Lyubomir S.

Successfully delivered a game-changing user-configurable managed dashboard and tiles project, which significantly improved usability and accessibility Led the library upgrade project of existing .NET Core 3.1 backend infrastructure and associated core web and API server side to .NET 6 Revamped the entire SaaS solution data visualization pipeline by introducing data source categorization and centralizing system-wide content providers Spearheaded the design and implementation of a scalable data layer using SQL Graph Tables allowing support for agile data relationships and optimized data management while maintaining quality data storage and retrieval performance Managed client data integration projects from external Neo4j platforms into centralized SQL Graph storage with accuracy, completeness and observable transfers Led enterprise scope transition of legacy TFS servers and repositories into Azure DevOps Git version control environments with Cloud-Native support Implemented Cloud-Native DevOps ecosystem supporting agile mobile app development lifecycle and provisioning to Apple App store and Google Play Led the implementations of custom Single Sign-On integrations for clients, integrating identity providers such as SAML, OpenID, ADFS and OAuth

Managed and collaborated with client teams on a wide range of data integration and warehousing projects Led the design and implementation of ETL steps for data sanitization, validation, normalization, repair and restructuring Improved large data queryability and reduced export overhead through use of read-only optimized storage and event delegation Designed and implemented a centralized database warehouse and monitoring portal to visualize operational activities and business KPIs/metrics Implemented enterprise-level database backup and retention policies with disaster recovery protection, ensuring reliability and availability Implemented thorough metric collection for monitoring database backups, overall data health and user activity, as well as error and event logs Automated anonymization and shipment of sensitive data to maintain privacy and improve testing accuracy Led internal Ops teams and oversaw DBA activities and infrastructure maintenance tasks, ensuring operational efficiency and reliability Administered security access management for SQL databases, Windows VMs and internal portals at user and role group level Successfully delivered a micro service driven commenting feature to enhance user report accessibility and privacy throughout the business Spearheaded the migration from monolithic user preference and personalization structures to a centralized service, resulting in synced and consistent user experiences across all applications, and significantly improved performance through indexing key settings and filters Collaborated with internal developer team to design and implement a scalable identity provider service responsible for secure user authentication and authorization Restructured legacy business rules and data projects into a unified, CQRS-compliant data integration flow based on CLEAN Architecture principles