Main responsibilities:

• SDLC review and making suggestions for improvement

• CI/CD configuration

• Refactoring legacy code

• 3rd-party and internal api integrations

• Code-review

Main responsibilities:

• Application architecture

• Team management

• Release planning and tracking

• Cross team communication

• Code-review

Projects:

• Payment gateway - solution to aggregate different payment APIs (Paypal, Skrill, Webmoney, Paymentwall, G2APay etc)
  
• Billing - billing system of accounting in internal projects
  
• KYC - system of verifying identity of clients
  

Achievements:

• Design and develop features and processes to improve system efficiency and stability.

• Lead multiple teams.

• Develop architecture for both complex and heavily loaded solutions.

• Billing system with actual throughput up to proven 200 transactions per second. With possibilities to scale and increase performance even higher.

• Payment processing system with integration of dozens external APIs.

• Blockchain monitoring and analysis system

Educational project (specific under NDA)

Work with legacy application

Integration new design, fixing vulnerabilities and architectural mistakes

Achievements:

• Decrease team staff turnover

• Rise throughput from 150-180k unique visitors per day up to about 7 mln unique visitors per day (system with up to 35 millions page views per day).

• Implemented zero downtime deployment

• Released 10+ projects