Vacancies

We are looking for a Human Resources Officer – Data & Processes to strengthen our data-driven HR function and support the continuous improvement of workforce planning, reporting, and HR operational processes.

In this role, you will contribute to the development of reliable HR analytics, performance metrics, and executive reporting, enabling evidence-based decision-making and organisational planning. You will play a key role in maintaining and analysing HR data, supporting the implementation of modern reporting tools, and helping drive the digital transformation of HR processes across the Agency. Additionally, you will coordinate trainee and graduate programmes, supporting recruitment, onboarding, development activities, and programme evaluation.

Reference: ACER/2026/03

Published: 5 February 2026

Deadline to submit applications: 5 March 2026, 14:00 CET

We are looking for a Human Resources Officer to lead the development of policies and workforce strategies while ensuring strict compliance with regulatory frameworks and EU Staff Regulations. 

In this role, you will provide strategic advisory support to senior management across the full employee lifecycle, driving modern talent management and performance processes. Additionally, you will oversee HR analytics and executive reporting to deliver data-driven insights that enhance organizational governance and operational efficiency.

Reference: ACER/2026/02

Published: 5 February 2026

Deadline: 5 March 2026, 14:00 Ljubljana Time

We are looking for a Policy Officer – Security of Supply with expertise in analysis and modelling of the power system with a focus on security of supply and supply adequacy. The candidate  will also have experience in leading complex projects and working with diverse stakeholders.

In this role, you will have the opportunity to play a crucial role in contributing to the tools, solutions and oversight related to the assessments of the European energy system needs. 

Reference: ACER/2026/01

Published: 27 January 2026

Deadline: 24 February 2026, 14:00 Ljubljana Time

The Agency may offer positions to experienced and highly-motivated Seconded National Experts (SNE), who will work together with the Agency’s staff.

No deadline for applications

Reference: ACER/SNE/2023/OC

Are you a strongly motivated, highly qualified and competent young professional? If your answer is yes, you landed in the right place.

ACER traineeship programme aims to attract university graduates who are interested in developing professionally by embarking on an exciting learning opportunity.

No deadline to apply.

You can be contacted at any time to join us for March or September semester.

Reference: ​ ACER/TRAINEE/2024/OC

The ACER graduate programme aims to attract graduates with a completed Master Degree and PhD students who are interested in developing professionally by embarking on an exciting learning opportunity in EU energy regulation in its offices in Ljubljana, Slovenia.

The aim is to create a pool of fresh talent capable of contributing to core ACER tasks and policy and creating a bridge with the latest academic insights.

No deadline to apply.

Reference: ​ ACER/GRADUATE/2023/OC