Senior Infrastructure Engineer

High-load advertising network with 10+ years on international market. TrafficStars registers over 7 billion events per day in a ClickHouse cluster of 3.6 petabytes, +500 servers in data centers of Europe and USA. The network processes over 1 million requests per second at peak. The vacancy includes relocation to Limassol, Cyprus with full official employment. Responsibilities: development and support of IT infrastructure in a high-load geo-distributed project; ensuring uninterrupted operation of infrastructure and services; maintenance of bare-metal k8s clusters; maintenance of ClickHouse, Kafka, PostgreSQL, Aerospike clusters; automation of processes; detection of potential problems and participation in solutions; searching, testing and implementing new solutions to optimize processes and improve service quality. Requirements: Linux server administration experience; Kubernetes administration; ClickHouse, PostgreSQL, Redis administration; experience with Kafka; understanding of IaC principles; Prometheus stack; ELK/EFK. Plus: Aerospike experience; GitLab CI; Ansible automation; programming skills (Python, Bash, Go, etc.). We offer: no dress code; laptop choice (Mac or PC); ticket purchase to Cyprus; family relocation assistance; work visa and family guest visa; housing for first month; medical insurance and mobile communication; free lunches and drinks; fruit baskets; free English and Greek courses; sports activity payment; partial payment for schools and kindergartens.