John Francis

Technical Partner for AI Engineering & Scale-up Architecture

Ex-Google Senior SWE (10 years) & Founder. Based in Switzerland. I build pragmatic, high-availability systems—from rapid MVPs to web-scale AI architectures. I respect your runway and focus on delivery, not over-engineering.

I don't sell strategy decks. I deliver code.

I remain a hands-on engineer. Whether it’s architecting a multi-agent AI system or refactoring a brittle legacy codebase, I am in the repo, delivering code that scales. I build only what you need to grow today, while laying the architectural rails for tomorrow.

Advanced Systems

AI & Agentic Engineering

Find the path from a fast Python proof-of-concept to a robust, containerized enterprise service. The AI peaks of modern computing can be truly majestic. I design and deploy production-grade intelligent systems using RAG, multi-agent orchestration, and human-in-the-loop guardrails.

AI Engineering & Agents
AI Engineering
Infrastructure & Growth

Architecture for Scale-ups & SMEs

Helping businesses navigate the traps of vendor lock-in and technical debt, helping startups grow with stability and surety. I provide system audits, tech-stack modernization, and fractional technical leadership, because stable infrastructure means freedom to explore.

Scaling & Systems Audit
Scaling Architecture
Product Delivery

Pragmatic MVP & '0 to 1' Engineering

Ready for takeoff with rapid, high-quality engineering. I focus on speed-to-market using modern stacks (Next.js, TypeScript, Python) while ensuring the foundation is secure and ready for investor-grade scrutiny.

MVP & Product Engineering
MVP Engineering

The Siosight Edge: Google-Tier Scale + Bootstrap Grit

10 Years at Google

Senior SWE architecting high-traffic C++ RPC servers and global data pipelines for YouTube and Google Shopping. I know what 'built for billions' looks like.

Bootstrapped Founder

Co-founded and scaled an early e-commerce startup to $3M annual revenue. I understand runway, ROI, and the need for pragmatic solutions that work today.

Beyond the Terminal

Based in Zürich. Private Pilot. Mountain enthusiast. I bring the same precision to your codebase that I bring to a flight plan over the Alps.

Ready to de-risk your roadmap?

Book a 30-minute technical discovery call to discuss your project.

Book 30-Minute Discovery Call