AI Engineer (Growth / ClinicOS) at Aios Medical — Remote, €35k-€56k/yr inc equity

About Aios Medical

Our overarching mission is to accelerate the mass-market global adoption of consumer biotech products so every human can live at least 100 healthy years.

Our immediate focus is excess bodyweight. We are increasing the global accessibility of GLP-1 medications to accelerate their take-up to help solve obesity worldwide.

To do that, we’re building an AI-powered clinical operating system: ClinicOS. ClinicOS makes it effortless for consumer brands to easily offer direct-to-patient healthcare, globally. We work with external Brand Partners, as well as using this infrastructure to scale our own internal consumer healthcare brands.

Since we launched Fella Health in the US in June 2021, Fella has positioned itself as no-nonsense weight loss for busy bigger guys. Today, we operate multiple brands across the US & UK — our two biggest are Fella Health (US & UK) & Bolt Pharmacy (UK).

Our infrastructure will have served 100 million patients worldwide by 2035. We’ll then use that direct-to-patient infrastructure to serve next-gen biotech products at-scale to increase the proportion of humans living at least 100 healthy years.

In so doing, we’ll become the world’s first trillion dollar healthcare company.

How far along are we?

We’ve grown >1000x since Aug 2021, >200x since Aug 2022, >40x since Aug 2023. We’re serving >20k customers with high NPS. We’re >$50M/yr revenue. We’ve been cashflow positive for >24mo.

We’re a young startup and we’re just getting started. This is still Day 1 and all our work is ahead of us.

We're backed by top healthcare & consumer investors:

• Y Combinator

• Global Founders Capital — backed Facebook, Slack, LinkedIn, Revolut, Rocket Internet

• AngelList Early Stage Fund (backed by Naval Ravikant)

• BrandProject (venture-builder behind 2 unicorns)

• The founders of Indeed, Curative (unicorn), Alan (unicorn), Kaia Health (>$300mil valuation), Vouch Insurance (>$500mil valuation), Not Boring (Packy McCormick)

You can read more about working with us here: Working at Aios Medical https://fella.notion.site/working-at-aios-medical

The opportunity as AI Engineer

As AI Engineer at Aios, you’ll build the AI systems that power how we grow and how we serve patients. You’ll work with Gzim (Head of Engineering) and the rest of the team to design, build, and scale AI that removes manual work, improves accuracy, and makes our systems move faster.

You’ll work end to end: code, test, deploy, monitor, and improve.

You’ll focus on measurable impact and reliability, building systems that work in production and make our teams 10x more effective.

We’re hiring two people for this role, each with a different focus.

• AI Engineer: Growth

  • You’ll build AI tools that directly improve acquisition and conversion.

  • You’ll create voice and chat agents that engage users, automate lead capture and follow up, and design backend systems that keep these flows reliable.

  • Your work will help us reach more patients and hit our growth goals faster.

• AI Engineer: ClinicOS (CX / Operations)

  • You’ll build AI systems that make care delivery faster, safer, and more efficient.

  • You’ll automate key parts of our patient journey inside ClinicOS: image and document verification, prescription checks, evidence validation, and clinical copilots that support our medical team.

  • Your work will make it possible for us to serve thousands more patients at the same quality and speed.

This is a full time, fully remote role. You’ll work mostly async and collaborate until midday Pacific when needed. You’ll move fast, keep things simple, and build systems that deliver real impact across the company.

Key Responsibilities

You’ll build and own our AI systems across growth and operations. You’ll make things fast, reliable, and simple & build tools that remove bottlenecks, increase conversion, and scale how we work.

• Core AI infrastructure: Build and maintain the systems that connect LLMs to our stack. Set up evaluation, monitoring, and fallbacks that keep everything stable. Optimize cost, latency, and performance while keeping it easy to debug and deploy.

• AI-powered operations: Automate high-impact processes inside our platform from image and document checks to data validation and smart copilots that make our workflows more efficient. Build evaluation methods that ensure accuracy and reliability.

• AI-powered growth: Build AI tools that drive conversion & lead capture flows, chat and voice agents, and backend systems that automate our funnel. Track metrics like sign-ups, response time, and conversion rate to iterate quickly.

• Data and iteration: Measure everything. Ship, test, and refine weekly. Use clear metrics to decide what to scale, what to cut, and how to make every system perform better.

Need to Have

• Experience: 4+ years in software engineering with hands-on work in AI, backend, or systems.

• LLM Production: Proven experience shipping LLM applications — prompt design, RAG, fine-tuning, or evaluation.

• TS/Python: Strong coding skills in TypeScript and/or Python.

• APIs: Experience designing and building modern, reliable APIs.

• UI:Comfortable creating simple internal tools using React or similar.

• Ownership:Works independently and takes projects from concept to production.

• Evaluation:Understands how to test, monitor, and improve model performance in production.

Nice to Have

• Infra basics: Vector databases, embeddings, orchestration frameworks.

• Eval + monitoring: Built systems that track model quality and reliability.

• Data at scale: Experience with large data pipelines or distributed systems.

• Cloud: AWS or similar cloud experience.

• Automation: Experience with OCR, image processing, or document pipelines.

• CS background: Degree or equivalent.

• Open source: Public contributions or visible projects are a plus.

Our cultural standards

We aim to make this your life’s work. This should be the most challenging, most rewarding role of your life. Accordingly, these are the core cultural standards to which we hold ourselves & our team-members:

1. Belief in the mission: We will have served 100 million patients by the end of 2035 and we transform the life of most patients who join. We have a lot of work to do. We are obsessed with our patients and are dedicated to the mission.

2. Unwavering integrity: We are at the frontier, so we often live in ambiguity with no trodden path. When we can’t look to others for guidance, we must maintain impeccable ethics and unwavering integrity.

3. Only the paranoid survive: Bad sh*t is coming. By joining us, you’re choosing to sail straight towards the storms with unhesitating conviction. However much we’ve already done, however far we’ve already come — it’s still Day 1 and all our work is ahead of us.

4. If we’re average we fail: We are only interested in “insanely great”, a focus on the quality of our execution that in everyday life would be considered pathological. We have a dedication to excellence and reject incompetence.

5. Commitment to candor: That which can be destroyed by the truth should be. You get full transparency from the company and the company expects full transparency from you. We never say anything about someone that we wouldn’t say to them directly. We give feedback with love and do not need to protect people from fleeting physical sensations.

6. A maniacal sense of urgency: We execute at an intensity that most people think is impossible. Speed is critical and we need things done yesterday. We all work very hard and in such a competitive world there really is no other way to win.

7. Enduring frugality: We are frugal. We hate being wasteful and we are anti-luxury. A culture of cheapness keeps us young. We spend our cash wisely & carefully — in a way that would make our grandmas proud.

8. Bulldozing barriers: The world is malleable and we shape it. We truly believe this and act accordingly. We are relentlessly resourceful and are at the mercy of no-one but ourselves. You’ll be shocked how capable you are and how much you can achieve.

9. Keep your head down: We’re boring people doing exciting work. We don’t chase short-term status — we ignore short-term dopamine hits and focus on what matters. Outsiders will underestimate us and we revel in that.

10. The power of focus: We live in a world of power laws and we cannot overestimate the unimportance of practically everything. Know your One Thing, and nail it.

🎯 “You just build a fing amazing experience. Make each step amazing. Make every decision in the long term interest of the customer. Give the customer massively more value than you take.”*

Compensation & Benefits

• Compensation: €35k-€56k/yr inc equity

• Healthcare: comprehensive medical insurance (if appropriate).

• Remote: our team is fully distributed across the world and functions fully remotely.

• Personal development: budget for books, courses, coaching ($500/yr).

• Personal wellness: budget for gym, health apps ($500/yr).

• GLP-1s: free membership with a clinic offering GLP-1s.

• Health coaching: free biweekly health coaching so you stay healthy.

• Work coaching: free biweekly work coaching so you stay sharp + calm.

• Equipment: Macbook & work-from-home equipment provided as needed.

• What are we missing? We're still early so you get to shape our culture.

How to apply

1. Apply on Ashby or the platform you are in.

2. Email lorena+hiring@joinfella.com with:

   • Resume

   • LinkedIn

   • Github