Founding Software Engineer

IMPORTANT NOTICE: CANDIDATES MUST BE LOCATED AND HAVE WORKED WITH COMPANIES IN GERMANY

• Location: Berlin, Germany
• Work Policy: On-site; 0 home-office days; relocation support offered
• Work Experience: Minimum 3 years of experience
• Language Requirement: English C1
• Employment Type: Full-time
• Tech Skills Required: Full Stack Development, React.js, GCP, AWS, TypeScript, PostgreSQL, Next.js
• Industry: AI Motion Design/Video Technology
• Positions Available: 1

Company Mission

Video is the most effective medium, but video creators waste countless hours animating seconds of content. Motion design tools like After Effects require mastering complex user interfaces, turning creative work into button-clicking hell. We're starting with motion design because it's the most painful and expensive part of video creation.

They are the first AI motion designers that create professional animations through conversation. Unlike video-gen tools, they generate code-based animations where every parameter can be fine-tuned through prompts or on-canvas editing, giving users the control of After Effects with the simplicity of Lovable.

Tasks

• Partner with the founders to deliver user-centric product solutions from concept to production
• Own end-to-end development of full-stack features with scalable architecture design
• Build and optimize agentic LLM systems incorporating tool-calling, multi-step reasoning, and MCP protocols
• Design comprehensive LLM evaluation frameworks with automated benchmarks, human-in-the-loop validation, and A/B testing
• Optimize LLM inference performance, cost efficiency, and latency across multiple model architectures
• Develop a high-performance motion graphics engine
• Drive architectural decisions that support scalable growth to millions of users

Requirements

Tech Stack: Their technology choices evolve with their needs. Current core technologies include TypeScript, React.js, Next.js, PostgreSQL, GCP/AWS, and their proprietary motion graphics engine. They prioritize learning velocity, end-to-end delivery, and adopt new languages or frameworks when they best serve their users and product goals.

What Makes You a Great Fit

• You're hungry. Not just ambitious, but obsessed with building something massive
• You're entrepreneurial. You've built things before and demand ownership
• You thrive in ambiguity. No roadmaps, no PMs, just problems to solve
• You have a growth mindset. They're small today but building something huge. To grow the company, each of us needs to grow personally
• You work like an athlete. High performance, consistent improvement, whatever it takes to win
• You want to work in-person in Berlin (we help you relocate if needed)
• They hire for slope, not intercept. They don't care about credentials; they care about trajectory

Benefits

They're building this team like Real Madrid: small, elite, with each person being a superstar. They believe they can reach a $100M ARR with less than 20 people. As a founding engineer, you'll have:

• Life-changing equity stake
• Above-market salary
• Build a product used by thousands daily
• The chance to redefine how millions of users create video

This is a YC-backed founding role with real equity; build a consumer AI product from scratch; direct influence on tech & culture; competitive comp; work closely with visionary founders in Berlin.