Location : Fully remote, CET timezone (/- 2h) Start date : ASAP Languages : French preferred; English not mandatory Our client : Blockchain - Web3 - French Saas Mission: Spearhead the establishment of new and essential technical decisions and best practices by actively suggesting inventive and avant-garde solutions, while providing consistent feedback. Design and oversee the blockchain infrastructure. Formulate network architecture and uphold security standards. Conduct evaluations of existing Blockchain solutions from a technical perspective. Develop high-security technologies. Enrich existing Blockchain projects with new features and enhancements. Integrate Blockchain technology into current applications. Collaborate with product managers and cross-functional teams to generate innovative concepts. Be accountable for achieving the technical roadmap objectives. Address and resolve technical obstacles. Uphold the quality of the codebase. Desired Skills and Qualifications: Demonstrated ability to propose imaginative solutions, proactive in suggesting product improvements, and a constant desire to challenge conventional practices. Strong knowledge building APIs Proficiency in Rust programming language. Understanding of Blockchain technology and associated principles. Proficiency with Ethereum Blockchain, including its functionality, applications, and Solidity. Experience in developing smart contracts. Proficiency in designing and architecting Blockchain projects and applications. Familiarity with project development on various Blockchain platforms. Familiarity with protocols like ERC20, ERC721, and others. Sound grasp of fundamental encryption mechanisms. Experience in peer-to-peer networking. Knowledge of test-driven development. Basic understanding of database technologies, including SQL. Strong communication skills. Ability to collaborate effectively within a team. Knowledge of dev ops is beneficial. Knowledge of Cairo is advantageous. Tech Stack: Languages: Primarily utilize Cairo and Rust for Infrastructure. Tools: Employ a Monorepo with turborepo, along with Github and Github-CI. App: Utilize React, TRPC, nextjs, and next auth. Design System/UI: Implement Tailwind. API: Work with PostgreSQL and Prisma. Testing: Leverage Cypress, Jest, and Supertest. Infrastructure: Use AWS with CDK, Lambda, ApiGateway, DynamoDB, ECS, and EC2