freiberufler ETL, DWH, BI Consultant auf freelance.de

ETL, DWH, BI Consultant

zuletzt online vor 3 Tagen
  • 80€/Stunde
  • 81927 München
  • Weltweit
  • en  |  de  |  ru
  • 16.11.2022

Kurzvorstellung

Certified Data Integration PowerCenter Developer 9 Specialist, certified Ab Initio Technician, certified Snowflake specialist, certified Teradata 14 Technical Specialist and certified MicroStrategy Specialist Analyst

Auszug Referenzen (2)

"It was a great pleasure working with D., very active candidate and highly recommend."
Data Engineer
Kundenname anonymisiert
Tätigkeitszeitraum

8/2021 – 10/2022

Tätigkeitsbeschreibung

Sport, Data Warehouse and KPI Reporting
Responsibilities:
• Migration of data extraction from Data Virtuality to Adverity
• Collection and analysis customer's requirements
• Analysis of existing systems, products, processes and frameworks
• Developed ETL processes using Data Virtuality, Adverity, Amazon Redshift
• Analyzed performance issues and optimization of long running queries
• Configuration of Instagram connectors in Adverity
• Loaded data from Instagram, Facebook
• Scheduled/monitored loading processes
• Analysis and comparisson of data between source systems and existsing processes,
• Conversion old ETL logic to new ETL logic (procedures, SQLs, views, jobs)

Tools: Data Virtuality, Adverity, Amazon Redshift

Eingesetzte Qualifikationen

Datenbankentwicklung

"Zusammenarbeit lief reibungslos"
Senior Consultant
Shirin Kooros
Tätigkeitszeitraum

5/2020 – 10/2022

Tätigkeitsbeschreibung

Retail, Migration of Data Warehouse from Teradata to Snowflake
Responsibilities:
• Collection and analysis customer's requirements
• Development of ETL processes for data replication from Teradata to Snowflake using Ab Initio, Microsoft Azure and Teradata
• Analysis of existing systems, products, processes and frameworks
• Development, tests and deployment Ab Initio, Snowflake and Teradata patches and hotfixes
• Performance tuning
• Processes monitoring and support
• Analysis, comparison and fixes of data differences between Teradata and Snowflake
• Generation avsc files and metadata for ETL processes
• Comparison table’s DDL and avsc files
• Documentation

Tools: Snowflake, Ab Initio, Microsoft Azure, Teradata

Eingesetzte Qualifikationen

Datenbankentwicklung

Ich biete

  • Ab Initio
  • Business Intelligence and Reporting Tools (BIRT)
  • ETL
  • Informatica
  • MicroStrategy
  • Oracle Business Intelligence Enterprise Edition Plus (OBIEE+)
  • Oracle Database
  • snowflake
  • Teradata

Projekt‐ & Berufserfahrung

Data Engineer
Kundenname anonymisiert, München
8/2021 – 10/2022 (1 Jahr, 3 Monate)
Telekommunikation
Tätigkeitszeitraum

8/2021 – 10/2022

Tätigkeitsbeschreibung

Sport, Data Warehouse and KPI Reporting
Responsibilities:
• Migration of data extraction from Data Virtuality to Adverity
• Collection and analysis customer's requirements
• Analysis of existing systems, products, processes and frameworks
• Developed ETL processes using Data Virtuality, Adverity, Amazon Redshift
• Analyzed performance issues and optimization of long running queries
• Configuration of Instagram connectors in Adverity
• Loaded data from Instagram, Facebook
• Scheduled/monitored loading processes
• Analysis and comparisson of data between source systems and existsing processes,
• Conversion old ETL logic to new ETL logic (procedures, SQLs, views, jobs)

Tools: Data Virtuality, Adverity, Amazon Redshift

Eingesetzte Qualifikationen

Datenbankentwicklung

Senior Consultant
Kundenname anonymisiert, München
5/2020 – 10/2022 (2 Jahre, 6 Monate)
Großhandel
Tätigkeitszeitraum

5/2020 – 10/2022

Tätigkeitsbeschreibung

Retail, Migration of Data Warehouse from Teradata to Snowflake
Responsibilities:
• Collection and analysis customer's requirements
• Development of ETL processes for data replication from Teradata to Snowflake using Ab Initio, Microsoft Azure and Teradata
• Analysis of existing systems, products, processes and frameworks
• Development, tests and deployment Ab Initio, Snowflake and Teradata patches and hotfixes
• Performance tuning
• Processes monitoring and support
• Analysis, comparison and fixes of data differences between Teradata and Snowflake
• Generation avsc files and metadata for ETL processes
• Comparison table’s DDL and avsc files
• Documentation

Tools: Snowflake, Ab Initio, Microsoft Azure, Teradata

Eingesetzte Qualifikationen

Datenbankentwicklung

Senior Consultant (Festanstellung)
Lidl, Heilbronn
12/2017 – 4/2020 (2 Jahre, 5 Monate)
Retail
Tätigkeitszeitraum

12/2017 – 4/2020

Tätigkeitsbeschreibung

• Developing Ab Initio ETL processes, patches and hot fixes
• Conversion of ETL processes from Teradata to Ab Initio
• Applying Data Quality rules
• Developing processes for deployment of objects from Control Center
• Loading processes monitoring
• Setting Data Lineage
• Teradata performance tuning
• Optimizing Teradata views for business intelligence layer
• Optimizing Teradata queries for Microstrategy reports
• Code review
• Collecting and analyzing customer's requirements

Tools: Teradata 15.10 DB, Ab Initio 3.3.4.2, 3.5.2.2

Eingesetzte Qualifikationen

ETL

Senior Consultant (Festanstellung)
Audi Business Innovation, München
6/2017 – 10/2017 (5 Monate)
Automobilindustrie
Tätigkeitszeitraum

6/2017 – 10/2017

Tätigkeitsbeschreibung

• Mentored team
• Developed procedures and views in Data Virtuality for loading data from sources
• Developed models, looks and dashboards in Looker
• Analyzed source data
• Analyzed business requirements
• Collected and analyzed customer's requirements

Tools: Data Virtuality 1.9.7, Looker 4.0

Eingesetzte Qualifikationen

Business Intelligence and Reporting Tools (BIRT)

Senior Consultant (Festanstellung)
Audi, Ingolstadt
6/2016 – 6/2017 (1 Jahr, 1 Monat)
Automobilindustrie
Tätigkeitszeitraum

6/2016 – 6/2017

Tätigkeitsbeschreibung

• Explored Teradata Global Control Framework (GCFR), an automated framework to manage the ELT processes
• Collected and analyzed customer's requirements
• Analyzed DWH model
• Analyzed source data
• Created Source to Target mappings (S2T)
• Developed ETL processes using Teradata GCFR
• Tested ETL processes
• Developed procedures for GCFR metadata generation

Tools: Teradata 15.10 DB, Teradata Global Control Framework (GCFR)

Eingesetzte Qualifikationen

ETL

Senior Consultant (Festanstellung)
Sberbank, Moskau
2/2015 – 6/2016 (1 Jahr, 5 Monate)
Banken
Tätigkeitszeitraum

2/2015 – 6/2016

Tätigkeitsbeschreibung

• Analyzed Enterprise Data Warehouse
• Analyzed and developed ETL processes
• Analyzed and fixed ETL incidents from customer
• Searched for ETL error causes and removing them
• Developed patches for ETL processes
• Developed data fixes
• Simulated data errors and tested patches
• Reviewed ETL code
• Applied Multi-Value Compression (MVC) with saving more than 14 TB free space in Teradata database
• Resolved deadlock issues

Tools: Teradata 14 DB, Informatica PowerCenter 9.1.0

Eingesetzte Qualifikationen

ETL

Lead Consultant (Festanstellung)
Tele2, Moskau
7/2014 – 2/2015 (8 Monate)
Banken
Tätigkeitszeitraum

7/2014 – 2/2015

Tätigkeitsbeschreibung

• Supervised a team
• Analyzed customer requirements
• Designed ETL processes
• Developed mapping templates using PowerCenter Mapping Architect For Visio
• Generated multiple IPC mappings and IPC workflows
• Analyzed sources
• Mentored ETL developers

Tools: Oracle 11 DB, Informatica PowerCenter 9.5.1, PowerCenter Mapping Architect For Visio, Informatica Data Replication

Eingesetzte Qualifikationen

ETL

Lead Consultant (Festanstellung)
Promsvyazbank, Moskau
3/2014 – 7/2014 (5 Monate)
Banken
Tätigkeitszeitraum

3/2014 – 7/2014

Tätigkeitsbeschreibung

• Led a team of 8 people
• Analyzed Master Data Management system and ETL processes
• Used Informatica MDM: Informatica MDM Data Director, Informatica MDM Hub Console
• Developed IDD : Subject Area Group, Subject Area, Subject Area Child
• Used MDM Hub Console: Metadata Manager, Schema, Schema Viewer, Queries, Packages, Cleanse Functions, Mappings, Hierarchies, Security Access Manager, Data Steward, Batch Group, Batch Viewer

Tools: Oracle 11 DB, Informatica PowerCenter 9.5.1, Informatica MDM

Eingesetzte Qualifikationen

ETL

Lead Consultant (Festanstellung)
Binbank, Moskau
8/2013 – 3/2014 (8 Monate)
Banken
Tätigkeitszeitraum

8/2013 – 3/2014

Tätigkeitsbeschreibung

• Analyzed S2T (Source To Target)
• Analyzed sources
• Developed ETL processes
• Analyzed Neoflex Summary Report system
• Completed Neoflex Summary Report system conversion
• Developed Summary Report ETL processes
• Tuned IPC mappings and workflows performance
• Analyzed Data Warehouse
• Analyzed ETL processes
• Extracted IPC objects metadata using SQL scripts for IPC repository DB
• Wrote document «Data Warehouse technical description»
• Wrote document «Administrator guide»
• Used Informatica PowerCenter Versioning

Sources: Openway Way4 Cards, CFT-Bank, Summary Report Forms (Excel files)
Tools: Informatica PowerCenter 9.5.1, Oracle 11 DB

Eingesetzte Qualifikationen

ETL

Lead Consultant (Festanstellung)
Orient Express bank, Moskau
7/2013 – 3/2014 (9 Monate)
Banken
Tätigkeitszeitraum

7/2013 – 3/2014

Tätigkeitsbeschreibung

• Led a team of 2 people
• Gathered ETL design requirements
• Designed ETL processes
• Developed ETL processes
• Created 2500+ IPC mappings, 1300+ IPC workflows with a team of 3 ETL consultants in 3 months (8 sources, 434 tables)
• Analyzed PowerCenter Mapping Architect For Visio
• Designed mapping templates using PowerCenter Mapping Architect For Visio and generated multiple IPC mappings
• Generated multiple IPC workflows using XML and VBS scripts
• Tuned IPC mappings and workflows performance
• Generated multiple file parameters using VBS scripts
• Imported multiple IPC objects using pmrep
• Created dynamic SQL and shared IPC mapping for referential integrity checking
• Extracted database objects metadata using SQL scripts
• Created document for generating IPC mappings using PowerCenter Mapping Architect For Visio
• Mentored bank ETL developers
• Used Informatica PowerCenter Versioning

Tools: Informatica PowerCenter 9.5.1, PowerCenter Mapping Architect For Visio, Oracle 11 DB

Eingesetzte Qualifikationen

ETL

Software Programmer/Analyst (Festanstellung)
Renessance Credit Bank, Moskau
10/2008 – 7/2013 (4 Jahre, 10 Monate)
Banken
Tätigkeitszeitraum

10/2008 – 7/2013

Tätigkeitsbeschreibung

• Led a team of 5 people
• Analyzed sources
• Created S2T (Source To Target) for source systems
• Developed ETL processes
• Created Loan Portfolio Data Mart
• Maintained new and old ETL processes
• Tuned IPC mappings and workflows performance

Sources: Diasoft 5NT, FIS Profile, Openway Way4 Cards, FICO Capstone Decision Accelerator

Tools: Informatica PowerCenter 8.1.1, Oracle 10 DB

Eingesetzte Qualifikationen

ETL

Zertifikate

German B2, Telc
Februar 2020
Certified SnowPro Core Specialist, Snowflake
November 2019
Certified Ab Initio Technician, Ab Initio Software Limited
November 2018
MicroStrategy Certified Specialist Analyst, MicroStrategy Education
Juni 2018
Teradata 14 Certified Technical Specialist, Teradata Certified Professional Program, Verify Certificate # QKJDFSXKD1R4CHWX (Teradata 14 SQL exam, Teradata 14 Physical Design and Implementation exam)
November 2015
Teradata 14 Certified Professional, Teradata Certified Professional Program, Verify Certificate # C1XVGCS2DBQ15SF1 (Teradata 14 Basics exam)
Juni 2015
Certified DI PowerCenter Developer 9 Specialist, Informatica University 
Februar 2014

Ausbildung

Qualification of an Economist and Mathematician from Moscow State Institute of Electronics and Mathe

(Ausbildung)
Jahr: 2008
Ort: Moskau

Qualifikationen

Experience:
Ab Initio 3.3.1, 3.3.4.2
Ab Initio Metadata Hub 3.5.2 (MHUB)
Snowflake
Informatica PowerCenter 8.1.1, 8.6.1, 9.5.1, 9.6.1, 10
Informatica Developer 10
Informatica PowerCenter Mapping Architect for Visio
Informatica MDM 9.5.1
Informatica Big Data Management
Oracle 10g, 11g
Oracle BI EE 10, 11
Teradata 14, 15
Teradata Global Control Framework (GCFR)
Teradata Mapping Manager
IBM Data Stage 8.7, 9.1
IBM Cognos TM1 10.2.2
Apache Hadoop, Cloudera CDH 5.8
MicroStrategy 10
Looker 4.0
Data Virtuality 1.9.7
Ataccama Reference Data Manager 11
Analytix DS Mapping Manager

Über mich

I’m certified Data Integration PowerCenter Developer 9 Specialist, certified Ab Initio Technician, certified Snowflake (SnowPro Core) specialist, certified Teradata 14 Technical Specialist and certified MicroStrategy Specialist Analyst having 11+ years extensive experience in design, analysis, development and maintenance of extract transform load processes and data integration systems such as data warehouse, business intelligence and master data management.
I am an active, cheerful, self-motivated and positive thinking person. I have good communications skills and ability to learn quickly new technologies and systems. I like getting unusual and interesting challenges and finding different ways to solve them, I can work equally well and hard in a team or alone.

Persönliche Daten

Sprache
  • Englisch (Fließend)
  • Deutsch (Gut)
  • Russisch (Muttersprache)
Reisebereitschaft
Weltweit
Arbeitserlaubnis
  • Europäische Union
Home-Office
unbedingt
Profilaufrufe
1478
Alter
38
Berufserfahrung
14 Jahre und 1 Monat (seit 10/2008)

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