Sergei ERMAKOV

Providing market data for Citadel teams:

• feed handlers for different protocols and data providers
• high performance market data distribution services
• libraries and additional services enhancing market data
• improving, simplifying, optimizing different parts of market data stack

• Started as a senior developer in real time market data feeds for first 3 years.

• Mentored junior staff, fostering skill development and knowledge sharing.
• Switched to TL position and led 2 teams
• Implemented metrics to track and improve team performance
• Led test automation project integrating QA engineers into workflow

• developing distributed Electronic ticketing server
• worked on Oracle database optimization
• led PCI-DSS compliance project

developed Business Intelligence backend and UI:

• OLAP - reports
• time series analysis
• mentored junior developers