Software Engineer, Growth at AIOS — Hybrid, €60k-€120k/yr inc equity
About the role
Growth-focused full-stack software engineer role at AIOS, responsible for building and optimizing funnels, experiments, and growth infrastructure to acquire and convert patients while leveraging AI tooling.
Responsibilities
- Own Conversion: Own funnels from first click to first purchase, and keep shipping until they convert.
- Ship Experiments at Pace: Build and run landing page, quiz, eligibility and checkout experiments weekly with a Funnel Conversion Lead and a Web Designer.
- Convert with Jesse: Build conversational funnels where the AI agent Jesse guides leads to starting treatment.
- Launch New Markets: Take new funnels from MVP to a converting V1, and accelerate launches.
- Own the Data: Ensure tracking, attribution and experiment results are reliable for growth decisions.
- Build the Growth Backend: Develop services, integrations and event pipelines behind the growth stack and internal tools for growth teams.
- Build to Last: Write clear, tested, observable software reusable across markets.
- Use AI as a Force Multiplier: Utilize Claude Code, Codex and other AI tools to increase speed and quality.
Qualifications
- 5+ years of professional software engineering experience, including at least 1 year working with Growth teams and shipping products used by customers.
- Full-Stack Engineering: experience across frontend and backend, APIs, services, queues and integrations.
- Growth Mindset: comfort with growth metrics (CPC, CAC, conversion rate, LTV) and decisions based on them.
- Experimentation: experience with A/B testing, event tracking or attribution systems.
- Engineering Quality: clear, tested, observable, maintainable software.
- Ownership & Judgment: proactive context gathering, risk signaling, responsibility for outcomes.
Skills
Benefits
- Healthcare: comprehensive medical insurance.
- Vacation: PTO with minimum 2 weeks per year plus national holidays.
- Personal development: budget for books, courses, coaching.
- Personal wellness: budget for gym and health apps.
- GLP-1s: free clinic membership.
- Equipment: MacBook and home-office gear provided as needed.

About AIOS
Building AI-native infrastructure for the next era of care.
Our overarching mission is to build the AI operating system for consumer healthcare - delivering end-to-end care with near-zero marginal human time. We believe the future of healthcare is automated, intelligent, radically lower cost, and built around the consumer. We believe biology is entering a golden age. We believe profitable, focused companies beat bloated ones. We're determined to get the humans out of healthcare - replacing slow, expensive, legacy workflows with software-driven care delivered at scale. We’ve started by building this infrastructure to power our own brands - including Bolt Pharmacy and Fella Health, among others. Today, that infrastructure is helping patients access life-changing treatment for excess bodyweight. Over time, we’ll extend it across many of the categories that will define the next era of healthcare. Our infrastructure will have served 100 million patients worldwide by 2035. We’ll then use that infrastructure to deliver next-generation healthcare products at massive scale. In doing so, we aim to build the world’s first trillion-dollar healthcare company.
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