Valerii Stryhun

Working on complex highly-loaded Danish cloud based solution for analyzing advertisements campaigns,
building reports, integrating with different ad platforms, available for different countries.

• Full redesigning and rewriting existing solutions to be more secure testable and with higher
  performance.
• Hosted and maintained highly loaded services on AWS.
• Provided technical support using knowledge of complex technology to solve problems and support new projects.
• Integrating with different third party services such as Google, AdForm, etc.
• Upgrading big solution's to the new .NET Core versions.
• Architecture designing new highly scalable services.
• Implemented culture specific functionality for more than 15 countries.
• Trained and mentored junior developers and engineers, teaching skills in C# and working to improve overall team performance.
• Building highly loaded system for more than 2.5 million requests per day.
• Applying design patterns.
• Testing and bug fixing.
• Worked with customers for needs analysis and to determine vendor costs.

Working on PerfectMind highly-loaded administrative solution for more than 2400 companies in more than
25 countries around the world.

• Cooperating with headquarters and part of the team located in Vancouver, Canada.
• Performance optimization.
• New features architecture.
• Full rewriting system modules due to customers' requests.
• Designing new services.
• Testing and bug fixing.
• Developing complex software systems.
• Applying design patters.
• System modules integration.
• Task formalizing with customers.
• Creating highly-scalable systems.
• User support.

Working on complex highly-loaded Danish internet shop Stylepit available for 7
countries.

• Designing database structure.
• Developing complex software systems.
• Creating country dependent functionality.
• New features architecture.
• Applying design patters.
• Performance optimization.
• Testing and bug fixing.
• Task formalizing with customers.
• Creating highly-scalable systems.
• User support.

Working on different USA projects such as cleverDome, United Planners Financial Systems and more.

• Editing existing functionality for better performance.
• Integrating 3rd party solutions.
• Implementing new features.
• Code and data management performance optimization.
• Applying design patterns.
• Testing and bug fixing.
• Collaborating with customers.
• Editing existing and implementing new site design.
• Creating mobile adaptive design.
• Knowledge sharing.
• Full rewriting system modules due to customers' requests.
• User support.