Solar Design Engineer

Solar Design Engineer

Applications & Technical Authority

Business Area:
Energy Products & Solutions

Location:

Midlands based with National Travel

Salary:
Excellent + Benefits

We are seeking a Solar Design Engineer to join our central Energy Products & Solutions (EPS) division, supporting the development of high-quality solar PV solutions from initial concept through to final design for delivery.

This role sits within a newly established Applications & Technical Authority function, responsible for producing technically robust, commercially aligned solar designs that form the basis of all proposals and project delivery across the business.

The successful candidate will play a key role in standardising design quality, improving proposal accuracy, and enabling scalable growth in solar across the group.

• Solar Design Development (Core Role)
• Produce detailed solar PV system designs for commercial and industrial projects
• Develop:
  • Panel layouts (roof and ground‑mounted systems)
  • String configurations and inverter selection
  • DC/AC ratios and system optimisation
  • Select appropriate equipment based on project requirements and constraints
• Technical Design Pack Creation
  • Prepare design outputs to support firm proposals and delivery handover, including:
  • Single Line Diagrams (SLDs)
  • Layout drawings and system markups
  • Equipment schedules (modules, inverters, mounting systems)
  • Key design assumptions and constraints
• Support Budget Proposals (Applications Interface)
  • Work alongside the Applications team to validate preliminary designs, refine system sizing & performance assumptions, and ensure proposals are technically deliverable.
• Technical Authority & Standards
  • Contribute to the development of internal design standards, including:
  • Preferred equipment and configurations
  • Design rules (e.g. inverter loading, string limits, layout constraints)
  • Support the review and approval of designs prior to issue
• Delivery Handover & Support
  • Provide clear, structured design packs to delivery teams (internal or external)
  • Support technical queries during project execution
  • Ensure design intent is maintained through to installation

Proven experience in solar PV system design (C&I preferred)

• Strong understanding of:
• String design and inverter configuration
• DC system design principles
• Panel layout optimisation (roof and/or ground mount)
• Experience producing:
• SLDs
• Technical design documentation
• Familiarity with relevant UK standards and practices

• Experience with design tools such as PV
  * Sol, Helioscope, or similar
• Basic understanding of:
• Electrical infrastructure integration (LV/HV)
• Structural considerations for mounting systems
• Experience supporting projects through to delivery

• Strong attention to detail and technical accuracy
• Practical, delivery‑focused mindset (not purely theoretical)
• Able to work in a fast‑paced, evolving environment
• Comfortable working across teams (sales, applications, delivery)
• Proactive and solution‑oriented

Reports into:
Head of Energy Products & Solutions (EPS)

• Works closely with:
• Applications Engineers
• Sales teams
• Delivery teams (e.g. solar installers, contractors)

This role is central to establishing a high‑quality, scalable solar capability within the business.

You will help move the organisation from fragmented, inconsistent design approaches to a structured, technically robust model, where design quality underpins both commercial success and project delivery.

• UK‑based (flexible / hybrid working considered)
• Travel to sites and offices as required

We are committed to creating a diverse and inclusive workplace where everyone feels valued, respected, and supported. We welcome applications from candidates who meet the minimum required job role criteria, regardless of age, disability, gender reassignment, marriage and civil partnership, pregnancy and maternity, race, religion or belief, sex, or sexual orientation.

We actively promote equal opportunities and are dedicated to ensuring that our recruitment, selection, training, and promotion decisions are made based on qualifications, and experience only.

If you require any reasonable adjustments to support your application or to attend an interview, if shortlisted, please let us know and we will be happy to assist.

For further information please email: