Senior HV Engineer in Chesterfield

NeoDyne is a leading engineering company specialising in industrial automation, digital manufacturing, and electrical engineering solutions. We develop high-availability automation and electrical systems for mission-critical industries, including pharmaceutical manufacturing, data centres, and energy infrastructure, ensuring continuous operation and compliance. Our expertise extends across power generation, natural gas transmission, and high-voltage system design, delivering robust solutions that strengthen critical infrastructure.

Within our Transmission & Distribution team, we deliver mission-critical design packages that transform the reliability, availability, and efficiency of the energy network, moving it towards a greener, more sustainable future.

Department highlights include:

• High Voltage design and delivery: We design AIS and GIS substations from 11kV to 245kV and contestable build and non-contestable stations. Connections include conventional and renewable Power Generation, Peaking, Battery Storage and Solar PV plants and large demand loads such as data centres and process plants.
• Low Voltage and Instrumentation design: NeoDyne is a gas network design framework supplier, playing a significant role in providing electrical and instrumentation engineering services for the on-shore Natural Gas Industry and Regulated gas utility sector in Ireland and the UK. Our expertise includes Compressor Station, AGI Electrical & Instrumentation design, Fiscal and non-Fiscal metering, and Cathodic Protection.

With a team of 220+ skilled engineers, our expertise spans the entire project lifecycle, from design and implementation to commissioning and operations. From our offices in Ireland, the UK, Romania, and the US, we operate on a global scale, combining technical expertise with local delivery. We support customers across Europe, North America, and Asia, delivering tailored engineering services that drive long-term success.

Position Summary

NeoDyne are recruiting a Control & Protection Engineer to join our expanding Transmission & Distribution team. The successful candidate will support the design, configuration, and commissioning of protection and control systems for substations, renewable energy projects, and industrial power systems. The role is offered as a full-time staff position, based at our Chesterfield Office, with an excellent Salary and Benefits package. If successful, you will enjoy NeoDyne's "People First" company culture, built on mutual respect, trust, and honesty, where each individual actively contributes as a valued team member.

Key Responsibilities

• Design and Engineering: Develop Protection and Control (P&C) designs for HV and MV substations, including protection schemes, control schematics, SLDs, and interlocking diagrams. Specify and design AC/DC auxiliary systems, control panels, marshalling cabinets, and wiring diagrams. Prepare Protection Coordination Studies, fault current calculations, and relay grading reports. Select and configure protection relays and prepare detailed relay setting files. Design and implement substation automation systems (SAS), RTU/PLC logic, and IEC 61850-based systems. Create detailed control logic diagrams, signal lists, and communication interfaces for SCADA, RTU, and IED integration.
• Testing, Commissioning, and Verification: Develop Factory Acceptance Test (FAT) and Site Acceptance Test (SAT) procedures for control and protection systems. Carry out relay testing, secondary injection, and end-to-end testing. Verify correct protection functionality, trip logic, interlocking, and communication protocols. Provide on-site technical support during commissioning, energisation, and fault-finding phases.
• Documentation and Compliance: Produce comprehensive design documentation, wiring schedules, technical specifications, and as-built drawings. Ensure compliance with Transmission Network Operator and DNO standards, IEC/EN standards, as well as client-specific design rules. Support the development and continuous improvement of design templates, engineering standards, and QA processes.
• Project Delivery and Collaboration: Reporting to the Lead or Senior Engineering Manager on projects. Providing guidance and training to junior and graduate engineers. Engage with clients, OEMs, and suppliers to clarify design interfaces, technical requirements, and delivery schedules.

Experience & Skills Required

• Bachelors/ Masters Degree in Electrical, Energy Engineering, or equivalent
• 2+ years' experience in a similar electrical or substation design role
• Knowledge of UK TSO/DNO or ICP(Independent Connection Provider) protection and control schemes
• Protection and Control design in a NERS certified environment or for major UK utility
• Experience with IEC61850 and programming of IED relays is an advantage.

Characteristics We look for candidates who:

• Work well as part of a team.
• Have excellent problem solving and diagnostic skills.
• Can complete tasks independently, capable of self-learning.
• Can prioritise and coordinate work.
• Have excellent customer service, interpersonal, communication and organisational skills.
• Can multitask and work well under pressure.
• Are a strategic business thinker.

What's on offer?

• Competitive starting salary with year-on-year bonuses and salary increases.
• Paid Overtime
• Pension
• Health Insurance
• Income Protection
• Life Assurance
• Flexible Working

Don't miss this opportunity to join a company at the forefront of industrial automation projects in the UK, Ireland, mainland Europe and the US. Apply now! NeoDyne Ltd is an equal opportunity employer, and all applications will be treated in strictest confidence.