Orkun – React, React Native, Node.js

One of the biggest betting sites within New Zealand.

• Utilized Feathers.js and PostgreSQL to optimize the core functions of the website, ensuring speed and scalability for a large user base.
• Developed efficient data handling systems for the website.
• Designed and implemented the front end using Next.js.
• Integrated a real-time chat feature similar to Twitch chat.
• Managed the deployment of the application on AWS.
• Leading a team of 10 devs for developing games within the platform
• Part of games development process with React and Nest.js

One of the fastest growing AI mobile app startups within Turkey

• Managed the technical team
• Interviewed & onboarded new candidates
• Was in charge of end-to-end development of apps: including preparation of AI models, backend, deployment in cloud, dockerization, mobile app development, release of mobile apps, tracking of user activity, basically everything
• Helped with ideation & planning
• Created sustainable production within the company to make sure every onboarded developer will reuse company components instead of duplicating them from scratch
• Created company-wide templates for mobile, backend, AI, Docker etc

It was one of the first fast food brands in Sweden in what was then the "convenience food" segment (now known as fast food). It has received the "Superbrand" award and is one of Sweden's best-known brands.

• Updated an old mobile app to meet current standards;
• Improved user experience and reduced data requests by using React Query for better data caching;
• Updated the design to follow modern mobile design practices;
• Solved persistent Apple Store rejection by ensuring compliance with Apple's guidelines and maintaining professional communication with Apple;
• Fixed issues with the Android build process;
• Replaced the old backend system with a new API;
• Created documentation to guide the client in building the apps independently in the future.

Product is harnessing the power of Earth observation technology to bring comprehensive geospatial data and analytics to your fingertips, simplifying the complex and making the world’s information not just available but also understandable for all.

• Played a pivotal role in both high-level and intricate technical tasks;
• Was responsible for creating complex components in React Native that were vital across multiple screens, demonstrating his expertise in abstracting logic for better maintainability and testability;
• Was instrumental in creating a mobile app for satellite images, requiring a deep understanding of mapping technologies like Google Maps and MapBox;
• Established the release process from the ground up using AppCenter, TestFlight, and Google Play Store, facilitating both pre-release beta testing and live customer deployment. This process ensured a seamless delivery of updates and a streamlined release pipeline;
• Created comprehensive post-mortem reports and delivered instant feedback and bug fixes, ensuring the robustness of the systems;

Along with his main tasks, Orkun also worked on a special project to develop a customer service assistant using AI. This project involved using some of OpenAI's technologies. Even though it wasn't released to the public, it was a great chance for him to learn more about AI and machine learning. He got hands-on experience with AI tools, especially in understanding how AI can help in customer service, which really added to his skills.

One of his notable achievements was creating a feature that was featured as the #1 post on Hackernews. This showcases his ability to not only solve complex challenges but also deliver impactful and innovative solutions.

B2B application for helping customers get technical support from handymen

• Led the development of two main mobile apps;
• Handled the whole process of making these apps, from starting to make them to releasing them;
• Worked on improving and fixing the code and updated the apps using React Native;
• Tested the apps thoroughly and worked closely with the CTO to ensure everything worked well and was easy for users to use.

Web and mobile app for helping customers to receive and deliver stuff easily with cost optimization.

• Led the charge to rewrite an outdated Frontity React app using pure React;
• Boosted the app’s speed and responsiveness by adopting cutting-edge tools like React Query;
• Introduced new features, improved the design, and ensured everything was delivered on schedule;
• Integrated WooCommerce and WordPress and worked with a Node.js backend;
• Integrated Klarna for payment processing.

Yoga for health care mobile app.

Initially handling both backend and mobile, Orkun single-handedly rewrote and released the legacy mobile application using React Native and TypeScript.

• Integrated Firebase authentication, including Google and Apple auth;
• Transitioned to a pure mobile role after the backend developer joined the team;
• Bridged the app with a Django backend, utilized Microsoft AppCenter for streamlined builds and deployments, and worked closely with design teams using Figma to deliver pixel-perfect UI/UX.

A simple mobile app that combines OpenAI's language AI with Dalle's image creation to help users make and visualize creative prompts easily. Great for anyone wanting to quickly turn ideas into images.

• Single-handedly created the entire architecture, both front-end and back-end, ensuring a robust and user-friendly application;
• Designed and implemented a unique integration of OpenAI and Dalle to facilitate seamless, prompt creation and image visualization;
• Developed an intuitive user interface, making it accessible for users with varying levels of technical expertise;
• Engineered a dynamic system for generating and refining text prompts, enhancing the creative process for users;
• Conducted thorough testing, including unit and integration tests, to ensure the reliability and efficiency of the application;
• Maintained and updated the application regularly, responding to user feedback and evolving requirements.

The product's mission is to utilize the latest technologies to modernize the battery service industry. Their hardware was designed and built to streamline installations, reducing system setup and maintenance costs. Their software was developed so that Users could spend less time analyzing data and compiling compliance reports. Orkun was responsible for creating their battery-testing app from scratch.

• Created a scalable and easy-to-maintain app that met all client requirements;
• Integrated APIs and Bluetooth functionality;
• Utilized his knowledge of SQLite to ensure the app was functional and efficient.

It is one of Europe's leading solar companies, with local offices in Sweden, Spain, Germany, Belgium, and the Netherlands with 20,000+ customers. The mobile app is for customers who own Svea Solar products (solar panels, inverters, etc.)

The app is helpful to:

• Understand how much electricity is consumed in a particular house;
• Understand how the changes affect both the environment and the customer's wallet;
• Get more out of solar cells. See when to produce the most and make better decisions.

• Updated react-navigation from 4th to 5th version;
• Refactored navigation stack;
• Implemented feature flags;
• Implemented support case creation screens and flow;
• Implemented new analysis screens and graphs;
• Added storybook documentation implementation;
• Added units and UI tests for better QA.

The project is for technicians who work with machines daily. The application collects diagnostic data from problems that occurred before and implement an AI algorithm to make suggestions on similar problems, leading to better efficiency and quick solutions. Basically, it's an automated stack overflow for machines.

• Developed a full-stack project from scratch including system design, database design, Front-End, Back-End, and mobile application in both iOS and Android;
• Implemented using AWS Lambda, DynamoDB, ElasticSearch, React, React Native, Javascript, Typescript, Node.js, Express.js.