Full-Stack Growth Engineer

About Us

The company is building a personalized guidance system for lifelong health. We help people understand what to do next for their body, goals, and stage of life — then support them in turning those decisions into sustained behavior change. By combining AI, human expertise, personal health data, and accountability, the company helps members improve performance today while building the resilience, capacity, and healthspan they need for decades to come.

About the Role

We’re hiring a Full-Stack Growth Engineer to build and maintain the product and systems that help more of the right people discover the company, convert into members, and reach their first moments of value.

You’ll work across web and backend surfaces that power acquisition, signup and access, onboarding and activation, and early engagement. You’ll ship experiments end to end, instrument funnels carefully, and partner closely with product, design, data, and marketing on a small, senior team.

This is a hands-on role. You’ll move between product judgment and system design, write production code, run trustworthy experiments, and turn learnings into durable product improvements — not one-off hacks.

What You’ll Own

• Acquisition and Conversion: Build and improve the web and product surfaces that introduce the company to prospective members and turn interest into signup. These include landing experiences, checkout and plan selection flows, and the instrumentation that shows where people drop off.

• Access and Onboarding: Simplify signup, login, account creation, and first-session activation. Remove friction, clarify value on Day 1, and help new members connect with coaching and get started quickly.

• Experimentation Systems: Design, ship, and analyze A/B and multivariate tests across the funnel. Partner with data to define metrics, guardrails, and experiment hygiene so we learn fast without polluting the product.

• Full-Stack Delivery : Implement features across frontend and backend — APIs, services, web UI, and the glue between growth surfaces and the core member product. Prefer clear ownership and fast iteration over brittle one-off paths.

• Measurement and Insight: Instrument funnels, cohorts, and activation milestones. Use qualitative and quantitative signal to find leverage, prioritize work, and explain why experiments won or lost.

• Reliability for Growth Paths: Keep high-traffic growth journeys fast, stable, and observable. Treat conversion-critical paths with the same engineering care as core product.

• Cross-Functional Partnership: Work tightly with product, design, data, and marketing. Translate growth hypotheses into shippable product work and bring engineering judgment into roadmap tradeoffs.

• AI-Assisted Development: Use coding agents and AI tools to speed up exploration, implementation, testing, and review. Apply engineering judgment to validate their output before it reaches members or prospects.

Who You Are

Experience and Background

• You have 6+ years of professional software engineering experience, including meaningful ownership of consumer growth, acquisition, activation, or conversion surfaces.

• You are strong full-stack: comfortable across modern web frontend and backend services, and able to ship an experiment from UI through API and data without waiting on another team for every layer.

• You have run growth experiments in production — A/B tests, funnel instrumentation, and iteration based on measured outcomes, not vibes alone.

• You understand customer journeys: segments, touchpoints, dropoff analysis, and how product changes move activation and retention metrics.

• You can debug across web UI, networking, backend services, analytics pipelines, and CI.

• You have partnered with product, design, and data (or marketing) to take ambiguous growth problems from hypothesis to shipped learning.

• You write clear, maintainable code and care about experiment integrity, observability, and long-term operability — not just shipping the next test.

• You use AI coding tools in your development workflow and know how to verify their output.

Domain Passion

You care about health, fitness, and helping people start — and stick with — better habits. You’re motivated by the craft of turning curiosity into membership and first value.

Working Style

• You bias to action, then measure. You ship small, learn, and compound.

• You raise concerns early and bring possible solutions when experiments or funnels look wrong.

• You share context, invite feedback, and keep partners aligned on metrics and tradeoffs.

• You take ownership from discovery through production support on the paths you ship.

• You balance growth urgency with product quality and member trust.

Nice to Have

• Experience at a consumer subscription, marketplace, or membership product where acquisition and activation were core to the business.

• Familiarity with HIPAA and other laws and regulations that apply to health products and services.

• Experience with paid acquisition landing systems, attribution, SEO/organic surfaces, lifecycle messaging, or referral loops.

• Experience building or evolving experimentation platforms, feature flags, or analytics instrumentation at scale.

• Experience with fitness, health, coaching, or other personalized consumer products.

• Prior work on expert tooling, internal operator workflows, or coach-facing surfaces that support member outcomes.

Compensation, Benefits & Life at the company

• Salary range: $200,000 - 230,000 / year + equity. The salary range is set based on multiple considerations including business needs, market demands, talent availability, experience, and unique skills and attributes. The base pay range is subject to change and may be modified in the future.

• Health coverage: All employees have access to comprehensive medical, vision, dental, and disability insurance + tax savings accounts

• 401(k) plan

• Flexible Paid Time Off

• Future Membership: Enjoy our platform for free!

• Health, Wellness & Development: Health and fitness monthly stipend contributes to our employees’ overall wellbeing, with access to a mental health platform, reimbursement for medical travel, and an annual learning & development stipend.

• Remote First: Employment eligible to employees located anywhere in the continental US. No travel required.

• Join a diverse, passionate & driven team of all backgrounds.

Life at the company

Equity: Meaningful equity package.

Health Coverage: All employees who meet eligibility requirements receive comprehensive medical, dental, vision, and disability insurance, plus tax-advantaged savings accounts.

Retirement: 401(k) plan.

Wellness: Monthly wellness stipend for fitness, recovery, and overall wellbeing, plus access to mental health resources and therapy support.

Flexible Time Off: Flexible PTO so you can rest, recharge, and take care of life outside of work.

Learning & Development: Annual budget for courses, conferences, coaching, and tools that help you grow in your craft.

Future Membership: Enjoy our platform for free.

Equal Employment Opportunities at the company

We are committed to building a future where every member of our community, is healthy, cared for, and advancing forward together. The company is an equal opportunity employer. We do not discriminate based on gender, ethnicity, sexual orientation, religion, age, civil or family status, disability or race.