Internal statistics and analytics develop, collection and visualization: collecting data from 200+ bare-metal servers, clouds, CDNs, aggregating, ETL (stack - Clickhouse, Redis, Python/Perl scripts, Filebeat, python/django) Hardware installation and operations systems support (Centos/FreeBSD): Ibm, dell. Linux administration (redhat based): from basic installation to production usage. Network file system setup and support (ceph). Integration with MS Active Directory, LDAP, Cloud APIs (like Level3, AWS, Ali). Develop and support python/django webui, api for external services. C/C++ micro services up to RPM packets building and continuous support. Experience with IBM system X, Dell Power Age servers. Database administration and programming for Postgresql, Clickhouse, Redis, MongoDB and other. Programming languages: python, perl, lua, c/c++ (make, gmake, cmake), php, nvidia cuda.

Developed CDN based on Nginx web server with unique links system and other. Created mass mail system for marketing. Internal statistics system with integration to SalesForce, CleverBridge, Marketo, DigitalRiver and other systems. Started unix (linux) administration.