European BESS Presales Engineer – Grid Code Expert

RelyEZ Energy Storage; España; On-site; EUR 60,000 - 90,000; Full time

Job summary

RelyEZ Energy Storage is expanding in Europe, seeking a presales engineer to design turnkey BESS solutions for European utility-scale and C&I projects. You will configure system topology (PCS/EMS, thermal, fire protection) aligned with local grid codes, and deliver comprehensive presales documents.

Travel across Europe to engage with sales teams and customers is expected. The role requires 1–5 years in BESS presales, English and Spanish fluency, strong proposal writing, and the ability to work

Qualifications

• Bachelor's degree in Electrical Engineering or related field, plus additional certifications preferred.
• 1–5 years of BESS presales/solution experience for utility or C&I energy storage.
• Familiarity with BESS system structure: PCS, EMS, battery container, fire & thermal systems.
• Knowledge of European grid codes (G99/G100, VDE, CE, etc.) preferred.
• Fluent in English and Spanish for client communication, presentations and negotiations.
• Strong logic, proposal writing, and customer-oriented mindset.
• Willingness to travel within Europe and collaborate with sales teams.
• Overseas presales experience in energy storage is highly preferred.

Responsibilities

• Provide turnkey BESS solutions for European utility-scale and C&I projects.
• Design system topology and configurations (PCS/EMS, thermal, fire protection, grid connection) per local grid codes.
• Deliver presales documents: proposals, technical presentations, diagrams, BOMs, benefit analyses, and competitor comparisons.
• Attend customer meetings, answer technical inquiries, and conduct negotiations and clarifications.
• Prepare tender technical documents, response sheets, deviation sheets, and bid compliance checks.
• Research European grid standards, energy policies, grid codes, and certification requirements.
• Build and maintain a library of standardized European BESS solutions, FAQs, and training materials.
• Provide technical training for local sales, distributors, and partners.
• Identify presales risks (grid connection, compliance, technical matching) early in the process.

Skills

Proposal writing

Customer focus

English/Spanish

Education

Electrical Engineering

Job description

RelyEZ Energy Storage is expanding in Europe, seeking a presales engineer to design turnkey BESS solutions for European utility-scale and C&I projects. You will configure system topology (PCS/EMS, thermal, fire protection) aligned with local grid codes, and deliver comprehensive presales documents.

Travel across Europe to engage with sales teams and customers is expected. The role requires 1–5 years in BESS presales, English and Spanish fluency, strong proposal writing, and the ability to work