Martech Engineer Jobs in Santa Rosa, CA (NOW HIRING)

Block is one company built from many blocks, all united by the same purpose of economic empowerment. The blocks that form our foundational teams - People, Finance, Counsel, Hardware, Information Security, Platform Infrastructure Engineering, and more - provide support and guidance at the corporate level. They work across business groups and around the globe, spanning time zones and disciplines to develop inclusive People policies, forecast finances, give legal counsel, safeguard systems, nurture new initiatives, and more. Every challenge creates possibilities, and we need different perspectives to see them all. Bring yours to Block.

The Cash App Engagement Marketing team builds deep, personalized relationships with our customers across their entire lifecycle, from sign-up through long-term habituation. We operate at the intersection of growth strategy, lifecycle execution, and product, and our work directly shapes how millions of customers discover Cash App, build daily habits with the product, and grow with us over time.

We're looking for an Growth Manager focused on activation and habituation. This is not a traditional lifecycle marketing role. The shape of engagement marketing is changing fast. Personalization, AI decisioning, and in-app surfaces are reshaping how the work gets done, and this role sits at the front of that change. The candidates who thrive here bring analytical depth and an experimentation reflex alongside their marketing instincts.

You'll work as part of a tightly integrated cross-functional team alongside Product, Engineering, ML, Design, and Analytics counterparts, chartered to drive conversion, activation, and habituation across the full Cash App customer journey. You'll operate more like a growth strategy owner than a campaign marketer: diagnosing funnel friction, sizing opportunities, designing rigorous experiments, and shipping fast. The experiments you run won't just shape our communications. They'll directly influence what gets built next.

• You'll run experiments at the scale of one of the largest consumer fintech audiences in the world. Signal density is unusual and learning compounds fast.
• Because you're embedded with Engineering and Product Design partners, your experiments shape not just our communications but also our app experience.
• You'll help define what engagement marketing looks like when comms decisioning is increasingly AI-driven. Every experiment you run feeds, and is shaped by, the AI and automation stack we're building.

• Own activation and habituation outcomes end-to-end: define the opportunity landscape across the customer journey, set strategy, prioritize ruthlessly, and deliver measurable business impact
• Operate as a peer to Product, Engineering, ML, and Design. Your experimentation learnings shape the product roadmap, not just the comms calendar
• Run a high-velocity experimentation program across onboarding, post-onboarding upsell, contact opt-in, churn prevention, behavioral notifications, real-time intervention journeys, mobile wallet adoption, referrals, retention, and winback
• Build and maintain a unified opportunity framework where every test is scored against expected impact and effort, prioritized agnostic of product or surface
• Self-serve sophisticated analysis: sizing opportunities, diagnosing funnel friction, reading experiment results, and iterating without reliance on dedicated analytical partners. SQL fluency and data modeling intuition are core to this role
• Push the frontier on AI decisioning and automation, and help define how engagement marketing evolves as AI moves further into the comms decisioning layer
• Influence cross-functional strategy across Product, Analytics, Martech, Creative, and Brand, operating as a true peer of these teams, not a downstream of them

• 5+ years of experience in growth marketing, lifecycle marketing, CRM, growth strategy, business operations, growth product, or a consumer-facing analytical roleA track record of owning a growth area end-to-end, opportunity through measurable impact, with multiple cross-functional stakeholders
• Strong analytical self-sufficiency. You can size an opportunity, build an impact model, and diagnose a funnel from first principles, without waiting on analytical support. Experience with data modeling or opportunity sizing frameworks required; proficiency with SQL and data visualization platforms (e.g. Tableau, Looker, Mode) strongly preferred
• Deep experimentation experience. You know how to build an experiment backlog, design rigorous tests, and use results to drive compounding improvements
• Hands-on experience with a CRM or marketing automation platform (e.g., Braze, Iterable, Salesforce Marketing Cloud), or strong reason to believe you'd ramp on one fast
• Fluency with AI tools as a core part of how you work, with the ability to automate, accelerate, and scale output in ways that set a new standard for the team
• Clear, structured, takeaway-first communication. You can translate complex analysis and ambiguous situations into crisp strategy and actionable recommendations

• Experience with onboarding, activation, or referral programs specifically
• Familiarity with regulated or trust-sensitive products (e.g., fintech, financial services, or healthcare)
• Experience with incentive mechanics or in-app personalization

• Braze, Iterable, or similar CRM and marketing automation platforms
• Mode, Tableau, or similar reporting and analytics frameworks
• SQL for self-serve analysis and opportunity sizing
• AI tools (Claude Code, Goose, or others) for strategy, execution, and automation

We're working to build a more inclusive economy where our customers have equal access to opportunity, and we strive to live by these same values in building our workplace. Block is an equal opportunity employer evaluating all employees and job applicants without regard to identity or any legally protected class. We will consider qualified applicants with arrest or conviction records for employment in accordance with state and local laws and "fair chance" ordinances.
We believe in being fair, and are committed to an inclusive interview experience, including providing reasonable accommodations to disabled applicants throughout the recruitment process. We encourage applicants to share any needed accommodations with their recruiter, who will treat these requests as confidentially as possible. Want to learn more about what we're doing to build a workplace that is fair and square? Check out our I+D page.

While there is no specific deadline to apply for this role, U.S. roles are typically open for an average of 55 days before being filled by a successful candidate. Please refer to the date listed at the top of this job page for when this role was first posted.