Senior Software Engineer · AI-native · Backend · Ecommerce

From unclear software problem to reliable shipped system.

I bring senior product and engineering judgement, AI-native execution, and experience in high-scale environments, so teams can move faster without lowering the bar.

Shopify logoLEGO Group logoVirgin Experience Days logo
Stefan Horne

I’ve worked on core commerce, fulfillment, and consumer platforms serving millions of users and handling serious production traffic. I pair that experience with AI workflows I trust in real engineering work: clear plans, smaller loops, better reviews, and faster delivery.

Experience

Trusted in high-scale product environments.

Shopify logo

Shopify

Core fulfillment platform

Senior Software Developer

Building and operating commerce systems used by merchants and customers globally, with deep exposure to reliability, performance, incident response, and integrated agentic workflows.

BackendReliabilityFulfillmentScale
LEGO Group logo

LEGO Group

Digital experiences

Senior Software Engineer

Architected highly available, event-driven AWS microservices and worked across Node.js, GraphQL, Next.js, React, and internal TypeScript tooling.

AWSEvent-drivenGraphQLTypeScript
Virgin Experience Days logo

Virgin Experience Days

Ecommerce transformation

Tech Lead / Senior Full Stack Developer

Led the technical and agile transformation from a C# monolith toward a modern AWS, Apollo GraphQL, and Next.js platform focused on SEO, performance, and conversion.

Tech leadNext.jsSEOCI/CD

Capabilities

What you can ask me to help with.

Backend systemsAI-native engineeringIntegrated agentic workflowsGraphQL APIsAWS serverlessEcommerce performanceProduct-engineering translation

Contact

Have a complex system, workflow, or product problem?

I’m open to focused consulting, implementation work, and senior engineering support where performance, reliability, simplicity, and execution matter.