Dmitry Khristenko SQL/Python developer

Senior Data Engineer / Actuary

Sberbank

Apr 2021 - Current (5 years 1 month)

Tools: Oracle, ETL, DWH, MsSQL, Python, R, Hadoop (Spark, Jupiter) Data engineer assignements: Oracle DWH actuary data sets from ODS level and primary systems. Data sets for ML engineering (DWH, ETL, MsSQL). Data visualisation - DWH, QlikView Developped and integrated into bank systems following modules: MarkModel recognition tool (Python, API) Actuary tool for risk adjustment (Python ML, Git)

Lead Data Engineer/ Business analyst

Sberbank

Sep 2017 - Feb 2021 (3 years 6 months)

Area: Retail banking. Payments & transfers. Focus: Business analysis: Product analytics, Customer behavior researches, Machine learning/Data analysis Tools: TeraData/SQL (procedure level), Excel (VBA), QlikView, PowerPoint, Hadoop (Spark, Hive, Hue, Jupiter), Python (ML) Ket projects: Data sets - IAAS, TeraData, ETL. Automated report based on Teradata live stats - (hundreds of million new transactions daily) Data visualisation dashboards PowerBi, QlikView, Google Cloud Platform Tarrif calculation tool based on live stats from TeraData(MsSQL back-end)

Executive Project Manager/owner

Self Employed

Mar 2014 - Jun 2017 (3 years 4 months)

The first sport gymnastics club in Russia. Unique product: first in market. Sport gymnastics as a mass sport. Club system for clients. Development of unique training programs based on sport gymnastics. Building a sport club from green field: Business case calculation. Tender activities. Business process development. Marketing activities: market analysis, price calculation, discounts and promotion. Organizing annual events ant competitions Participation in exhibitions Sales to individuals and enterprise clients Web site, SEO, SMM, direct/ad-words promotion Number of employees - 15 persons. Three departements: sales, admins, training. Sport club was a member of moscow federation of sport gymnastics

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Solution/Project manager

OJSC

Mar 2010 - Nov 2010 (9 months)

# Business case calculation # Budget planning, risk handling # Full tender process handling # Technical solution preparation, introduction and development of new services Main projects: Skylink MVNO (http://mtt.ru/abonents/mobile/index.wbp) Universal number (http://mtt.ru/abonents/fms/index.wbp)

Consultant on MNP project

Ericsson

Oct 2009 - Jan 2010 (4 months)

Customer: Aircel Mobile Number Portability feature implementation for Aircel.

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Out team leader

Core Network Roll

Mar 2009 - Jul 2009 (5 months)

Network rollout during 4 months from green field till commercial launch Customer: Gtel (Beeline VN) Responsibilities: PM, engineering team lead, design, consultation, knowledge transfer. Ericsson Core Network: 9 MSC-S R13, 5 MGW R5 on Juniper Backbone • Design and DT preparation • Integration with: ALU and Huawei BSS, Huawei HLRs, Comvers SMS-C, SGU(IN), USSD, IVR, PRBT, VoiceMail, AVAYA ISDN-PRI, POI interconnection • MGW upgrade, Troubleshooting (MGW, WireShark tracing), Advanced test system tracing • Feature activation and integration: PRBT, Advice of Charge, USSD callback

Core Support Consultant

Ericsson

Dec 2008 - Feb 2009 (3 months)

Customer Service Request handling, Emergency Support handling, Consultation Support Disturbance Investigation, Software Correction Handling, Advanced Trouble Shooting Knowledge transfer

Consultant (NRO team leader)

Ericsson

Aug 2008 - Nov 2008 (4 months)

Customer: Zain Projects: MiP implementation, Multi-vendor BSC re-homing to new MSS nodes Tasks: Operational Assistance during 20mln expansion project for brand new AXE and CELLO nodes all over Nigeria, Support O&M staff on site, Knowledge transfer, Control of Acceptance Tests after integration

S

Consultant SS/BSS specialist

Switch Support Department

Mar 2008 - Jun 2008 (4 months)

Assignments: (HLR, SCP, STP, MSC, BSC and MSS/MGW) Technologies: APZ 212 33/33C, APZ 212 40, APZ 212 50. APG40 C/4, C/2, (NT, Win2003S), CELLO4 Daily activities:supporting switch engineers in network fault resolution, network investigations to improve network quality, new node integration and testing, knowledge transfer to Switch and Switch Support Engineers. Functional role: MGW responsible

Experienced Support Engineer

Ericsson

Nov 2007 - Jan 2008 (3 months)

Assignments: (MSC-S, MSC/VLR, HLR, BSC, M-MGW, RNC, RBS) Tasks: Customer Service Request handling, Emergency Support handling, Consultation Support, Disturbance Investigation, Software Correction Handling, Advanced Trouble Shooting, Upgrades, Roll out projects -Primus Coach (Solutions Database management) - Administration of Russian E-business portals and it's sub applications - Bulletin issue for customers Projects: - URS(Beeline) layered network reconfiguration to support MSC in pool (Group Leader), Ukraine, Kiev - Job rotation - during one month I was supporting Ukrainian operators with my colleagues from Ericsson Ukraine

Mobile Core Support Engineer

Ericsson

Oct 2005 - Oct 2007 (2 years 1 month)

Assignments: (MSC-S, MSC/VLR, HLR, BSC, M-MGW, RNC, RBS) Tasks: Customer Service Request handling, Emergency Support handling, Consultation Support, Disturbance Investigation, Software Correction Handling, Advanced Trouble Shooting, Upgrades, NRO -Primus Coach (Solutions Database management) - Administration of Russian E-business portals and it's sub applications - Bulletin issue for customers Projects: - GSM MSS (IP) Start-Up and Integration, New SW Certification (APZ50, R12.1), Russia, Saint- Petersburg - WSDMA M-MGw, RNC Start-Up, Integration, Georgia, Tbilisi - MTS whole network upgrade to R12, Russia - GSM MSS (ATM) Start-Up and Integration, Russia, Krasnodar - MTS whole network upgrade to R12, Russia - AXE810 R11 metrolog

Z

Engineer

ZNIIS

Sep 2003 - Dec 2004 (1 year 4 months)

- Certification of telecommunication equipment. - Consulting telecommunication projects. - Administration of institute's LAN.

Dmitry Khristenko

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