Middle DevOps

Required Knowledge and Skills

Linux Systems

• Basic and practical knowledge of Linux server administration;

• Ability to work with systemd, cron, and log files;

• Troubleshooting issues using journalctl, system logs, and monitoring tools.

Containerization (Docker)

• Building Docker images (including understanding of multi-stage builds);

• Setting up and managing local environments with docker-compose;

• Basic experience working with a Container Registry.

Kubernetes

• Core Kubernetes concepts: Deployment, Service, ConfigMap, Secret;

• Deploying applications in a Kubernetes environment;

• Analyzing and diagnosing Pod and Service issues using logs and the describe command.

Version Control System (Git)

• Experience with branching strategies (feature branch, merge/rebase);

• Ability to resolve merge conflicts;

• Experience using Git in a team environment.

CI/CD (GitLab CI + GitOps)

• Automating build and test processes with GitLab CI;

• Setting up the process of building container images and pushing them to a Registry;

• Managing deployment processes using the GitOps approach (with ArgoCD);

• Managing deployment configurations through Git (Kustomize or Helm);

• Understanding the difference between the CI (build) and CD (deployment) stages.

Networking Technologies

• Knowledge of TCP/IP and DNS concepts;

• Diagnosing network issues (connectivity, routing).

Infrastructure and Cloud Technologies

• Familiarity with AWS services (EC2, S3, IAM, VPC, EKS);

• Experience working with virtual machines (VMs) in on-prem environments (VMware or alternatives);

• Understanding of Infrastructure as Code (IaC) and basic proficiency with Terraform (plan/apply).

Monitoring and Observability

• Understanding of monitoring and dashboards (Grafana);

• Basic experience in log analysis (ELK Stack).

Security

• Familiarity with Vault or similar tools;

• Understanding of secrets management and the principle of Least Privilege.