Senior Marketing Engineer (Web & Growth)

What you will accomplish:

• 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—in partnership with our Director of Growth Marketing, 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 so our properties are always well-positioned to perform. 
• 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: component libraries, templates, and publishing workflows that enable the team to build, ship, and iterate without an engineering ticket. This means evaluating current stacks, identifying gaps, and making the case for investment when the platform is holding us back. 
• Shape the platform roadmap—bring a technical point of view to how we invest in our web properties over time, including platform modernization and the tools that will help Marketing move even faster in the future. 
• Own ad operations across all properties—serve as the reliable, responsive point of contact for ad partner requests, including ads.txt, script tags, Prebid config, and GAM surface management. Ad revenue depends on this working well, and you'll make sure it does. 

Who you are:

What you bring:

• 7+ years building and maintaining marketing websites professionally—WordPress and/or Drupal experience required. Multi-brand or multi-property experience strongly preferred 
• 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 
• Bonus: PHP familiarity, hands-on experience with a headless or composable CMS (Contentful, Sanity, Storyblok) 

• Medical: In Tandem pays 100% of the premium for employees AND 99% for all additional family members 
• 401k: Up to a 4% match with immediate vesting 
• Paid leave for all new parents 
• Learning & Development stipend for employees 
• Paid Time Off: 11 Holidays + Winter Break (3 Days) + Volunteer Time Off (1 Day) + Floating Holiday (1 Day) 
• Personal Time Off: 15 days for 0--1 years of employment, 20 days for 1--3 years of employment 
• Supportive and flexible working environment -- work from anywhere!