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About the Role

Act as the technical expert for pre-sales solution development, leading the design and positioning of complex, commercially viable Battery Energy Storage System (BESS) solutions. The role bridges Sales, Engineering, and external stakeholders, ensuring optimal technical, regulatory, and commercial outcomes while shaping solution strategies, influencing customer decisions, and contributing to the company’s market positioning.

Responsibilities

Lead the development of technically robust and commercially competitive BESS solutions in collaboration with the Sales Team, acting as subject matter expert, converting customer requirements and constraints into feasible solutions
Prepare and own preliminary system designs, including equipment selection, system configuration, and integration concepts
Conduct technical assessments, performance simulations, and drive techno-economic optimisation of proposed solutions, ensuring alignment with project and business objectives
Act as the technical expert interface for customers during pre-sales, addressing queries and providing technical guidance
Prepare and contribute to high-quality, well articulated, technical proposals, tender submissions, and scope definitions aligned with commercial objectives
Identify, communicate, assess and mitigate complex technical, regulatory, and operational risks, and support mitigation strategies
Ensure proposed solutions comply with relevant standards, grid requirements, and industry best practices
Coordinate with internal engineering, product, and delivery teams to ensure feasibility and alignment of solutions
Represent the company in technical workshops, customer engagements, and external forums where required

Requirements

8+ years in a technical role within the renewable energy sector, preferably with experience in BESS, solar PV, or power conversion systems
Proven experience in pre-sales engineering, technical sales support, or application engineering
Ability to work in a project-oriented business, collaboratively in cross-functional teams and manage multiple priorities
Willingness to travel as required to meet with clients and support project development

Skills

In-depth knowledge of BESS components, including batteries, power conversion systems, and SCADA systems
Familiarity with grid connection processes, regulatory standards, and performance modelling
Proficiency in simulation tools and software for system design and analysis
Strong knowledge of NER, GPS requirements and connection processes
Strong analytical and problem-solving skills
Strong verbal and written communication skills, with the ability to convey complex technical information to non-technical stakeholders
Excellent presentation and interpersonal skills, capable of building and maintaining customer relationships
Collaborative, proactive, and detail-oriented
Proactive problem-solving abilities with a customer-centric approach
Strong ethical awareness and commitment to safety, quality and compliance

Experience Level

8+ years

Education Level

Bachelor's degree in electrical engineering, Renewable Energy, Power Systems, or a related field
Postgraduate qualifications or certifications in energy storage systems or power systems engineering are advantageous

About the Company

Project St. Eustatius: 100% Caribbean Solar Power
Project Hydrogen Dune
Project BigBattery Lausitz at the Schwarze Pumpe site

Equal Opportunity

At Altenso, we stand for equal opportunity and diversity – regardless of gender, age, origin, religion, disability, or sexual orientation.