PORTFOLIO / 2025

Marius
Selles

NegotiatorDeveloperMarketerEntrepreneurE-commerce

Final-year student seeking a graduation internship to expand my skillset. Eager to learn and grow, I am ready to tackle new challenges within a stimulating environment.

Looking for internship
Mulhouse, France · Open to relocation
CURRENTLY
Bachelor's in Business Administration
Looking for internship
Available immediately
SKILLS
B2B SalesProspectingAICRMNegotiation

Work Experience

2021 — 2025
2024

Sales Representative

MOBYDEV
Sept. 2024 — Dec. 2025

Drove the company's 300% scale-up (from 2 to 8 employees) by designing 5 new B2B service offerings and structuring key operational processes. Shifted focus from execution to strategy, building a scalable business infrastructure that enabled sustainable hyper-growth.

B2BAI/No-CodeRecruitmentProspecting
2023

Business Development Associate (Work-Study)

CHOCO STORY
2023 — 2024

Outperformed individual targets by generating 75% of the team's total additional sales through customer needs analysis and proactive upselling strategy. Extended brand visibility by negotiating and securing strategic local partnerships.

SalesUpsellingPartnerships
2021

Operational Reservist

FRENCH ARMY (Régiment de Marche du Tchad)
Since 2021

Developed critical decision-making skills in uncertain environments. Demonstrated consistent commitment and discipline, validated by integration into a demanding marine infantry regiment. Strengthened team cohesion under intense stress.

LeadershipDisciplineCrisis Management

Education

Oct. 2023 - July 20263 years

Bachelor's in Business Administration

Université de Haute-Alsace, Colmar - Marketing digital, entrepreneurial, e-business pathway. Work-study program.

Summer 20253 months

Visitor Scholar

Sainsbury Wellcome Centre for Neural Circuits and Behaviour, London - Research and academic exchange program.

2022-20231 year

Double Degree in Economics & Philosophy

Faculté de Droit, Sciences économiques et Gestion de Nancy - Economics, philosophy, critical thinking.

2021-20221 year

Preparatory Class for Business Schools

Collège Épiscopal Saint Etienne, Strasbourg - Intensive preparation for competitive entrance exams.

2019-20212 years

Political Science

ESSPA Formation - Preparation for IEP competitive exams. Member of Student Association (BDE).

Contact Me

AVAILABILITY & CAREER PATH

Open to opportunities starting March 2026 for a 3-month internship (End of Bachelor's degree).

marius.selles@gmail.com
+33 6 63 84 83 10
Mulhouse, France
LANGUAGES
French: Native
English: C1
German: B1
Spanish: B1
SOCIAL
INTERESTS
FitnessBoxingFootballArtGeopoliticsEntrepreneurshipArtificial IntelligenceSoftware Development
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