Pavel Barca Email & Phone Number

Working as a part of the Site Reliability Engineering team on multiple platforms within the company. Main responsibilities:- Handle complex enterprise issues, which often cross system, network and software boundaries- Design, develop and maintain internal service metrics (SLA, SLO, SLI) in cross-team collaborations- Design, develop and maintain dashboards, tooling, alarms and playbooks in collaboration with operations teams to support service-level objectives- Design, develop and maintain reusable monitoring and canary infrastructure- Design, execute and evaluate performance experiments- Collaborate with operations and engineering teams in determining root cause of major incidents, performance anomalies, or other customer-impacting issues- Discovering and analyzing systems performance related bottlenecks- Discovering and analyzing anomalies and issues, with goal of figuring root causes and mitigating of issues.- Writing ETLs to extract performance related KPIs and presenting the said KPIs in a systematic manner- Capacity planning using regressive machine learning models, and other statistical methods when applicable- Automating everyday repeatable stuff- Modeling Traffic Growth and making server purchasing recommendations.- Enterprise client traffic flow modeling, distribution and capacity checks.- Direct and participate in automation of performance and capacity checks and need for capacity augmentationRequired Skills:- High level knowledge of Linux and operating systems.- Scripting languages(Bash, Python, PHP, Perl)- Experience with Prometheus- Experience with Telegraf- Experience with Grafana- Docker- DB knowledge (MySQL, PostgreSQL, TimeScaleDB and others)- Statistics and ML.- Tableau- Traffic analyzing tools (Catchpoint, Kentik, Cedexis...) - CI/CD/CM tools (Jenkins, Ansible, Puppet, Chef...)

Working as a part of the Site Reliability Engineering team on multiple platforms within the company. Main responsibilities:- Discovering and analyzing systems performance related bottlenecks- Discovering, analyzing anomalies and issues, with goal of figuring root cause and mitigating issue.- Writing ETLs to extract performance related KPIs and presenting the said KPIs in a systematic manner- Capacity planning using regressive machine learning models, and other statistical methods when applicable- Automating everyday repeatable stuff- Writing custom monitoring tools for other teamsRequired Skills:- High level knowledge of Linux and operating systems.- Scripting languages(Bash, Python, PHP, Perl)- Experience with Prometheus- Experience with Telegraf- Experience with Grafana- Docker- DB knowledge (MySQL, PostgreSQL, TimeScaleDB and others)- Statistics and ML.- Tableau- Traffic analyzing tools (Catchpoint, Kentik, Cedexis...) - CI/CD/CM tools (Jenkins, Ansible, Puppet, Chef...)

As a contractor for Stackpath LLC, I am working on our Cloud Storage platform that is based on OpenStack Swift clusters:Main responsibilities:- Expanding platform - Creating automated alerting/monitoring systems- Creating scripts for automation of systems/network tasksMostly used Skills:- Knowledge of OpenStack Swift- Experience with Prometheus- Experience with Telegraf- Experience with Grafana- Understanding of OSI Model- Networking and basics of TE (Traffic Engineering)- High level knowledge of linux and operating systems.- Experience with scripting languages (Python, Perl, Bash).- Basic understanding of virtualization and virtualization techniques.

Working as a contractor for Stackpath LLC https://www.stackpath.com Main responsibilities:- Making sure that service is not interrupted and that Quality of Service is met.- Troubleshooting systems and networking issues on the fly.- Manipulating with BGP sessions and troubleshooting networking issues with upstream providers and peers, with basic knowledge of Traffic Engineering.- Troubleshooting hardware issues on our devices all around the world, and communicating with data centers.- Monitor servers and other devices as well as traffic via various tools (Cacti, Nagios, Grafana, New Relic, Prometheus, Kentik, Catchpoint, Panopta... )- Troubleshooting of data ingest systems and databases(Rabbitmq, MongoDB Shards, Mysql, FTP...)- Deploying and manipulating systems with Ansible and Puppet.- Cross-communication with other Engineering teams in order to get to the root causes of issues and fix them as fastest as possible.Required and mostly used skills: - Understanding of OSI Model- Networking and basics of TE (Traffic Engineering)- Knowledge of BGP configuration on various devices (Juniper, Cisco, Brocade, Arista...)- High level knowledge of linux and operating systems.- Experience with scripting languages (Python, Perl, Bash, PHP ...).- Knowledge about deployment tools.- Basic understanding of virtualization and virtualization techniques.- SQL- Jira ticketing system- Zendesk - Confluence

As a contractor for Stackpath LLC, my main job was:- Troubleshooting and helping clients with setting up CDN on various Content Management Systems (WordPress, Magento, Joomla, Drupal ...)- Troubleshooting CDN (Content Delivery Network) network related issues with clients ranging from personal domains to enterprise clients.- Troubleshooting issues related to DDoS on a large scale prevention platform, mainly for enterprise clients - Troubleshooting WAF () service, and setting up configurations to defer scrapers and bots from web sites.- Writing API SDKs in variety of different languages (Python, NodeJS, PHP, Java, Perl...).- Setting up custom nginx configurations for clients.- Cross communicating with other engineering teams and good understanding of clients needs in order to deliver a top-notch service Required and mostly used skills: - Networking knowledge, with main focus on 3rd and 4th layer of OSI model- Familiarity with tools like MTR and Traceroute.- Knowledge of HTTP protocol.- Experience with scripting languages (Python, Perl, Bash, PHP ...).- Basic knowledge of linux, most of the time either log parsing or writing small scripts for clients needs.- Familiarity with different CMSs and various plugins for CDN integration.- SQL - Jira- Confluence

Assistant at practical lectures in field of Computer Science:- Probability and Statistics- Applied Mathematics- C/C++- Object Oriented Programming

Bachelor'S Degree, Computer Science, 9.36/10

Master'S Degree, Computer Engineering

Bachelor Of Applied Science (B.A.Sc.), Computer Science, 9.9/10

Activities and Societies: Robotics

Master'S Degree, Data Science, 10/10