Software Engineer

Zefir Fr — France · Posted ~6 days ago

Full-time

Skills

Software engineering LLM-based development workflows scalable software development end-to-end ownership LLM AI software engineering

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Summary ✨ AI‑Generated

Join a fast-growing engineering team building scalable digital solutions in a rapidly evolving technology environment. Engineers own their work from ideation through launch, solve meaningful customer problems, and use AI-assisted development workflows to automate repetitive tasks while maintaining a lean and high-performing codebase.

Highlights

High ownership, meaningful customer-focused engineering work, modern AI-assisted development workflows, rapid team growth, and emphasis on scalable, lean software.

Description

Who We Are Zefir is Europe's fastest-growing AI Real Estate Marketplace. We're transforming how homes are bought and sold, enabling transactions twice as fast as traditional methods. In just 2 years, we've achieved over €1 billion in Gross Merchandise Volume (GMV). Backed by over €50 million from top-tier investors like Sequoia Capital, we're committed to accelerating life changes for millions of current and future European homeowners. E ngineering TeamA t 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.F rom 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.R e sponsibilities/MissionDe velop 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.Qua lificationEnt repreneurial 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.Bene fitsComp etitive 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: €45/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.Our O perating Principles🏔️ S teep Mountains Are Steep: Setting ambitious goals and working hard to achieve them.🌊 Ri de Reality: Actively seeking challenges and thriving by adapting flexibly to changes.🏀 Pl ay for the Front of the Jersey: Prioritizing team success over individual recognition.