Location/s:
Madrid or Seville, ES; Genoa, IT
Recruiter contact:
Maria Marchidan
Mott MacDonald is a integral engineering, management, and development consultancy with over 20,000 employees across more than 50 countries and 140+ offices.
We work across incredible global industries, delivering exciting work that is defining our future and making an important societal impact in the communities we serve.
Our people power our performance – we succeed when they do.
With countless opportunities to collaborate, learn, and grow, the possibilities for excellence are as varied as every individual.
Whether you want to grow as a subject matter expert or broaden your experience with roles across our international community, you're surrounded by global specialists who want to combine their expertise and champion you to be your best.
As a proudly employee-owned business, we benefit our clients, our communities, and each other, investing in creating the right space for everyone to feel empowered, included, and valued.
Whatever your ambition, Mott MacDonald is where people come to be brilliant.
About Thebusinessunit
The Energy unit delivers services to clients globally across several sectors including hydropower, nuclear, waste, renewable generation and transmission & distribution networks.
Together we provide integrated engineering and project management services across the project lifecycle – from concept and design to construction and operations, to decommissioning or repowering and life extension.
Together with our clients, we're helping to deliver the energy transition globally.
Overview Of The Role
Mott MacDonald is a globally recognized engineering and consultancy firm, is seeking a highly skilled Battery Energy Storage Systems Engineer to join our growing Energy team.




To support and drive the successful integration of battery energy storage systems (BESS) into wind and solar power projects internationally.
As a BESS Engineer, you will lead the design, development, implementation, and operation of BESS in renewable energy projects.
You'll serve as the Owner's Engineer, providing technical expertise and ensuring seamless integration of BESS into project execution.
This is a permanent role and will offer excellent prospects for career development including involvement in different power generation technologies, mainly renewable energy projects.
Key responsibilities and duties include:
Provide comprehensive engineering support throughout the lifecycle of BESS energy projects, ensuring adherence to technical specifications, contract management, and stakeholder coordination
Conduct thorough feasibility studies, including technical and economic viability assessments, site evaluations, and identification of potential risks and mitigation measures
Offer expert guidance and recommendations on energy storage systems, renewable energy integration, and project development strategies to clients, energy majors, utilities, and governments
Stay updated with the latest advancements in BESS technologies, industry trends,



and regulatory requirements and share technical knowledge and insights within the organization to foster continuous learning and improvement
Assess project specifications, energy storage needs, and grid requirements to propose optimal BESS configurations
Assess the technical capabilities and reliability of potential BESS suppliers, ensuring adherence to project specifications and quality standards
Collaborate with procurement teams to define technical specifications, evaluate bids, and select the most suitable equipment and technologies
Evaluate electrical system design, protection schemes, and interconnection requirements for BESS integration, including grid stabilisation and backup power
Perform simulations and modelling to predict system performance and optimise design
Define key performance indicators (KPIs) and implement data acquisition systems to monitor BESS performance, including energy storage efficiency, response times, and system availability
Analyse performance data to identify trends, assess the health of the BESS system, and recommend maintenance or operational improvements
Develop project schedules, budgets, and resource plans for successful BESS implementation
Collaborate with project teams to manage risks, resolve technical issues, and ensure compliance with project milestones
Perform on-site inspections to ensure the quality and integrity of BESS components, installations, and interconnections
Develop and implement quality control plans, inspection checklists, and acceptance criteria for BESS systems
Collaborate with commissioning teams to define test protocols and procedures for BESS equipment and ensure thorough verification of system performance and functionality during the commissioning and testing phase
Candidate specification
Essential

📌 Senior / Principal Bess Engineer - Renewables (Sevilla)
🏢 Mott MacDonald
📍 Sevilla