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CTO / Founding Engineer - Trigger (Computational Creativity)

  • On-site
    • Rotterdam, Zuid-Holland, Netherlands
  • Ventures

Job description

We HATE social media, but we LOVE studying people.

Trigger isn’t a scheduler and it doesn’t generate content. The world has enough of those.

Trigger is a computational creativity layer: it studies context and human behavior to explain why posts work, what to publish next, and how content will perform - improving social performance by understanding people, not by posting more.

Backed by Builders (AI-native venture studio) and working with leading social-driven companies as design partners. Trigger is pre-product, early validation stage with paying design partners.

The role

We’re looking for a Founding Technical Leader - someone who can be a Founding Engineer or CTO builder - to architect and build Trigger’s cognitive engine: the multimodal system that turns creative behavior into understanding.

You’ll work across:

  • multimodal AI (video, image, audio, text)

  • full-stack product engineering

  • context + knowledge modeling

  • insight + prediction systems

You’ll be building alongside Federico Motta (content psychology & narrative intelligence). Federico brings the why; you help build the how.

What you'll do

  • Design and build the core architecture of Trigger’s AI + product stack

  • Implement ingestion pipelines, embeddings, reasoning workflows, and APIs

  • Develop the early Context Graph connecting creative assets, signals, and outcomes

  • Ship the Insight & Prediction Engine - why content worked, what to do next

  • Rapidly prototype → harden → deploy a fast, beautiful product used by strategists and creators

  • (If senior/CTO level) Set engineering culture, own technical vision, and hire the first engineers

Job requirements

What we're looking for

  • You’ve built and shipped end-to-end AI products (web + AI layer)

  • Strong across backend and AI systems

  • Experience with multimodal models is a strong plus

  • Deep familiarity with RAG, vector DBs, graph thinking, semantics

  • Strong systems thinking: data pipelines, embeddings, infra, orchestration

  • Love for quick iteration, shipping, and problem-solving

  • Interest in storytelling, design, and human behavior

  • Founder-level ownership; comfortable in early-stage chaos

  • (If CTO profile) Ability to set technical vision, roadmap, and represent the technical thesis to investors

Indicative stack

  • Frontend: Next.js, TypeScript, React/Tailwind

  • Backend: TypeScript or Python (FastAPI/Node), tRPC

  • AI: LangGraph / LangChain, OpenAI / Anthropic

  • Data: pgvector / Weaviate / Pinecone, PostgreSQL, Neo4j

  • Infra: Vercel, Supabase, Railway, Cloudflare

Why this is exciting

  • Category creation: not analytics, not scheduling - cognitive intelligence

  • Hard AI challenges: multimodal context engineering

  • Immediate impact: direct access to top-tier design partners

  • Upside: early equity + genuine ownership (including co-founder equity for the right person)

How to reach out

Send a short note with what you’ve built (product, repo, demo) and why this problem grabs you. No formal cover letter needed.

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Contact us

Don’t hesitate to reach out with questions, comments, or just for a quick hello.

Join our ventures

Are you looking for a great place to work, be challenged, and learn from other bright minds?