123cluster

123Cluster is a leading onsite solution provider for end-to-end database management. We specialize in Oracle, MySQL, MariaDB, MongoDB, PostgreSQL, Redis, SQL Server, and Elasticsearch. Our platform features a user-friendly drag-and-drop interface, private database cloud, and is fully DevOps-ready.

We're looking for a Developer who enjoys the infrastructure side of backend work — someone comfortable with VMs and Kubernetes, building the logic that automates database operations and shipping Helm charts to clients.

What makes you a great fit:

• 1+ years of professional software development experience with Python.
• Proficient with Django and Django REST Framework.
• Solid SQL skills — you write queries, understand joins, indexing, and can reason about query performance.
• Hands-on experience with Kubernetes: deploying workloads, debugging pods, reading and writing YAML manifests.
• Comfortable working with VMs — you know your way around a Linux environment.
• Written and spoken English at a working proficiency level.
• Self-proactive — you spot problems, propose improvements, and suggest better ways to solve things.
   

Will be a plus:

• Understanding of PostgreSQL replication: streaming replication, logical replication, failover and switchover mechanics.
• Experience with PgBouncer, HAProxy, and Keepalived for connection pooling, load balancing, and high availability.
• Prior experience writing or maintaining Helm charts.
• Exposure to additional database engines (MySQL, Oracle, SQL Server, Elasticsearch).

Your day-to-day in this position:

• Build and maintain the Django DRF API and raw Python task services for database provisioning, replication, backups, and health monitoring across VMs, Proxmox, and Kubernetes.
• Own Helm chart releases for client-facing deployments.
• Navigate VM-based and Kubernetes-hosted database instances — handle differences in networking, storage, and failover.

• Write and optimize SQL queries for API endpoints interacting with managed database instances.

   

Why work with us?

• Product company in the final pre-release stage — real impact on what ships.
• 3-month structured onboarding alongside database experts, Kubernetes engineers, and code leads.
• Fully remote, full-time position.
• Direct influence on architecture and tooling decisions.