Developed and maintained two systems for trading bots of cryptocurrency for an Austrian company.For a Swedish company, developed a booking system from scratch that consist of database, microservice backend, RabbitMQ and Angular frontend.Worked as CTO for a German company.Developed some modules of a survey project for a Danish company.

Designed, developed, and implemented the subscription management software for the company, which created invoices for indexes read from devices.Led a team of developers in developing and maintaining software products and applications.Participated in the entire software development life cycle from requirements gathering, design, development, testing, and deployment.Worked with the team to identify and resolve any technical issues and ensured the timely delivery of software solutions.Conducted code reviews and ensured compliance with coding standards.Trained and mentored junior developers on software development best practices and emerging technologies.

Started my second start-up that is an accounting, sales and order system. System can be used both for individual and commercial purposes. Users can create and send invoices each other. So shop owners can make retail sales and recieve orders while end users order products or foods.

Developed web app 'Isetia', which is currently used by many companies (like Oman Gas, Dubai Metro) worldwide.Led the development team and managed project timelines and tasks Participating in the design and architecture of the Isetia web appDeveloping and implementing new features and functionalities for the app using various technologies.Testing and debugging code to ensure high-quality software delivery.Collaborating with clients to gather requirements and provide progress updates.Providing technical expertise and support to clients as needed.Maintaining and improving the performance of the Isetia web app over time.

Developed and maintained desktop applications and services that communicated with various devices via TCP sockets, RS-232, and USB, such as fingerprint readers, banknote readers, coin acceptors, Mifare readers, and credit card embossing machines.Developed ASP.NET web applications that enabled online payment and worked with many Turkish banks for virtual POS.Designed, developed, and deployed web-based applications that use various technologies, including AngularJS, ReactJS, Node.js, and ASP.NET.Worked closely with product managers and clients to understand their requirements and provided technical solutions accordingly.Mentored junior developers and conducted code reviews to ensure code quality and consistency.

Developed a pharmacy desktop app to solve the needs of a pharmacy shop, including accounting and retail modules.Analyzing user requirements and designing software solutions to meet those requirements Developing software applications using programming languages and frameworks such as .NET, C#, and SQL.Collaborating with team members to ensure software projects are completed on time and within budget.Conducting code reviews to ensure code quality and adherence to coding standards.Testing and debugging software applications to identify and resolve issues.Providing technical support and assistance to end-users to resolve software-related issues.Creating and maintaining software documentation to ensure clear communication of software features and functionality.

Founded Mavi Elmas Software at Erciyes University Technopark as a software development company that provides desktop applications for retail shops and automotive services.Developed a desktop application for retail shops, including inventory management, sales management, and accounting modules.Developed a desktop application for automotive services, including service management, customer management, and inventory management modules.Responsible for managing business operations and collaborating with clients to gather requirements and deliver high-quality software solutions.

Developed software communicating with devices via TCP socket, rs-232, and USB port.Developed desktop applications that communicate with various devices using different communication protocols.Worked on software projects for multiple clients.Collaborated with other developers to design and develop software solutions.Debugged and fixed issues in existing software applications.Participated in code reviews to ensure the quality of the codebase.