Founding, Full Stack Engineer (React.js & Python)

bFull Stack Engineer (React.js, TypeScript, Python) /b – YC AI Scale-up – Amsterdam, NLbrZorg ervoor dat u het onderstaande overzicht en de vereisten voor deze vacature volledig leest.brpbExperience: /b 3+ years – React.js, TypeScript, PythonbrbEmployment type: /b Full‑Time /pbrJob OverviewbrpOur client develops AI sales employees for Europe. Their first product is an AI SDR that owns the entire outbound process – from researching relevant companies to executing campaigns on email, LinkedIn, and via letters. We are seeking a highly skilled and proactive founding software engineer to join our YC‑backed startup full‑time and in person in Amsterdam. This is a fantastic opportunity to make a substantial impact in a fast‑paced, early‑stage startup environment. /pbrResponsibilitiesbrullibr/liliOwn and develop core product features on both the frontend and backend.br/liliCollaborate with founders and customers to conceptualise, design and implement new features.br/liliMaintain and improve the codebase for optimal performance.br/liliConduct code reviews and perform debugging tasks.br/li /ulbrRequired Qualificationsbrullibr/liliProven track record in full‑stack development, preferably as a Senior Software Engineer.br/liliComprehensive knowledge of TypeScript, React, and server‑side development (preferably Remix).br/liliProficiency in designing multi‑tenancy SaaS products.br/liliExperience leveraging latest AI code IDEs (Cursor, Windsurf, Claude, IntelliJ, Junie).br/liliExperience operating software in a scalable manner.br/liliFluent in English; able to communicate complex technical concepts clearly and effectively.br/li /ulbrBonus Skills and Experiencebrullibr/liliProficiency in Python.br/liliExperience hosting applications on Azure.br/li /ulbrApplicationbrpSubmit a copy of your CV directly to this advertisement or email . This role is actively interviewing and can be offered within 7‑10 days. xgiwjmb /pbrLocationbrpAmsterdam, North Holland, Netherlands – On‑site role. /pbr