Markus Weiland – Freelance Solution Architect

What I do

B2B ecommerce projects in industrial settings fail for predictable reasons: pricing logic that does not survive contact with a modern commerce platform, integration architectures that grow faster than anyone planned, and development teams working without sufficient architectural oversight from the client side.

My focus is on the intersection of complex B2B pricing processes and ecommerce architecture: customer-specific pricing, contract-based conditions, ERP pricing integration, and how all of this maps onto headless and MACH-based system landscapes.

I engage at the level of technical and business management, bridge between development teams and stakeholders, and document architectural decisions in a way that outlasts the project.

I work fully remote, with occasional on-site meetings where it genuinely contributes to project success.

What clients achieve through working with me

Architectural clarity in complex projects

• Independent assessment of ecommerce system landscapes in relation to strategic business goals
• Design and evaluation of target architectures for replatforming and migration projects
• Prototyping and technical validation of new architectural approaches

Requirements that actually reflect the business

• Identification and resolution of gaps between business requirements and technical implementation
• Structured requirements work with stakeholders at management and team level
• Translation between business needs and technical constraints in both directions

Projects that stay on track

• Architectural oversight throughout delivery, not only at the start
• Coordination between client stakeholders and external development teams
• Documentation of architectural decisions that remains useful after the project ends

Selected experience

Over more than ten years of project work in B2B ecommerce, I have worked with manufacturers and distributors in sectors including industrial supplies, building materials, and lighting, as well as with the digital agencies that serve them. Projects have ranged from MACH architecture to full ecommerce replatforming, global CMS rollouts, and ML-based pricing applications.

Earlier, I built and led the engineering function of a B2B ecommerce marketplace for the German metal trade as CTO, from early stage through product-market fit. The platform's approach to independent marketplace positioning and guided product search was recognised in FAZ and WirtschaftsWoche.

I hold a Diplom in Media Informatics from Technische Universität Dresden, with a minor in Business Administration.

Technology focus

Ecommerce platforms: commercetools, Vendure, Shopify Plus

Content management: Contentful, Payload CMS

Integration & APIs: GraphQL, Apollo Server, REST, Commitspark

ERP / PIM / CRM: Akeneo, Salesforce Sales Cloud

Payment: Adyen, PayPal, Stripe

Frontend & backend: Next.js, Node.js, TypeScript, NestJS, PHP

Infrastructure: AWS, Kubernetes, Docker, GitHub Actions / CI/CD pipelines

Languages: German (native), English (fluent), French (business fluent)