Investing.com strives to make financial market data and information accessible and free for everyone, anywhere. My role encompassed:ㅤ ⦿ Development of high-load microservices in Go, capable of handling up to 600k RPS.ㅤ ⦿ Migration of a legacy service from PHP to Go for optimization and ease of maintenance.ㅤ ⦿ Designing new services, conducting testing, and providing ongoing support.ㅤ ⦿ Developing external APIs for seamless interaction between various services from different countries.▶ Stack: Golang/Rust, MySQL, MongoDB, gRPC/Protobuf, CI/CD, Docker + k8s, Aerospike, Datadog.

VK Ads transforms users into potential clients by promoting communities and posts. And with myTarget, which is part of the ecosystem, your ads will reach multiple platforms. My role encompassed:ㅤ ⦿ Specialised in the development and optimisation of high-load services, handling up to 1M RPS, using the Golang.ㅤ ⦿ Engineered proxy services and infrastructure components to sustain efficient system operation at scale. ㅤ⦿ Development of internal APIs to facilitate interaction between various services. ㅤ⦿ Conducted migration of legacy services from C, Lua, Perl to Go for enhanced performance and maintainability. ㅤ⦿ Participation in discussions and design of new high-load services for the advertising platform. ㅤ⦿ Application of network programming to enable communication between components. ㅤ⦿ Working on various aspects of the advertising platform, including audience management, targeting, and analytics.▶ Stack: Golang/Lua/C/Perl, MySQL, gRPC/Protobuf, CI/CD, Docker + k8s

VK is developing an ecosystem of services to assist millions of people in efficiently managing their day-to-day tasks online.In a team of 5, I participated in the development of the PayDay and VK HR Tek applications.ㅤ ⦿ PayDay enables employers to send advance payments to employees based on the time worked since their last payment.ㅤ ⦿ VK HR Tek facilitates paperless exchange of personnel documents through a convenient portal. I was involved in building it from scratch.My contributions:ㅤ ⦿ Worked in a Scrum team, responsible for code quality.ㅤ ⦿ Conducted training on best Go practices and collaborated closely with frontend developers in the product team.ㅤ ⦿ Managed release builds and monitored logs.ㅤ ⦿ Proposed and implemented the idea of a boxed and scalable solution for the product, leading to an increase in customers and earning the VK People Awards (2022) "Product of the Year" for VK HR Tek.▶ Stack: Golang/PHP/Lua, Postgres, Redis, Kafka, gRPC/Protobuf, Swagger, CI/CD, Docker + k8s, Elastic

Creation of automated information systems for various purposes. My role encompassed:ㅤ ⦿ Worked in a team of 3 people and developed a system for submitting documents for the unified state exam.ㅤ ⦿ Implemented performance optimizations to increase the application's speed.ㅤ ⦿ Introduced new functionality to enhance the system's capabilities.ㅤ ⦿ Successfully migrated legacy logic from PHP to Golang.▶ Stack: Golang/PHP/Python/JS, Postgres, Redis, RabbitMQ, GORM, VC tools.

Enterprise engaged in the integrated development of control systems for rocket and space technology. My role encompassed:ㅤ ⦿ Worked in a team of 3 people and developed an electronic documentation system.ㅤ ⦿ Undertook a comprehensive overhaul and redevelopment of the business logic.ㅤ ⦿ Implemented new features to enhance the system's capabilities.ㅤ ⦿ Improved the stability and fault tolerance of the system.▶ Stack: PHP/Yii2/C++, Vue.js, MySQL, Docker, VC tools.

The company develops integrated control methodsㅤ⦿ Worked in a team of 2 members and provided end-to-end solutions for PJSC LUKOILㅤ⦿ The application includes all GOST (State Standard System), easy search, indestructible control filters, defects, so that you can find the information you need without having to search through more than 100 pages of documents ▶ Stack: Kotlin, Java, C++, Postgres, Gradle, VC tools