Vladimir A.

Director of Data Engineering @NexaMotion Group

Tampa, FL, US

Led a lean, highly skilled team of developers while taking sole ownership of the SQL Server database layer, delivering Transend.us MVP in 3 months, followed by a full-featured release in 6 months.Developed and scaled Transend.us, an enterprise e-commerce platform generating $100M+ in annual revenue.Designed and optimized SQL Server architecture, ensuring scalability from 100K to 1M+ catalog items with minimal performance refactoring.Implemented Full-Text Search and Fuzzy logic, enhancing product discoverability akin to Amazon\'s experience.Optimized OLTP database performance, achieving sub-10ms execution times for high-frequency queries.Assembled a team of highly skilled database professionals to develop BI, Data Warehouse and OLTP environments.Deployed SAN-less SQL Server active-active failover cluster utilizing lightning-fast local SSD storage replication.Upgraded SQL Servers to 2019 version, targeting future adoption of SQL Server 2025.Performed worst-case scenario Disaster Recovery operation in less than 48 hours, experiencing virtually no data loss.Utilized Distributed Availability Groups to move databases between Data Centers with little to no downtime.Partitioned user and guest authentication tokens between full and simple recovery mode databases.Imported legacy software users along with their hashed security settings for seamless platform migration.Leveraged hierarchy types to embed taxonomy of products and their fitment into searchable binary values.Schema-separated different functional entities, for both ease of access and security.Implemented custom inventory replication, improving performance by times compared to direct ERP calls.Scaled JD Edwards AS400 ERP pricing calls for large daily volume, averaging between 30 and 280ms.Deployed AWS RDS SQL Server instance to serve as middle ground for external ERP system integration.Leveraged Azure Blob Storage for offsite backups and database migrations.