Backend API Engineer

We are looking for a Backend API Engineer to help build and scale secure, reliable APIs, for our client in the banking sector. You’ll join a modern engineering environment where you can take real ownership of your work. The focus is on API development, security, scalability and quality rather than complex domain knowledge. Your job Build and improve secure REST APIs and backend services.Design APIs with scalability, reliability, and developer experience in mind.Work with TypeScript, Node.js, AWS, relational databases, and asynchronous systems.Contribute to testing, CI/CD, observability, and infrastructure-as-code.Help strengthen the platform through security improvements, performance testing, and resilience.Take ownership of features from design through delivery.Make effective use of AI-assisted development tools while maintaining high engineering standards. Your profile Experienced Backend Engineer with strong TypeScript/Node.js skills.Solid understanding of API design, security, testing, and cloud-native development.Hands-on AWS experience is mandatory.Comfortable working independently and taking ownership of technical delivery.Pragmatic, quality-focused, and able to make sound engineering decisions.Strong communicator who is comfortable working from technical specifications and documenting decisions. We Offer Hybrid working environment25 vacation daysA high-impact role in a diverse, international environmentSalary up to €80.000 gross per year based on 36 hours Our Client Our client is a leading financial institution in the Netherlands, focused on innovation, scalability, and modern cloud-based platforms. Their engineering teams work on critical systems that support large-scale digital services and real-time event-driven processing. They offer a strong engineering culture with a focus on automation, platform thinking, and continuous improvement. Interested? Are you the Backend API Engineer we are looking for? Let’s connect! Oksana Tafani: +31682096224