Solar Pv Design & Development Engineer

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Solar PV Design & Development Engineer (Pre-Construction)

Infinite Energy are a leading Irish solar PV company based in Carlow serving Ireland and Mainland Europe. Our commercial & industrial (C&I) division focuses on large-scale solar PV, battery storage, and energy-efficiency projects for businesses across Ireland.

We are specialists in “behind-the-meter” renewable systems for commercial facilities, industrial plants, warehouses, pharma sites, agricultural operations, and data centres.

We are seeking a highly motivated individual to work closely with the Managing Director and General Manager to assist with pre-construction activities on our strong secured pipeline, and also to nurture future opportunities with new and existing clients. This is an excellent opportunity to grow with a strong ambitious team in a strong and growing sector.

Job Title

Solar PV Design & Development Engineer – Commercial & Industrial (C&I) Projects

Job Summary

We are seeking a motivated and technically strong Solar PV Design & Development Engineer to support the full pre-construction lifecycle of commercial solar PV projects. The role combines technical design, estimation, project development, commercial support, and business development activities from initial client engagement through to project award and handover to the operations team.

The successful candidate will be responsible for developing technically compliant and commercially competitive solar PV solutions for commercial and industrial clients, preparing proposals and tenders, supporting client relationships, and coordinating all pre-construction activities required to secure projects.

Key Responsibilities

Technical Design & Engineering

• Design commercial and industrial solar PV systems including rooftop, ground-mounted, and carport installations.
• Produce preliminary and detailed PV system layouts using industry-standard software.
• Carry out energy yield analysis, shading assessments, and system performance modelling.
• Develop single line diagrams (SLDs), string layouts, equipment schedules, and preliminary electrical designs. Be able to carry out these tasks yourself and also delegate tasks to our CAD technicians and electrical design engineers when required.
• Select appropriate PV modules, inverters, mounting systems, cabling, and balance of system components.
• Ensure designs comply with electrical regulations, grid requirements, health & safety standards, and industry best practices.
• Coordinate and track grid connection applications and technical submissions.
• Support battery storage and EV charging integration where applicable.

Estimation & Commercial Support

• Prepare accurate cost estimates and project budgets for commercial solar PV installations.
• Develop bills of quantities (BOQs), procurement schedules, and technical specifications.
• Obtain and evaluate supplier and subcontractor quotations.
• Support pricing strategy and commercial reviews to ensure competitive tender submissions.
• Analyse project profitability, technical risks, and value engineering opportunities.
• Assist in contract reviews, scope clarifications, and commercial negotiations.

Project Development & Business Development

• Support the sales and business development teams with technical expertise during client engagements.
• Attend client meetings, site surveys, and pre-tender discussions.
• Identify client requirements and develop tailored technical solutions.
• Prepare technical proposals, presentations, and tender documentation.
• Contribute to pipeline development and opportunity tracking.
• Manage and update the commercial quotation tracker.
• Maintain relationships with electrical contractors, main contractors, developers, consultants, suppliers, and key stakeholders.
• Support market analysis and identification of new commercial solar opportunities.

Pre-Construction Management

• Coordinate all pre-construction activities from lead qualification to project award.
• Manage technical due diligence, feasibility studies, and site assessments.
• Liaise with utilities, consultants, landlords, and regulatory bodies where necessary.
• Maintain accurate project documentation and records throughout the development phase.
• Coordinate internal approvals and handover documentation for the operations/construction team.
• Ensure smooth transition of awarded projects to project delivery teams.

Qualifications & Experience

• Degree or diploma in Electrical Engineering, Renewable Energy, Energy Systems, or related discipline. Electrical trade or good understanding of electrical construction material and methods also advantageous.
• Minimum 3 years’ experience in commercial solar PV design, estimation, or project development.
• Strong understanding of commercial and industrial solar PV systems.
• Experience using solar design software such as Helioscope, PVsyst, AutoCAD, or equivalents.
• Knowledge of electrical design principles, grid connection processes, and relevant standards/regulations.
• Experience preparing tenders, proposals, and cost estimates for solar projects.
• Strong commercial awareness and understanding of project financials.
• Excellent communication and stakeholder management skills.
• Ability to manage multiple projects and deadlines in a fast-paced environment.
• Full driving licence is required as role will be office based with site visits required.

Desirable Skills

• Experience with C & I solar PV systems of all sizes plus battery energy storage systems (BESS).
• Knowledge of IS, IEC, BS, or other applicable electrical standards.
• Familiarity with commercial contracts and procurement processes.
• Project management experience within renewable energy projects.
• Understanding of energy markets, PPAs, and financing structures.

Key Competencies

• Technical problem-solving
• Commercial awareness
• Attention to detail
• Client-focused approach
• Team collaboration
• Negotiation and communication skills
• Organisational and time management skills

Reporting To

• Managing Director & General Manager

Salary dependant on experience.

Vehicle provided for this role

Pay: €50,000.00-€75,000.00 per year

Benefits:

• On-site parking

Ability to commute/relocate:

• Carlow, County Carlow: reliably commute or plan to relocate before starting work (required)

Experience:

• C&I Solar PV: 3 years (required)

Language:

• Fluent English (required)

Work authorisation:

• Ireland (required)

Work Location: In person