CloudLinux is a global remote-first company. We are driven by our principles: do the right thing, employees first, we are remote first, and we deliver high-volume, low-cost Linux infrastructure and security products that help companies to increase the efficiency of their operations. Imunify360 Security Suite is a product of CloudLinux Inc., the maker of the #1 OS in security and stability for hosting providers. Imunify is an innovative security solution designed specifically for shared and VPS/Dedicated servers. The automated, easy-to-use solution with the six-layer approach to security delivers comprehensive and complete attack prevention. When a new vulnerability appears, a chain of automated systems has to notice it, obtain the vulnerable source, produce WAF rules, generate tests, prove the rules work and don't break legitimate traffic, and roll it out across tens of millions of websites — then watch production hard enough to pull it back automatically if it misbehaves. This involves solving hard engineering problems, working with data at scale, in a world with many surprises. The position is fully remote with versátil hours, allowing you to plan your day and work from anywhere in the world. Multi-stage, largely autonomous, and required to finish inside a fixed time window every day. Progressive release automation — rolling protection out across the fleet in controlled stages, with automated guardrails that hold or roll back a stage without a human in the loop. Quality gates — deciding, from live production signal, whether something we shipped is doing harm, and acting on that before it reaches the next stage. CI at scale — validation that stands up real, disposable environments across a large matrix of software versions and configurations, and returns a trustworthy verdict fast enough to stay inside the release window. LLM orchestration and cost control — several subsystems are driven by AI agents inside purpose-built harnesses, with evaluation, budgets and spend accounting as load-bearing components.



This runs on top of a petabyte-scale threat‑intelligence store and live telemetry from more than 60 million websites, under strict end-to-end latency budgets measured in hours. The failure mode we care most about eliminating is a budget missed silently. Turning fragile multi-stage batch jobs into resumable, idempotent, observable systems with explicit state machines and recovery paths; Defining and enforcing latency budgets and SLOs per stage, and making violations visible and actionable rather than silent; Making the systems low‑maintainable: eliminating manual steps, removing standing human babysitting, and reducing the operational surface rather than adding to it; Writing and maintaining unit and integration tests for logic that is genuinely hard to test — concurrency, partial failure, external API flakiness, multi‑stage state; Investigating and resolving complex issues across ClickHouse, GitLab CI, S3/object storage, Prometheus/Grafana and third‑party APIs; Collaborating with the security analysts and the Server team on architecture, and pushing back when a proposed design will not survive contact with production. 5+ years of professional backend / platform / infrastructure engineering experience; ~ Demonstrable experience building and operating multi‑stage data or automation pipelines — CI/CD systems, ETL/ELT, build and release automation, job orchestration, ML/data platforms, or similar. Real depth in at least one of Python, Go or Rust. Systems design judgement, more than raw coding throughput. Practical experience with workflow orchestration and job scheduling (Airflow, Temporal, Prefect, Dagster, Argo,



custom schedulers — whatever you have actually run in production); ~ A working instinct for reliability engineering: idempotency, retries with backoff, exactly‑once vs at‑least‑once, checkpointing and resumability, graceful degradation, backpressure, and safe handling of partial failure; ~ Hands‑on observability experience — Prometheus/Grafana, LGTM stack, or equivalent — including designing metrics rather than only consuming dashboards someone else built; ~ Deep CI/CD experience, ideally GitLab CI including dynamic/child pipelines and self‑hosted runners; comfort with Docker and container‑based test environments; ~ Experience with object storage (S3/Ceph or equivalent) and with large‑scale analytical stores — ClickHouse or another columnar database; ~ Excellent debugging skills across system, network and data layers; ~ Proficiency in spoken and written English. Experience with progressive delivery — canary and percentage‑based rollouts, feature flags, automated rollback, blast‑radius control; Experience running AI/LLM systems in production, particularly cost control, token accounting, evaluation harnesses, and dealing with non‑deterministic components inside a deterministic pipeline; Experience with fleet‑scale telemetry and with building quality gates on top of noisy production signal; Familiarity with WordPress, PHP, or WAF/ModSecurity concepts; Experience with configuration management (Ansible, Puppet, Salt) and with Linux service operations. Domain knowledge is learnable and we have specialists to learn it from — pipeline engineering judgement is what we cannot substitute. Owners — comfortable being the person accountable for whether a pipeline ran correctly last night; A focus on professional development. Interesting and challenging projects. Fully remote work with flexible working hours, that allows you to schedule your day and work from any location worldwide. Paid 24 days of vacation per year, 10 days of national holidays, and unlimited sick leaves. Compensation for private medical insurance. Budget for education.

📌 Pipeline Engineer (worldwide remote, work anywhere) (España)
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