Flexible work arrangements, days of leave and public holidays

ACER strongly supports and encourages a healthy work-life balance. The Agency introduced flexible and core working hours, so that Staff members and SNEs are free to choose the beginning and the end of their working day while ensuring their office presence during core hours.

Telework is also supported for Staff and SNEs, so to carry out their duties outside the Agency's premises.

ACER has between 17 and 19 days of public holidays spread across the calendar year.

Staff members and SNEs are entitled to annual leave of 2 days per month. 
 

Wellbeing

At ACER, we CARE!

The Agency offers annual medical checks to staff and organises seasonal vaccinations. It also offers the possibility of specific and ad hoc medical and consultation services concerning physical and mental health.

The Agency also subsidises several sport activities, such as football, yoga, fitness, climbing, Pilates, and many more.

Any newcomer can also benefit from the Welcome Buddy programme helping new colleagues to get a good start with their new life at ACER and in Ljubljana, as well as to integrate quickly in the new environment.

ACER's employees are also supported by the Staff Committee (SC), acting as a bridge between the staff and the management and ensuring the  interest of staff is represented. ​
 

Learning and Development 

Our learning and development portfolio ranges from language courses, own initiative learning, in-house courses, to specific training in partner institutions such as the European Commission, Florence School of Regulation, European School of Administration, and many more.​​

Remuneration, allowances, and other benefits

ACER offers a competitive remuneration scheme and several allowances.

Remuneration includes basic salary, family allowances and other benefits (compensation of costs related to entry into service, installation, annual travel and removal), depending on the individual situation.

If you are an expat with an employment contract of at least one year, you will also be entitled to the VAT exemption during your first twelve months in Slovenia.

Health insurance is provided by the European Commission - Joint Sickness and Insurance Scheme (JSIS), starting with the first day of your employment at the Agency. It can also be extended to your family under certain conditions.

ACER offers also external legal service for its staff, exclusively available for personal purposes. The service provides free-of-charge legal advising in various areas of Slovene law, such as consumer rights, property law, or tax law. The main purpose is to facilitate the integration of staff and families in Slovenia, as the host country.

Office facilities

In the heart of Ljubljana, ACER welcomes its staff and guests in modern and well-equipped offices.  The most important services, facilities, shops and restaurants are at a walking distance from ACER offices.

Life in Ljubljana

Ljubljana is the green capital of a green country and is considered to be a yet undiscovered gem of Europe. It is one of the smallest European capitals, with less than 300.000 residents. Awarded the title of European Green Capital 2016, the city features a widely pedestrianized city centre, well-developed cycling networks and a substantial presence of green areas, distinguishing itself for its high liveability and security levels.

Ljubljana is located in the heart of Slovenia, making it a perfect starting point for any trip. The country represents an earthly paradise for outdoor lovers offering a wide range of activities: from skiing to rafting, from climbing to cycling and horse-riding, In Slovenia, due to its relatively small size, you can swim in the sea and climb mountains on the same day.

Find out more about Slovenia​.

​​

Have a look at the ACER traineeship open​ call​.

If interested in applying, fill in the Traineeship Application ​Form​, attach a copy of your diploma and send it to Traineeship(at)acer.europa.eu    

Read carefully the Rules before submitting the application!

Selection procedure

The Agency draws a list of eligible and suitable applicants according to the current needs and available places.

Before the final selection decision, applicants can be contacted by the Hum​​​an Resources Team to verify their availability, suitability, language skills, and to discuss reciprocal expectations. The final decision is then taken by the ACER Director.

All candidates are informed about the outcomes of the selection procedure.

​Traineeship grant

Trainees not receiving a salary, scholarship or other form of financial support are provided with a monthly grant. As of 1st January 2026, the Traineeship grant amounts to 1,332.05 EUR. Trainees can also be awarded some extra contributions:

• Travel expenses (beginning and end of traineeship): Trainees who have completed at least a 3-month traineeship period might be entitled to the reimbursement of their travel expenses.
• Public transportation: All trainees are granted a monthly pass for public transport within Ljubljana.              

FAQ

For more information about the eligibility criteria, rights and duties of trainees, have a look at our FAQs. If you have further questions, contact: Traineeship(at)acer.europa.eu​​

​What do you think about working at ACER?

​

ACER is a lively and stimulating international working environment, full of opportunities, great colleagues and challenges. Having spent several years working for the Italian energy sector, it is such a great opportunity to be able to directly contribute to the harmonisation of the European energy framework.

What I enjoy the most about working at ACER is the diversity of perspectives it brings together and the high level of commitment. Whether your expertise is legal, scientific, or something else, everyone has a real contribution to bring. It’s exciting to know that our work can directly influence the market and make a difference for the benefit of all European citizens, although it comes with responsibilities.

I also really value ACER’s strong commitment to work–life balance. Its modern and efficient European approach to the way we work supports both high professional standards and personal wellbeing. Such balance helps attracting talented people while fostering a motivated, engaged, and high-performing team.

What do you think about your job at ACER?

​

HRM has enormous potential to empower people and to release the potential of teams, especially with such an expert, dedicated and diverse team as ours. I like the strong feeling of community and belonging and the possibility to explore and develop my own interests while serving the rest of the staff. 

...and about living in Ljubljana?

Since I moved back to Ljubljana, my quality of life has improved a lot. I really appreciate the fact I can walk and bike everywhere. 

Ljubljana, despite being small, has a great offer of events and activities for both locals and expats.

Invitations to the interview and written test are sent by the e-mail indicated in the application. The interview is held in English, but the knowledge of other languages may also be tested. Native English speakers can expect to prove their second language skills. The written test is anonymised and conducted in English.

The duration of the written test is between 30-60 minutes followed by 30-60 minutes interview with the appointed Selection Committee.

Candidates invited for an interview, and/or to a medical examination, may be entitled to financial contribution or reimbursement of their travel and subsistence expenses. 

Candidates who successfully achieved a mark equal to or higher than 70% of the total points are placed on a reserve list. Placement on the reserve list does not guarantee an offer letter or recruitment.

The selection process may take several months to be completed. During this period, no information other than the status on current selection procedures is released.

​​All candidates are informed about the outcome of the recruitment procedure.

• ​Believing in a rewarding mission: As an integral part of ACER, you will be contributing to our work towards a fully integrated and well-functioning energy market in Europe.

• Supporting growth and development: We sustain your professional development by providing regular feedback and plenty of training opportunities.

• Being part of a multicultural and dynamic work environment: You will work with experienced colleagues from all over Europe and beyond, interact with the various departments, NRAs and other energy stakeholders. You will have a chance to impart your knowledge and skills to colleagues and trainees.

• Promoting wellbeing: We support your health and wellbeing. We offer private health insurance, and a wide range of welfare services and recreation activities, such as Pilates and yoga classes, football and fitness trainings, cultural activities, Away Days, ergonomic consulting, professional psychological support, or access to confidential counsellors.

• Living in one of the green capitals of Europe: Ljubljana is a city with a green soul that proudly holds the European Green Capital 2016 award.​

Forthcoming calls for tenders (procurement)​ with the indicative title, budget and timing for launch are advertised on the ACER website. 

However, this in​formation is indicative and does not constitute an obligation on ACER to launch any given procedure.

​You can contact ACER Procurement Team at:​

EMail: ACERProcurement(at)acer.europa.eu

Fax: + 386 (0)8 2053 413 ​