Oleksii Perets Email & Phone Number

• Implemented a horizontal scaling solution for the change data capture process, leading to a 300% performance enhancement and enabling flexible scalability across various workloads.
• Migrated a core data processing service from AWS EC2 to ECS Fargate and Application Load Balancer, resulting in a 10% optimization in infrastructure costs through implementing automatic scaling and eliminating.
• Enabled self-service incident response capabilities for the engineers by introducing an async-profiler hot-plugging capability, that allowed incident responders to obtain critical application dumps on demand, which.
• Introduced and ensured the adoption of a manual runbook that provided the possibility of profiling and analysis of results for all team members, eliminated dependence on one person’s expertise, and led to an 800%.
• Improved test coverage from 60% to 94% by implementing F.I.R.S.T and Testing Pyramid principles, and leveraging JUnit, Spring Boot Test, and Testcontainers libraries, which resulted in a 90% decrease in new issues when.
• Created an OpenAI-augmented learning platform content population system that allowed operators to create new training programs much more efficiently, leading to a 700% reduction in the time required to create a new.

• Coordinated the Java programming language training module for automation quality assurance students as part of the company’s internal training process, which enabled the company to acquire 60 qualified automation.
• Implemented a promo code system, allowing the marketing department to run campaigns that increased the number of new customers by approximately 15% according to quarterly reports.

Ukraine

• Created an internal tool for automating pricing configuration testing, leading to a 600% reduction in the time required for the quality assurance team to conduct all pricing checks.
• Led the order processing improvement initiative achieving a 100% speed improvement by implementing a series of load tests using Apache JMeter that resulted in identifying and eliminating SQL query bottlenecks.

Kharkiv, Ukraine

• Developed a cart validation mechanism that effectively prevented order placement with invalid items, simplifying customer experience and reducing customer support workload by 20%.

Kharkiv, Ukraine

Master'S Degree, Systems Of Technical Information Security

Bachelor'S Degree, Systems Of Technical Information Security