Administrative Assistant (Grade AST3) with the Clean Hydrogen Joint Undertaking

Job notes

Employer: Clean Hydrogen Joint Undertaking
Status: Open
Contract type: Temporary Staff
Opening date: 2026-10-12T12:00:00+00:00
Deadline: 2026-11-15T22:59:59+00:00

Application page
Details

Status

Open

Opening date

12 October 2026

Deadline

15 November 2026, 23:59 (CET)

Department

Clean Hydrogen Joint Undertaking

Agency

CLEAN HYDROGEN JU - Clean Hydrogen Joint Undertaking

Vacancy Type

Public

Type of Contract

Temporary Staff

Grade

AST3

Location(s)

Brussels, Belgium

Target audience

QUALIFICATIONS AND EXPERIENCE REQUIRED

Candidates will be considered for the selection phase based on the following formal criteria, which must be fulfilled by the deadline for applications:

3.1 ELIGIBILITY CRITERIA

The Administrative Assistant will be selected based on the following criteria:

A level of education of at least:a level of post-secondary education attested by a diploma, ora level of secondary education attested by a diploma giving access to post-secondary education, and appropriate professional experience of at least three yearswhere justified in the interests of the service, professional training or professional experience of an equivalent level.

a level of post-secondary education attested by a diploma, or

a level of secondary education attested by a diploma giving access to post-secondary education, and appropriate professional experience of at least three years

where justified in the interests of the service, professional training or professional experience of an equivalent level.

At least 6 (six) years of professional experience relevant to the activities;

Thorough knowledge of one of the languages of the European Union and a satisfactory knowledge of another language of the European Union to the extent necessary for the performance of his/her duties; the working language in the Clean Hydrogen JU is English;

Be a national of one of the Member States of the European Union;

Enjoy full rights as a citizen

Have fulfilled any obligations imposed on him/her by the laws of their home country concerning military service;

Meet the character requirements for the duties involved;

Be physically fit to perform his/her duties.

Only diplomas and certificates that have been awarded in EU member states or that are the subject of equivalence certificates issued by authorities in the said Member States shall be taken into consideration

Prior to the appointment, the successful candidate will be asked to provide a certificate issued by the competent authority attesting the absence of any criminal record.

Respond to the consultation

Official vacancy notice
Ongoing selection procedures

12 October 2026

Assistant (CA FG III) to the Executive Director and Heads of Units of the Clean Hydrogen Joint Undertaking - Ref. CleanH2JU/CA FGIII/2026

The Clean Hydrogen JU is publishing a vacancy notice for an Assistant to the Executive Director and Heads of Units (FGIII).

For more information, please consult the vacancy notice.

Closing date for submission is 15 November 2026, at 23:59 CET

Location: Brussels, Belgium

Administrative Assistant (Temporary Agent – Grade AST3) - Ref. CleanH2JU/Administrative Assistant/2026

The Clean Hydrogen JU is publishing a vacancy notice for an Administrative Assistant (AST3).

23 January 2025

Seconded National Expert (SNE) - Ref. CleanH2JU/SNE/2024/permanent

The Clean Hydrogen JU is publishing a vacancy notice for a Seconded National Expert (SNE) in the Operations and Communication Unit. The jobholder will report to the Head of Unit and will reinforce the capabilities of the Clean Hydrogen JU to both manage a large portfolio of projects but also to report on the activities/results within these projects and beyond, contributing through the dissemination and communication activities to the different EU policies.

For more information please consult the vacancy notice.

This call for expressions of interest is permanently open.

Closed Vacancies

5 August 2025

CLOSED - Traineeship – Operations and Communication Unit

The Clean Hydrogen JU is publishing a vacancy notice for a Trainee in the Operations and Communication Unit.

Closing date for submission is 30 September 2025, at 23:59 CET.

7 July 2025

CLOSED - Traineeship – Finance and Administration Unit

The Clean Hydrogen JU is publishing a vacancy notice for a Trainee in the Finance and Administration Unit.

Closing date for submission is 15 August 2025, at 23:59 CET.

30 April 2025

CLOSED - Stakeholders Relationships Officer (Contract Agent FGIV) – Ref. CleanH2JU/CA FGIV/2025/01

The Clean Hydrogen JU is publishing a vacancy notice for a Stakeholders Relationships Officer.

Closing date for submission is 31 May 2025, at 23:59 CET.

16 April 2025

CLOSED - Contract and Document Management Assistant (CA FG III) - Ref. CleanH2JU/CA FGIII/2025/02

The Clean Hydrogen JU is publishing a vacancy notice for a Contract and Document Management Assistant (Contract Agent Function Group III).

2 December 2024CLOSED - Project Officer (Grade AD5) - Reference: CleanH2JU/PO/AD5/2024/05

The Clean Hydrogen JU is publishing a vacancy notice for a Project Officer (Grade AD5).

The jobholder will report to the Head of Operations and Communication Unit. He/she will be responsible for the implementation of the multi-annual and annual work plans of the Clean Hydrogen JU, and consequently for the entire life cycle of a portfolio of projects that cover research, innovation and demonstration activities of FCH technologies in various sectors/applications. He/she will also be responsible for monitoring of the key performance indicators (KPIs) and associated targets in his projects portfolio, while maximizing the impact of the Clean Hydrogen JU overall programme implementation through dissemination of projects results and achievements, including feedback to policy.

Closing date for the submission is 31 January 2025, at 23:59 CET.

21 August 2024

CLOSED - Knowledge Management Officer (Temporary Agent, Grade AD6) - Reference: CleanH2JU/AD6/2024/03

The Clean Hydrogen JU is publishing a vacancy notice for a ‘Knowledge Management Officer’.

The Knowledge Management Officer will report to the Head of Operations and Communication Unit. He/she shall be responsible for creating, sharing, using and managing the knowledge and information in the Clean Hydrogen JU, in particular the management of all knowledge coming from the JU activities, including projects results as well as technology progress against the state of the art and targets, but also the market development conditions and ultimately benchmarking to other geographical areas.

The knowledge management activities will contribute to the overall objective of improved performance, EU competitive advantage, innovation, the sharing of lessons learned, integration and continuous improvement of the JU, while monitoring its activities and their performance against the Horizon Europe KPIs and providing input and feedback to EU policies.

The Knowledge Management Officer shall follow developments in the area of Fuel Cells and Hydrogen, including existing EU and national policies and legislation. He/she should be able to analyse this knowledge and make it purposeful, concrete and action-orientated, and place accordingly the JU within the EU landscape/policy.

Closing date for the submission is 30 September 2024, at 23:59 CET.

21/06/2024

CLOSED - Traineeship vacancies

The Clean Hydrogen JU is publishing vacancy notices for two trainees to join its team for 6 months period in the Operations and Communications unit, and respectively in the Finance and Administration Unit.You can find more details in the documents linked below :

Traineeship in the Operations and Communications Unit - 2024/2025

Traineeship in the Finance and Administration Unit 2024/2025

The application deadline for both positions is 15 July 2024.

31 May 2024

CLOSED - Assistant (CA FG III) to the Executive Director and Heads of Units - Ref. CleanH2JU/CA FGIII/2024/02

The Clean Hydrogen JU is publishing a vacancy notice for an Assistant to the management of the JU incl. Executive Director and Heads of Units (Contract Agent Function Group III).

The jobholder will report to the management of the JU, mainly to the Executive Director.

The position consists in assisting the Executive Director and the Heads of Units (HoUs) in managing their agenda, correspondence, missions and documents, and in supporting them in the logistic organization of meetings.

This call for expressions closed on 31 May 2024.

30 April 2024

CLOSED - Financial Officer - Ref. CleanH2JU/FO/AST4/2024/01

The Clean Hydrogen JU is publishing a vacancy notice for a Financial Officer. The jobholder will report to the Head of Unit for Finance and Administration. His/her primary responsibility will be the financial and contractual management of a portfolio of EU grants over their full lifecycle, in coordination with other actors involved in grant management. The tasks described below will be performed for the Horizon Europe programme mostly, with management of legacy grants under the Horizon 2020 programme.

This call for expressions closed on 30 April 2024.

6 November 2023

CLOSED - Financial Officer (AST3-AST5) - inter-agency mobility selection

The Clean Hydrogen JU is publishing a vacancy notice for a Financial Officer (Grade bracket AST3-AST5) . The jobholder will report to the Head of Unit for Finance and Administration. His/her primary responsibility will be the financial and contractual management of a portfolio of EU grants over their full lifecycle, in coordination with other actors involved in grant management.

For applications to be valid, candidates must submit an online application via the vacancies portal.

Apply now Closing date for the submission is 30 November 2023, at 23:59 CET.

7 July 2023

CLOSED - Synergies Officer (Grade AD6) with the Clean Hydrogen Joint Undertaking

The Clean Hydrogen JU is publishing a vacancy notice for a ‘Synergies Officer’ (Grade AD6).

The jobholder will report to the Head of Unit for Operations and Communications. He/she will also work closely with all stakeholders, in particular Commission services and private members Hydrogen Europe and Hydrogen Europe Research but also across all Members States and entire value-chain.

Please click here for more details.

Deadline for applications: 30 September 2023.

25 April 2023

CLOSED - Seconded National Experts (SNEs) in the Operations and Communication Unit of the Clean Hydrogen Joint Undertaking

The Clean Hydrogen JU is launching a call for candidates who are interested in a secondment as Seconded National Experts (SNEs).

Candidates should send their applications, preferably in English and clearly indicating the vacancy reference number: CleanH2/SNE/2023 only to the Permanent Representation to the EU of their country, or the EFTA Secretariat or the administration of the IGO.

Deadline for applications: 15 September 2023.

18 January 2023

CLOSED - Clean Hydrogen Joint Undertaking – Publication of a vacancy for the function of Executive Director (Temporary Agent – Grade AD 14).

The function of the Executive Director of the JU who shall perform the functions of chief executive responsible for the day-to-day management of the JU in accordance to the decisions of the Governing Board, shall also be its legal representative and shall be accountable to the Governing Board of the JU. She/he shall provide leadership and direction across the activities of the JU and will be central to ensuring staff engagement and promoting a positive and healthy work environment.

Apply now

Please check the Official Journal Publication for more details (in all EU Languages).

You can also download the vacancy notice ( in EN ) below.

Deadline for applications: 14 February 2023

CLOSED - 11 November 2022

The Clean Hydrogen JU is publishing a vacancy notice for a Budget Officer (Grade AD5).

Deadline for applications: 15 January 2023

Declaration of conflict of interest by candidates

CLOSED - 3 June 2022

The Clean Hydrogen JU is launching a call for candidates who are interested in a secondmentas Seconded National Experts (SNEs):

Candidates should send their applications, preferably in English and clearly indicating thevacancy reference number: CleanH2/SNE/2022 only to the Permanent Representation to theEU of their country, or the EFTA Secretariat or the administration of the IGO.

Deadline extended for applications: 3 October 2022 (23:59, Brussels time)

CLOSED - 15 September 2021

The FCH JU is currently setting up a reserve list for the following positions:

Legal Assistant

Temporary Agent (M/F)

Ref.: FCH 2 JU/AST3/2021/03

Grade: AST 3

Deadline for applications: 30 November 2021 (23:59, Brussels time)

To read the full vacancy notice or apply for this position, please visit our vacancies portal (

Applicants will be kept informed of the outcome of their application.

Privacy statement

CLOSED - 29 June 2021

Project Officer

Ref.: FCH2JU/AD5/2021/02

Grade: AD 5

Deadline for applications: 19 September 2021 (23:59, Brussels time)

Other closed selection procedures are available on the Fuel Cells and Hydrogen Joint Undertaking (FCH JU) website