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About this Alternance - Assistant(e) Project Manager (F/H) role at Amentum

Amentum · Onsite · FR-Marseille
This job posting is in French.

Informations générales – Entité

Amentum Clean Energy France SAS, filiale Française du Groupe Amentum, s’appuie sur son expérience et son expertise en matière de conception, exploitation et maintenance des infrastructures nucléaires afin de répondre au plus près aux besoins de ses clients. 

Amentum France accompagne ses clients sur l’ensemble du cycle de vie d’une installation nucléaire, du support à la construction ou au licensing jusqu’au démantèlement, en passant par le support au parc en exploitation (modifications, augmentation de durée de vie, amélioration du niveau de sûreté, …).

Bénéficiant de deux bureaux stratégiquement implantés à Aix-en-Provence et à Paris, ses collaborateurs se composent d’ingénieurs et de cadres de haut niveau.


Description du poste

Dans le cadre de votre mission, vous participez à la coordination et à la supervision des activités d’ingénierie liées à votre périmètre d’intervention. Sous la responsabilité du chef de projet, vous intervenez dans la réalisation des activités nécessaires à l’atteinte des objectifs qualité, coûts et délais sur le(s) projet(s) qui vous sont confiés.

Vos principales missions seront axées sur :

  • Participer à la préparation et au suivi des appels d’offres
  • Réaliser le chiffrage et contribuer à la rédaction des offres techniques
  • Participer à l’élaboration des plannings d’exécution et à l’analyse des risques
  • Assurer le suivi de l’avancement technique et financier des projets
  • Participer au suivi et à la mise à jour des plannings projets
  • Développer les compétences en gestion de projet
  • Participer à la gestion des risques et au suivi de la charge des ingénieurs
  • Participer aux activités achats : sélection des fournisseurs, contractualisation et suivi des sous-traitants
  • Assurer la mise en œuvre des processus qualité ISO 9001 et 19443 sur les projets
  • Participer aux audits projets

Profil recherché

Vous préparez un diplôme de niveau Bac+5 en alternance

Vous êtes doté(e) d’une forte sensibilité technique et d’une forte rigueur en gestion des projets.

Vos capacités d’analyse et de synthèse sont confirmées.

Vous bénéficiez d’une première expérience en management et d’un excellent relationnel.

Une bonne maîtrise de l'anglais est indispensable pour ce poste (niveau C1 CECRL a minima).

 

Localisation du poste

• Ville : Aix-en-Provence (Bouches-du-Rhône)


Critères candidat

• Niveau d’études minimum requis : Bac +2 et plus

       

Compensation Details:

Amentum France Compensation Package

       

The compensation range or hourly rate listed for this position is provided as a good-faith estimate of what the company intends to offer for this role at the time this posting was issued. Actual compensation may vary based on factors such as job responsibilities, education, experience, skills, internal equity, market data, applicable collective bargaining agreements, and relevant laws.

 

Benefits Overview:

Our health and welfare benefits are designed to support you and your priorities. Offerings include:

  • Health, dental, and vision insurance

  • Paid time off and holidays

  • Retirement benefits (including 401(k) matching)

  • Educational reimbursement

  • Parental leave

  • Employee stock purchase plan

  • Tax-saving options

  • Disability and life insurance

  • Pet insurance

 

Note: Benefits may vary based on employment type, location, and applicable agreements. Positions governed by a Collective Bargaining Agreement (CBA), the McNamara-O'Hara Service Contract Act (SCA), or other employment contracts may include different provisions/benefits.

       

Original Posting:

10/02/2026 - 11/30/2026

Amentum anticipates this job requisition will remain open for at least three days, with a closing date no earlier than three days after the original posting. This timeline may change based on business needs.

       

Amentum is proud to be an Equal Opportunity Employer. Our hiring practices provide equal opportunity for employment without regard to race, sex, sexual orientation, pregnancy (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, or breastfeeding), age, ancestry, United States military or veteran status, color, religion, creed,  marital or domestic partner status, medical condition, genetic information, national origin, citizenship status, low-income status, or mental or physical disability so long as the essential functions of the job can be performed with or without reasonable accommodation, or any other protected category under federal, state, or local law. Learn more about your rights under Federal laws and supplemental language at Labor Laws Posters.

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About Amentum

Amentum has become aware of unauthorized individuals who are falsely using the Amentum name and /or logo in an attempt to solicit fees from potential job seekers. These deceptive and unauthorized individuals are soliciting money, promising placement in a position with Amentum. Please note any communication requesting any amount of money in exchange for employment with Amentum is fraudulent. These communications do not originate from Amentum and are not associated with the recruitment process. Amentum and its affiliates never charge candidates fees or payments of any kind in order to secure employment. As a precaution, we recommend you do not disclose personal or financial details to anyone a

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