Founding CTO
Posted 9 Sept 2026The mission
Turn a founder-built platform into the infrastructure that runs offline marketing across countries.
What success looks like in your first 3 to 6 months
- The architecture and stack are ready for multi-country scale: a design you have documented, load-tested and defended, with reliability, security and cost under control.
- Native iOS and Android apps for Brand Missionaries are in crews' hands, with background GPS that survives a six-hour shift, offline resilience and photo proof.
- Campaign API v1 is live, so a client or an AI agent can plan and book a campaign without a human in the loop.
- The response dataset has a schema and a pipeline that turn every campaign into reusable intelligence.
- You have hired the first engineer and set the engineering culture: AI-assisted, shipped weekly, measured.
What you will own
- Architecture for scale: Next.js and TypeScript on Vercel, Supabase Postgres with row-level security, Mapbox, Resend and Anthropic. Ten cities today, several countries next.
- The Brand Missionary mobile experience: a web app today, native iOS and Android next.
- The campaign API and the data products built on our measured response dataset, the asset no competitor can copy backwards.
- AI across the engineering process, the way we already build: faster than the team size suggests, with the judgement to know what machines cannot do.
- Reliability, security and cost discipline in production. Our clients' campaigns run on this.
- The first engineering hires.
Required
- You have designed and run production systems that grew, and you can explain the trade-offs you made.
- Full-stack depth in TypeScript, Postgres and cloud, and you have shipped a mobile app to real users.
- You use AI tools every day and can show what they changed in how you ship.
- Bilingual in Spanish and English.
- You want a founding seat with equity, not a job title.
Nice to have
- Geospatial or mapping work (PostGIS, Mapbox).
- Experience with GPS tracking, offline-first apps or field operations tooling.
- You have been the first technical hire somewhere before.
Compensation
- Base salary €50k to €60k.
- 1.5% to 3% equity, four-year vesting, one-year cliff.
- Founding-team role reporting to the founder.