Full Stack Engineer (React.js & Python)

Full Stack Engineer (React.js, TypeScript, Python) - YC AI Scale-up - Amsterdam, NL Salary: €70,000 - €110,000 + Bonus + 0.7-1% Equity Experience: 3+ years - React.js, Typescript, PythonFull-TimeAI & SaaSOur client: Our client develops AI sales employees for Europe. Their first product is an AI SDR that ownsthe entire outbound process from researching relevant companies to executing campaignson email, LinkedIn and via lettersWe're seeking a highly skilled and proactive Founding Software Engineer to join our YC-backed startup full-time and in person. This is a fantastic opportunity for someone eager to make a substantial impact in a fast-paced, early-stage startup environment. You are expected to thrive in a demanding and fast-moving environment. We are hiring for an on-site role in Amsterdam, The Netherlands.Responsibilities:Own and develop core product features on both the frontend and backend of ourproductCollaborate with the founders and our customers to conceptualise, design and implement new featuresMaintain and improve our codebase for optimal performanceConduct code reviews and perform debugging tasksRequired Qualifications:Proven track record with significant experience in full-stack developer roles,preferably as a Senior Software EngineerComprehensive knowledge of Typescript, React and server-side development(preferably Remix)Proficiency in designing multi-tenancy SaaS productsMust have experience with leveraging latest AI Code IDEs (Cursor, Windsurf,Claude, IntelliJ, Junie)Experienced in operating software in a scalable mannerFluent in English, able to communicate complex technical concepts clearly and effectivelyBonus Skills and Experience:Proficiency in PythonExperience with hosting applications on AzureIf this role sounds of interest and keen to explore further please submit a copy of your CV directly to the advertisement or email david@wearesyntera.com This role is actively interviewing and can be offered within 7-10 days.