Profileimage by Sergej Ostashchuk Senior Cloud & Data Architect, Lead Engineer | Certified: Azure, AWS, Big Data from Bratislava

Sergej Ostashchuk

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Last update: 29.01.2023

Senior Cloud & Data Architect, Lead Engineer | Certified: Azure, AWS, Big Data

Company: DIGITAL RAIN s.r.o.
Graduation: not provided
Hourly-/Daily rates: show
Languages: German (Elementary) | English (Full Professional)

Attachments

cv_290123.pdf

Skills

Senior cloud & data architect
Certified: Azure, AWS, Big Data


Independent contractor since 2002

Architecture, technical leading, principal engineering
Working in both business and technical domains
Pragmatic delivery of projects and solutions
Implementing new technologies and products
Resolving complex and hidden issues
Recovering and delivering troubled projects
Mentoring in-house team members

Azure, AWS, public, private and hybrid cloud architecture
Cloud solution architecture
Infrastructure as a code
Security, networking, integration
Application development, DevOps
Data architecture, DWH & Data Lakes on Azure
Databases, MS SQL, Oracle, PostgreSQL, Teradata
Data lakes, Hadoop, Spark, Kafka
Azure DevOps, Bitbucket, Git
Hands-on programming (Shell, PowerShell, Python)
Extensive previous programming experience: Java, Scala, SQL

30 years of IT experience using wide range technologies, tools and programming languages
20 years of DWH, BI and big data experience
8 years of cloud experience

Project history

05/2006 - Present
Co-Founder, CEO
Digital Rain, Bratislava / Prague
Internet and Information Technology

03/2021 - 01/2023
Cloud & Data Architect
A1 Telekom Austria AG, Vienna
Telecommunications
Cloud architecture, Microsoft Azure, multi-tenant environment, DWH, Data Lakes, BI, networking, security, integration, automation, applications, databases, analytics, devops.

12/2016 - 06/2018
Big Data Consultant, Architect
Munich Re, Munich
Insurance
Big data, cloud, Hadoop, BI and data science platform, infrastructure, architecture, DevOps, automation. External consultant.

05/2015 - 07/2016
Big Data Consultant
Teradata, Munich
Internet and Information Technology

04/2008 - 10/2012
Architect, Lead Engineer
Openet, Dublin
Telecommunications
External consultant.

03/2004 - 04/2008
Delivery engineer, Technical manager
Orange Slovakia, Bratislava
External consultant.

Certifications

Microsoft Certified: Azure Support Engineer for Connectivity Specialty
2023
Microsoft Certified: Azure Network Engineer Associate
2023
Microsoft Certified: Security, Compliance, and Identity Fundamentals
2023
Microsoft Certified: Azure Administrator Associate
2022
Microsoft Certified: Azure Fundamentals
2022
DataOps Methodology
2020
AWS Certified Solutions Architect – Associate
2019
MapR Certified Cluster Administrator v6 (MCCA)
MapR Technologies
2019
AWS Certified Cloud Practitioner
2018
Certified Hadoop Administrator
2017
Certified ScrumMaster
2017
Certified Hadoop Developer
2016

Local Availability

Only available for the countries Slovakia

Contact form

Contact details

Profileimage by Sergej Ostashchuk Senior Cloud & Data Architect, Lead Engineer | Certified: Azure, AWS, Big Data from Bratislava Senior Cloud & Data Architect, Lead Engineer | Certified: Azure, AWS, Big Data
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