Lead developer – Senior full stack & blockchain Developer H/F

Salaire : 75K à 120K €
Début : 14 juillet 2024
Télétravail fréquent
Éducation : Bac +5 / Master

OSS Ventures
OSS Ventures

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Le poste

Descriptif du poste

As part of the acceleration of our activities, we are looking to strengthen our team with a senior full-stack developer who will contribute to ensuring the development and quality of our services over time. 

An interest in the finance and/or crypto sector will make their experience even more thrilling.

Our platform of services which range from a mobile App, a distributed and decentralized ledger, a battery State-of-Health (SoH) monitoring and a full set of interoperable APIs to communicate with some of the biggest car industry stakeholders. 

As a full stack developer, you will:

  • work with and report directly to the CEO for the dev. of Car and Battery Passport

  • develop and or lead the Blockchain and NFT implementation on EVM and/or XRPL

  • takeover the existing Mobile App development

  • Develop the Battery SoH algorithms and services with Battery experts

  • Apply AI on car and battery data

  • Interconnect and develop APIs to integrate the multiple offers of our partners

  • Comply with Catena-X European standard.

Profil recherché


You love computer science challenges; you are curious, very committed in what you do, have a strong either startup of big tech company background, and have a good appetite for new technologies and breakthrough of innovations. An interest in blockchain technology is a plus.

  • software engineer expert and full-stack developer with at least 4-5 years of experience

  • At least 1 year of experience working with EVM-based blockchains.

  • Good problem-solving skills

  • High attention to detail

  • Project management in Agile mode (SCRUM)

  • Interest in architecture and code organization

  • Excellent communication in French and English

  • Ability to work well as part of a team

  • Someone who can resolve problems with limited oversight

  • Autonomous and out-of-the-box thinker

  • Passionate about clean and well-documented code

  • Effective communication


  • Strong academic background with a PhD, an MSc/Meng, a BSc/BEng in computer science

  • Knowledge of the Web3 ecosystem and strong interest for Blockchain development (Solidity) in EVM 

  • Strong Nodejs + framework (Express, Apollo, nestJS) or Python + Django skills and API architecture experience, java.script

  • Architecture, maintainment and deployment of SQL/No-SQL database

  • Experience with user tracking and event measurement using Google Analytics/Amplitude and production of reports using Google Data studio

  • Ability to develop or manage a Front-end developer under FLUTTER

  • Experience in reactive programming (Rx), ELK Stack, and containerization (Docker…)

  • A clear understanding of foremost importance of industrializing API management 


  • Working in an international global environment, in Europe, may be US

  • Working in a creative and an agile environment

  • Working for a greener planet!

  • Achieve great and ambitious projects. 

Salary package €75k-120k + BSPCE will be adapted to your background accordingly.

Location: Paris and or other cities in Europe.

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