BESS Project Engineer

QUINTAS ENERGY; Sevilla; Presencial; EUR 60.000 - 90.000; Jornada completa

Descripción de la vacante

Quintas Advisory, the advisory division of Quintas Group, seeks experienced energy advisory professionals in Seville, Spain. You will lead technical advisory assignments for renewable assets, perform rigorous due diligence on PV and BESS projects, and provide clear client-facing recommendations across design, operations and compliance.

Fluency in Spanish and English is required, with Italian a strong plus. The role requires collaboration across multidisciplinary teams and international clients,

Formación

• Degree in Electrical Engineering, Energy Engineering, or a related field.
• Minimum 3 years of experience with BESS projects; PV experience is a strong advantage.
• Solid understanding of BESS systems (architecture, EMS/BMS, degradation, warranties).
• Experience reviewing technical/contractual documentation (EPC, warranties, O&M).
• Advanced Excel skills; experience with energy modelling tools is a plus.

Responsabilidades

• Lead and deliver technical advisory assignments with high-quality outputs.
• Act as a technical point of contact for clients with clear, actionable recommendations.
• Perform technical due diligence on PV, BESS, and hybrid projects; assess design quality and risks.
• Review third-party designs and identify optimisation opportunities and gaps.
• Contribute to safety, compliance and long-term operational evaluations; support financial modelling.

Conocimientos

BESS knowledge

Analytical skills

Excel

Energy modelling

Spanish & English

Educación

Electrical/Energy Engineering degree

Herramientas

EMS/BMS

Energy modelling tools

Descripción del empleo

Quintas Advisory is the advisory division of Quintas Group. The latter comprises Quintas Energy, Europe’s largest independent platform for Asset Management and Specialised Services to investors in renewable energy assets, with at least 10 GW of assets currently under management.

What differentiates Quintas Advisory from its market competitors is more than a decade of know-how, track record and experience in managing renewable assets. Quintas Advisory provides services throughout the entire project lifecycle, from development to operations, using all our efforts and expertise to optimise asset status and deliver maximum long-term performance.

KeyResponsibilities

ProjectDelivery& Advisory

• Lead and deliver technical advisory assignments, ensuring high-quality outputs aligned with client expectations, timelines, and budgets.
• Act as a technical point of contact for clients, providing clear, structured, and actionable recommendations.

Technical DueDiligence& DesignReview

• Perform technical due diligence on PV, BESS, and hybrid projects, assessing design quality, operational strategies, risks, and regulatory compliance.
• Review third-party engineering designs (PV and BESS), identifying optimisation opportunities and technical gaps.
• Assess BESS system architectures, including EMS/BMS functionality, degradation assumptions, cycling strategies, and performance guarantees.
• Evaluate key storage use cases such as energy arbitrage, ancillary services,andcapacity markets.
• Analyse hybrid system behaviour, including PV-BESS interactions, dispatch strategies, and revenue optimisation.

Grid&RegulatoryAssessment

• Evaluate grid connection requirements, grid code compliance, and technical constraints for both standalone and co-located assets.
• Identify risks and opportunities linked to evolving regulatory frameworks and market design.

Safety &Compliance

• Assess compliance with relevant safety standards (e.g., NFPA 855, IEC 62933, UL 9540/9540A).
• Review fire safety design, thermal runaway mitigation strategies, and overall site safety concepts.
• Contribute to energy yield assessments, performance modelling, and long-term operational evaluations.
• Support the development of robust technical assumptions for financial modelling.

Internal& Commercial Support

• Support business development activities by providing technical input for proposals and client discussions.
• Coordinate with internal teams, external advisors, OEMs, and clients to ensure efficient project execution.
• Contribute to internal knowledge sharing and the continuous improvement of methodologies, tools, and best practices.

Requirements

Qualifications & Experience

• Degree in Electrical Engineering, Energy Engineering, or a related field.
• Minimum 3 years of experience, with proven exposure to BESS projects (experience in PV is a strong advantage).
• Solid understanding of:
• BESS systems (architecture, EMS/BMS, degradation, warranties, LTSAs)
• PV systems (modules, inverters, layouts, energy yield) – desirable
• Experience reviewing technical and contractual documentation (e.g., EPC contracts, warranties, O&M agreements).
• Strong analytical capabilities, with the ability to adapt methodologies to different scopes (due diligence, design review, performance analysis, etc.).
• Advanced Excel skills; experience with energy modelling tools is a plus.
• Fluent in Spanish and English; Italian is a strong advantage.

Soft Skills

• Strong communication skills, with the ability to translate complex technical concepts into clear, client-oriented insights.
• Comfortable working in multidisciplinary and international environments.
• Highly organised, with the ability to manage multiple projects and deadlines.
• Proactive and solutions-oriented mindset, with a strong sense of ownership.
• Adaptable, with the ability to work across both PV and BESS depending on business needs.
• High level of professional integrity and attention to detail.