I design and deliver infrastructure, platforms, and production AI, from target architecture to stable operations. Most engagements start in one of four situations:
Robin Winkelewski · Berlin · Previously SAP and SysEleven
Robin Winkelewski · Berlin · Previously SAP and SysEleven
10+ years in production · 1,200 teams served · BSI IT-Grundschutz projects
30-minute working session. No pitch, no commitment.
One architecture, across three connected layers.
Workloads run where cost, control, and regulation make sense for the business, with the trade-off written down.
Changes ship faster without making the platform harder to operate after go-live.
AI workloads reach production under your data rules, on infrastructure you control.
Three systems, and my role in each.
Cloud architect and platform engineer at SAP · 5 years
Three on-premises-to-cloud migrations at SAP. The largest covered more than 100 million artifacts and 1.5 PB; final cutover completed inside one hour. The migrations had no unplanned downtime, and platform validation fell from 40 minutes to 90 seconds.
Cloud security architect at SysEleven · secunet group
Security architectures for classified government workloads: zone models, protection-requirement analysis, and controlled exchange across security boundaries. Compliance was a design input, not a pre-launch retrofit.
Built and operated by me
A production reference platform spanning Kubernetes, distributed storage, GitOps, and multi-GPU inference. Placement follows data, risk, control, and cost requirements; the system stays reproducible and under operator control.
You work directly with me. Decisions stay explicit, and the result stays operable without me.
No vendor commissions, partner quotas, or product to place. The recommendation is the one I would be willing to operate myself.
Every engagement starts with a documented target architecture. Delivery translates decisions made in the open, against measurements rather than assumptions.
Access, source, diagrams, and runbooks stay with you. The work is finished when your team can operate the result without me.
Each step is scoped before it starts. You can stop after any of them.
Free · 30 minutes · no commitment
Bring a current setup, a target architecture, or a concrete risk. We identify the binding constraint and the most useful next step.
Book 30 minutes3 days · fixed price quoted before we start
Hands-on review of your platform or planned architecture. Written assessment, risk matrix, and compliance snapshot for a decision you already have to make.
Request a second opinion5 to 10 days · evidence-based
A deep dive into architecture, delivery flow, and security posture. Prioritized risk log, action plan with success criteria, and a results workshop with your team.
Scope an assessmentWhen the scope is clear, the work can continue as implementation, an interim engagement, or monthly architecture advisory, always against an agreed target architecture and with a documented handover.