Roman Doubrava

Databricks & Snowflake Integration for S/4HANA & BW/4HANA - Product development High Volume data replication to Databricks & Snowflake for S/4HANA & BW/4HANA - Prototyping CUDA Code push down for ETL processes - AI & HPC Research for Hybrid Clouds & Data Platforms ‐ LLM large language model integration into business processes, GPT, OLlama ‐ Pytorch, Tensorflow, MLflow

Data Science & machine learning Databricks & Snowflake Integration ‐ LLM large language model integration into business processes, GPT, Llama, ChatGPT, AutoGPT ‐ NLP modelling, entity extraction, classification, topic modelling, LDA latent drichlet allocation ‐ Pytorch, Tensorflow, MLflow, model training, AutoML - CUDA Code push down - Databricks Integration with S/4HANA embedded Analytics - Snowflake Integration with S/4HANA embedded Analytics

SAP Cloud & BTP Platform - Cloud Foundry & Kyma Environment, Service integration - SAP Business Application Studio (BAS), SAP Build Work Zone - SAP HANA Cloud, SAP HANA Data Lake, ABAP Cloud SAP Datasphere & SAP Analytics Cloud - Infrastructure & Cloud Connector Setup incl. On-Premise system - Administration, Space Management, Security - Business Builder, Data Builder, Data Access Controls, Stories, Analytics Applications, Data Analyzer, Digital Boardroom, Datasets, Modeler, Multi Actions

HANA & BI data modeling, HANA Native development, Schema and meta data import, Generic system wide master data & hierarchy harmonization and maintenance, Third-Party System Integration, Attribute / Analytical / Calculation Views, Composite Provider, Advanced DSO, BI-IP Integrated Planning, HANA Planning Applications Kit (PAK), Smart Data Integration SDI / SDA, AMDP, CDS Views, InfoProvider, InfoCubes, InfoObjects, DataSources, Transformations, Non-SAP system integration, Performance optimizing

Migration of Oracle solutions to the new HANA architecture Design of new FRDP architecture and replacement of old Oracle data layers CDS View design for virtual access to the FRDP model SAP BW 7.3 Oracle to BWonHANA 7.4 Migration and redesign of data models SAP BWonHANA 7.4 to BWonHANA 7.5 Migration and redesign of data models SAP S4/HANA 1809 integration to BWonHANA 7.5 and re-design of the data models SAP Bank Analyzer 9.0 integration with BWonHANA 7.5 and redesign of the data models

IT architecture design and Integration of Planon Backend and Frontend Components to 11 SAP ERP Systems for 50 existing companies. The middleware used to connect all ERP systems was SAP PI 7.5 with AES Encryption and Planon SSO over Kerberos Authentication. Coordination of the developer teams Planon, SAP PI, SAP ERP Design of WebService interfaces for SAP objects: Cost center, WBS projects, Internal Order, Vendor, FX currency translation, Authorization roles

Architecture and development of a high performance Realtime Management Dashboard for SAP BCS Group reporting based on SAP Design Studio and SAP Lumira. Responsive Geospatial Analytics Components with Crosstab Drill Through functions. Integration of customer Queries and Custom Reporting Layers with dynamic filter and Jump query Drill Through. Implementation of a virtual InfoProvider, virtual Hierarchies and virtual master data for performance improvement of the dashoboard, response time < 2 Seconds.

Porting of a distributed excel application for cost restatements to a new architecture based on SAP BW and SAP BCS integration. Frontend development on SAPUi5 with oData services and planning enabled queries on plan DSO’s and InfoCubes. - Coordination of an international Offshore Team, SAP BW and BCS data modellierung - SAPUi5 Frontend mit SAP Web IDE and NetWeaver Gateway oData Services - Implementation of SAP BI-IP integrated planning solution interfaced to oData service

Design and Implementation of an integrated SAP planning solution for contribution margin accounting based on SAP CRM & SAP ERP mass data feeds into SAP BW 7.4 on Oracle 12c. Build of a Calculation engine for all dynamic key figures. Custom analysis process designer data flows and master data generation. Planning functions including cost distribution and process control. Custom SAP BEX Analyzer enhancement for master data maintenance. Custom AFO Excel Add-In for the planning application.

Offshore Team Coordination and distributed team development Migration from BW 7.0 to SAP BW 7.4 on HANA including SEM-BCS EhP6 using DMO and SUM Implementation of a generic SAP HANA stress test suite for simulating reporting users performing parallel query execution HANA native development of a FX calculation engine to speed up the processing from 48 hours to 30 minutes SAP Fiori prototyping with BSP JSON bridge for direct connectivity to SAP NetWeaver stack HANA performance optimization for 2500 users

Development & Support of a generic Excel plug-in for the global financial reporting and a web based reporting solution for downloading any data of Info Cube’s managed with a WebDynpro variant configuration and request monitoring frontend. Development of a mass data transfer web service for providing BI data to non-SAP systems. Following solutions were designed & implemented. Reporting frontend based on .NET Excel Add with SAP BI Integration using MDX & BICS for the daily use by 2000 analysts worldwide

Global reporting frontend based on .NET Excel Add with SAP BI backend Integration using MDX & BICS for the daily use by more than 2000 analysts worldwide. Global commentary solution for reporting enabling collaborative documentation of key figures in real-time. Global InfoProvider mass data export interface to third-party systems, managed by a frontend implemented with WebDynpro for ABAP. Implementing of IFRS consolidation functions and custom frameworks for restatements in the consolidation workbench

Validation engine for reconciliation between the sub BI ledgers based on SAP BI RSDRI API SAP GUI framework to enable displaying and editing of deep structured tables and for accessing BI, BCS & custom master data & attributes Generic ABAP Objects method cache for faster processing of repeating method calls Transport management tool for synchronizing quarterly code changes in a 5-tier landscape with approval process

Tutor for SAP certified courses - SAPTEC Fundamentals of SAP Web AS - BC400 ABAP Workbench fundamentals - BC430 ABAP Dictionary - ADM940 SAP Authorization Concept

Integration of customer processes within the SAP EWM landscape based on ITSMobile & RF-Framework - Implementation of customer specific RF dialoges for Symbol 3090 handhelds -Customization of SAP standard RF dialoges - Internet service installation

Project ERP Clearing House, Implementation of Interfaces and ABAP Proxies for an EWM, SCM, ERP landscape. Integration of handling unit management solution in EWM. Integration of SCM and ERP components in customer processes related to spare parts management, mass data & parallel processing of millions of records BW data modeling and loading scenarios, customer specific 3-party systems integration, KPI Reporting Implementation of customer RF dialogues for EWM processes based on ITS Mobile & RF-Framework

Projekt HR Cockpit, support & modelling of content like InfoCubes, DSO, DTP, process chains, DB-Connect, generic extractors in main areas of the SAP HR module. Implementation of a HR cockpit, based on the BI 7.0 Web AS and integration of BI Queries into SAP NetWeaver Portal 7.0 with iViews & WebDynpro for ABAP. - Implementation of distributed master data management solution for a 3 system landscape. - Implementation of dynamic calculation rules for key figures during processing of InfoCube update rules.

BW support / modelling, extension of data processing for company wide internal business volume elimination. Implementation of a generic interface for data extraction from specified SEM data pool.