Oleksandr S.

About Me

Oleksandr is a Senior Data Engineer with 8+ years of hands-on experience in data processing, prediction modelling and classification, backend development, deployment and maintenance of microservices. He is familiar with data model design - schema, scalability, immutability and idempotency. He implements data solutions that drive business value and customer satisfaction on multiple projects for clients.

AI, ML & LLM

Backend

DevOps

Other

Work history

UpStack
UpStack
Senior Data Engineer
2022 - Present (3 years)
Remote
  • Build and improve databases, acquire data, ETL/ELT, big data pipelines and deploy cloud services on projects.

  • Administer infrastructure solutions to improve data models, increase data accessibility and foster data-driven solutions for clients.

  • Implement monitoring solutions to ensure data integrity - working closely with engineers, product managers and other stakeholders.

Inuits
Inuits
Lead Data Engineer
2019 - Present (6 years)
Krakow, Poland
  • Build, implement, deploy and maintain stable, secure and scalable data engineering solutions on the Inuits platform.

  • Maintain and monitor the data warehouse, data modelling and data ingestion solutions on the new data platform.

  • Designed and executed custom APIs and microservices on the solution.

Avantida
Avantida
Data Engineer
2018 - 2019 (1 year)
Krakow, Poland
  • Designed and implemented a new solution to migrate Avantida's existing on-premise data platform to AWS.

  • Translated functional requirements and processes into technical specifications for the development of data warehouses.

  • Developed, deployed, and maintained data pipelines and reporting system on the Avantida platform.

StrikeTech
StrikeTech
Software Engineer
2018 - 2018
Krakow, Poland
  • Designed and implemented new web applications and delivered a data platform on the project.

  • Worked on the data warehouse on the platform - implementing the web service infrastructure and supporting technologies.

  • Collaborated with other engineers to ensure the new data infrastructure scalabily meets StrikeTech's business needs.

Contentful
Contentful
Data Engineer
2017 - 2018 (1 year)
Berlin, Germany
  • Developed BI services and recommended software improvements to enhance functionalities and optimizations.

  • Collected data from multiple sources, built event-based systems and documented the data environment on the project.

  • Worked on 3rd-party services and integrations for Contentful.

StrikeAd by Sizmek
StrikeAd by Sizmek
Data Engineer
2014 - 2017 (3 years)
Krakow, Poland
  • Designed, built, tested and maintained the custom ETL, data processing and prediction systems within StrikeAd.

  • Provided solutions to complex technical issues - handling API integrations, investigating and debugging defects.

  • Identified and leveraged modern tools to stay current on data solutions, technologies and services on solutions.

StrikeAd by Sizmek
StrikeAd by Sizmek
Automation Test Engineer
2014 - 2014
Kyiv, Ukraine
  • Developed and executed software automation test frameworks and strategies - planning test schedules per project scope.

  • Actively participated in white box testing, code reviews and integration tests on the project.

  • Worked with different Big Data tools to enhance performance on different sets of data for StrikeAd.

Krusche and Co.
Krusche and Co.
QA Manager
2012 - 2013 (1 year)
Kyiv, Ukraine
  • Led and engaged stakeholders to discuss solutions, QA metrics and performance on 4 projects within K&C.

  • Conducted quality assessments tasks and supervised testing activities to ensure quality deliverables on solutions.

  • Built, managed and executed complex, manual and automation test plans and solutions across projects.

 IntroPro
IntroPro
Automation Test Engineer
2012 - 2014 (2 years)
Kyiv, Ukraine
  • Created and implemented test strategies, plans and cases on multiple automation tests within IntroPro.

  • Established test automation processes on solutions - evaluating and planning the test automation roadmap.

  • Identified defects and bugs, worked on resolutions, monitored bug resolution efforts and tracked successes.

Showcase

Data Engineer - Audigent
Data Engineer - Audigent
  • Audigent is a data management platform focused on content analysis and audience identification.

  • It delivers data solutions to help Audigent analyze internet traffic and create audience segments.

  • The platform's primary goal is to improve audience identity through data insights.

Data Engineer - Julius Influencer Platform
Data Engineer - Julius Influencer Platform
  • Designed and created a new reporting and data analytics platform for the Julius influencer marketing software.

  • Architected the data model, audience analytics platform, and machine learning models.

  • Developed ETL processes to support the platform's functionality.

Data Engineer - Analytics and Prediction Platform (Nokia)
Data Engineer - Analytics and Prediction Platform (Nokia)
  • Developed and deployed a new analytics and prediction platform.

  • The platform receives metrics from mobile network equipment.

  • It displays results to users on a dashboard.

Education

Master's Degree in Application Software Development
Master's Degree in Application Software Development
National Aviation Universit
2005 - 2007 (2 years)
Bachelor's Degree in Computer Science
Bachelor's Degree in Computer Science
National Aviation Universit
2001 - 2005 (4 years)