Mechanical Engineer (f/m/d)
NexWafe
Company Overview
NexWafe GmbH
Freiburg im Breisgau, Germany
2015
The number of employees is not publicly specified, and as a private company, no revenue data for 2023 or later is disclosed. The company has raised approximately 95 million euros in funding, including a financing round of 30 million euros in May 2023 (source: eu-startups.com).
What They Do
NexWafe is an innovative company specializing in the production of advanced solar wafers. The company's core technology focuses exclusively on photovoltaics, manufacturing ultra-thin, high-efficiency monocrystalline n-type silicon wafers through a proprietary EpiWafer or EpiNex process. This process allows for the deposition of a crystalline silicon layer on a reusable substrate, eliminating the need for traditional methods of Czochralski crystal growth and wire sawing (source: netzerocompare.com). This technology reduces energy consumption by 40-70% and CO2 emissions by 40-70%, while cutting material waste from over 50% to under 10% (source: businesswire.com). NexWafe's products are designed for use in terrestrial solar projects, residential installations, and emerging applications such as tandem cells (source: nexwafe.com).
Projects & Track Record
NexWafe has an impressive track record in pilot projects, including a 5 MW pilot line in Freiburg that was launched in 2021, as well as the introduction of a commercial line in 2020. A notable project was a European solar project on 200 acres that achieved a 20% higher energy yield compared to conventional wafers (source: eu-startups.com). The company is currently planning to build its first commercial green wafer factory in Bitterfeld, Germany, supported by a financing round of 30 million euros (source: eu-startups.com).
Recent Developments
In the past two years, NexWafe has made significant progress, including the announcement of efficiency parity of 24.4% for HJT cells and 28.9% for tandem cells (source: businesswire.com). In May 2023, the company secured 30 million euros for the construction of its factory in Bitterfeld, while simultaneously completing a financing round of 39 million euros for a gigafactory in India (source: eu-startups.com). The company has also established a collaboration with Aramco Ventures for production in Saudi Arabia.
Working There
NexWafe offers a variety of roles in a growing team focused on expanding prototype production. The company culture emphasizes innovation, customer-oriented solutions, and the commercialization of research technologies (source: careers.nexwafe.com). The headquarters is located in Freiburg, with potential locations in Bitterfeld, the USA, India, or Saudi Arabia, while specific benefits or perks are not documented in the available sources.
Last updated on Feb 23, 2026 | Report an issue
For our location in Freiburg im Breisgau, we are looking for a Mechanical Engineer (f/m/d) to strengthen our Design Engineering team.
At NexWafe, we are redefining how silicon wafers are manufactured. Our innovative epitaxial wafer technology reduces process steps, energy consumption, and CO₂ emissions, setting a new benchmark for sustainable photovoltaic production.
As a Mechanical Engineer (f/m/d), you will be at the interface between simulation, design, and manufacturing. Your mission will be to convert simulation results into robust and manufacturable designs, creating functional showerhead systems for our next-generation production tools.
Through close collaboration with process engineers, suppliers, and internal stakeholders, you will contribute directly to the advancement of NexWafe's groundbreaking wafer manufacturing technology.
Join our international team and help drive the transition toward a more sustainable energy future.
Your Mission
Mechanical Design & Equipment Development
- Initiate and evaluate solutions to optimize equipment and machinery.
- Discuss requirements with stakeholders and translate them into functional specifications and mechanical designs.
- Evaluate concepts and perform engineering calculations for new equipment and installations.
- Convert simulation results into manufacturable designs, contributing to the development of functional showerhead systems.
- Support the evaluation and implementation of concepts for digital manufacturing documentation.
Supplier & Installation Support
- Proactively manage, support, and coordinate suppliers on-site.
- Initiate, facilitate, and manage technical specifications for parts and assemblies used in procurement activities.
- Proactively manage, coordinate, and provide technical support for installation and assembly activities.
- Participate in technical discussions with suppliers and internal stakeholders to ensure successful project execution.
Your profile
Must-Haves
- Degree in Mechanical Engineering or a comparable engineering discipline (Bachelor's or Master's degree; Master's degree preferred).
- Minimum 3 years of full-time industrial experience in mechanical design and engineering after graduation, preferably within semiconductor equipment, photovoltaic manufacturing, vacuum technology, process equipment, plant engineering, or metalworking industries.
Please note that internships, working student positions, academic research activities, and thesis projects are not considered equivalent to the required professional experience. - Solid knowledge of vacuum technology and its application in design, development, and commissioning.
- Practical knowledge of welding technologies and welded assemblies used in equipment construction.
- Experience with CAD software such as Inventor, AutoCAD, or similar design tools.
- Fluent English skills (B2 level or above).
- Good communication and teamwork skills.
Nice-to-Have Qualifications
- Practical experience with gas injector systems.
- Experience supporting equipment installation, commissioning, or supplier coordination is considered an advantage.
- Proficient user of Microsoft Office applications.
- Experience in the semiconductor industry.
Why us?
- A diverse team: Short decision-making processes, flat hierarchies and collaboration with experts from different areas await you.
- A diverse and exciting job: A company that contributes to the commercialisation of environmentally friendly solar energy with a low carbon footprint.
- Stability with a certain degree of flexibility: A permanent position with flexible working hours.
- Attractive remuneration programme: An attractive salary, a company pension scheme and profit-sharing for employees.
- Healthy balance: Take your physical and mental health to the next level with an annual health budget and a HanseFit membership!
- Expand your language skills: Optimise your career prospects with the language courses offered.
Apply now
Job expired?Please let NexWafe know you found this job on Rejobs. It helps us grow and get more people working in renewable energy.
Apply now
Job expired?Please let NexWafe know you found this job on Rejobs. It helps us grow and get more people working in renewable energy.
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About the role
July 14, 2026
July 15, 2026
Full time
Flexible
Company
- Freiburg, Germany
Minimum 3 years of full-time industrial experience
UTC+01:00