Ryan Kheradmand Email & Phone Number

Tehran Province, Iran

Tehran Province, Iran

Key responsibilities include:- Developing new fintech features and designing RESTful APIs with Spring boot.- Writing unit and integration tests using tools like JUnit and Testcontainers for MongoDB, RabbitMQ, WireMock, Feign Client, and other Dockerized dependencies.- Leveraging Java multithreading and asynchronous features to improve system performance.- Working with NoSQL databases such as MongoDB and Redis for scalable data solutions.- Utilizing RabbitMQ for asynchronous… Show more Key responsibilities include:- Developing new fintech features and designing RESTful APIs with Spring boot.- Writing unit and integration tests using tools like JUnit and Testcontainers for MongoDB, RabbitMQ, WireMock, Feign Client, and other Dockerized dependencies.- Leveraging Java multithreading and asynchronous features to improve system performance.- Working with NoSQL databases such as MongoDB and Redis for scalable data solutions.- Utilizing RabbitMQ for asynchronous message brokering and communication between services.- Implementing and maintaining a microservices architecture with 7+ services for the SuperApp Line.- Applying microservices design patterns, including API Gateway, Database per Service, Aggregator, Asynchronous Messaging, and ensuring low coupling and high cohesion.- Committing to clean code principles to create maintainable and scalable solutions. Show less

Tehran Province, Iran

At Digipay, I contribute to the development and improvement of our super app, ensuring a seamless and efficient user experience. My key responsibilities include:- Refactoring legacy code, migrating from RxJava to Kotlin Flow and Coroutines, and adopting modern architectures like MVI and MVVM.- Developing new features and resolving numerous bugs, including critical issues like logout errors caused by Retrofit interceptor chains, UI inconsistencies, and compatibility challenges with… Show more At Digipay, I contribute to the development and improvement of our super app, ensuring a seamless and efficient user experience. My key responsibilities include:- Refactoring legacy code, migrating from RxJava to Kotlin Flow and Coroutines, and adopting modern architectures like MVI and MVVM.- Developing new features and resolving numerous bugs, including critical issues like logout errors caused by Retrofit interceptor chains, UI inconsistencies, and compatibility challenges with Android 11+.- Fixing memory leaks and enhancing app performance to deliver a reliable and optimized product.Additionally, I lead the development of a new hybrid version of the Digipay app combining native Android components with web technologies, built with:- Clean Architecture and MVVM for maintainability and scalability.- Seamless interaction between native Android components and WebView using JavaScript interfaces, addressing WebView’s limitations and ensuring a unified user experience.- Resolving architectural issues in the previous app version to create a more robust and future-proof solution. Show less

Tehran Province, Iran

At FANAP TECH, I worked on developing and maintaining a variety of customized applications for payment devices such as POS, Cashless machines, and Cash Deposit Machines (CDMs). This role provided me with valuable hands-on experience integrating hardware modules like NFC and HSM, enabling seamless interactions between applications and hardware components.My key responsibilities included:- Collaborating with hardware teams to ensure proper integration of Printer, PinPad and other… Show more At FANAP TECH, I worked on developing and maintaining a variety of customized applications for payment devices such as POS, Cashless machines, and Cash Deposit Machines (CDMs). This role provided me with valuable hands-on experience integrating hardware modules like NFC and HSM, enabling seamless interactions between applications and hardware components.My key responsibilities included:- Collaborating with hardware teams to ensure proper integration of Printer, PinPad and other modules.- Writing unit tests to validate hardware modules functionality and monitor hardware health.- Utilizing design patterns, SOLID principles, and abstraction to create a single codebase that seamlessly operates across multiple devices without modifications.- Diagnosing and resolving memory leaks and view hierarchy issues to optimize app performance.- Utilizing modern Android libraries and frameworks, such as MVI architecture, Hilt, LeakCanary, Coroutines, Flow and the Navigation Component.This role offered an incredible opportunity to merge software and hardware expertise, enhancing my skills in creating reliable, high-performance solutions for the banking and payment industry. Show less

Khorramabad, Lorestan Province, Iran

As a Co-Founder and the sole Android Developer at Kahroba, I had the unique opportunity to thrive in a startup environment, building and managing Android projects independently. This experience shaped my ability to work autonomously, solve complex challenges, and deliver high-quality software under tight deadlines.Key accomplishments include:- Designing, developing, debugging, and supporting multiple Android projects, taking full ownership from start to finish.- Implementing… Show more As a Co-Founder and the sole Android Developer at Kahroba, I had the unique opportunity to thrive in a startup environment, building and managing Android projects independently. This experience shaped my ability to work autonomously, solve complex challenges, and deliver high-quality software under tight deadlines.Key accomplishments include:- Designing, developing, debugging, and supporting multiple Android projects, taking full ownership from start to finish.- Implementing robust and scalable solutions using modern technologies such as MVVM architecture, gRPC, Dagger2, Hilt, RxJava, EventBus, ExoPlayer, and Firebase.- Building a strong foundation in self-reliance and problem-solving by managing all aspects of Android development without external support.This role allowed me to combine technical expertise with entrepreneurial skills, contributing to the growth of our startup while strengthening my ability to adapt and innovate. Show less

Khorramabad, Lorestan Province, Iran

At Q Company, a leading Last-Mile Delivery SaaS platform, I was responsible for the development and maintenance of online taxi applications, ensuring seamless operations and enhanced user experience. My role included managing the full development lifecycle of more than 5 applications, while continuously improving and optimizing their performance.Key responsibilities and accomplishments include:- Developing and maintaining multiple applications, ensuring smooth and efficient… Show more At Q Company, a leading Last-Mile Delivery SaaS platform, I was responsible for the development and maintenance of online taxi applications, ensuring seamless operations and enhanced user experience. My role included managing the full development lifecycle of more than 5 applications, while continuously improving and optimizing their performance.Key responsibilities and accomplishments include:- Developing and maintaining multiple applications, ensuring smooth and efficient operation for both users and delivery companies.- Integrating Google Maps APIs to provide real-time location tracking and routing.- Leveraging technologies such as MVP architecture, Dagger2, Java, Socket.IO, RxJava, EventBus and Firebase to build scalable and high-performance applications.- Implementing application flavors for different use cases and regions to enhance app customization.This role allowed me to refine my skills in mobile development while working in a fast-paced environment to support the scaling and automation of delivery services. Show less