Senior Fullstack Developer at 42Lab.co, building profitable AI SaaS products in a fast-paced environment. Collaborates with entrepreneurs to turn visions into successful SaaS solutions.
Responsibilities
We turn brilliant ideas into profitable AI SaaS products—in 42 days flat. We are not an agency. We are builders obsessed with speed of execution and technical excellence. Every month we bring new SaaS products to life for well-known entrepreneurs who refuse to let their ideas die in a Notion. We're looking for a developer who understands that every line of code should generate business, not technical ego. If you want to ship clean code at a pace others call impossible, in a culture where only results matter, this opportunity is for you.
Requirements
3+ years of fullstack development experience with production products
Strong mastery of Next.js, React, and TypeScript
Solid experience with PostgreSQL and serverless architectures
Proven ability to integrate AI APIs (OpenAI, Claude, embeddings, etc.)
Full autonomy: you understand a business need and turn it into a technical solution without hand-holding
Obsessed with shipping: you prefer working code in production over perfect code on localhost
Direct communicator: you can explain technical concepts to non-technical stakeholders
Benefits
Maximum impact: your lines of code become real SaaS products
Modern stack: always the latest technologies, zero technical debt, complete technical freedom
No-bullshit culture: no pointless meetings, no corporate processes—just shipping
Elite team: work with A-players who challenge you and help you grow
Attractive compensation: competitive package + bonuses tied to the success of the SaaS you build
Long-term vision: potential to evolve into a Lead Dev role
Ultra-fast hiring process: 30-minute fit call, technical test, final interview, decision within 48 hours
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