Senior Fullstack Engineer

Brief

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

Qualifications

• 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