By Jérémy Marquer, fractional CTO
A fractional CTO’s blog
What I apply as a fractional CTO, written for founders and tech teams: stack choices, MVPs, technical debt, security, hiring, fundraising and AI.
- AI & automation8 min read
How to reduce LLM costs in a startup: a fractional CTO playbook to cut spend without breaking the product
A practical framework to reduce OpenAI, Anthropic, or Mistral spend in startups through usage audits, prompt trimming, routing, caching, and ROI-based governance.
- AI & automation11 min read
Putting an AI feature into production: data, cost, GDPR, AI Act
Before you open an AI feature to customers: what data leaves, what each action costs, what GDPR and the EU AI Act require, and how to keep quality in check.
- AI & automation2 min read
Automate Your Startup Processes: AI, No-Code and Productivity Gains
How to automate startup processes with AI and No-Code? Complete guide for CTOs and founders: tools, ROI, use cases, pitfalls to avoid.
- AI & automation10 min read
Bringing AI into a small business: where to start, costs, risks
Where AI pays off in a small business, how to start with a single process, what it costs to run, and the risks to manage: data, errors and the EU AI Act.