Senior DevOps Engineer

Ubidex is seeking a Senior DevOps Engineer to join our team on a part-time 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, docker swarm clusters).
• Design, implement, and manage Infrastructure as Code solutions for our microservice architecture.
• 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).
• Proficiency in Python for automation and scripting.
• Solid understanding of Docker and container orchestration systems (k8s, swarm).
• Solid understanding of networks (routing, proxy, load balancing, dns, bgp).
• Experience with maintaining high-load systems(100k+ RPS), and kernel tuning.
• Experience with monitoring and logging tools to maintain system health and performance.
• Profound understanding of configuration management tools, especially Ansible.
• Experience with DBs (replication, HA, performance tuning) - PostgreSQL, Redis, ClickHouse, Aerospike.
• Experience with CI/CD tools, specifically Gitlab.
• 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 systems, like S3(Minio).

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

   

Product stack:
    

• On-premise, virtualisation and containerisation: Docker, Swarm
• Logs and monitoring: Prometheus, Loki, Grafana
• CI/CD: GitLab, Ansible
• DB: PostgreSQL, Redis, ClickHouse, Aerospike
• Storage: minio
• Programming languages: Golang, JS / nodejs
• Web: nginx, traefik, cloudflare