Manager, Growth Marketing

Manager, Growth Marketing

Extuitive is a Flagship Pioneering–backed startup reimagining product innovation for the AI era. Our mission is to empower entrepreneurs and direct-to-consumer (D2C) brands with AI-driven tools that simplify, accelerate, and scale the launch of new products. Based in Cambridge, MA, we operate like a special ops unit—fast-moving, data-driven, and relentlessly focused on impact.

The Role

We're seeking a creative, execution-focused Manager of Digital Marketing to build and optimize our full-funnel growth engine from the ground up. You'll own demand generation, paid acquisition, growth experiments, and martech infrastructure. This is an opportunity to shape our digital strategy, influence product–market fit, and drive exponential customer acquisition for AI-powered SaaS tools.

Key Responsibilities

Digital Marketing Strategy & Execution:

• Develop and oversee multichannel paid campaigns (Meta, TikTok, Google Search/Display, YouTube)
• Establish and manage awareness, acquisition, and onboarding funnels
• Build and iterate growth loops (referral programs, virality features)

Demand Generation & Lead Funnel Optimization:

• Design, launch, and test B2C campaigns targeting Shopify merchants and e-commerce brands
• Optimize cost-per-acquisition (CPA), customer lifetime value (LTV), and conversion rates through data-driven experiments
• Implement automated lead nurturing workflows using email, chat, and retargeting sequences

Go-to-Market (GTM) Campaigns:

• Partner with product, content, and sales teams to create and execute launch playbooks for new AI features
• Define target segments, messaging frameworks, and launch timelines
• Analyze post-launch performance and iterate rapidly

Analytics & Martech Infrastructure:

• Set up and maintain analytics stack (GA4, Mixpanel, HubSpot, GEO or equivalent)
• Track and report key metrics (CPL, MQL-to-SQL conversion, ROAS, churn)
• Develop dashboards and playbooks to inform strategic decisions

Experimentation & Optimization:

• Lead A/B and multivariate tests on landing pages, ad creatives, and email flows
• Prioritize test roadmap based on impact vs. effort
• Document learnings and scale winning experiments

Team Leadership & Collaboration:

• Grow and mentor a team of performance marketers and lifecycle specialists
• Align cross-functional teams (product, design, engineering, sales) on marketing initiatives
• Present regular updates to executive leadership

Professional Experience & Qualifications

• 6+ years of marketing experience focused on digital channels and go-to-market strategies for software/SaaS and consumer brands
• Proven track record developing and executing multi-channel digital campaigns (SEO, SEM, social media, email, content marketing, web analytics) that drive engagement and ROI
• Expert in paid acquisition & demand generation on e-commerce platforms (e.g., Shopify), including search ads, social ads (Meta, LinkedIn), programmatic DSPs, and retargeting workflows
• Experience with GEO (generative engine optimization)
• Proficient with marketing automation & CRM tools (e.g., HubSpot, Marketo, Salesforce Pardot) to architect scalable, personalized customer journeys
• Strong analytical abilities in Excel and BI platforms (Looker, Tableau) to conduct CAC/LTV calculations, cohort analyses, and funnel optimization
• Skilled at structuring digital channel partnerships, from platform integrations to affiliate and influencer programs, to expand reach and acquisition
• Hands-on with go-to-market & product-led growth campaigns, aligning marketing and product for successful launches
• Startup & early-stage SaaS background preferred, thriving in fast-paced, ambiguous environments
• Exceptional communicator & leader, with proven presentation, project-management, and cross-functional team coordination skills
• Advanced PowerPoint proficiency for crafting compelling performance reports and executive decks
• Creative thinker passionate about innovation, consumer-trend spotting, and applying generative AI to marketing initiatives

About Flagship Pioneering

Flagship Pioneering invents and builds platform companies, each with the potential for multiple products that transform human health, sustainability and beyond. Since its launch in 2000, Flagship has originated more than 100 companies. Many of these companies have addressed humanity's most urgent challenges: vaccinating billions of people against COVID-19, curing intractable diseases, improving human health, preempting illness, and feeding the world by improving the resiliency and sustainability of agriculture.

Flagship has been recognized twice on FORTUNE's "Change the World" list, an annual ranking of companies that have made a positive social and environmental impact through activities that are part of their core business strategies and has been twice named to Fast Company's annual list of the World's Most Innovative Companies. Learn more about Flagship at www.flagshippioneering.com.

At Flagship, we accept impossible missions to enable bigger leaps. Our core values guide us through uncertainty and toward lasting impact.

We are an equal opportunity employer. All qualified applicants will be considered for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, protected veteran status, or any other characteristic protected by law.

We recognize that great candidates often bring unique strengths without fulfilling every qualification. If you have some of the experience listed above but not all, please apply anyway. We are dedicated to building diverse and inclusive teams and look forward to learning more about your background and interest in Flagship.

The salary range for this role is $121,000 - $159,500. Compensation for the role will depend on a number of factors, including a candidate's qualifications, skills, competencies, and experience. Extuitive, Inc. currently offers healthcare coverage, annual incentive program, retirement benefits and a broad range of other benefits. Compensation and benefits information is based on Extuitive, Inc.'s good faith estimate as of the date of publication and may be modified in the future.