As a backend developer, I specialize in building scalable, efficient, and modern web application infrastructures. My expertise includes optimizing database performance and implementing cutting-edge technologies like Go, GRPC, and GraphQL. I collaborate closely with product and frontend teams to define APIs and deliver seamless, user-focused features.Key Responsibilities:▪ Database Architecture Development and Optimization: Spearheaded MongoDB database optimization projects, significantly improving query performance and reducing resource usage.▪ Legacy System Modernization: Led the migration of legacy systems to high-performance Go-based services using GRPC and GraphQL, enhancing maintainability and responsiveness.▪ System Performance and Scalability: Designed and implemented solutions to improve system performance, enabling seamless handling of large-scale data and concurrent traffic.▪ Cross-Team Collaboration: Partnered with product and frontend teams to define APIs and ensure feature delivery aligned with user needs.▪ Mentorship: Guided and mentored team members, fostering skill development and promoting best practices within the team.Tech Stack Highlights:▪ Programming Languages: Go, Python▪ Databases: MongoDB, ClickHouse, ElasticSearch▪ Caching and Messaging: Redis, RabbitMQ▪ Frameworks and APIs: GRPC, REST, GraphQLThrough my work, I strive to combine technical expertise with collaboration and innovative problem-solving to deliver impactful backend solutions.

I'm working on the biggest bulletin board in Moldova called 999, which offers a convenient way of selling and buying products via personal ads on the site. For more details please visit 999.mdMy Skills:▪ Design of application architecture▪ Knowledge in REST api and related frameworks▪ Build an UI for modern design principals▪ Publishing apps in Google Play Market▪ Knowledge of some major Firebase servicesMy Responsibilities:▪ Develop applications from scratch▪ Support for existing features and applications▪ Bug fixing▪ Application releases▪ Fast implementation of product manager's tasks▪ Keeping application libraries and frameworks updated

I am working on a project of payment system Qalize. Developing POS merchant Android application and user side client Android application. For more details go to qalize.comMy Skills:▪ Design of application architecture▪ Build a UI, markup, animation▪ Knowledge of the implementation of mobile applications on android▪ Ability to work with development tools and different version control systemsMy responsibilities:▪ Develop applications from scratch▪ Support for existing applications▪ Help other developers on the team, a quick understanding of their problem▪ Developing of support application(s) for usage in the main project▪ Implementation of new features and improvements▪ Bug fixing▪ Implementing in the project possibility of usage different payment terminals such as Ingenico, Handpoint, etc.