Senior Marketing Engineer (Web & Growth)

In Tandem is a company focused on building technology that helps families manage everyday routines and navigate life's transitions. They are seeking a Senior Marketing Engineer who will be responsible for owning web analytics and tag management infrastructure, building landing pages, and maintaining the technical health of their web properties.

Responsibilities:

• Build and own our web analytics and tag management infrastructure
• Implement Segment events, conversion pixels, and ad partner tags, and maintain the GTM foundation to add tracking and measurement without traditional engineering dependencies
• Build and ship landing pages and campaign assets—develop and deploy pages that support paid and organic campaigns, and build the component systems that make future work faster
• Drive CRO and experimentation—set up and run A/B tests across our properties to improve conversion rates, and partner with Marketing to turn results into better experiences
• Maintain the technical health of our web properties—own technical SEO, site performance, structured data, and Core Web Vitals across all three brands
• Evolve our CMS and publishing infrastructure—own the CMS platforms across our three brands and build the infrastructure that makes Marketing genuinely self-sufficient on the web
• Shape the platform roadmap—bring a technical point of view to how we invest in our web properties over time
• Own ad operations across all properties—serve as the reliable, responsive point of contact for ad partner requests

Requirements:

• 7+ years building and maintaining marketing websites professionally—WordPress and/or Drupal experience required
• Strong working knowledge of Google Tag Manager and at least one CDP (Segment, mParticle, or similar)
• JavaScript proficiency sufficient to build components, debug integrations, and write custom GTM tags
• Experience with AI-assisted tooling in the marketing context: web development, analytics, and just-in-time problem solving to address challenges across a diverse landscape of tools, data, and tech
• Hands-on A/B testing experience with Optimizely, VWO, LaunchDarkly, or equivalent
• Technical SEO fundamentals—you know what a sitemap is, why schema markup matters, and how to read a crawl report
• Clear, confident communication with non-technical stakeholders; you translate between Marketing's goals and technical execution without being asked
• Multi-brand or multi-property experience strongly preferred
• Bonus: PHP familiarity, hands-on experience with a headless or composable CMS (Contentful, Sanity, Storyblok)