AT FOSINA WE ARE…
We are a team of passionate experts that love what we do and this is how we succeed to develop cutting-edge technologies
We are agile and this allow us to bring smart ideas together rapidly and build solutions that can have changing impact for our clients.
We believe that key of success is based on diverse backgrounds and perspectives that make us a stronger company.
We dream big, take chances, and always aim for more. We build disruptive products that help sensing the world.
THE FOSINA BENEFITS…
- Great responsibilities to have a chance to make a real impact
- Competitive salaries
- Excellent family care
- Paid time off and flexible policies
- Food allowance
- 10min walk from Rueil-Malmaison station and 20 min from Paris
Bring your stone to the building and start the recruitment process by watching the open positions, submit a spontaneous application or apply for an internship at FOSINA!
We’re building a diverse team with complementary skills and encourage you to apply, even if you don’t tick every box on the job post. At FOSINA we are working on multi-disciplines such as software, electronics, optics, data processing and machine learning so if you are interested, send us your resume and the reasons of your excitement at contact@fosina.fr !
OPEN POSITIONS…
Updated on: 17/02/2026
Nanterre (92) – On site
YOUR RESPONSIBILITIES
- As an Electronics Engineer at FOSINA, you will be part of a cross-functional team comprised of opto-electronics, firmware, software and electrical engineers.
- You will design, code, test, integrate and maintain the electronics PCBs for various distributed fiber optic sensors.
- You will work mainly on FPGA design and also follow the electronics PCB updates.
- You will keep an eye towards the customer experience, ensuring that all PCBs are reliable and suitable for our diverse operations.
- You will be setting up and designing experiments to gather necessary data for development or to test algorithms.
- You will provide comprehensive explanation of algorithm to transfer to Software team and support them for debugging and validation to ensure code and results are production ready.
YOUR PROFILE
- Expertise in VHDL
- DSP experience with demonstrated performance creating new algorithms from ideation through implementation.
- Applicants shall have experience working with big data sets, and experience implementing signal processing or complex algorithms in software or embedded systems. Candidate should be able to demonstrate an effective background in software design and engineering. Experience with real time software and multi-threaded processing is recommended.
- Experience with AI / Machine Learning.
- You like challenges and working for fast growing startup.
- Innovative and knowledgeable and be able to adapt to changing requirements while still producing quality algorithms with tight deadlines.
- Experience with optics is a plus.
- The ideal candidate is self-driven, has effective communication skills and is comfortable tasking and working with fellow engineers to create complete end-to-end systems. Occasional travels to support field exercises may be required.
OUR OFFER
- Challenging, versatile and influential work based on state-of-the-art technology.
- An agile and open international corporate culture based on trust and respect.
- Competitive compensation and benefits, flexible working hours.
- Personal development and career paths.
- Office is ideally located near train station and highway.
Are you ready to play a BIG role in a small team instead of a SMALL role in a big team?
Email us your CV stating the job role you are interested in to: contact@fosina.fr
Updated on: 17/02/2026
Nanterre (92) – On site
YOUR RESPONSIBILITIES
As an Optoelectronics Engineer at FOSINA, you will be part of a cross-functional team comprised of opto-electronics, firmware, software and electrical engineers.
You will design, test, integrate and maintain the optoelectronics assemblies for various distributed fiber optic sensors.
You will work on the integration of optoelectronic assemblies into FOSINAs family of DFOS systems.
You will keep an eye towards the customer experience, ensuring that all assemblies are reliable and suitable for our diverse operations.
You will be setting up and designing experiments to gather performance data for development or to test algorithms.
You will create comprehensive reports on the performance of the assemblies to ensure that FOSINA remains best in class for metrology.
YOUR PROFILE
Expertise in optoelectronic and photonic component capabilities
Familiarity with Python and other basic scripting languages on both Windows and Linux.
Knowledge of optical amplification principles.
Understand the troubleshooting process and root cause analysis approach to problem solving.
Experience of optical assembly and practical tasks is a plus.
You like challenges and working for a fast growing startup.
Innovative and knowledgeable and be able to adapt to changing requirements while still producing quality algorithms with tight deadlines.
The ideal candidate is self-driven, has effective communication skills and is comfortable tasking and working with fellow engineers to create complete end-to-end systems. Occasional travels to support field exercises may be required.
OUR OFFER
- Challenging, versatile and influential work based on state-of-the-art technology.
- An agile and open international corporate culture based on trust and respect.
- Competitive compensation and benefits, flexible working hours.
- Personal development and career paths.
- Office is ideally located near train station (rer A) and highway (A86).
Are you ready to play a BIG role in a small team instead of a SMALL role in a big team?
Email us your CV stating the job role you are interested in to: contact@fosina.fr
Stage Marketing & Communication – 6 mois (H/F)
Lieu : Nanterre (92)
Début : Dès que possible
À propos de FOSINA
FOSINA est une startup innovante qui transforme la fibre optique en capteur ultraprécis. Nous intervenons dans l’océanographie, le ferroviaire, l’énergie, la surveillance de structures et la sécurité. En pleine croissance, nous recherchons un(e) stagiaire motivé(e) pour renforcer notre stratégie marketing et communication.
Missions
Stratégie marketing & communication
– Élaborer une stratégie digitale.
– Structurer et planifier la présence sur les réseaux (LinkedIn, newsroom du site).
– Mettre en place un calendrier éditorial.
– Définir des KPI et suivre les performances.
Création de contenus
– Réaliser et monter des vidéos (produit, vulgarisation, interviews, démonstrations).
– Rédiger brochures, supports commerciaux et fiches produit.
– Contribuer à la rédaction d’études de cas avec l’équipe technique.
– Participer à l’optimisation du site web.
Design & image de marque
– Harmoniser la charte graphique et les templates.
– Créer des visuels pour les réseaux sociaux et les supports commerciaux.
Profil recherché
Étudiant(e) en Master (Bac +5) en marketing, communication ou design.
Passionné(e) par les technologies de pointe et l’industrie.
Maîtrise professionnelle de LinkedIn et des autres réseaux sociaux.
Compétences en création graphique (visuels, vidéos).
Excellentes capacités rédactionnelles en français et en anglais (niveau B2 minimum).
La connaissance de WordPress ou d’autres CMS est un plus.
Ce que nous offrons
Immersion au coeur d’un environnement technologique et innovant
Encadrement quotidien par notre équipe technique et marketing.
Possibilité de travailler sur des projets concrets et visibles rapidement.
Ambiance startup dynamique, avec des échanges fréquents entre les équipes.
Bureaux facilement accessibles : moins de 15 minutes du RER A.
Candidature
Postulez dès maintenant en envoyant votre CV et votre lettre de motivation (en français ou en anglais) à contact@fosina.fr