System Administrator

Tech stack we use (experience with all of them is necessary):

● Network storage: DRBD, Ceph, S3

● Virtualization: LXC, KVM

● Backup: Bacula (and derivatives)

● CI/CD: GitLab CI/CD

● Containers: Docker, Podman, containerd

● Web stack: Nginx, PHP, Golang, NodeJS

● Orchestration: Kubernetes

● SCM: SaltStack, Ansible

● VPN: OpenVPN, OpenConnect

● Databases: PostgreSQL, MySQL, MongoDB, ClickHouse

● Queue engines: RabbitMQ, Kafka

● Cache systems: Redis, Memcached

What you will do:

● Manage and monitor Unix-like systems (primarily Debian/Ubuntu)

● Coordinate tasks with developers and other sysadmins

● Work with a professional and experienced sysadmin team

● Maintain our infrastructure across local and remote environments

● Communicate task scope and complexity to stakeholders and managers

● Adopt new technologies and implement automation to improve maintainability of our infrastructure and processes

● Ensure the security and reliability of systems

● Share 24x7 coverage of monitoring alerts in coordinated shifts with the rest of the team

Must-have requirements:

● Degree in Computer Science or related field

● Solid understanding of Linux systems and network stack

● Experience in system administration (Debian, Ubuntu)

● Experience with stack, described above

● Ability to work cross-functionally with developers, sysadmins and project managers

● Ability to explain complex technical tasks to non-technical stakeholders

● Ability and motivation to learn about new technologies and approaches

● Strong team collaboration skills

● Fluent in English

● We are looking for someone ready to take full responsibility and show strong commitment to the project

● Protocols: OpenVPN, IMAP, SMTP, LDAP, DNS, TCP/IP, OSPF

● Knowledge of TLS/x509 certificates, encryption basics

● Hands-on experience running Kubernetes in bare-metal environments

● Hands-on experience with SCM tools (SaltStack/Ansible)

● Experience with monitoring and logging tools

● Familiarity with CI/CD pipelines and related tooling (Jenkins, ArgoCD, GitLab CI/CD)

● Familiarity with distributed systems (ClusterEngine: Corosync, Pacemaker)

● Hands-on experience with software defined networking-based systems