Technology, Information and Internet

ilert GmbH

11-50

Discover the pulse of daily life at ilert

Location: Hybrid – Cologne (Rheinauhafen) — 3 days in the office, 2 remote (Tue + Thu) Team: Engineering · Reports to CTO 
Keep the world awake — build reliability at scale
ilert helps thousands of DevOps &amp; IT teams detect, fix, and communicate incidents faster.
Our platform is mission-critical: customers rely on us 24/7 to keep their always-on businesses running.
As a Site Reliability Engineer at ilert, you’ll own the reliability, performance, and scalability of our core platform across AWS, Kubernetes, Kafka, and more.
<h2>Tasks</h2>
Build &amp; operate a highly available platform
<ul>
<li>Run and evolve our AWS-based infrastructure</li>
<li>Operate and optimize self-managed Kafka, ClickHouse clusters and our Observability stack</li>
<li>Ensure resilience, disaster recovery, and capacity planning across the stack</li>
</ul>
Improve reliability &amp; performance
<ul>
<li>Build and maintain SLOs, SLIs, error budgets, and observability dashboards</li>
<li>Debug production issues across layers (networking, Kubernetes, application, DB)</li>
<li>Improve performance of our ingestion pipeline</li>
</ul>
Automation &amp; tooling
<ul>
<li>Automate operations with Terraform, Helm, Kubernetes operators, and internal tooling</li>
<li>Build tooling for safer deploys, blue/green rollouts, and automated verification</li>
<li>Strengthen incident response workflows through deep collaboration with our AI SRE agent team</li>
</ul>
Security &amp; compliance
<ul>
<li>Implement best practices for workload isolation, secrets management, IAM, and auditability</li>
<li>Support our ISO27001 posture by automating controls and hardening our infrastructure</li>
</ul>
Cross-functional impact
<ul>
<li>Partner with Backend, AI, and Product teams to design reliable services</li>
<li>Participate in on-call rotation</li>
<li>Lead post-incident reviews and drive reliability improvements long-term</li>
</ul>
<h2>Requirements</h2>
<ul>
<li>3+ years experience as SRE, Platform Engineer, DevOps Engineer, or Infrastructure Engineer</li>
<li>Strong hands-on experience with AWS, Kubernetes, Linux internals, networking, performance tuning</li>
<li>Experience operating self-managed distributed systems, ideally Kafka or ClickHouse</li>
<li>Strong understanding of observability </li>
<li>Experience automating infrastructure with Terraform and CI/CD systems</li>
<li>Fluent English (our working language); German optional</li>
</ul>
<h2>Benefits</h2>
<ul>
<li>🚀 Product-centric - 100 % focused on solving a mission-critical pain felt by every always-on business |</li>
<li>🏡 Hybrid freedom - 2 days remote by default; gorgeous Rheinauhafen roof terrace when you’re in town |</li>
<li>🕒 Focus &gt; meetings - We time-box syncs, favour async docs and protect maker time |</li>
<li>🌴 28 days off - …plus public holidays |</li>
<li>🚲 Commute perks - subsidised public transport|</li>
</ul>

Site Reliability Engineer (f/m/x)

Working student

Working Student / Intern: Offensive Security Engineer (Red Team & AppSec) (f/m/x)

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