I design and modernise resilient enterprise platforms — from architectural decisions through to production-ready delivery in regulated environments.
→Available for architecture reviews, platform design and technical leadership (remote / DACH / EU).
Project experience with
Consulting
Clearly defined analysis and modernisation packages for complex enterprise systems.
Architecture Review
Independent analysis of existing system architectures focusing on scalability, stability and maintainability.
Focus
Deliverables
Security & Identity
Structural analysis of authentication and multi-tenant architectures in production systems.
Focus
Deliverables
Platform Modernization
Modernisation of business-critical platforms — structured and without operational disruption.
Focus
Deliverables
How we start
A structured introductory call (30 minutes). You describe your challenge — I provide an initial assessment and outline possible next steps.
Decisions made upfront save months of remediation. Every engagement starts with a clear, documented architecture baseline.
Security is not an afterthought. Zero Trust, OIDC, HSM integration and regulatory compliance are built in from day one.
Kubernetes-native, observable, and deployable in regulated cloud environments including on-premise and hybrid setups.
Services
Focused on the intersection of distributed systems, security, and operational excellence.
Domain-driven design, service decomposition, API contracts, and inter-service communication patterns that scale without collapsing under complexity.
Scalability ↑, coupling ↓
Keycloak, OAuth 2.0, OIDC, JWT hardening, HSM-backed digital signatures, eIDAS / e-İmza compliance. Multi-tenant identity done right.
Attack surface ↓, compliance ↑
OpenTelemetry instrumentation, distributed tracing, structured logging, Grafana dashboards — because you can't fix what you can't see.
MTTR ↓, incident transparency ↑
Cluster design, Helm charts, GitOps pipelines, autoscaling, resource governance — for both public cloud and on-premise regulated deployments.
Cloud costs ↓, deployment frequency ↑
Event sourcing, CQRS, Kafka topology design, schema registry, consumer group strategies — for high-throughput, reliable data flows.
Data loss ↓ · Latency ↓ · System decoupling ↑
Schema-per-tenant, row-level security, tenant lifecycle management, and isolation guarantees that satisfy enterprise procurement.
Onboarding time ↓, tenant security ↑
Stack
Production-proven. No hype, no experiments in critical paths.
Work
All projects delivered in productive enterprise operation — with a focus on stability, compliance and long-term maintainability.
Challenge
Deutsche Bank operated its global network management on a legacy QIP infrastructure. Migration to Infoblox was required — with zero downtime, across multiple global data centres, while keeping operations running.
Approach
As Senior Software Developer, I led the core transformation: data migration, API integration between legacy and target systems, and building a central monitoring portal for global network management.
Result
Global migration in live operation with zero downtime. Centralised network management across multiple data centres worldwide — maintainable, scalable and audit-ready.
Challenge
The Federal Office required a modern, legally compliant solution for automated processing of XÖV/xJustiz messages at high volume — with strict compliance requirements.
Approach
As lead developer and technical director, I designed and implemented the EGVP Spring Boot application: automated message processing, secure transmission protocols, and microservices architecture on Java/Spring.
Result
Solo delivery in 4 months — external teams had declined the project as too complex. Full XÖV compliance, complete audit trail, stable under high load.
Challenge
Bethmanbank required a new generation of digital financial products — process-oriented, multi-tenant, and integrable into existing core banking systems.
Approach
As Senior Chief Architect and Full-Stack Lead, I was responsible for concept, architecture, and development of the platform — from data layer to UI, in close coordination with business units and compliance.
Result
Multiple financial products (risk analysis, portfolio review, investment proposal) in a single rollout. Modular architecture — new regulatory requirements implementable without rewrite.
Challenge
KfW Bank required modern J2EE-based intranet applications for loan processing — with high requirements for data security, traceability, and integration into host systems.
Approach
As Senior Architect, I took responsibility for specification, design, and development of several loan processing modules — from requirements analysis through to production-ready implementation on J2EE.
Result
J2EE platform for development loan processing in live operation. Transaction-safe persistence, complete audit trails for all credit decisions.
Challenge
The Federal Employment Agency required a modern platform for secure data exchange with state authorities — event-driven, containerised, and compliant with strict regulatory requirements.
Approach
As Senior Backend Developer, I built microservices with Quarkus and Java 11, integrated Apache Kafka for asynchronous communication, and deployed the entire platform in Kubernetes — within an agile, multidisciplinary team.
Result
OSCI interface between the Federal Employment Agency and state authorities — multiple federal states connected. Kubernetes deployment, Kafka-based processing under high load.
Challenge
The NGN-MC project to modernise telecommunications processes ran into serious difficulties — structural weaknesses and a lack of technical leadership threatened the project's success.
Approach
Starting as Senior Developer, I was appointed Task Force Lead based on proven performance. I stabilised the project, reorganised the team, and drove it to successful delivery.
Result
Project stabilised and successfully delivered. Technical leadership in a critical phase — transition from developer to lead role under time pressure.
Challenge
No integrated platform existed for workflow management, collaboration, and file management in enterprise environments — existing solutions were too rigid, too expensive, or not integrable.
Approach
As founder and lead developer, I designed and built omex (Object Management Explorer) from the ground up: a complete workflow engine, calendar, email, and file management — all in one seamless cloud platform.
Result
Self-built cloud platform that unites architectural thinking, product development and entrepreneurial initiative.
Whether you need an architecture review, a new platform design, or hands-on engineering leadership — let's find out if we're a good fit.
Get in Touch