Back End Developer

As a Backend Developer specializing in QR code generation and management systems, you will be responsible for developing and maintaining backend services to facilitate the creation, customization, and distribution of QR codes. Your primary focus will be on designing APIs, implementing scalable services, and ensuring high performance and reliability in QR code generation systems. Additionally, you will collaborate with the frontend team to integrate these services into real-time web and mobile applications. Your key responsibilities will include developing and maintaining backend services for QR code generation using libraries like qr-code-styling, designing APIs for customizing QR code styles, implementing authentication mechanisms for securing access to services, utilizing MongoDB for data management, and working with AWS services for deployment and scaling of infrastructure. You will also be expected to write unit and integration tests to ensure the robustness and scalability of new features. To excel in this role, you should have 1-3 years of experience in backend development using Node.js and Express.js, proficiency in QR code generation libraries, experience with MongoDB and AWS services, knowledge of authentication techniques like JWT and OAuth2, and the ability to build and integrate RESTful APIs. Strong problem-solving skills, the ability to work independently in a fast-paced environment, and familiarity with WebSockets for real-time data push are also desirable qualities. While not mandatory, experience with Docker and Kubernetes for containerization, frontend frameworks like React or Vue.js, and knowledge of frontend-backend integration will be considered advantageous. In return, you can expect a competitive salary and benefits package, along with the opportunity to work with cutting-edge technologies in a dynamic and forward-thinking company. If you believe you possess the required skills and experience for this role and are eager to contribute to the development of innovative QR code solutions, we invite you to apply by sending your resume and a brief cover letter to [email address]. We are looking forward to receiving your application and potentially welcoming you to our team for an immediate joining. To apply for this position, please send your resume and portfolio to hr@zmqrcode.com. We are excited to hear from qualified candidates who are ready to take on this challenging and rewarding opportunity.,