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: robust RFC/IDoc integration layer for SAP Retail with real-time pricing and inventory sync; automated product master data; MM/SD enhancements with validation rules; self-recovering data exchange.
IDoc
RFC
MM/SD
Contract approval & reporting platform
At Sibintek: mission-critical OOP contract approval for Rosneft; 10+ FI analytical/operational reports; query rewrites for faster decisions; stable rollout and post-go-live performance tuning.
ABAP Objects
FI
Reporting