DevOps Engineer

Koton is a proprietary trading firm and a top-tier market maker on the world's largest crypto exchange. Our core is high-frequency market making, where the speed and cost-efficiency of execution decide the outcome. Engineering isn't supporting the business here, it is the business.

• Own the platform our trading systems run on: Linux, AWS, our own on-prem infrastructure, networking, databases, deploys and observability.
• Make deployments safe in a live market with no maintenance window.
• Build observability that settles arguments: structured logging, meaningful metrics, latency histograms and disciplined clock synchronisation.
• Run the data layer: PostgreSQL and TimescaleDB, replication, Patroni failover, retention and compression policies, performance and backups.
• Own networking that matters commercially: connectivity and routes to exchange endpoints, IP whitelisting, remote access and failover paths.
• Improve the internal platform: access and identity across systems automated from Google Workspace by a Python service.
• Handle incidents and make the next one smaller.
• Work directly with developers, researchers and traders.

• Experience with AWS across multiple regions.
• IaC: Terragrunt + OpenTofu, in-house module library, remote state with locking.
• Config: Ansible — roles covering ~15 host types.
• CI/CD: Self-hosted GitLab, tag-driven build → registry → deploy pipelines, autoscaled spot runners, custom builder images.
• Data: TimescaleDB with Patroni HA behind health-checked HAProxy, plus SQL Server.
• Observability: Prometheus, Loki and Grafana.
• Network: WireGuard, pfSense driven by API, split-horizon DNS between cloud and on-prem.
• On-prem: Proxmox, Git and core databases.
• Workloads: Low-latency .NET services consuming real-time exchange data.
• No Kubernetes — containers run directly on hosts with host networking.

• Senior, hybrid, high-ownership individual-contributor role.
• Markets run 24/7, no maintenance window.
• End-to-end ownership.