I have over 22 years of experience in software development, specializing in custom software development and software architecture within IT systems. I have been delivering tailored solutions, optimizing performance and scalability for clients.During my career, I have successfully developed various types of applications, including Customer Relationship Management (CRM), Content Management System (CMS), Human Resources (HR) business applications, Operations Support Systems (OSS), and Network Management Systems (NMS).As a software architect, I am responsible for designing and creating the software architecture for these types of applications, ensuring that they meet the specific needs and requirements of the clients. I possess expertise in making project plans, extracting tasks for backlogs, and providing accurate effort estimations.I possess an extensive knowledge of various programming and scripting languages, including Java, JEE, PHP, JavaScript, JQuery, C++, as well as a deep understanding of different technologies and design patterns which helps me to implement the architectural designs effectively.Furthermore, I have extensive knowledge of database designing, developing advanced and efficient SQL queries, T-SQL stored procedures, and strong experience with Oracle PL/SQL, IBM DB2, Versant, Firebird, MySQL, PostreSQL, and other databases.My experience in both software development and software architecture enables me to not only contribute to the coding aspects of the projects but also provide valuable insights and solutions at a higher level. My knowledge of creating test strategies and creating test scenarios helps in creating safe and failure-free solutions. I am dedicated to delivering high-quality custom software solutions that align with the client's specific requirements while ensuring optimal performance, scalability, and security.I am the founder of SoftwareProjekt, a company with extensive experience in creating a wide range of software solutions for businesses in aspects described above. Since our establishment in 2005, we have successfully delivered software to various clients, including the office of the President of Poland, hospitals, fire brigades, petrochemical companies, service and production companies, and government offices. Our software solutions have garnered recognition in both IT and industry magazines.