Simplyblock builds Kubernetes-native, software-defined NVMe-over-Fabrics block storage. Our customers run it underneath databases and stateful workloads where downtime is measured in money and latency is measured in microseconds.

Our operator and CSI driver are the part of that product customers actually touch. The operator turns roughly twenty custom resources into a running, self-healing storage cluster — nodes, devices, pools, snapshots, backups, replication, migrations, upgrades. The CSI driver turns PVC requests into NVMe-oF volumes and keeps them attached through failovers, reboots and path changes.

We are a small company, which means the same person designs a CRD in the morning and explains to a customer's platform team in the afternoon why their cluster did what it did. Both halves belong to the role. We're looking for someone early in their career but already solid in Go, who wants to spend the next few years becoming genuinely excellent at Kubernetes controllers and storage.

What you'll do
- Write and extend our controllers — reconcilers that never block,



complex processes modelled as multistep operations in persisted phases. You start on well-scoped controllers and grow into the ones that move data.
- Work on the CSI driver, from provisioning and attachment down to NVMe-oF paths, multipath states and mounts — including the unglamorous half that matters most: self-healing after something crashed halfway through.
- Design and evolve the API. CRDs are user experience: validation and immutability where they belong, typed phases and conditions, conversions that keep a shipped field from breaking a customer.
- Reproduce and fix real cluster behaviour. A drain that stalls, a migration that loses writes, a node that never gets re-probed. You read the logs, build the reproducer, and write the regression test that proves it.
- Write the failing test first. Every fix starts with a test describing the wanted behaviour, at the level that proves it — fake clients, a

📌 Kubernetes Operator (Argentina)
🏢 simplyblock
📍 Argentina