Lead Software Engineer - Test Frameworks and Tooling Team

<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><strong>Why You Should Join the Test Frameworks and Tooling Team</strong> </p> <p>Engineering confidence is our primary product. We are not testers, but rather infrastructure architects building the sophisticated automation and CI/CD frameworks that make deploying to production a non-event. As the Lead for this team, you will define the technical roadmap for our automated guardrails and repository standards, empowering every engineer in the company to ship at terminal velocity with total confidence. By architecting the foundational tools that guarantee production readiness, you will play a pivotal role in driving Sev-1 incidents toward zero and ensuring our organization can move fast without the fear of breaking things.</p> <p><strong>What You'll Achieve: Key Responsibilities</strong></p> <p>As the technical leader for this team, you will drive the evolution of our testing ecosystem and mentor other engineers in the craft of quality engineering:</p> <ul> <li><strong>Define Architectural Vision:</strong> Lead the long-term strategy for our integration and E2E testing frameworks across both backend and frontend stacks. You will ensure these systems are not just reliable, but world-class in their ease of adoption.</li> <li><strong>CI/CD Strategy:</strong> Architect how we execute tests within our CI system. You will focus on radically optimizing feedback loops so that engineers receive actionable, high-fidelity results in minutes.</li> <li><strong>Set Engineering Standards:</strong> Establish the "golden paths" for our repositories. You will define the benchmarks for unit testing, code quality metrics, and systemic reliability that all teams will follow.</li> <li><strong>Scalable Tooling Coverage:</strong> Design and build the next generation of tools that simplify complex testing scenarios. You will lead efforts to backfill testing gaps at scale through advanced data mocking and service isolation.</li> <li><strong>AI-Driven Quality Strategy:</strong> Spearhead our efforts to leverage AI within the testing lifecycle. You will identify and implement AI-powered solutions for automated regression detection, flaky test analysis, and intelligent test generation.</li> <li><strong>Cross-Functional Leadership:</strong> Act as a consultant to feature teams to solve their most complex stability challenges. You will use root-cause analysis from major incidents to propose and implement pillar-wide safety improvements.</li> <li><strong>Operational Excellence:</strong> Oversee the health and performance of our entire CI/CD pipeline, taking ultimate responsibility for the stability of the environment that hundreds of engineers rely on daily.</li> <li>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 Makes This Role Exciting</strong></h3> <ul> <li><strong>High-Leverage Leadership: ... (truncated, view full listing at source)