Profileimage by Sergej Ostashchuk Senior Cloud Architect (Azure), Solution Architect, Big Data Architect, Tech Lead from Bratislava

Sergej Ostashchuk

available

Last update: 02.11.2022

Senior Cloud Architect (Azure), Solution Architect, Big Data Architect, Tech Lead

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

Skills

Cloud architecture - preferable on Azure
Solution architecture, leading solution implementation
Infrastructure, configuration management, automation
System and data integration - on premices, in clouds, on trird party platforms
Networking - infrastructure, standards, protocols, VPN, routing, DNS, firewalls, private access, network security
Security, Azure Active Directory, custom RBAC roles
DWH & Data Lakes on Azure, ELT, BI, data marts
Logical and physical data architecture
Integration with 3rd parties (incl. Salesforce)
Event-based real time processing, batch processing, pipelines
Azure DevOps
Databases, MS SQL, Oracle, PostgreSQL, Teradata
Data lakes, Hadoop, Spark, Kafka
Big data, DWH & data lakes migration to Azure
Software development management
Hands-on programming (Python, SQL, Shell)
Previous programming experience: Java, Scala, web applications

Delivery of working solution and business value
Recovering of troubled projects
Fixing of old infrastructure and old code base
Technical leading, principal engineering
Technical and business consulting
Mentoring

 

Project history

03/2021 - Present
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. External consultant.

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

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
Engineer, Technical manager
Orange Slovakia, Bratislava
External consultant.

Contact form

Contact details

Profileimage by Sergej Ostashchuk Senior Cloud Architect (Azure), Solution Architect, Big Data Architect, Tech Lead from Bratislava Senior Cloud Architect (Azure), Solution Architect, Big Data Architect, Tech Lead
Register