Senior Fullstack Engineer

Join Ninetailed by Contentful as a Senior Fullstack Engineer and shape the future of how digital personalized user experiences are being built at scale. You'll play a key role in developing SDKs and tools that empower developers to seamlessly integrate our platform. Your work will directly impact the developer experience for major companies around the world.

As a Senior Fullstack Engineer, you will:

• Develop and maintain high-performing SDKs and tools that developers love to use
• Own the strategic future of the Ninetailed SDKs and its architecture
• Collaborate with API teams to implement efficient protocols for event exchange and dynamic experience rendering
• Ensure stability & reliability through comprehensive unit and e2e testing
• Create strong documentation to enhance user experience
• Manage public package releases using semantic versioning
• Optimize performance by reducing bundle sizes and improving load times
• Work on different SDK flavors for mobile platforms

To succeed in this role, you should have:

• Proven experience building developer-facing tools, libraries, or open-source projects
• Strong TypeScript skills, including deep understanding of its type system
• Proficiency in React and higher-level frameworks (e.g., Next.js, Remix, Astro)
• Experience with modern bundlers like Rollup and Vite
• Solid background in automated testing (Jest & Playwright)
• Experience with Web APIs and browser compatibility
• Skills in optimizing bundle size and load time
• Familiarity with semantic versioning and monorepos (nx.dev is a plus)
• Knowledge of mobile development (e.g., React Native) is beneficial
• Strong collaborative mindset and excellent communication skills in English

Contentful offers a range of benefits, including:

• Stock options for full-time employees
• Fertility and family-building benefits
• Generous paid time off, including vacation, compassion, education, and volunteer days
• Personal annual education budget
• Virtual and in-person events for learning and networking
• Annual wellbeing stipend
• Monthly communication stipend and phone hardware upgrade reimbursement
• New hire office equipment stipend for hybrid or distributed employees

Contentful is an intelligent composable content platform that powers innovative content experiences for organizations worldwide, including nearly 30% of the Fortune 500. With a team of nearly 800 people from over 70 nations, Contentful values diversity and inclusion, welcoming applications from all qualified candidates regardless of background.