BESS Project Engineer

About Quintas Advisory

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.

Key Responsibilities

Project Delivery & 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 Due Diligence & Design Review

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.

BESS & Energy Systems Analysis

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, and capacity markets.

Analyse hybrid system behaviour, including PV-BESS interactions, dispatch strategies, and revenue optimisation.

Grid & Regulatory Assessment

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.

Performance & Modelling

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.

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.