Senior Observability Platform Engineer

<div class="content-intro"><p><em>At Klaviyo, we value the unique backgrounds, experiences and perspectives each Klaviyo (we call ourselves Klaviyos) brings to our workplace each and every day. We believe everyone deserves a fair shot at success and appreciate the experiences each person brings beyond the traditional job requirements. If you’re a close but not exact match with the description, we hope you’ll still consider applying. Want to learn more about life at Klaviyo? Visit <a class="_ymio1r31 _ypr0glyw _zcxs1o36 _mizu194a _1ah3dkaa _ra3xnqa1 _128mdkaa _1cvmnqa1 _4davt94y _4bfu18uv _1hms8stv _ajmmnqa1 _vchhusvi _kqswh2mm _ect4ttxp _syaz13af _1a3b18uv _4fpr8stv _5goinqa1 _f8pj13af _9oik18uv _1bnxglyw _jf4cnqa1 _30l313af _1nrm18uv _c2waglyw _1iohnqa1 _9h8h12zz _10531ra0 _1ien1ra0 _n0fx1ra0 _1vhv17z1" href="http://klaviyo.com/careers" data-renderer-mark="true">klaviyo.com/careers</a> to see how we empower creators to own their own destiny.</em></p></div><p>At Klaviyo, <strong>Platform Engineering</strong> is what you get when you treat operating complex systems as a <strong>software engineering</strong> problem. Our <strong>Observability Platform</strong> group applies that philosophy to how we collect, store, and surface signals about the health of our products and infrastructure. We build and run the shared observability stack—metrics, logs, traces, alerting, and developer-facing tooling—that enables every product and platform team at Klaviyo to understand how their systems behave in production and to ship changes with confidence.</p> <p>As a <strong>Senior Observability Platform Engineer</strong>, you will design, build, and operate the core observability services that power Klaviyo’s monitoring and incident response. You’ll partner closely with product engineering, other platform teams, and security to define how we instrument services, standardize telemetry, and make it easy for engineers to debug issues in a fast-growing, distributed environment.</p> <h3><strong>How you’ll make an impact</strong></h3> <ul> <li><strong>Own observability platforms end-to-end</strong> – Design, implement, and operate scalable, highly available systems for metrics, logging, tracing, and alerting (e.g., Prometheus-compatible metrics, time‑series storage, log pipelines, distributed tracing backends).</li> <li><strong>Build opinionated developer experiences</strong> – Create libraries, dashboards, runbooks, and self-service tooling that make “doing the right thing” for observability the easiest path for Klaviyo engineers.</li> <li><strong>Set standards for telemetry</strong> – Define and evangelize best practices for instrumentation, SLOs, alerting, and incident readiness across services and teams.</li> <li><strong>Drive reliability through data</strong> – Use observability data to identify performance bottlenecks, reliability risks, and architectural improvements, and collaborate with teams to address them.</li> <li><strong>Automate everything</strong> – Treat infrastructure as code; build automation for provisioning, configuration, scaling, and upgrades of observability components.</li> <li><strong>Mentor and multiply</strong> – Partner with engineers across Klaviyo to level up skills in debugging distributed systems, designing effective alerts, and using observability tools to make better product and reliability decisions.</li> <li><strong>Utilize AI</strong> – You’ve already experimented with AI in work or personal projects, and you’re excited to dive in and learn fast. You’re hungry to responsibly explore new AI tools and workflows, finding ways to make your work smarter and more efficient.</li> </ul> <h3><strong>What we’re looking for</strong></h3> <ul> <li>Strong <strong>software engineering</strong> experience in at least one modern language (e.g., Go, Python, Java) and comfort working in Linux-based production environments.</li> <li>Hands-on experience <strong>designing and operating observability systems</strong> at scale (for exam ... (truncated, view full listing at source)