
Fella is a men’s Health Repair System personalizing treatments with science, to help you lose weight for good. Backed by Y Combinator
2 - 10 employees
November 4

Fella is a men’s Health Repair System personalizing treatments with science, to help you lose weight for good. Backed by Y Combinator
2 - 10 employees
• 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. • Build and maintain the systems that connect LLMs to our stack. • Set up evaluation, monitoring, and fallbacks that keep everything stable. • Automate high-impact processes inside our platform from image and document checks to data validation and smart copilots. • Build AI tools that drive conversion & lead capture flows, chat and voice agents, and backend systems that automate our funnel. • Measure everything. Ship, test, and refine weekly.
• 4+ years in software engineering with hands-on work in AI, backend, or systems. • Proven experience shipping LLM applications — prompt design, RAG, fine-tuning, or evaluation. • Strong coding skills in TypeScript and/or Python. • Experience designing and building modern, reliable APIs. • Comfortable creating simple internal tools using React or similar. • Works independently and takes projects from concept to production. • Understands how to test, monitor, and improve model performance in production.
• comprehensive medical insurance (if appropriate). • budget for books, courses, coaching ($500/yr). • budget for gym, health apps ($500/yr). • free membership with a clinic offering GLP-1s. • free biweekly health coaching so you stay healthy. • free biweekly work coaching so you stay sharp + calm. • Macbook & work-from-home equipment provided as needed.
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