E-commerce / MarketplaceProject Stack: Kotlin, Go, Spring, Kafka, Mongo, AWS, Docker, K8s, Gradle, GIT, SonarQube, Jira,Confluence- Collaborated with the product owner and stakeholders to gather requirements, definetechnical solutions, and ensure aligned business objectives.- Developed and optimized microservices for marketplace functionalities, ensuring highperformance and scalability.- Integrated third-party services and APIs to enhance marketplace features.- Conducted code reviews to maintain code quality, adhere to coding standards, andimplement best practices.- Participated in designing and implementing the CI/CD pipeline for seamless deployment.- Automated user query responses, reducing the support queue and saving costs for thecompany on support services

Project #1 Domain: Information Services / Public SectorStack: Java 17, Spring, Hibernate, Kafka, Postgres SQL, AWS, Docker, Jenkins, Maven, GIT, SonarQube, Jira, Confluence.- Collaborated with product owner and customer to gather requirements, define technical solutions, and ensure alignment with business objectives- Developed RESTful APIs for seamless integration with other modules, including front-end systems, adhering to best API design and documentation practices- Developed and maintained core and converting libraries, ensuring reliability, scalability, and data consistency- Conducted code reviews to ensure code quality, adherence to coding standards, and best practices.- Participated in Agile ceremonies such as sprint planning, daily stand-ups, and retrospectives to track progress and improve team collaborationProject #2 Domain: Telecommunications | Cloud custom serviceStack: Java 11, 17, Spring, Dropwizard, Jersey, Jooq, Kafka, Postgres SQL, Hazelcast, Mongo, Jenkins, Kubernetes, ELK, AWS, SonarQube, Maven, GIT, Jira, Confluence.- Acted as a Team Lead, guiding a team of developers to enhance team cohesion, boostproductivity, and elevate overall satisfaction- Involved in developing the expertise of colleagues, which increased the quality andextensibility of the code, reducing the number of bugs, and speeding up the delivery of newfeatures- Designing and implementing a new microservices-based architecture integrations module,which decreased the count of bugs and stabilized interaction with third-party systems- Created architecture and implemented asynchronous SSE mechanisms to improve userexperience and reduce time for data loading- Improved project approaches to the Testing process and local environments to increase thequality of products.- Developed and maintained core libraries and based frameworks of microserviceapplications, ensuring reusability, reliability, scalability, and performance

Project #1 Domain: Fintech / Financial Services / Banking TechnologyTeam: PO, 10 Squads of 8 members(Teamlead, BA, BD, FR, QA, DevOps)Methodology: ScrumProject Stack: Java 11, Spring, Hibernate, Postgres SQL, Kafka, Redis, ELK, Kubernetes, OpenShift, TeamCity,SonarQube, Maven, Git, Jira, ConfluenceResponsibilities:- Developed architecture based on microservices, which led to increased productivity of thesubdivision for calculating credit limits.- Participated in Agile ceremonies such as sprint planning, daily stand-ups, and retrospectivesto track progress and improve team collaboration.- Worked closely with QA engineers to identify and resolve bugs and issues during thedevelopment lifecycle- Collaborated with cross-functional teams to gather requirements, define technical solutions,and ensure alignment with business objectives.- Participated in release, change processing, and bug fixing, resulting in the product'ssuccessful launch in the banking environment.Project #2 Domain: Facilities Management / Corporate ServicesTeam: 15 members (PM, BA, BD, FR, QA)Methodology: KanbanProject Stack: Java 11, Spring, PostgreSQL, Jenkins, Maven, Git, Jira, ConfluenceResponsibilities:- Developed RESTful APIs for seamless integration with external systems, adhering to bestpractices for API design and documentation.- Designed and implemented database schemas, queries, and stored procedures for efficientdata storage and retrieval.- Collaborated with cross-functional teams to gather requirements, define technical solutions,and ensure alignment with business objectives.- Involved in support, development, and mentoring of interns. As a result, the companyreceived quality developers, reducing the cost of searching the market.

Domain: Telecommunications / Information SecurityTeam: 15 members (Team leader, Researcher, BD)Methodology: ScrumProject Stack: Java 8, Spring, PostgreSQL, Redis, RabbitMQ, Thymeleaf, Teamcity, Docker Swarm,Portainer, Maven, Git.- Developed POC products for processing research applications, relieving the team ofscientists and reducing research costs.- Collaborated with cross-functional teams to gather requirements, define technical solutions,and ensure alignment with business objectives.- Supported processes by Investigated traffic dumps and preparing data, decreasing time forproduct research cycle- Worked closely with research command to identify and resolve bugs and issues during thedevelopment lifecycle.- Executed thorough code analyses to guarantee code excellence, conformity to programmingstandards, and application of best coding practices.- Prepared and deployed infrastructure for POC products, reducing the cost of providing DevOps

Domain: Science / Research / Information SecurityTeam: 5 members (Team leader, Researcher, BD)Project Stack: Java 8, Spring, PostgreSQL, Redis, RabbitMQ, Thymeleaf, Teamcity, Docker Swarm,Portainer, Maven, Git.Responsibilities:- Engineered prototype solutions for streamlining research application processes, significantlyalleviating the workload of scientific teams and cutting down on research expenditures.- Collaborated intimately with the research team to pinpoint and rectify development issuesand bugs, ensuring smooth progression through the development stages.- Boosted process efficiency through detailed data analysis, effectively shortening the cycletime of product research.- Led code review sessions to uphold high standards of code quality, compliance with codingconventions, and implementation of industry best practices.- Orchestrated the setup and launch of infrastructure for proof-of-concept products,diminishing the financial overhead associated with DevOps services