The International Traineeship

As a trainee at TenneT, you will be in a great position to contribute to one of the most essential companies in the energy transition. Over 1.5 years, you will explore your talents while working on real-world challenges. The application for October 2025 will open soon.

Your program, your focus

Gain hands-on experience across multiple departments in our traineeship. With tailored development plans, job rotations, and innovative projects, you will learn how to combine responsibility with growth in a company that is a key player in Europe's energy landscape.

In our traineeship we focus on three main fields of interest: Energy Systems & Markets, Building & Maintaining, and Enabling the Business. In this traineeship:

  • You choose your assignment
  • You work fulltime at TenneT
  • You work hybrid and on various locations
  • You receive a starting salary of € 4151

The application for October 2025 will open soon.

Your traineeship

Your traineeship is built around three core pillars: business assignments (70%), trainee activities (20%), and personal development (10%), providing a balanced mix of hands-on experience, networking, and growth. This structure ensures you gain valuable insights into the energy sector while shaping your career path. In this traineeship you will:

  • Customize your program to fit your needs and interests by choosing your teams and assignments;
  • Impact the energy transition with responsible tasks and gain diverse perspectives on TenneT and the energy sector;
  • Build connections across departments and borders through job rotations, expanding your knowledge and network;
  • Enhance your skills with development programs focused on communication, advisory skills, and personal effectiveness, supported by your coach and fellow trainees.

Three Fields of Work

In the TenneT traineeship we focus on three fields of interest: Energy Systems & Markets, Building & Maintaining the Grid, and Enabling the Business. Your traineeship will have an emphasis on one of these three fields, but you will be challenged to explore whether one of these other fields fits your ambitions and talents best.

Energy Systems & Markets

As a trainee in Energy Systems & Markets, you contribute to TenneT’s role in facilitating the energy system and market for the present and future. You will work on various topics, from strategy to operations, supporting the development of the future electricity grid and balancing electricity supply and demand. You will also design market mechanisms and improve collaboration with (inter)national partners.

Example projects include:

  • Creating scenarios for the Dutch energy system in 2050
  • Developing an approach to manage grid losses between offshore hubs
  • Analyzing the financial performance of transmission rights on international offshore cables

TenneT seeks talents with diverse backgrounds, such as Electrical Engineering, Large Systems Engineering, Energy Science, Sustainable Energy Technology, or related fields.

Build & Maintain

As a trainee in Building & Maintaining, you help expand and maintain TenneT’s electricity grid, both onshore and offshore. This supports the growing share of renewable energy. You can work on various engineering or project management roles, such as designing new cables, stations, or hubs, digitizing the energy grid, or standardizing components for easier maintenance.

Example projects include:

  • Advising on standardization topics for large projects
  • Developing digital maps for stakeholder communication
  • Coordinating construction and maintenance plans to minimize environmental impact
  • Exploring technical options for reburial of offshore cables in protected areas

We seek talents interested in large infrastructural projects from backgrounds like Engineering, Energy Science, Physics, Project Management, Public Administration, Environmental Studies, or Communications.

Enabling our Business

As a trainee in Enabling the Business, you will help TenneT evolve to meet the challenges of the energy transition. This involves recruiting and engaging employees, developing state-of-the-art software, and ensuring solid accounting, risk management, and legal frameworks. TenneT is rapidly growing, making this role both interesting and challenging.

Example projects include:

  • Enhancing project predictability with risk management
  • Developing software for the TenneT control room
  • Contributing to TenneT’s learning and development strategy
  • Increasing CSR awareness within TenneT

We seek talents from Business Administration, IT, Human Resources, Public Administration, Communication, Accounting, Law, and related fields.

Three Pillars of the Traineeship

Learn more about the three pillars of your traineeship. Trainee assignments (70%), trainee activities (20%) and personal development (10%).

Assignment
The majority of your time will be spent on your assignments. You will learn all about our line of work and how you can contribute to a green energy future. Find out more about the assignments.
Learn more
Trainee activities
We want to you to make the most of your traineeship at TenneT. Build a network, share knowledge and cross borders. That's why you will spent time on trainee activities. Read more about these activities.
Learn more
Personal development
A vital pillar in your traineeship, which takes 10% of your working time, is your personal development. Find out what we do for your personal development.
Learn more

Trainees @ TenneT

"I started as an intern and worked on a model that maps the causes of grid congestion on the high-voltage grid. During this traineeship I will explore other departments within TenneT. TenneT is a great company to work for because of the interesting challenges, the colleagues and the open working atmosphere. There are plenty of opportunities to develop and grow yourself."

Koen Vialle, Trainee Netherlands

"I love being a trainee at TenneT because I’ve gotten to try out so many different things since I started, from starting off working with energy market modelling and diving into topics related to designing the future grid to now working on site at the construction yard and see how we develop our offshore assets today."

Emma Larsson Ström, Trainee Netherlands

FAQ

  • Me and the Trainee program – is it a match?

    You want:

    • To start your career in contributing to the energy transition?
    • To get to know yourself better? 
    • To learn what TenneT is all about?
    • To be part of an international, diverse, fun group of young graduates?
    • To experience yourself in different working environments (content, team, way of work,…)?
    • The chance to connect to professional within an outside of TenneT and build your network?
    • To co-create your traineeship program?

    Yes? Congratulations! It’s a match!

  • It's a match - How and when can I apply?

    New trainee positions will be published around 5 months before each new cycle of the trainee program. For a start at TenneT in April, job advertisements will be released from November on and for a start in October positions will be posted online from May on. The application process then starts directly via the respective job advertisement.

  • How does the application process work?

    The application process will take up to 3 months. It starts with your application (resume and motivation letter). If you are selected for a job interview, we will ask you to share an application video with us and you will be invited for an interview. The interview will be with one of the current trainees, a representative from the business and a recruiter.

  • How many Trainee positions are available?

    Our trainee program will have two starting dates in 2025: the 1st of April and the 1st of October. For both starting dates we have 10 trainee positions available.

  • From where will I work?

    At TenneT we live the concept of hybrid working. Our head office is in Arnhem. Depending on the assignment you are working on, you might work from a dedicated project location or with one of our international partners.

Want to learn more?

Contact our Campus recruiter

Erik Wagemaker, Campus recruiter +31 (6) 14 20 77 23
Inge Klappers, Campus recruiter +31 (6) 41 86 51 89