Laboratoire GlaxoSmithKline S.A.S. Posted April 2, 2026

Alternant Ingénieur - Chef de Projet Production H/F

Mayenne, France Full time
Manufacturing & CMC

Laboratoire GlaxoSmithKline S.A.S. is the source of truth for this posting and owns the application process. We surface normalized context and market comparison you won't find on the original listing.

About this opportunity

Le Laboratoire GSK recherche un(e) Alternant(e) Ingénieur - Chef de Projet Production H/F pour son site basé à Mayenne (53) pour une durée minimum de 1 an.

Au sein de l'équipe Production, vous aurez pour principales missions :

•    Assurer la maîtrise des processus fondamentaux EHS (EDR …), Qualité (CAPA, MC, AMDEC vide de ligne …) via la revue et l’amélioration des processus (AI, Gemba et confirmation de process) et des gouvernances de pilotage associées.

•    Garantir un support opérationnel en étroite collaboration avec les responsables d’équipes

•    Garantir le respect des objectifs sur les indicateurs associés à ces processus (KPI) : amélioration continue

•    Mise à jour de documents du flux

•    Réalisation d’améliorations du secteur

•    Assurer la gestion des déviations mineures.

•    Gestion de projet : planification, gouvernance, respects de la qualité / des délais / des moyens, bilan / AAR

Profil recherché :

Formation supérieure de niveau BAC +4 à +5 : Ingénieur (vous intégrez votre 2ème ou 3ème année de cursus).

Bon niveau d’anglais

Curiosité

Travail en équipe

Force de proposition

Esprit de synthèse

Ce challenge vous intéresse ? N’hésitez pas à postuler !

A PROPOS DE GSK MAYENNE:

Situé en région Pays-de-la-Loire, le site de Mayenne (35 kms de Laval) est spécialisé dans la fabrication et le conditionnement d’antibiotiques à base de pénicillines sous formes orales sèches (comprimés, gélules, sachets, poudre pour suspensions buvables).

Ce sont plus de 400 collaborateurs qui chaque jour sont fiers d’œuvrer pour la santé de patients dans plus de 110 pays. Nos fondamentaux Sécurité et Qualité engagent nos collaborateurs au quotidien pour eux-mêmes et pour nos patients.

Grace à une politique d’investissement soutenue, le site maintient son fort niveau de compétitivité et s’inscrit dans une démarche d’amélioration continue permanente.

L’engagement environnementale du site volontariste nous permet aujourd’hui d’avoir la plus faible empreinte carbone du groupe.

A PROPOS DE GSK :

GSK est une entreprise biopharmaceutique de premier plan en France, en termes de présence et d’emploi, avec plus de 3.300 collaborateurs répartis au sein de 3 sites de production (Evreux, Mayenne et Saint-Amand-les-Eaux) et du siège social (Rueil-Malmaison).

Notre mission est d’unir science, technologie et talents pour devancer ensemble la maladie. Nous prévenons et traitons les maladies grâce aux vaccins et médicaments de médecine générale et de spécialité. Nous concentrons nos efforts sur la science du système immunitaire, la génétique humaine et les technologies de pointe. Nous investissons dans quatre domaines thérapeutiques essentiels (maladies infectieuses, VIH, oncologie et immunologie) et saisissons toutes les opportunités futures qui peuvent avoir un impact sur la santé à grande échelle. Notre objectif est d’avoir un impact sur la vie de plus de 2.5 milliards de personnes.

Nous recrutons des personnes qui croient en notre mission, incarnent notre culture et veulent nous aider à atteindre nos ambitions. Dans notre environnement de travail, chacun est valorisé, intégré, apprécié pour sa personnalité et ses différences. Nous favorisons également l’épanouissement de nos collaborateurs, avec des projets stimulants qui répondent aussi bien à leurs aspirations qu’aux besoins futurs de nos activités.

Pour en savoir plus vous pouvez consulter les ressources suivantes :

www.GSK.fr

www.GSK.com

GSK: Life | LinkedIn

*LI-GSK

Why GSK?

Uniting science, technology and talent to get ahead of disease together.

GSK is a global biopharma company with a purpose to unite science, technology and talent to get ahead of disease together. We aim to positively impact the health of 2.5 billion people by the end of the decade, as a successful, growing company where people can thrive. We get ahead of disease by preventing and treating it with innovation in specialty medicines and vaccines. We focus on four therapeutic areas: respiratory, immunology and inflammation; oncology; HIV; and infectious diseases – to impact health at scale.

People and patients around the world count on the medicines and vaccines we make, so we’re committed to creating an environment where our people can thrive and focus on what matters most. Our culture of being ambitious for patients, accountable for impact and doing the right thing is the foundation for how, together, we deliver for patients, shareholders and our people.

Should you require any adjustments to our process to assist you in demonstrating your strengths and capabilities contact us on [email protected]

Please note should your enquiry not relate to adjustments; we will not be able to support you through these channels.

GSK is an Equal Opportunity Employer. This ensures that all qualified applicants will receive equal consideration for employment without regard to race, color, religion, sex (including pregnancy, gender identity, and sexual orientation), parental status, national origin, age, disability, genetic information (including family medical history), military service or any basis prohibited under federal, state or local law.

Important notice to Employment businesses/ Agencies

GSK does not accept referrals from employment businesses and/or employment agencies in respect of the vacancies posted on this site. All employment businesses/agencies are required to contact GSK's commercial and general procurement/human resources department to obtain prior written authorization before referring any candidates to GSK. The obtaining of prior written authorization is a condition precedent to any agreement (verbal or written) between the employment business/ agency and GSK. In the absence of such written authorization being obtained any actions undertaken by the employment business/agency shall be deemed to have been performed without the consent or contractual agreement of GSK. GSK shall therefore not be liable for any fees arising from such actions or any fees arising from any referrals by employment businesses/agencies in respect of the vacancies posted on this site.

Please note that if you are a US Licensed Healthcare Professional or Healthcare Professional as defined by the laws of the state issuing your license, GSK may be required to capture and report expenses GSK incurs, on your behalf, in the event you are afforded an interview for employment. This capture of applicable transfers of value is necessary to ensure GSK’s compliance to all federal and state US Transparency requirements. For more information, please visit the Centers for Medicare and Medicaid Services (CMS) website at https://openpaymentsdata.cms.gov/

Job details

Seniority
Not listed
Function
Manufacturing & CMC
Therapeutic area
Not listed
Location
Mayenne, France
Employment type
Full time

How this role compares

Computed from every other active Manufacturing & CMC role in our database, not just this employer's listings.

We currently track 1527 comparable Manufacturing & CMC roles across 124 biopharma companies.

1527Comparable roles tracked
1434Currently active
124Companies hiring similar roles
44Countries represented

Salary context

456 of 1527 peers report a salary range (USD, annualized)

Peers share this role's job function. This posting doesn't list a seniority level, so peers aren't narrowed by seniority either -- the range below may span more levels than usual.

This roleSubject Not listed on this posting
Lowest disclosed · Senior Scientist II – CMC Developmental Sciences · AbbVie $0/hr – $0/hr (≈ $0–$0/yr)
Peer group range $0 – $540,400 (median $140,000)

Where these roles are based

Top locations among the 1527 comparable roles

United States782
India104
Germany74
Singapore67
France63
Ireland54

+ 38 more countries

Seniority mix

705 of 1527 peers have a known seniority level

Senior251
Manager165
Principal79
Associate68
Director64
Associate Director44
Senior Director21
Intern/Fellow/Postdoc8
Executive/VP5

Therapeutic area mix

7 of 1527 peers have a known therapeutic area; the rest are genuinely unlabeled, not hidden

Vaccines & Infectious Disease6
Oncology1

Similar opportunities

The closest matches from our peer group, ranked by how similar they are, not how well you'd qualify for them -- treat this as market context, not a guaranteed shortlist; a weak match is labeled as one below.

40%similar
sanofi aventis Recherche et Développement Vitry-sur-Seine, France
Same function Same country
40%similar
Sanofi Winthrop Industrie Sisteron, France Senior
Same function Same country
40%similar
sanofi aventis Recherche et Développement Montpellier, France
Same function Same country
40%similar
sanofi aventis Recherche et Développement Vitry-sur-Seine, France Senior
Same function Same country
40%similar
sanofi aventis Recherche et Développement Montpellier, France Senior
Same function Same country
40%similar
sanofi aventis Recherche et Développement Vitry-sur-Seine, France
Same function Same country

How we calculate "similar"

No black box, no LLM guesswork: a deterministic score built from four normalized attributes. Here's this role's own peer group at different match levels, so you can see the mechanism, not just the result.

Every comparison starts from the same 100-point budget: 25 for working in the same function, 40 for the same therapeutic area, 20 for the same or adjacent seniority, 15 for the same country. A dimension we can't confirm on both sides contributes nothing, never a guess, never a free pass.

40%
alternance 12 mois – développement analytique & IA
sanofi aventis Recherche et Développement · Vitry-sur-Seine, France · Seniority not listed
Function Therapeutic area Seniority Country
40%
Biocatalysis Senior Scientist
sanofi aventis Recherche et Développement · Vitry-sur-Seine, France · Senior
Function Therapeutic area Seniority Country
40%
Conducteur de Procédés de Fabrication F/H – CDI
Mylan Laboratories S.A.S. · Chatillon-sur-Chalaronne, France · Seniority not listed
Function Therapeutic area Seniority Country
40%
Alternance Ingénieur(e) Pédagogique
Glaxo Wellcome Production S.A.S. · Mayenne, France · Seniority not listed
Function Therapeutic area Seniority Country
Unmatched or unknown dimensions score exactly the same: 0 points, never a partial guess. A role we know almost nothing about beyond its function bottoms out at 25%; it never inflates to 100% just because there's little to compare against. Seniority uses a defined ladder (Associate → Manager → Associate Director → Senior → Principal → Director → Senior Director → Executive/VP) so "Director" and "Senior Director" count as adjacent, but "Director" and "Executive/VP" do not.