20+ Years Enterprise IT
Architecture and integration decisions for grown systems in logistics, transport and public sector
References
Proof from practice.
Anonymized project references from enterprise and public sector — verifiable, without confidential details.
Trust through Experience
Trust comes from accountability
Experience from regulated enterprise and public-sector environments where architecture decisions must carry operations, compliance and delivery at the same time.
Named technical owner
Architecture, code, deployment and risks are not split across anonymous roles
Certifications
ISTQB Certified · IREB Certified · ISAQB Foundation
Public Sector & Regulated Environments
GDPR, OWASP, audit-readiness and operations are considered from day one
LogisticsTransportPublic SectorFinancial Services
3,900+Profile views on Freelancermap
15+Years of enterprise experience
4Certifications (ISTQB, IREB, ISAQB, ...)
Client references
Austrian Post AGSolution Architect · 15+ years
ÖBB Passenger TransportIntegration & Solution Architect · 3 years
Federal Computing Centre (BRZ)Solution Architect · 1+ year
Project Proofs
Proof that remains useful without confidential details
Anonymized project patterns show the artifacts that get delivered: architecture path, CI/CD gates, security baseline, observability and handover.
Public Sector – Stabilizing Digital Services
Challenge
Critical online service with unstable releases, security risks and missing technical transparency.
Contribution
Prioritized risks, documented architecture decisions, CI/CD gates, security hardening, observability and operations handover.
Outcome
Release and operations capability became traceable; detailed metrics and system context remain NDA-bound.
Enterprise – Incremental Legacy Replacement
Challenge
Grown core system with high business dependency, scarce expertise and risky changes.
Contribution
Strangler approach, interface facade, test strategy, migration path and first safe release cuts.
Outcome
The program got a modernization path without big bang; technical risks and next releases became decidable.
Enterprise – Ordering an Integration Landscape
Challenge
Many services and interfaces, inconsistent standards, unclear failure causes and growing operations effort.
Contribution
Defined API governance, gateway/tracing concept, technical standards and responsibility model for operations and future delivery.
Outcome
Failure causes became easier to narrow down, interface accountability clearer and releases easier to plan.
Enterprise – Anonymized AI System Analysis
Challenge
Grown system landscape, manual documentation and no structured knowledge base for migration and modernization initiatives.
Contribution
Built a local AI system for anonymized application, source-code and DB analysis, automated documentation and human-in-the-loop review.
Outcome
Use cases, target pictures, refactoring approaches and prototypes were derived from the existing landscape.
Use cases we deliver
Concrete outcomes and clear accountability — no consulting theater.
Active filter: Public Sector. Results: 2.
Architecture
Stabilize digital services
Challenge
Public authority with 200,000+ users: unstable releases, outages during peak load (tax filing season), no structured observability. Incident response takes 4+ hours.
Outcomes
- Release cycle halved
- Reliability above 99.9%
- Incident response: 4h → 45min
Architecture & Delivery
Make Legacy Systems Cloud-Ready
Challenge
State agency with 15+ year-old legacy system (monolith, on-premise, Oracle DB). Cloud migration without downtime required, business logic must be preserved, no big-bang approach possible.
Outcomes
- Monolith Split into 8 Modules
- Azure Migration with Zero Downtime
- Cloud costs: -30% vs. on-premise
Proof decision-makers can inspect
No confidential client details and no invented metrics: these examples show role, starting point, delivered artifacts and why the approach transfers.
Public Sector – Stabilizing a critical online service
Technical transparency, safer releases and operations handover for a regulated digital service.
- Prioritized risks, dependencies and operations bottlenecks
- Built logging/tracing concept and incident-oriented handover
- Embedded security and interface hardening as starting conditions
Decidable stabilization path with security baseline, observability and clear operations accountability.
Source: docs/02_case_studies.md#case-study-2-stabilization--cloud-modernization-public-sector-at (anonymized).
Enterprise – Ordering an integration landscape
Unified interfaces, security requirements and operations processes across several systems.
- Created interface catalog and target architecture for integrations
- Defined monitoring, security and coexistence path
- Aligned business, operations and supplier teams on one responsibility model
Traceable integration contracts, better diagnosis and clearly governed responsibility for changes.
Source: docs/02_case_studies.md#case-study-4-enterprise-integration-architecture-transport--infrastructure (anonymized).
Enterprise – AI-assisted system analysis
Local analysis of documentation, applications, source code and database structures, anonymized and human-in-the-loop.
- Designed analysis without publishing confidential data
- Structured repository, application and database knowledge
- Made results usable for modernization, refactoring and new applications
Use cases, target pictures, refactoring approaches and prototypes derived from the existing system landscape.
Source: Anonymized enterprise AI modernization (anonymized).
Contact
Contact us
We respond within 24 hours with a clear recommendation. Project start typically 1-2 weeks after initial call.