Sergej Ostashchuk not available until 12/31/2022

Sergej Ostashchuk

Azure, AWS, Big Data - hands-on architect, engineer, technical manager

not available until 12/31/2022
Profileimage by Sergej Ostashchuk Azure, AWS, Big Data - hands-on architect, engineer, technical manager from Bratislava
  • 85101 Bratislava Freelancer in
  • Graduation: not provided
  • Hourly-/Daily rates:
  • Languages: German (Elementary) | English (Full Professional) | Russian (Native or Bilingual) | Slovakian (Native or Bilingual)
  • Last update: 02.09.2021
KEYWORDS
PROFILE PICTURE
Profileimage by Sergej Ostashchuk Azure, AWS, Big Data - hands-on architect, engineer, technical manager from Bratislava
SKILLS
Architect: analysis, concept, high level design, low level design
Engineer: implementation, integration, making things working, troubleshooting
Technical manager: vision, implementation plan, agile delivery management
Experience in fixing and recovering of troubled projects.
Able to work as the bridge joining business and technical teams.
Experience in troubleshooting and resolving deep technical issues.
Attention to details, reliability.

Specialization

1. Azure, AWS
- principal engineering, architecture, infrastructure, system integration, data integration
- expert in infrastructure management, networking, security, access management, system integration
- expert in big data and cloud analytics
- SCRUM, DevOps

2. Big Data
- architecture, principal engineering, delivery
- initiation and design of new use cases
- on Azure, AWS and in private clouds
- data lakes, ELT/ETL, data streaming, DWH, BI, OLAP
- Hadoop, Spark, Kafka, Storm, NiFi
- MS SQL, Oracle, MySQL, PostgreSQL, NoSQL

3. Technical product owner / delivery manager
- clarification of scope, requirements and goals
- backlog management
- prioritizing business and technical needs
- delivery management

4. Previous active programming experience
Java, Python, Scala, Shell

I work as independent consultant since 2004. I am a regular employee (and CEO) of our company, with all registrations, insurances and taxes according to local and EU regulations.

My working language is English. I speak German at intermediate level, but to ensure quality of my services I prefer to use English on projects.
PROJECT HISTORY
TIME AND SPATIAL FLEXIBILITY
Actually 100% remote due to restrictions, otherwise up to 50% onsite.
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