Leo Hösl
/
Announcing partnership with Netlify

Let's build

Magical Machines

I partner with ambitious teams to ship, rescue, and scale products — from MVPs to AI-powered platforms.

I build high-performing web platforms that bring brands to life in the digital realm. Based in Munich, I specialize in crafting stunning experiences for individuals and organizations, both locally and globally.

Showcase

Safeguarding Business Results of one of Canada's Largest eCommerce Brands: Enhancing Stability with Monitoring, Redundancy, and Automated User Flow Testing
Case Study

Safeguarding Business Results of one of Canada's Largest eCommerce Brands: Enhancing Stability with Monitoring, Redundancy, and Automated User Flow Testing

AI virtual model fashion shot
Project
COMPRESS98% Smaller
UPSCALE4x Enhancement
EXPORTAll Platforms

pixel harbor

AI-Powered Image Pipeline

The Complete Product Image Pipeline

Upload once, automate everything, export everywhere.

pixelharbor.io

Client

Global e-commerce for a sustainable solar lamp brand

27 countries/6 currencies
sonnenglas.netNext.js / Stripe / Hygraph

Star Stack

Project
EU Software Sovereignty

Audit your stack.
Support European sovereignty.

See which tools in your stack are EU-made. Support digital sovereignty, one dependency at a time.

starstack.eu

MODELALERT.AI

Project

No fluff alerts for AI model releases.

Select what you care about. Get notified when new models ship.

Anthropic•Claude Opus 4
Jan 27, 2025
  • •Extended thinking with streaming
  • •200K context window
  • •New benchmark scores on SWE-bench

OpenAI · Anthropic · Google · Meta · Mistral · xAI

Designing Pathways to Profit: kattbjoern's Ecommerce UX Evolution
Case Study

Designing Pathways to Profit: kattbjoern's Ecommerce UX Evolution

From Mont Blanc to The New York Times: Paige McClanahan's Digital Evolution
Case Study

From Mont Blanc to The New York Times: Paige McClanahan's Digital Evolution

Services I Offer

Marketing Websites

Polished & highly performant frontends systematically built around your goals.

Ecommerce Platforms

Seamless shopping experiences powered by cutting-edge technologies.

Web Applications

Next-gen web apps tailored for impeccable performance and versatility.

Optimization

Targeted Refinements for Peak Performance

Technology Partnership

Amplifying growth and innovation through strategic collaboration.

Maintenance Retainers

Swift and reliable support for continuous platform excellence.

Monitoring & Automatic Testing

Vigilant monitoring and seamless quality assurance for digital success.

Consulting

Guidance in pivotal moments and data-guided strategies.

Services V2: Focused Accordion

Services

01

Platform Rescue & Stabilization

Your platform is live. Revenue is flowing. Something breaks. I fix it without taking you offline.

02

Headless Commerce Architecture

Multi-market, multi-currency storefronts built on modern headless architecture.

03

AI Integration & Product Development

Production-grade AI integration. Not chatbot wrappers.

04

Performance & Technical Optimization

Measurable improvements to speed, stability, and search visibility.

05

Technical Strategy & Consulting

Architecture decisions, technology choices, team leadership.

Services V2 Alt: Horizontal Carousel

Services

01

Platform Rescue & Stabilization

Your platform is live. Revenue is flowing. Something breaks. I fix it without taking you offline.

  • Emergency incident response and root-cause analysis
  • Zero-downtime deployments and rollback strategies
  • Legacy codebase stabilization and dependency upgrades

Resolved a critical checkout failure for a multi-brand Shopify Plus merchant within 4 hours of first contact.

02

Headless Commerce Architecture

Multi-market, multi-currency storefronts built on modern headless architecture.

  • Composable storefronts with Next.js, Hydrogen, or custom frameworks
  • Multi-market setups with localized pricing, language, and fulfillment
  • Platform migrations from monolith to headless without revenue interruption
  • API orchestration across commerce, CMS, search, and payment providers

Architected a 12-market headless storefront serving 3M+ monthly sessions across EMEA.

03

AI Integration & Product Development

Production-grade AI integration. Not chatbot wrappers.

  • LLM-powered features: search, recommendations, content generation
  • RAG pipelines with vector databases and retrieval optimization
  • Custom model fine-tuning and evaluation frameworks
  • AI-assisted internal tooling that actually ships

Built an AI-powered product discovery engine that increased conversion rate by 18% for a fashion retailer.

04

Performance & Technical Optimization

Measurable improvements to speed, stability, and search visibility.

  • Core Web Vitals optimization (LCP, CLS, INP)
  • Bundle analysis, code splitting, and caching strategies
  • Database query optimization and infrastructure right-sizing

Improved LCP from 4.2s to 1.1s on a high-traffic Next.js storefront, directly lifting organic traffic by 23%.

05

Technical Strategy & Consulting

Architecture decisions, technology choices, team leadership.

  • Technical due diligence for acquisitions and investments
  • Platform and vendor evaluation with unbiased recommendations
  • Engineering team mentorship and code review processes
  • Roadmap planning that balances technical debt with feature velocity

Led technical due diligence for a PE-backed acquisition, identifying $400K in hidden infrastructure costs.

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Prefer email? Reach me at hello@leohoesl.com