Software Engineer II (Mobile Developer) - Mobile App Growth
KlaviyoBoston, MAPosted 24 February 2026
Tech Stack
Job Description
<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 Mobile App Growth team</strong></p>
<p>The Mobile App Growth team, a diverse group of accomplished engineers, focuses extensively on developing new, greenfield projects within the mobile application domain. Their work is cross-functional, spanning various mobile platforms, and includes developing full-stack solutions to support product features exposed to mobile users via our SDKs.</p>
<p>Over the past year, the Mobile App Growth team at Klaviyo has introduced new mobile-first features (like geofencing and in-app forms) and enhanced Klaviyo’s mobile integration offerings. This expansion has augmented the scope of the team’s responsibilities. With new products to cultivate and integrations to support, the team requires a highly capable software engineer to help manage the increasing demands within Klaviyo's mobile ecosystem.</p>
<p>This engineer will contribute to the expansion and maintenance of the team’s mobile SDK offerings, furthering current product features and extending Klaviyo’s reach beyond traditional email marketing into comprehensive mobile engagement.</p>
<p><strong>How You'll Make an Impact</strong></p>
<ul>
<li>You will be a core member of the Mobile App Growth team, working on impactful mobile experiences making mobile integrations a core pillar of Klaviyo’s offerings</li>
<li>Work closely with product to provide the best experience for our customers.</li>
<li>Take ownership of projects from inception to release.</li>
<li>Work across different mobile technologies</li>
<li>Work in the Django framework to help build out a pipeline for rendered mobile experiences. </li>
</ul>
<p><strong><em><br></em></strong><strong>Who you are</strong></p>
<p><strong>Deep experience modern mobile development (either Android, iOS or cross-platform experience) </strong></p>
<ul>
<li>Open to working with different technologies: Python, React, AWS, GoLang (prior experience not required but nice to have)</li>
<li>Have a proven track record of leading projects and collaborating well with the wider team</li>
<li>Experience working with mobile webviews and location services.</li>
<li>Comfortable leveraging AI technologies effectively in personal contributions.</li>
<li>Self-starter - As the member of the team, we are looking for someone who can bring with them expertise in mobile development.</li>
<li>Adaptability - We will be working not just in native SDKs but also backend and frontend Klaviyo stacks, dev tooling and possible expansion into tertiary SDKs in the future.</li>
<li>Ambition - We are looking for people that can take an idea and have the ambition to headline it in the future.</li>
<li>Learning - To be always learning is a core value at Klaviyo and this role will require someone excited to learn new technologies and expose themselves to new approaches</li>
</ul>
<p><br><strong>Technologies We Use (not exhaustive)</strong></p>
<ul>
<li>iOS (Swift)</li>
<li>Android (Kotlin)</li>
<li>React Native</li>
<li>Flutter</li>
<li>React, TypeScript, R ... (truncated, view full listing at source)
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