Ozcan T.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.

I graduated from Control & Computer Engineering Department of Istanbul Technical University (ITU) in 1996. I've been building robust backend systems and web services (both SOAP and REST) for web/mobile/desktop applications for over 20 years. During this period I took part in SW development teams of many well-known multinational companies such as Hyundai Motors and Northern Telecom, and worked in various sectors, extending from automotive and telecom to travel, retail, gaming, and e-commerce. My areas of expertise: • Certified Java Developer, Certified Java Web Component Developer (Sun Microsystems) • System Analysis, DB Design, and DB Administration (Oracle, MS-SQL, MySQL, PostgreSQL, DB2, MongoDB, DynamoDB, etc) • Middleware and Web Application Server Management (IBM WebSphere, JBoss) • Node.js, Express, Socket.io • REST/SOAP Web Services • Microservices • C# .NET (MS Visual Studio, TFS, WCF, MVC, Entity Framework, WinForms / WPF, ) • Web Server Configuration & Management (Nginx, Apache, IIS, Tomcat, etc) • Linux System Administration (Ubuntu, RedHat, Debian) • CISCO Switches/Routers Administration • Firewall Administration (Juniper, Sophos) • IBM Storage Management • IBM AS/400 (i5/OS iSeries) • Radware Load Balancer Management • SSL Certificate Management • Linux shell scripting / cron jobs • Oracle Pro C, PL/SQL • Java Spring Framework, J2EE • Java Multithreaded Programming • Design Patterns (GoF & Sun) • Unit testing with JUnit, TestNG, Mockito, Mocha, Jasmine, Chai • Integration testing with Supertest/Superagent • Maven and Gradle build managers • Static code analysis (FindBugs) • Continuous Integration (Jenkins) • Agile development methodology (Scrum, Kanban, XP) • Source code control systems (Git, Github, SVN, CVS) • Containerization (Docker) • Data/privacy protection (Microsoft DPAPI, Java Cryptography, Bouncy Castle Crypto API) • ITIL & PLM practices • Ruby • PHP • MS Excel VBA Programming • CTI (Computer Telephony Integration) Programming • Network Monitoring (MRTG, Nagios, SNMP protocol, SSH) • Application Performance Monitoring • Eclipse, Netbeans, IntelliJ, Visual Studio Code, IBM RAD, WSAD IDE • ERP/MRP Systems • Continuous SEO improvements • Google Adwords, Analytics management & reports