• Helped raising 2M$ seed funding as one of the initial members of the team. • Developing a cloud-based payment gateway which allows single point management and operation of various virtual POS, e-money institution solutions and other payment systems.• Working on both core payment platform features and surrounding services such as messaging, administration pages, dev tooling and many more.

• Developed and deployed solutions with self-managed team of crafters expert on Fintech & Foodtech domains. Modeled APIs using hexagonal microservice architecture, used Java 11 with Spring 5, PostgreSQL, Kubernetes and many more. • Created, architectured and scaled Trendyol Go from zero to 250k+ deliveries a day as one of the lead developers. Especially personally responsible for delivery management, assignment and tracking flows.• Collaborated on development of white label payment system, focused on reporting and management aspects.

• Developed features to improve our 3 business verticals: Ride sharing, Food delivery and Package delivery• Feature planning, architectural design and development for new verticals

• Worked principally as a Java Backend Developer to develop and design the Connected Car cloud platform, which runs on a high-performance scalable microservices architecture powered by Spring Cloud and Netflix OSS primarily.• Supported and lead collaborating teams to use our up to date API to develop Connected Car mobile and web applications; e.g. Fiat Yol Arkadaşım Connect, Turkcell Kopilot, Turkcell Kopilot Filom, Renault Motrio Connect and more.• Acted as the project development lead for some of our client projects.• Co-designed software architecture for new features.• Frontend development with Angular&React for administrative and management pages.

• Reworked and optimized a geocoder service written primarily in PostgreSQL (PL/pgSQL), achieving larger dataset incorporation with much quicker response time and higher success rate.• Created web user interfaces (PHP, Python, Spring MVC, ASP.NET, Javascript) for several projects.• Continued development for SenseAway project, providing new features and maintenance.

• Worked as a Software Engineer for a TÜBİTAK (The Scientific and Technological Research Council of Turkey) project (1003: Primary Subjects R&D Funding Program). Collaborated with researchers and interface designers to develop an Android application aiming educational support for 1st grade elementary school students.• Acted as Teaching assistant for "CS201: Introduction to Programming", "CS204: Advanced Programming" and "CS580: Wearable Computing" courses. Responsibilities included creating/grading homeworks, teaching at recitations and guiding students on C++ and Android related material.

• Developed multiple web based management systems (Spring MVC, JavaScript, JQuery, Bootstrap) as a solitary full stack developer. • Continued development for SenseAway project, providing new features and maintenance.• Developed supplementary native Android applications for aforementioned management systems.

• Main developer for SenseAway: A wireless sensor network based rural area security and surveillance system. Responsible for both application layer over the proprietary Embedded C based operating system for sensor nodes and the Java (Spring, Hibernate, JUnit) based control interface on computers.• Delivered add-ons and updates for other similar projects.• Developed OTA Remote Reprogramming module.• Led technical support teams for in-operation system maintenance.

• Wrote game reviews and generated additional content for Oyungezer Magazine, primarily for video games available on Nintendo based systems.• Created news articles for Oyungezer Website.