About LemonUp.dev

LemonUp.dev is an AI Builder for mobile app development – think Replit or Lovable, but built for end-to-end mobile development.

From prompt → working app → App Store / Play Store, LemonUp is the easiest way to go from idea to launch-ready mobile app.

We already have a working prototype and 300+ people on our waitlist and are in talks with a pre-seed investment fund.

Now we’re looking for a CTO co-founder to take the product from prototype to launch.

Who We Are

👨‍💻 Christoffer (Hacker-Hipster) – 2x founder, built & exited first startup, IT consultant.

📈 Kajeesan (Hustler-Hipster) – bootstrapped a tutoring company (40 students, 7 tutors), IT consultant.

Together we bring startup grit, business sense, and product vision. Now we need a technical partner to complete the team.

The Role: Founding CTO

You will:

• Own the build from prototype → product launch.

• Architect and scale the platform using Next.js, Node.js, Express.js, Supabase, and AI/ML integrations.

• Build the core AI workflows that generate and deploy mobile apps directly to stores.

• Work closely with Christoffer (product + tech) to ship fast and iterate with users.

• Shape LemonUp’s technical direction and culture as a founding team member.

  
  

What We’re Looking For

• Deep experience in AI-driven product development.

• Strong full-stack background (Next.js, Node.js, Express.js, Supabase).

• Understanding of mobile app development and deployment pipelines (iOS/Android).

• Entrepreneurial mindset – you thrive in 0 → 1 environments.

• Bonus: prior startup or co-founder experience.

  
  

What You’ll Get

• Founding CTO title + equity (big upside, early stage).

• The chance to define the future of mobile AI development.

• Work with two proven founders who know how to build, scale, and execute.

• Full ownership, speed, and creative freedom.

👉 If you’re excited to become our CTO co-founder, let’s talk.