Senior DevOps Engineer

Ubidex is seeking a Senior DevOps Engineer to join our team on a time-and-materials basis and support our on-premise infrastructure, including multiple environments and services for a large-scale adtech product.

Responsibilities:

• Managing and maintaining Linux-based systems, optimizing and troubleshooting infrastructure (networks, databases, k8s cluster).
• Design, implement, and manage Infrastructure as Code solutions for our infrastructure.
• Respond to incidents by diagnosing performance issues, outages, or unexpected behavior, and work towards quick resolutions with a root-cause analysis.
• Analyze system performance metrics and bottlenecks to fine-tune services for maximum efficiency and uptime.
• Be a part of the critical path in a fast-growing project's development and delivery processes.

Requirements:
 

• Experience with Linux(Debian / Ubuntu).
• Solid understanding of Docker and container orchestration systems.
• Expertise with maintaining mid size bare-metal k8s clusters (10+ nodes).
• Solid understanding of networks (routing, proxy, load balancing, dns, bgp, service mesh).
• Experience with maintaining high-load systems(100k+ RPS), and kernel tuning.
• Experience with databases (replication, HA, performance tuning) - PostgreSQL, Redis, ClickHouse, Aerospike.
• Experience with CI/CD tools - ArgoCD.
• Experience with monitoring and logging tools.
• Profound understanding of configuration management tools - Terraform, Ansible.
• Expertise with virtualization tools (proxmox, kvm, lxc)
• Proficiency in Python for automation and scripting.
• Excellent problem-solving skills and the ability to work independently or as part of a team.

Nice to have:
 

• Hands-on expertise in maintaining distributed storage system - minio, ceph, rook, longhorn.

• Hands-on expertise in Cloud Platform (GCP, AWS, hclound).

   

Product stack:
    

• Hybrid / on-premise k8s
• Monitoring: Prometheus, Loki, Grafana
• CI/CD: GitLab, ArgoCD
• DB: PostgreSQL, Redis, ClickHouse, Aerospike
• Programming languages: Golang, JS / nodejs