Site Reliability Engineer (SRE) - ClickHouse & AWS Infrastructure

What you'll be doing

We run one of the largest self-managed ClickHouse installations on AWS, at petabyte scale, and we’re actively preparing it for the next 10–50× of growth. This role sits at the centre of that effort.

You won’t be in a typical “keep the lights on” SRE role. The work is about turning a fast-growing, stateful system into a predictable, well-automated platform. (provisioning, scaling, rebalancing, recovery)
That means reducing operational stress, designing safe automation for data-heavy workloads, and building the tooling and patterns that let the system scale without scaling human effort.

You’ll work on the kind of problems that only show up at large scale (petabytes of data, thousands of cores, constant ingestion).

• Managing large fleets of EC2-based VMs, disks, and networking for data-intensive workloads
• Improving operational tooling around deploys, schema changes, backups, restores, and incident response
• Working closely with ClickHouse engineers to turn database-level needs into infra-level solutions
• Reducing operational load by identifying repeat pain points and eliminating them through code and self-healing automation
• Participating in on-call and incident response, with a strong focus on making incidents rarer over time
• You’ll have room to design and automate, not just respond to alerts.

You should join this team if you like deep ownership of production systems, and are not afraid of working with stateful infrastructure.

Requirements

• Prior experience with ClickHouse or other OLAP databases
• Strong experience operating production infrastructure on AWS
• Hands-on experience with VM-based systems (EC2), not just managed PaaS
• Experience automating infrastructure using tools like Terraform, Ansible, or similar
• Solid understanding of Linux systems (disk, memory, networking, failure modes)
• Experience supporting stateful systems (databases, queues, storage systems, etc.)
• Ability to debug and reason about performance and reliability issues in production
• You’re comfortable owning systems end-to-end, including on-call responsibilities

You don’t need to be a ClickHouse expert on day one. We’ll teach you the database internals, but you do need to enjoy owning complex infrastructure.