Selected work streams and systems where I led or significantly contributed to architecture, performance, and delivery.
FI Z-landscape modernization
Refactored and unified 20+ FI Z-programs at Power Machines; 30–60% faster key reports and transactions via SQL optimization and removal of redundant logic.
ABAP
FI
Performance
High-load database optimization
Redesigned access patterns and indexing for heavy queries; response times from seconds to sub-second with 1000+ concurrent users.
SQL
Indexing
Scalability
Retail SAP & external integrations
At Stroitelyi Dvor: SAP retail solutions with RFC/IDoc to external systems, including external legacy systems; automated product master data and MM/SD enhancements.
IDoc
RFC
MM/SD
Contract approval & reporting platform
At Sibintek: extended OOP-based contract approval for Rosneft ecosystem; 10+ analytical and operational reports; stable rollout and post-go-live performance.
ABAP Objects
FI
Reporting