Mikhail L.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

My qualification in web application development starts in 2002 1. I develop server-side applications using PHP and Go. I have experience in developing and maintaining high-traffic web applications that handle large volumes of data and ensure high availability. 2. I create microservices using PHP and Go. I have experience in creating microservices based on PHP and Go, using frameworks such as Yii1/Yii2, Laravel. I am familiar with microservices architecture and can design, develop, and deploy microservices. 3. I develop APIs and integrate with various services using PHP and Go. I am familiar with RESTful and SOAP APIs, as well as OAuth authentication integration and handling JSON and XML data. I have experience working with APIs for a variety of services such as Facebook, Twitter, Google, Slack, eBay, and more. 4. Databases. I have experience working with relational and NoSQL databases such as MySQL, Redis, and others. I can design databases, optimize queries, and use ORM. 5. Working with message queues and asynchronous programming in PHP and Go. I have experience working with message queues such as RabbitMQ, Redis, as well as with asynchronous programming using Goroutines. 6. Performance optimization and scalability. I know how to optimize database queries, work with caching. 7. Deployment and configuration of web servers. I have experience working with Apache and Nginx web servers and know how to configure them for high performance and security. 8. Security. I know how to ensure the security of web applications, including protection against XSS and SQL injections, as well as configuring SSL certificates and using the HTTPS protocol. 9. Teamwork and project management. I have experience working in a team and know how to use version control systems such as Git. I can manage projects using tools such as Jira and Trello. 10. Go programming language. I have experience working with the Go programming language. I am familiar with the language's core principles, such as concurrency and parallelism, and can develop high-performance web applications using Go. 11. Communication with clients. I have experience communicating with clients and understand the importance of meeting their needs and requirements during the web application development process. 12. Website automation. I have skills in automating websites using Selenium and Chromium tools. These tools allow me to create scripts that can simulate user actions on the website, such as filling out forms, clicking buttons, downloading reports, and uploading files. Such scripts can significantly simplify and speed up manual work, testing, and debugging of web applications. 13. Results-driven. It is important for me to achieve results in the projects I am involved in. I strive to do everything possible to achieve project goals within the established deadlines and with high quality. 14. Analytical skills. I have experience in analyzing project requirements and designing application architectures. I am able to assess the complexity of a task and choose the most effective solution. Overall, my expertise in web application development using PHP and Go, creating microservices, integrating with various services, working with databases, security and performance optimization, as well as other skills, allows me to solve complex tasks in the field of web development and achieve high results.