Zefir
Software Engineer
3mo ago
EuropeRemotenode.jstypescriptnest.jsgraphqlreact.jsnext.js
Develop and deploy robust APIs and frontend applications for AI-driven home sales platform, collaborating across teams to deliver impactful features.
About the company
- Zefir 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.
- Backed 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.
Responsibilities
- Develop and deploy robust, high-performance APIs using Node.js (TypeScript), Nest.js, and GraphQL.
- Build intuitive frontend applications with React.js and Next.js, delivering outstanding user experiences.
- Collaborate closely with Product Managers and cross-functional teams (Operations, Growth, Brand) to prioritize features and deliver key objectives.
- Own the full lifecycle of features from ideation and design through implementation, deployment, and performance monitoring.
- Write clean, maintainable, thoroughly-tested code to ensure fast deployments and continuous improvement.
- Implement comprehensive end-to-end (E2E) tests to ensure reliability and reduce code review cycles.
- Proactively contribute to strategic decisions about the future direction of our web applications and infrastructure.
- Leverage LLM-based libraries and implement key AI-driven functionalities (RAG, memory, agentic workflows) using stacks like Pinecone and Langchain.
Requirements
- Entrepreneurial mindset with a demonstrated ability to turn ambitious ideas into practical solutions.
- Excellent problem-solving skills, with the ability to quickly evaluate and recommend effective technological solutions.
- Highly collaborative, open-minded, and comfortable working closely with diverse teams.
- Ambitious, performance-oriented, and maintains a positive attitude.
- Fluent in English for clear and effective communication.
Other
- At 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.
- From 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.
- Competitive salary : You can run your own simulation with our salary calculator .
- BSPCE (Stock Options) : Available for everyone, with monthly vesting after year one, over a 4-year period.
- Healthcare plan : Full coverage with Alan for team members, their partners, and children.
- Office in Le Peletier, Paris (9th arrondissement) : With flexible remote work options.
- Swile meal card : €11 per worked day.
- Swile mobility card : €42/month to support sustainable transportation (metro, carpooling, biking…).
- Team events : Monthly Mixers to connect and share good times, and quarterly All Hands to celebrate wins across the company.
- 🏔️ Steep Mountains Are Steep: Setting ambitious goals and working hard to achieve them.
- 🌊 Ride Reality: Actively seeking challenges and thriving by adapting flexibly to changes.
- 🏀 Play for the Front of the Jersey: Prioritizing team success over individual recognition.
- We welcome applications from anyone, regardless of background, gender, sexual orientation, religion, age, or experience. Our team values authenticity and diverse perspectives.
- For all roles, our interview process emphasizes hands-on exercises, case studies, or discussions about specific examples of your previous work. We ensure objectives and expectations are clearly communicated at every step.