Summer Trainee, Method Design

Overview

IONCOR is an agile independent battery solutions company with Nordic roots and decades of experience as a leading partner for some of the world’s most admired brands. With professionals in Finland and Germany, we provide modular battery products, customized solutions and contract manufacturing to energize a global energy transition. We work with buses, trucks, construction, material handling and agriculture, where production volumes may be lower and end-use cases more complex, making a swift and viable transition a real challenge.

We help customers master and gain maximal value out of battery technologies across the lifecycle, from early specifications and end-user support to reuse and recycling. This is how we electrify a global energy transition.

We are now looking for eager Summer Trainees to join our team. As a Summer Trainee, you can kick-start your career with hands-on experience and help shape the future of battery technology. This opportunity is with the Method Design team, a manufacturing engineering function responsible for designing and implementing new production line projects, developing production tooling, defining processes, and driving lean continuous improvement initiatives.

Typical activities include project management, CAD-based tooling design, time studies, and creating work instructions. As a summer trainee in Method Design, you will be at the center of production environment development, working closely at the interface between product design and manufacturing, gaining hands-on experience in a state-of-the-art high-volume production environment, developing practical project management skills, and taking responsibility for meaningful tasks that contribute directly to operations.

• Project management support
• Continuous improvement activities in production
• Process development tasks
• Tooling and fixture design

The traineeship location is Salo, Finland.

• Ongoing studies or a recent degree in mechanical, industrial or similar engineering field
• Passion for creating, fixing, or experimenting with technical things like cars, bikes, DIY projects, or 3D printing. Practical, hands-on experience is a plus.
• Interest in processes and project management
• A can-do attitude
• Good Excel skills
• Good spoken and written English is required. Finnish language is seen as a benefit.

• Flexible working hours
• An international atmosphere, with both Finnish and English as working languages
• Paid internship, with pay based on credits completed. Salary range is €/month.
• Trainee community and fun events throughout the summer
• Employee benefits such as free access to our gyms in Salo and Uusikaupunki, occupational healthcare, lunch benefit, and various discounts at selected stores and gyms.

Join our team and apply by 22.2.2026 via our application tool. We look forward to receiving your application!

We’ll review applications after the deadline and invite selected candidates to meet the hiring manager (and possibly future teammates), either face-to-face or via Teams. Our trainee recruitment process is straightforward and transparent, and after one interview you can expect a decision from us by the end of March.

For more information, visit our website or contact our HR team at: talentma

#Tech summer #Teknokesä