Founding Engineer

Moonfire; Zürich; On-site; CHF 150,000 - 210,000; Full time

Job summary

Moonfire is seeking a Founding Engineer to help lay the foundation for the Bloom tech stack. Depending on fit, you may become CTO, shaping the future of our company and unlocking the creator economy for software.

You will work closely with an ambitious founding team to design scalable architecture using TypeScript, and you’ll own meaningful areas of the platform as we move from prototype to production. This is a hands-on build-at-risk role in a fast-growing startup.

Qualifications

• Strong experience with TypeScript and mobile app tooling.
• Ability to thrive in a founding team and own engineering vision.
• Willingness to grow into CTO and shape company tech.

Skills

Typescript

Fast learner

High agency

Builder empathy

Sunday coding

Tools

RAG

Finetuning

Evals

AI SDK

Job description

We are looking for a Founding Engineer to join us in laying the foundation for the technical infrastructure of Bloom. Depending on the fit, you may become our CTO. You'll be shaping the future of our company and our vision of unlocking the creator economy for software.

Core traits about you:

• Your eyes light up when you think about coding on Sunday morning
• You have high agency and care about builders/people trying to build mobile apps
• You are a fast learner, with an open mind
• You are very familiar with Typescript

Bonus points:

• You have worked with (coding) agents extensively
  • RAG
  • Finetuning
  • Evals
  • Know the AI SDK in and out
• You have experience with Expo/React Native and/or building mobile apps
• You are a React beast
• You have experience with Convex
• You have worked at a YC startup before or founded a startup yourself
• You’ve built something with Bloom

Open problems:

• Build a reliable/world-class coding agent that builds full-stack apps
  • How do we imbue design taste?
  • How do we evaluate our agent?
  • How do we make our agent fast?
  • How do we reliably build features like auth, payments, etc?
  • How do we deal with data migrations?
  • How do we fine tune our agent?
  • How do we automatically test the quality of the app?
• Build tools that give users granular control and understanding of front-end, backend and back-office (application data)
• Build tools that give users insights on how their apps are being used
• Build internal tools to help us operate efficiently (internal agents) and to understand how our app is being used.
• Build tools that let people share native mobile apps easily