Andrei Marchenkov

Key accomplishments include: -Launched detection features, reducing undetected vulnerabilities by 30% and improving license compliance -Increased Java application throughput by 40% through code optimization and refactoring, directly contributing to increased stability -Redesigned Scylla database schema and reduced data-intensive query execution time by 500 milliseconds -Developed сcompany’s IntelliJ plugin that helps more than 100 customer developers to manage source code license compliance

Key accomplishments include: - Implemented reactive Java APIs for payment gateway, reducing payment processing errors by 15% and ensuring robust, low-latency transaction processing. - Led the migration of legacy Java systems to a Microservices Architecture, improved application resilience and maintenance. - Optimized Java application to reduce startup time by 20 seconds. - Conducted code reviews, which resulted in cutting down of code smells by 60% and promoted knowledge sharing among team members.

Key accomplishments include: - Designed and developed a Java application to solve sourcing problem, which reduced delivery costs of 1-line-item orders by 20%. - Developed an IVR bot for a call center using DialogFlow to automate response on typical customers’ requests that decreased load on operators by 15%. - Established database diff management to speed up releases and prevent bad user experience.

Key accomplishments include: - Designed a migration data pipeline to migrate data from legacy systems to new then version with zero downtime for 10 departments. - Engineered and implemented to launch Event-Sourcing pattern to increase the amount of data available for reporting.