detailed design and associated equipment specifications.Contribute to the production of specifications for major items of plant and equipment such as disconnectors, CTs, VTs, SAs, PIs and for more complex items such as circuit breakers and transformers, and approval of manufacturer information.Design of equipment support structures for AIS electrical equipment from 66kV to 400kV, including conveying requirements to the manufacturer, and approval of manufacturer information.Lead the electrical design integration of inverters, BESS enclosures, PCS units, transformers and auxiliary systems to the grid connection point.Produce site wide ducting / cabling layout drawings, coordinating requirements with other engineering disciplines. The candidate should have a working knowledge of cable types and installation techniques, ideally from 11kV up to 400kV.Develop earthing layouts for sites at all voltage levels, from first principles, that can be verified by the earthing designer.Work closely with other design disciplines to efficiently and effectively deliver integrated complex design solutions.Liaise with and support the installation and commissioning teams to ensure that the system is installed and tested in accordance with the design.Contribute to development of standardised systems, processes, designs and specifications.What you can offer:A Degree/HND/HNC in Electrical Engineering (Power Systems Electrical preferred). Previous experience of primary electrical design with a consultancy, contractor or utility in the Power industry.Experienced in the design of HV AC power systems. Have demonstrable experience in producing electrical layout drawings for substations, switchrooms, control rooms and balance of plant projects that may be privately owned or have elements adopted by the host DNO;11kV distribution networks22kV distribution networks33kV switchrooms and control rooms66kV-400kV AIS substationsA working understanding of industry HV and EHV substation installation standards and specifications, including a demonstrable working understanding of TO / DNO specifications.A working understanding of cable installation types, their requirements and installation parameters.The ability to take the initiative, demonstrate a pro-active approach to activities and problems.What’s in it for you:Financial wellbeing  MMB match employee pension contributions between 4.5% and 7%.  As an independently owned business we share the financial success of the business with all our colleagues including our annual bonus schemes.  Payment of annual professional institution subscription costs. Health and wellbeing  A minimum of 33 days holiday each year, inclusive of public holidays, with the ability to buy, sell or carry over annual leave through our flexible benefits programme.  Access to Life Assurance / Private Medical Insurance / Critical Illness Insurance and Health Screening options. We are happy to talk openly about flexible working and how we can support your responsibilities beyond the workplace.  Join a wide range of groups including our Advanced Employee Networks which support our LGBTQ+, gender, race and ethnicity, disability, and parents/carers communities.  Enhanced family and carers leave  Enhanced family leave policies, including 26 weeks paid maternity and adoption leave, and two weeks paid paternity/partner leave plus the option for shared parental leave.  Up to 2 paid additional days leave are provided for those with significant caring responsibilities.  Learning and development  MMB are committed to empowering our people to grow professionally and thrive in their careers. We offer structured development schemes that support your journey toward professional chartership. From day one, employees are fast-tracked towards chartership reviews and benefit from mentorship, hands-on experience, and tailored training opportunities.  Mott MacDonald Bentley are not currently offering sponsorship to candidates under the Skilled Worker visa route in the UK. This decision is as a consequence of the changes made to the Skilled Worker route by the UK Government in April 2024. We continue to welcome applications from candidates who are eligible for alternative immigration routes in the UK, that do not require sponsorship as a Skilled Worker now or in future.

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