Viacheslav Demianenko

• Developed and maintained fault-tolerant, high-performance services for monitoring and verifying both cryptocurrency and fiat currency transactions, ensuring compliance with regulatory standards • Designed and implemented data-driven solutions to automate critical compliance and support processes, improving operational efficiency and scalability • Contributed to the development of core technologies that enable the company to meet industry compliance requirements, enhancing customer protection against fraud

• Led and managed the development team of a web platform for the full cycle of issuing export-import cargo declarations between EU countries and other countries based on Spring Boot Framework 3, Reactor (WebFlux), Java 14+, PostgreSQL • Developed functionality for platform users and integrated the platform with external government and third-party commercial applications • Implemented platform interoperability with AWS services such as S3, SNS, SQS, SES, EKS. Worked with Linux and supported CI/CD

• Worked in a team developing a system for managing, processing and merging both structured and unstructured data from multiple sources for business purposes and getting the big picture of the client • Participated in making technical decisions regarding the implementation of customer requirements, development and improvement of the product together with other team members • Developed most of the back-end functionality for the system, interacted with the front-end team

- Led the development of a product microservice with code coverage of 85% unit tests using Junit5 for working with a mortgage insurance at all stages, from calculating an insurance premium to sending a letter to the client with a policy using TIBCO JasperReports - Increased the availability of online insurance up to 80% - Created highly loaded REST/SOAP Spring-boot microservices - All development processes were built according to the Agile+Kanban methodology. Jira and Confluence were used for setting tasks

- Designed different medium-load backend applications based on microservice and monolithic architecture using JWT authentication and Spring Security - Built domain application model using PlantUML and implemented them in databases - Documented projects via Open API (Swagger) for integration with other projects - Deployed microservices in the Docker system for continuous application fault tolerance

- Studied Java, SQL, version systems as GIT, SVN at an advanced level, taking various educational courses - Passed the OCA exam with over 80% - Researched Spring Framework and its various projects - Learned how to work with Docker containerization system - Used the acquired knowledge for a pet-project to search for a CV