Vladyslav – Kotlin, Java, Coroutines

An all-in-one super app operating in the Middle East, simplifying daily tasks such as transportation, food and grocery delivery, and payment management. It stands as the most successful tech startup in the MENAP region (Middle East, North Africa, and Pakistan).

• Led end-to-end development of an internal startup project, overseeing phases from ideation to release, enhancing product engagement and overall impact;
• Executed and launched a sub-project across multiple regions, optimizing localization and compliance, expanding user reach, and increasing market penetration.
• Improved flexibility in the flagship project by implementing server-driven UI, reducing development time for future features, and enabling dynamic content updates.
• Mentored junior developers by establishing coding standards and best practices, resulting in elevated code quality and consistent project performance.

Android applications designed for the restaurant industry, covering a range of features, such as loyalty programs, payments, and delivery services, aimed at enhancing customer experience and business operations.

• Led a team of 3 Android engineers in developing Android apps for restaurant services, including loyalty programs, payments, and delivery;
• Coordinated with cross-functional teams (product, backend, design) to ensure cohesive and efficient project delivery;
• Enhanced the Android framework used across 10+ applications, contributing to its support and continued development;
• Developed a Kotlin Multiplatform framework, enabling shared code and reducing development overhead for cross-platform solutions;
• Built multiple SDKs for backend integrations, widely adopted by other teams to standardize app-to-service communications;
• Migrated architecture and dependencies, including a shift from RxJava1/2 to Kotlin Coroutines, Dagger2 to Hilt, and from a multi-activity to a single-activity model, improving app maintainability and performance.

A British global fashion retailer loved by customers for over 50 years and committed to sustainability, with 50% of its clothing line featuring eco-friendly attributes. In 2023, the company recorded an impressive 225 million visits to its website and mobile app.

• Redesigned and optimized app architecture using Jetpack Compose and the MVI architecture, enhancing performance and maintainability;
• Implemented multi-modular architecture, reducing build times and facilitating better scalability for future enhancements;
• Migrated dependency management from Dagger2 to Hilt, streamlining app performance and improving development efficiency;
• Developed and executed UI/instrumentation tests to ensure functionality, increasing test coverage and app reliability.

Android applications designed to control Bluetooth audio devices, such as speakers and headphones, enabling users to adjust settings, and customize audio preferences directly from their smartphones.

• Developed and integrated custom SDKs for popular music services (e.g., Deezer, Spotify, Amazon, TuneIn), expanding app functionality for Bluetooth devices;
• Led a complete refactoring and migration from MVP to MVVM architecture, improving codebase scalability;
• Built a Bluetooth/BLE SDK, used across multiple device projects, streamlining Bluetooth interactions and enhancing device compatibility;
• Implemented integration tests to handle complex Bluetooth interactions, reducing testing time and increasing stability.

A comprehensive CRM system developed to streamline company operations for a leading German manufacturer of professional building paints, later expanding its capabilities to support 5 international branches within the company group.

• Developed a comprehensive CRM system;
• Built and launched a client Android app for the CRM system, enabling seamless mobile access for users;
• Led a team of 2 developers, overseeing project milestones and ensuring quality deliverables;
• Integrated multiple third-party systems (ERP, electronic document management, Telegram bots), enhancing platform functionality and interconnectivity.