Job Opportunities in the Seedcamp Portfolio

Prometheux is building the ontology-native infrastructure for operational AI. Reliable AI in enterprise faces two major problems:1. The model problem: Frontier models are probabilistic, unpredictably expensive, slow, and un-auditable for regulated industries. They are compilations of averages that don't understand your unique business logic — your competitive advantage.2. The data problem: Enterprise data is fragmented and means nothing without context. Multiple disconnected systems with inconsistent business definitions and siloed operational knowledge, pieced together by static dashboards and brittle pipelines.Prometheux turns business logic into executable ontologies that process data wherever it lives — across databases, warehouses, and cloud platforms — without migrations or duplication. Natively neurosymbolic AI:• The PX Engine handles deterministic logic and operational reasoning• LLMs handle language and intuitionWe're looking for highly motivated, self-starter Founding Marketing talent to define our brand and messaging, building a truly category-defining product and brand.What You'll Do• Help define the Prometheux brand and category narrative• Turn deeply technical concepts into clear, differentiated storytelling• Create high-quality content across LinkedIn, events, videos, presentations, demos, and campaigns• Run rapid experiments across growth and distribution• Work closely with sales, product, and engineering teams• Help drive awareness across enterprise AI, data infrastructure, ontologies, and agentic systems• Support launches, conferences, dinners, community events, and field marketing initiatives• Build unconventional marketing strategies that actually get attentionWho You Are• An exceptional communicator and storyteller with taste, speed, and strong creative instincts• Can simplify highly technical concepts without making them boring• Understands modern AI, data, and startup ecosystems• Thrives in ambiguity and moves quickly with minimal structure• Highly autonomous and execution-oriented• Cares deeply about quality and details• Uses AI heavily in your workflow• Strong plus: AI-native startups, Modern B2B SaaS, Developer tooling, Data or infrastructure, Creative agencies, or Independent builders and creatorsWhy Join Prometheux• High impact, high ownership — you'll be our first Marketing hire, your fingerprint will be all over the brand• We work between London, Rome, and San Francisco, staying close to those shaping the frontier of technology• You'll be at the cutting edge of data and AI, building products that don't exist yet