Solutions Engineer BESS (m/f/d)

Der Entrepreneurs Club e.K.; Jelenia Góra; On-site; PLN 180,000 - 240,000; Full time

Benefits offered by this job

Inflation raise

Flexible vacation days

Mobile work

Childcare allowance

Pension subsidy

Company bike

Canteen

On-site gym

Job summary

GOLDBECK SOLAR is seeking a senior technical sourcing professional to lead the evaluation and procurement of utility‑scale Battery Energy Storage Systems (BESS). You will bridge engineering and procurement, translating complex requirements into optimized commercial configurations for Europe and beyond.

You will evaluate bids from global suppliers, develop internal tools and models, and collaborate with engineering teams to cut costs while ensuring performance and reliability.

Qualifications

• Strong analytical skills and the ability to turn complex technical data into usable tools.
• Fluent in English and German as required for international collaboration.
• Several years of professional experience in engineering or technical sourcing, preferably with large-scale battery storage or high‑voltage projects.
• Solid understanding of battery technologies, grid connections and single-line diagrams.
• Ability to translate technical project requirements into optimized procurement configurations.
• Proactive, problem‑solving mindset with capacity to build new frameworks from scratch.
• Excellent communication skills to work with global suppliers and commercial managers.

Responsibilities

• Review and technically evaluate large-scale battery storage solutions (BESS) from global suppliers.
• Manage the technical aspects of tender processes and compare offers to inform buying decisions.
• Analyze client technical requests and match them with optimal battery setups.
• Collaborate with internal engineering teams to optimize designs and reduce costs.
• Create and maintain internal tools and templates, such as battery degradation models.
• Align with battery manufacturers on technical details and communication protocols before contracts.
• Assist procurement in writing the technical parts of contracts focusing on performance and lifecycle.
• Identify technical risks in the supply chain and assess supplier performance.

Skills

Analytical skills

Excel modeling

Technical sourcing

English & German

Cross-functional collaboration

Education

Bachelor's degree in Electrical/Industrial Engineering or similar

Job description

Who we are:

GOLDBECK SOLAR is a leading provider of turnkey solar systems on commercial roofs and open spaces. With our dedicated team, we develop, plan, build, support and finance photovoltaic systems in Germany, Europe and worldwide – tailor‑made with a system.

This is what you can expect:

In this newly established, business-critical role, you will become the core technical and engineering backbone of our global Category Management team. Your primary focus will be the technical evaluation, qualification, and strategic sourcing of utility‑scale Battery Energy Storage Systems (BESS).

You will work at the crucial intersection between international Tier‑1 equipment manufacturers (e.g., cell, container, and inverter suppliers) and internal regional engineering and sales departments. Your mission is to bridge the gap between engineering and procurement, translating complex technical project requirements into optimized commercial configurations and standardized procurement frameworks to safeguard our rapidly growing European utility‑scale pipeline.

Your Responsibilities:

1. Review and technically evaluate large‑scale battery storage solutions (BESS) from top global suppliers like Sungrow, CATL etc.
2. Manage the technical aspects of tender processes, compare different supplier offers, and help make clear buying decisions.
3. Analyze technical requests from clients and match them with the best and most cost‑effective battery setups.
4. Work closely with internal engineering teams to optimize designs, cut unnecessary costs, and prevent over‑engineering.
5. Create and maintain internal tools and templates, such as battery degradation models, to speed up the pre‑sales process.
6. Align directly with battery manufacturers on technical details, boundaries, and communication protocols before contracts are signed.
7. Help procurement managers write the technical parts of contracts, focusing on performance guarantees, efficiency, and battery lifecycles.
8. Spot technical risks in the supply chain and help grade supplier performance.

What we are looking for:

1. A university degree in Electrical Engineering, Industrial Engineering, or a similar technical field.
2. Several years of professional experience in engineering or technical sourcing, ideally working with large‑scale battery storage, substations, or high‑voltage projects.
3. A solid understanding of battery technologies, grid connections, and single‑line diagrams.
4. Strong analytical skills and the ability to turn complex technical data into easy‑to‑use Excel tools.
5. A proactive, problem‑solving mindset with the drive to build new frameworks and processes from scratch.
6. Confident communication skills to manage technical discussions with global suppliers and explain technical terms to commercial managers.
7. Fluency in English and German is required.

Benefits:

1. Annual increase in remuneration in line with the average inflation rate.
2. Flexibility in the number of vacation days.
3. Possibility of mobile work.
4. Childcare allowance of up to €600 per child of toddler age.
5. Subsidy of 15% to the company pension scheme.
6. Capital‑forming benefits of around €300 per year.
7. Job bike after the probationary period.
8. In‑house canteen.
9. On‑site gym.
10. Very good connections to public transport and the A5 motorway.
11. An open, trusting and professional cooperation with a focus on success and enjoyment of daily work.
12. Working with a highly trained international team in a dynamic, international market.
13. The best conditions for independent work as well as exciting and challenging topics.
14. Helping to shape the global energy transition.