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Jobs for students, graduates, career starters

Start your career in an international, innovative environment

At DIEFFENBACHER Finland, you can combine your academic knowledge with hands-on experience through a thesis, internship, student position or an hourly work contract while actively contributing to real industrial projects.

Whether your interests lie in mechanical design and engineering, automation or electrical engineering, we offer meaningful opportunities to develop your skills and grow professionally. Your ideas matter to us, and you’ll work in a supportive team that values open dialogue, forward thinking, and solutions with both global impact and local relevance.

Together, we write your success story

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We offer you

Strong team

Process understanding

Fair salary

Work appreciation

Internationality

Your start as a student and career starter at Dieffenbacher

Doing your final or master’s diploma thesis with DIEFFENBACHER offers the opportunity to work on a meaningful, practice-oriented and industry-driven topic that supports the successful completion of your studies. You will collaborate closely with experienced professionals while combining independent academic research with hands-on application based on real industry needs. This approach allows you to gain valuable insight into how theoretical knowledge is applied in an industrial environment, develop strong problem-solving expertise, and build a solid bridge between your studies and professional life—creating excellent prospects for your future career and potential long-term opportunities with us.

At DIEFFENBACHER, internships and summer jobs offer students the chance to gain practical experience alongside their studies in a real industrial environment. You’ll work on meaningful tasks, learn from experienced colleagues, and apply your academic knowledge to everyday engineering.

These positions provide valuable insight into working life, support your professional development, and can serve as an excellent stepping stone for future thesis projects or longer‑term career opportunities with us.

At DIEFFENBACHER, the working student positions allow you to combine your studies with working in a real industrial environment. You’ll support our teams with meaningful tasks related to your field of study while applying your theoretical knowledge in practice.

These roles offer flexible working hours, valuable insight into professional life, and the opportunity to build skills and networks that support your future career.

An OC (On‑Call) contract offers flexible work opportunities alongside studies or other commitments. With an OC contract at DIEFFENBACHER, you work based on agreed needs and availability, gaining valuable practical experience while maintaining flexibility in your schedule.

OC contracts are a great way to get to know our work, develop your skills in a real industrial environment, and build professional connections—often serving as a natural first step toward longer‑term opportunities with us.

Your working environment

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Impressive tasks and projects

Take on exciting tasks and projects, apply the skills you’ve learned during your studies and get needed support and help from your team.

Five people are holding a meeting in a modern conference room

Team spirit

As a student or graduate at DIEFFENBACHER, you have the opportunity to learn, develop, and grow as part of a supportive and collaborative team. Your supervisors and colleagues are always ready to help with questions, share their experience, and discuss your future career goals. We value open communication and teamwork, and we want you to feel heard, supported, and encouraged throughout your journey with us.

Workplace

Can’t quite picture your student job or thesis in Nastola? Our office is located in the Lahti region, surrounded by nature, lakes, and space to breathe—yet close to everything you need. The area offers a relaxed and safe living environment, with good services, housing options, and easy access to various cultural and sport activities all year round - with smooth transport connections across the region and to the capital area. Here, you can enjoy a balanced everyday life: meaningful work, a supportive workplace, and time for studies, hobbies, and recovery.

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Salary

You will receive a fair and competitive salary and benefits that reflect your contribution, skills, and level of responsibility. We value your work and believe that your efforts and commitment should be recognized in a transparent and rewarding way.

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Vire!

Sports program

The Vire! team creates opportunities to connect, unwind, and enjoy time together outside everyday work. The team organizes a variety of sports and cultural after‑work activities, relaxed board game nights, and much‑anticipated highlights such as our annual summer party and Christmas celebration.

Would you like to know more?

Job areas at Dieffenbacher

FInd more information on tasks, areas of application and everyday working life on our career page for professionals.

No open vacencies?

Let us know your plans, and together we’ll create the conditions for you to write your personal and professional success story with us. As part of the Tulevaisuuden osaajat (Future Talents –https://www.lut.fi/fi/tulevaisuuden-osaajat) program in Lahti, we actively support students and early‑career professionals in building strong connections between studies and working life.

Current vacancies and topics for theses are listed on LinkedIn and in the Dieffenbacher job portal. If there’s not a suitable offer currently available for you, please send us an unsolicited application. Let’s explore topics and opportunities together. We’re eager for your expertise and fresh ideas!

Several people are sitting around a table in a conference room; one person is speaking while the others listen and laugh. — The employees and a student have a meeting.

Application process

Here’s what you’ll need for your application to Dieffenbacher and what happens after we receive your application:

The application documents as a pdf file include:

Your cover letter
Your curriculum vitae
Your previous certificates
Additionally for apprenticeships, dual studies and cooperative studies: internship confirmation, if applicable
Additionally for student internships, thesis and working student activities: certificate of enrollment, current transcript of grades,
excerpt from the examination regulations for thesis, residence permit of work permit, if applicable

Please provide all documents in a single PDF document.

Send in your documents through our application portal (Sympa)
You will receive a confirmation of receipt
Invitation to a first round interview (online)*
An invitation to the second interview (in person)*
An offer
We look forward to welcoming you to our team!

* interview(s) may include a practical recruitment test as needed.

If it goes well, your application process at Dieffenbacher will look like this:

Example Process

Go further together

Job portal

Dieffenbacher as employer

Locations and benefits

150 years of company history