Retention & Lifecycle Marketing Manager (Email, SMS & Web)

mBIOTA Labs is a clinically backed, women-owned and led medical nutrition company on a mission to transform how people think about - and treat - digestive health.

Our products sit at the intersection of healthcare, science, and consumer experience. We build therapeutic, nutrition-based solutions that are rooted in clinical research, shaped by patient needs, and designed to fit into real lives. Digestive health affects millions of people every day, and the work we do has a meaningful impact on quality of life for our customers and patients.

We’re a fast-growing startup, which means we move quickly, learn constantly, and operate with a high degree of ownership and collaboration. We’re building a team of thoughtful, curious humans who want to do impactful work while helping scale a company that’s redefining digestive health.

The Role
We’re looking for a hands‑on Lifecycle Marketing Manager to help run and scale our core lifecycle and owned channels - email, SMS, and website.

This role is based in our Santa Monica office and works in person with the broader marketing team.

We’re looking for a highly hands‑on Retention & lifecycle Marketing Manager to help scale and optimize our core owned marketing channels - primarily email, SMS, and web.

This role will focus on improving customer acquisition, conversion, retention, and lifetime value through thoughtful lifecycle marketing, testing, segmentation, and customer journey optimization. Email marketing will be the primary focus of the role, with SMS and web supporting the broader customer experience.

This is a hands‑on role for someone who enjoys both execution and optimization - building campaigns and flows, analyzing performance, running tests, and continuously improving results across owned channels. You’ll partner closely with leadership to execute, refine, and improve our lifecycle marketing strategy over time through experimentation, customer insights, and data‑driven decision making.

What You’ll Do
Own and optimize lifecycle marketing performance

Execute and optimize lifecycle marketing campaigns and automated flows across email and SMS

Build and manage customer journeys including welcome, abandoned cart, post‑purchase, replenishment, winback, and nurture flows

Analyze lifecycle performance across key metrics including open rate, click‑through rate, conversion rate, retention, revenue per send, and lifecycle revenue contribution

Monitor and report on key lifecycle KPIs including retention, repeat purchase rate, revenue per recipient, unsubscribe rate, and customer lifetime value

Own regular lifecycle reporting and communicate performance insights, testing results, and optimization opportunities to leadership on a weekly/monthly basis

Identify opportunities to improve customer engagement, conversion, retention, and lifetime value

Run A/B tests across messaging, segmentation, timing, creative, and offers

Use customer behavior and campaign insights to continuously improve lifecycle performance

Execute campaigns across owned channels

Build and launch email campaigns and flows across Klaviyo and HubSpot

Execute campaigns for both direct‑to‑consumer and provider/physician audiences

Partner closely with creative and content teams to develop campaign assets and messaging

Ensure campaigns are properly segmented, targeted, tracked, and measured

Support website and conversion initiatives

Launch and update landing pages to support campaigns and growth initiatives

Support website merchandising and customer journey improvements across Shopify and/or Squarespace

Contribute to conversion rate optimization (CRO) efforts to improve onsite performance

Collaborate cross‑functionally

Work closely with growth, creative, operations, and leadership teams to launch campaigns and initiatives

Support lifecycle touchpoints tied to broader acquisition and retention initiatives

Partner with sales and leadership teams on broader provider marketing communications through HubSpot

Who You Are

3–5 years of experience in lifecycle marketing, retention marketing, email marketing, or ecommerce marketing

Strong hands‑on experience building and managing lifecycle campaigns and automated flows in Klaviyo strongly preferred

Experience working within Shopify ecommerce environments required

Strong analytical mindset and comfort interpreting campaign and customer data to improve performance

Comfortable owning both strategy execution and day‑to‑day campaign operations in a fast‑paced startup environment

Strong understanding of customer journeys, segmentation, testing, and retention marketing principles

Ability to identify priorities and opportunities in a fast‑paced startup environment with evolving needs and limited resources

Organized and detail‑oriented, with the ability to manage multiple campaigns and priorities simultaneously

Curious, proactive, and eager to grow into greater ownership over time

Located within commutable distance to Santa Monica, CA (4 days/week in office)

Nice to Have

Experience in supplements, pharmaceuticals, healthcare, or health/wellness industries

Basic HTML/CSS knowledge

Experience with CRO and landing page optimization

Familiarity with subscription or replenishment‑based ecommerce businesses

What We Offer

Salary Range: $90,000 – $110,000, depending on experience and fit

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