If you're looking for a reliable, scalable, and high-performance back-end solution for your web application, then my "Node.js back-end service" is just what you need. As a skilled developer with many years of experience under my belt, I bring my knowledge and expertise to the table to help you create the perfect custom solution.

My deep understanding of Node.js frameworks (such as Express.js and Nest.js) and how they work with databases such as MongoDB, MySQL, and PostgreSQL, allows me to design optimized, and maintainable server architecture that fits your specific needs.

With my focus on clean, modular, and maintainable code, I ensure that your back-end solution is easy to manage and update as your business expands. Whether you are creating a new application or upgrading an existing one, I am committed to delivering high-quality, results-driven solutions that meet your exact requirements.

So, if you have a vision, let's make it a reality - contact me today and watch as your ideas come to life! 

Below are some of the services that I can offer:

• Backend development: I am able to assist you in constructing the backend of your web application through the utilization of Node.js, Express.js, and Nest.js. This process encompasses outlining server-side logic, managing data storage and retrieval, as well as implementing security measures. 
• API development and integration: I am capable of aiding you in both the creation and integration of APIs using Node.js and Express.js. These APIs can be utilized to bolster the functionality of your current applications or to construct entirely new applications from the ground up. 
• Performance optimization: I can assist you in optimizing the performance of your Node.js applications, resulting in faster and more efficient operation. This includes identifying bottlenecks, implementing caching mechanisms, and optimizing database queries.