TL;DR

We’re looking for Founding ML Engineers who will shape how we fine-tune, serve, and evaluate LLMs and frontier models in production - and help define what it means to build a truly lovable AI product.

Why Lovable?

• Change the world, literally: 2025 is the year AI works, and Lovable has the best AI full stack engineer product (According to industry veterans)
• Work, learn, have fun: We’re building the strongest technical team in Europe. You will shape our culture and be inspired in a place of exceptional talent density
• Build a unique network: Lovable is a global top AI brand that the world is eager to work with. You will meet and work with some of the most important people in tech
• Get autonomy & ownership: With lots of things being built, this is a unique opportunity to get ownership and have a true impact on our product
• Compensation: Lovable pays top of market cash and equity, and is committed to compensate better than any other company in Sweden on a performance basis

What we’re looking for

• You’re a senior ML engineer with deep experience training and deploying large language models
• You’ve developed engineering best practices having worked at globally leading tech startups and scale-ups
• You’ve shipped ML systems in production, with real users and real uptime
• You understand how to build fast and still care about reproducibility, monitoring, and model performance

Your responsibilities

• Work closely with product engineers to integrate models into real user-facing features
• Build retrieval pipelines, evaluation frameworks, and experimentation tools
• Push the limits of what’s possible with current open models, and help define what we should train next
• Stay up to date with the bleeding edge of LLM research, and know when (and when not) to apply it

Our tech stack We're building with tools that both humans and AI love:

• Frontend: React for lightning-fast interfaces
• Backend: Golang and Rust for serious performance
• Cloud: Cloudflare, Fly.io, Google Cloud Run, AWS, Terraform
• And always exploring what's next

How applying works

• Fill in a short form then jump on an initial exploratory call
• Complete a technical take-home exercise
• Dive deeper into your way of thinking during two technical interviews
• Join us for 1-2 days of trial work on-site if possible. We'll see how you tick and you get to meet the team & explore whether joining Lovable feels right for you.

About your application

• Please submit your application in English. It’s our company language so you’ll be speaking lots of it if you join
• We treat all candidates equally - if you are interested please apply through our application system