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Jn Bentley

Primary Electrical Design Engineer

Company logo
Jn Bentley
Civil engineering and construction contractor specialising in integrated water and environmental projects.
Primary Electrical Design Engineer responsible for producing electrical layouts for substations, cable route layout drawings, LV layouts, site earthing layouts, etc. and contributing to the production of specifications for major items of plant and equipment.
14d ago
Experienced (8-12 years), Junior (1-3 years), Intermediate (4-7 years)
Full Time
Sheffield, England, United Kingdom
Onsite
Company Size
1,800 Employees
Service Specialisms
Construction services
Civil engineering
Water utilities design and build
Environmental design and build
Project management
Innovation and technology in construction
Sector Specialisms
Civil Engineering
Mechanical Expertise
Electrical Expertise
Water Sector
Environmental Engineering
Water and Wastewater Treatment
Water and Wastewater Networks
Storm Overflows
Role
What you would be doing
bus bar design
site layout design
earthing design
equipment support
ducting design
specification design
  • Produce bus bar calculations (short circuit forces / wind / ice loading) to determine the most appropriate busbar size and support requirements.
  • 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.
  • Produce earthing layouts for sites at all voltage levels from first principles that can be verified by the earthing designer.
  • Design of equipment support structures for AIS electrical equipment from 66kV to 400kV to convey requirements to the manufacturer and review / approve manufacturers drawings.
  • 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 from 11kV to 132kV and ideally up to 400kV.
  • Contribute to the production of specifications for major items of plant and equipment such as disconnectors, CT’s, VT’s, SA’s, PI’s and for more complex items such as circuit breakers.
What you bring
electrical engineering
initiative
primary design
hv ac design
132kv ais
66kv ais
  • A Degree/HND/HNC in Electrical Engineering (Power Systems Electrical preferred).
  • Ability to take the initiative, demonstrate a pro-active approach to activities and problems
  • 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 under G81 by the host DNO;
  • 132kV AIS substations
  • Demonstrate a sound understanding of typical engineering documents such as, but not limited to, ENATS 41-24, NGTS RES i3, NGTS 3.02.014 RES, NGTS 2.01 RES, NGTS 1, NGTS 3.01.02, BS 50522, BS7430 and a demonstrable working understanding of G81 standards and DNO’s approved equipment registers.
  • 66kV AIS substations
  • Understanding of cable installation types, their requirements and installation parameters i.e. flexible or rigid arrangements, minimum bending radii etc.
  • Understanding of industry HV and EHV substation installation standards and specifications.
Benefits
  • 26 days holiday plus bank holidays with the option to buy and carry over
  • Health cash plan
  • Private medical insurance
  • Flexible pension contributions up to 5% employee 10% employer
  • Life assurance of 4 x salary
  • Income protection
  • Annual professional institution subscription costs
  • 33kV switchrooms and control rooms
Training + Development
Information not given or found
Interview process
Information not given or found
Visa Sponsorship
Information not given or found
Security clearance
  • previous experience of primary electrical design with a consultancy, contractor or utility in the power industry.
  • employment verification.
  • education verification.
Company
Overview
£2 billion projects
Total Projects Delivered
The company has delivered over £2 billion worth of projects across the UK since joining a major group.
£300m turnover
Annual Revenue
Achieved a significant milestone with a ~£300 million turnover in 2022, reflecting strong growth.
100+ excavators
Operational Fleet
Maintains a large fleet of specialized equipment, including over 100 Kubota excavators.
1972 founded
Year Established
Began operations in 1972, marking the start of its long history in civil engineering and construction.
  • In the mid‑1970s it expanded into general building, then turned to pipelines and pumping stations in the 1980s.
  • By the 1990s its civil‑engineering focus deepened, culminating in the 1999 launch of a major JV partnership.
  • Typical projects span water infrastructure, hydroelectric power, industrial buildings, highways and coastal works.
  • Clients include major water companies, Environment Agency, Canal & River Trust, Rolls‑Royce, P&G and Associated British Ports.
  • The 2013 merger with JBA Consulting formed a new entity offering integrated low‑carbon environmental solutions.
Culture + Values
  • We are committed to the safety, health, and wellbeing of our people.
  • We value continuous improvement, fostering innovation, and embracing new technologies.
  • We take pride in delivering quality and excellence in everything we do.
  • We work collaboratively with our customers and stakeholders to achieve mutual success.
  • We are dedicated to creating a culture of respect, trust, and integrity.
Environment + Sustainability
Net-zero by 2050
Carbon Emissions Goal
Achieving net-zero carbon emissions by 2050.
  • Sustainability is integrated into project delivery processes.
  • Reduces energy consumption, waste, and resource usage.
  • Supports projects that protect and enhance the environment.
  • Monitors and reports on environmental performance.
Inclusion & Diversity
  • Strives to create a diverse and inclusive workplace.
  • Supports a range of initiatives to improve gender balance.
  • Focuses on increasing the number of women in leadership roles.
  • Has set targets to improve the gender balance across all levels of the business.
  • Actively works to ensure equal opportunities for all employees.
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