Software Engineer II - Editors

<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 Editors Team:</strong></p> <p>The Editors team is responsible for building common reusable components for the message editor. This team powers all the editors at Klaviyo. This team focuses on building intuitive and powerful interfaces to create highly customizable and dynamic content ranging from product feeds, real time event data, and more. This product area is core to Klaviyo’s continued success. </p> <p>As a Software Engineer II on the team, you’ll play a key role in designing and building scalable systems that power our editor experiences across all the editors. Partnering closely with product managers and technical product owners, you’ll help define scope, translate ideas into practical implementations, and build intuitive editing tools that delight our users. This role leans frontend, with a strong focus on crafting thoughtful, reusable components and seamless user experiences using technologies like TypeScript, React, Python, and Django. There are ample opportunities for growth given the scope of this role and the team’s central role in Klaviyo’s product.</p> <p>Over the past year, our team has enhanced the editor interfaces with impactful features that our customers love—and they’re eager to see that same power brought to other mobile experiences. Looking ahead, we’ll be investing in new editor blocks, a personalization builder, in-canvas editing, and content generation powered by AI. You’ll contribute directly to these efforts, helping Klaviyo extend its best-in-class editing tools across platforms.</p> <p><strong>How You Will Make a Difference:</strong></p> <ul> <li>You will be a core member of the Editors team, working on impactful customer-facing features that will make our product the best in the industry.</li> <li>You will work on creating easy-to-use editors that are highly performant.</li> <li>You will work closely with Product, Design, and Data Science to provide the best experience for our customers.</li> </ul> <p><strong>Who You Are:</strong></p> <ul> <li>Experienced in full-stack development with strong hands-on skills in React, Redux, JavaScript, HTML, and CSS, along with familiarity with general web best practices.</li> <li>Has a track record of delivering and shipping work powered by or accelerated through AI.</li> <li>3+ years of experience in a software engineering role</li> <li>Proficient in Python and Django (or similar backend technologies), and comfortable working across large codebases and multiple layers of the stack.</li> <li>Familiar with automated testing practices and frameworks, including end-to-end and integration tests (e.g., cypress, pytest).</li> <li>Experienced with RESTful and GraphQL APIs, and evolving APIs and data models to support product success.</li> <li>You take ownership of your work—from requirements and edge cases to implementation and testing—and are motivated by solving tough problems with others.</li> <li>Proven track record of leading complex, multi-quarter projects involving cross-te ... (truncated, view full listing at source)