Installation and support of servers on client side. Troubleshooting various UNIX service issues (ftp, http , smtp and so on). Deployment and Performance testing of web services. Network equipment configuration. Writing services of parallel computing using Python (Twisted framework) Creating internal Web-Sites for projects using Python, Django and Ruby (RoR)

Built API testing framework using pytest. UI automation using pytest in conjunction with selenium Developed, maintained and optimized Build/Test Pipelines (Azure DevOps), introduced correct versioning system and branching strategy. Developed and maintained dev/test/prod environments based on Azure services.

Creating tools/utilities for testing using Python, Bash, C. Some test performs via LoadRunner. Log/Data analysis. Daily routines automation (drastically reduced team daily efforts related to services monitoring and issue fixing). Improved deployments and reduced configuration related issues by containerizing apps Huge experience in troubleshooting deployment issues. Performance testing of core trading platform, backend services, end to end testing. Data preparation/validation.

Performance testing of Trading Platform. Including soak, stress and spike testing. Writing scenario generators(DDT) and test helpers. Capturing and analyzing Market Data (FIX protocol) Deploy, maintain and configure test environments for MarkedData clients. Performance testing of different web services (SOAP, REST) and back-ends. Mainly consist of soak, configuration and spike tests. Creating test generators/scenarios using self-written and internal tools. Support and performance optimization of RMDS (Reuters Market Data System) deployment, hardware and software resiliency testing of RMDS and feed handler infrastructure. Performance tuning on software/OS level.

Integration and development of VoIP systems based on IP-PBX Asterisk. (AGI Scripting using Python) Network configuration and support for Call Centers based on IP-PBX Asterisk.