Sergey Bondarenko Email & Phone Number

Yerevan, Am

Yerevan, Armenia

Yerevan, Armenia

• Automated deployment and troubleshooting, reducing time-to-market time from 1 hour to 10 minutes for ∼1k servers across 5 cloud regions (C++ web server, Lua).• Reduced infrastructure costs by 20% through the successful migration of critical company services from virtual machines to Kubernetes, achieving significant optimization in system resource usage.• Facilitated over 15 developer teams in delivering features to the production environment independently by implementing standardized CI/CD pipeline self-service templates.• Improved system uptime by 10% with GitOps-based deployments using ArgoCD to manage Kubernetes.

Moscow, Russia

• Earned a remarkable 20% cost reduction by optimizing infrastructure through the implementation of VM autoscaling in GCP and AWS clouds.• Enhanced client satisfaction by 25% during system migration through the development of high-performing custom Lua logic for Nginx balancer, efficiently redirecting user requests based on 10k+ HTTP URL parameters to backend services, ensuring seamless transitions with zero downtime.• Initiated a cloud resource management approach by introducing Terraform in place of an in-house tool. This streamlined code unification and collaboration for 5+ SRE teams, resulting in a 100% reduction in resource provisioning time.• Completed Python 2 to Python 3 migration of 30+ internal services by mentoring SRE team, boosting code quality & modern coding expertise, advancing system maintainability.

Moscow, Russia

• Reduced processing time of incoming alerts by 10%, ensuring rapid incident response and optimized operational efficiency.• Developed a tool to automate creation of interactive Slack alerts from Zabbix, benefiting the 10+ Duty Operations team members.• Improved overall system stability by introducing a culture of code testing, resulting in 15% fewer bugs reported by end-users.• Implemented Puppet core management modules, leading to smoother operations and higher capacity to handle increasing demands.

Moscow, Russia

• Migrated 3 critical services from bare metal to Kubernetes, cutting server maintenance costs by 30%.• Optimized system memory consumption for log collection through the implementation of a robust logging pipeline with Rsyslog.• Empowered 5 teams to establish seamless communication among their services by setting up a high-performing DNS server BIND 9.