Full Stack Engineer
Pubblicato il 03-10-2026 - Pillar in Milano
[Based in Milan or Barcelona Office]
Pillar was founded in 2025. Today, we are 80+ people, serve 900+ customers, raised €12 million in 2026, and are expanding internationally.
We are building the financial operating system for construction: bringing AI, automation, and modern software to an enormous industry still full of slow, fragmented processes.
We are looking for a product-minded Full Stack Engineer who leans backend, moves fast, and wants to build.
What you will do
- Own features end to end, from product problem to production.
- Build across our TypeScript codebase using Next.js, React, Supabase, Node/Deno, Postgres, and Mastra.
- Take strong ownership of backend logic, data models, APIs, integrations, and product architecture.
- Work hands-on on the frontend when needed, with a strong preference for engineers comfortable with Next.js.
- Use AI as a native part of your engineering workflow - not only as a feature you build.
- Work in small squads with high autonomy and bottom-up initiatives.
- Move quickly from ambiguity to working product,
making pragmatic technical decisions along the way.
- Raise the engineering bar through collaboration, judgment, and execution.
Our stack
- Product: Next.js · React · TypeScript
- Backend & data: Supabase · Node/Deno · Postgres
- AI: Mastra · AI-native workflows
Who we are looking for
Product engineers with backend depth and high agency
- You are a product engineer: you build outcomes, not just code.
- You are stronger on backend or genuinely full stack. Pure frontend profiles are not our priority for this hire.
- You are comfortable with Next.js, React, TypeScript, and modern backend/data patterns. Supabase experience is a strong plus.
- You have worked in a startup or scaleup environment and understand the pace, ambiguity, and ownership it requires.
- You take initiative, get your hands dirty, and get things done without waiting for perfect instructions.
- You are AI-native: AI is already part of how you think, bui