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CC.Talent is seeking an experienced Senior Fullstack Engineer to support a confidential client in building and scaling high-performance backend systems and personalized user experiences. This role focuses on developing scalable APIs, backend architecture, and data-driven features that support a rapidly growing social platform with over one million users across multiple countries. The ideal candidate has strong experience in Node.js, TypeScript, GraphQL, and scalable system design, and thrives in fast-paced, product-driven environments.
About the Client
Our client is a fast-growing social application designed to bring people together through real-life connections. With more than 1,000,000 users across seven countries, the platform promotes meaningful interactions with the mission: Less scrolling, more living. The company operates with a compact, highly driven team focused on building a fast, intuitive, and high-performing application comparable to platforms such as Bol.com, Uber, and Booking. Performance, personalization, and user experience are at the core of everything they build.
Responsibilities
Develop and maintain a scalable, high-performance backend using Node.js, TypeScript, GraphQL, and MySQL
Design and implement systems for personalized content such as feeds, recommendations, and timelines
Build and optimize scalable APIs to support growing user demand
Collaborate closely with frontend, design, and data teams to deliver features end-to-end
Improve system architecture, caching strategies, and data integrations
Contribute to technical decisions around scalability, performance, and the future growth of the platform
Ensure backend systems are reliable, maintainable, and optimized for production environments
Requirements
At least 3 years of experience with Node.js and TypeScript
Strong knowledge of GraphQL and MySQL, with experience building scalable APIs
Understanding of systems such as recommendation engines, feeds, or timeline platforms
Experience with NoSQL databases, caching layers, or event-driven architectures
Experience with app localization for multi-region or multi-language platforms
Familiarity with over-the-air (OTA) app updates
Experience building recommendation engines, preferably using AWS Bedrock
Hands-on experience with Prisma or Drizzle (ORM)
Strong analytical and problem-solving skills with a scalable mindset
Familiarity with both relational and non-relational databases
Curious and proactive in learning new technologies and tools
Nice to have: experience with CI/CD, monitoring, or production environments
Nice to have: experience working on applications with rapid and large-scale user growth (e.g., Booking, Marktplaats, AH
