We are a professional energy storage system integrator focusing on Utility-scale BESS & Commercial & Industrial BESS. We are rapidly expanding our European market. This presales role fully supports local sales teams, responsible for technical solution design, customer technical communication, tender support, grid code compliance analysis, and sales empowerment. The core objective is to help sales win BESS projects and build long-term customer technical trust in Europe.
Key Responsibilitie

Provide professional turnkey BESS solutions for European utility-scale and C&I; energy storage projects
Design system topology, PCS/EMS configuration, thermal management & fire protection solution, grid connection solution according to local grid codes
Deliver full presales documents: proposal, technical presentation, single-line diagram, BOM, benefit analysis, competitor comparison
Attend customer technical meetings, answer technical inquiries, conduct technical negotiation & clarification
Be fully responsible for tender technical documents, technical response sheets, deviation sheets,



bid compliance checking
Research European local grid standards, energy policies, grid codes, certification requirements, and local market rules
Build standardized European BESS solution library, FAQ library, and sales training materials
Provide technical training for local sales, distributors and partners
Identify presales risks including grid connection risks, compliance risks, technical matching risks in early stage

.Requirement

Bachelor's degree or above in Electrical Engineering, Power System, Renewable Energy, Automation
.1-5 years BESS presales / solution experience in utility & C&I; energy storage
.Familiar with BESS system structure, PCS, EMS, battery container, fire & thermal system
.Knowledge of European grid codes (G99/G100, VDE, CE etc.) is preferred
.Fluent English and Spanish for client communication, technical presentation and business negotiation
.Strong logic, proposal writing skil

📌 Technical Support Engineer (España)
🏢 RelyEZ Energy Storage
📍 España