Software Engineer

ph3bWho We Are /b /h3 pZefir is building an AI autopilot for home sales in Europe, starting in France: an AI agent runs the entire sale and purchase journey end-to-end, orchestrating local brokers, portals, buyers, and documents. /p pBacked by over $55 million from top-tier investors like Sequoia Capital, we're committed to accelerating life changes for millions of current and future European homeowners. /p h3bEngineering Team /b /h3 pAt Zefir, our Engineering Team is the driving force behind our mission to accelerate life changes. Growing rapidly from 9 to 30+ engineers, we don’t just write code—we solve meaningful problems for our customers. /p pFrom ideation to launch and beyond, engineers at Zefir take full ownership of their work, ensuring that every feature delivers the expected impact. We leverage LLM-based development workflows and shared best practices to automate repetitive tasks, allowing us to keep our codebase lean, scalable, and built for speed. /p h3bResponsibilities/Mission /b /h3 ul liDevelop and deploy robust, high-performance APIs using Node.js (TypeScript), Nest.js, and GraphQL. /li liBuild intuitive frontend applications with React.js and Next.js, delivering outstanding user experiences. /li liCollaborate closely with Product Managers and cross-functional teams (Operations, Growth, Brand) to prioritize features and deliver key objectives. /li liOwn the full lifecycle of features from ideation and design through implementation, deployment, and performance monitoring. /li liWrite clean, maintainable, thoroughly-tested code to ensure fast deployments and continuous improvement. /li liImplement comprehensive end-to-end (E2E) tests to ensure reliability and reduce code review cycles. /li liProactively contribute to strategic decisions about the future direction of our web applications and infrastructure. /li liLeverage LLM-based libraries and implement key AI-driven functionalities (RAG, memory, agentic workflows) using stacks like Pinecone and Langchain. /li /ul h3bQualification /b /h3 ul liEntrepreneurial mindset with a demonstrated ability to turn ambitious ideas into practical solutions. /li liExcellent problem-solving skills, with the ability to quickly evaluate and recommend effective technological solutions. /li liHighly collaborative, open-minded, and comfortable working closely with diverse teams. /li liAmbitious, performance-oriented, and maintains a positive attitude. /li liFluent in English for clear and effective communication. /li /ul h3bBenefits /b /h3 ul liCompetitive salary: You can run your own simulation with our salary calculator. /li liBSPCE (Stock Options): Available for everyone, with monthly vesting after year one, over a 4-year period. /li liHealthcare plan: Full coverage with Alan for team members, their partners, and children. /li liOffice in Le Peletier, Paris (9th arrondissement): With flexible remote work options. /li liSwile meal card: €11 per worked day. /li liSwile mobility card: €42/month to support sustainable transportation (metro, carpooling, biking…). /li liTeam events: Monthly Mixers to connect and share good times, and quarterly All Hands to celebrate wins across the company. /li /ul h3bEEO Statement /b /h3 pWe welcome applications from anyone, regardless of background, gender, sexual orientation, religion, age, or experience. Our team values authenticity and diverse perspectives. /p /p #J-18808-Ljbffr