Dolphin Cloud is a cloud-native evolution of the original Dolphin project, purpose-built to automate the creation and management of Facebook and TikTok ad campaigns. Leveraging API integrations with cookies and account tokens, the platform seamlessly synchronized key advertising entities across both networks. Architected with an emphasis on asynchronous operations, it delivered industry-leading performance and scalability. The platform also supported multi-user collaboration with advanced role- and permission based access control. Key Contributions: ● Engineered integrations with Facebook and TikTok APIs to onboard and manage ad accounts. ● Implemented secure cookie- and token-based authentication to retrieve ad account data and campaign assets. ● Developed resilient API and browser emulation layers for consistent cross-platform operation. ● Led the evolution of the codebase from a single-developer project to a scalable, team-led platform. Challenges Overcomed: ● Optimized handling of large-scale datasets and real-time statistics via denormalization, indexing, and database tuning. ● Navigated frequent changes in Facebook’s API and browser request patterns by building adaptive, self-healing request logic. ● Developed strategies to handle short-lived authentication tokens dynamically. Key Achievements: ● Delivered bulk action capabilities that reduced task execution times by 90% compared to native tools. ● Ensured high-speed, reliable data synchronization across both advertising platforms. ● Promoted from individual contributor to Development Team Lead, setting the technical vision and guiding team execution. ● Contributed to a product that generated significant revenue, stood out for performance and reliability, and received strong user feedback.

Built a high-performance online casino platform using a microservices architecture, applying DDD and CQRS principles for scalability and maintainability. The platform was designed for reliability under high traffic and real-time processing demands, integrating multiple third-party services for payments, games, and loyalty systems. Key Contributions: ● Designed and developed backend services using Laravel Octane for high-concurrency performance. ● Applied advanced architectural patterns including DDD, CQRS, andvarious design patterns to ensure codebase modularity and scalability. ● Integrated a wide range of third-party APIs, including payment providers, aggregators (e.g., SoftSwiss, Slotegrator, Digitain), and TruePlay for gamification and loyalty features. ● Implemented robust data pipelines and real-time tracking using Kafka and ClickHouse for event-driven processing and analytics. ● Built internal tools and admin interfaces using Laravel Filament for efficient system management. ● Optimized system communication and data caching with Redis, ensuring minimal latency and high throughput. Challenges Overcome: ● Managed complex third-party integrations, resolving issues related to inconsistent APIs and real-time data synchronization. ● Ensured system reliability across distributed services and handled failures gracefully through decoupled architecture and asynchronous processing. Achievements: ● Delivered a robust, production-ready platform capable of handling high-volume transactions and real-time game interactions. ● Achieved seamless integration with major casino content providers and payment aggregators, enabling rapid scaling of features. ● Contributed to the successful deployment and operation of a fully compliant, secure, and revenue generating iGaming platform.

Led the development of a feature-rich e-commerce platform for online flower and arrangement purchases. The solution supported secure, multi-method payment processing and incorporated tools to enhance user experience and customer retention. Key Contributions: ● Built a product management system for administrators, enabling product creation, categorization, and inventory control. ● Developed advanced product filtering and a high-performance keyword-based search feature to improve UX and conversion rates. ● Integrated secure checkout flows with Stripe, PayPal, Apple Pay, and Google Pay. ● Designed and implemented a tiered loyalty program with dynamic bonuses to drive customer retention. ● Integrated Mindbox for personalized marketing automation and customer engagement. Challenges Overcome: ● Managed shifting project requirements by adopting agile principles and flexible architecture design. Key Achievements: ● Delivered a fully operational, scalable e-commerce solution from the ground up. ● Built a loyalty system designed for scalability and long-term customer engagement. ● Improved internal task prioritization and streamlined development workflows.

Sigma Partners is a performance-based affiliate network offering exclusive in-house mobile content and credit card submit offers across multiple verticals, including education, lifestyle, astrology, games, and sports. The platform features carrier integrations, dynamic CPA adjustments based on traffic quality, and robust tools for affiliates and advertisers. Key Contributions: ● Designed and maintained a proprietary interface providing transparent access to real-time statistics, traffic analytics, and campaign performance metrics. ● Integrated affiliate offers via S2S postback and API methods, ensuring compatibility across diverse partner platforms. ● Developed a scalable and secure multi-currency payment system supporting wire transfers, card payments, USDT, and Capitalist. ● Enhanced the user interface to improve usability and workflow efficiency for both affiliates and advertisers. Challenges Overcome: ● Managed iterative development in response to evolving and incomplete product requirements. ● Addressed gaps in stakeholder onboarding by creating comprehensive training resources and user documentation. ● Ensured seamless integration with a wide range of carrier billing systems and third-party payment providers. Key Achievements: ● Delivered a transparent, high-performance affiliate management system with advanced reporting and fraud monitoring capabilities. ● Implemented detailed traffic quality tracking, improving decision-making for CPA adjustments. ● Facilitated successful onboarding and retention of affiliates and advertisers through structured support and training initiatives. ● Built a payment infrastructure capable of handling high transaction volumes across multiple payment channels.

Led the full-cycle development of a web application, from initial architecture design through deployment and continuous improvement. Focused on delivering a user-friendly, high-performance system tailored to evolving business needs. Key Contributions: ● Designed and implemented system architecture and infrastructure from the ground up. ● Developed a responsive, intuitive admin panel using Laravel Blade. ● Refactored legacy code to enhance maintainability, performance, and scalability. ● Optimized database performance through indexing, query tuning, and effective data caching strategies. ● Deployed the application to the production environment, ensuring a smooth and stable launch. ● Provided continuous maintenance, delivering feature updates and resolving bugs to meet dynamic project requirements. Challenges Overcome: ● Took initiative in both development and project management to address vague or shifting requirements and undefined team responsibilities. ● Transformed organizational inefficiencies into process improvements, facilitating better team coordination and workflow clarity. Results & Achievements: ● Successfully delivered a fully functional and high-quality product that exceeded client expectations. ● Boosted team productivity by identifying and resolving communication and process gaps. ● Optimized system resources, ensuring efficient use of time and budget. ● Achieved steady daily user growth, demonstrating the platform’s usability and market relevance.

Ubego is a location-based quest platform that merges storytelling and gaming to offer immersive city experiences. The platform supports three main user roles: Users (quest participants), Customers (quest creators), and Admins (platform managers). The project marked a significant milestone as the first professional development experience. Key Contributions: ● Developed and maintained functionality for quest creation and editing by customers. ● Implemented seamless purchasing and user interaction features for quest participants. ● Built admin tools for monitoring, moderating, and managing user-generated content and platform operations. Challenges Overcome: ● Faced steep learning curves typical of a first professional project, successfully overcoming them through hands-on problem-solving, self-education, and persistence. Achievements: ● Delivered a fully functional and engaging platform that enhanced user satisfaction through compelling user experiences. ● Launched secure and reliable payment infrastructure, facilitating smooth purchases and improving monetization. ● Contributed to a steady increase in platform revenue by continuously improving core functionality and user flow.