Anzeigenpilot
AI Vision · Marketplace · Stripe Connect · OAuth · MCP
Archived// Experience & references
Experience & references
Banking portals, event architectures, professional platforms, and open standards: these systems show what Entwicklerherz has delivered in client projects and under its own responsibility.
Owned within client teams
Experience from real enterprise systems
DZ BankKBM
Software architecture and Lead Engineering
Architecture and technical delivery for core components of a digital advisor and customer portal.
AngularKafkaOpenShiftGraphQL
Kafka Streams · GraphQL · OpenShift
Deutsche PostPension Service
Software architecture and Backend Engineering
Event and integration architecture for pension requests and information workflows.
Spring BootKafkaKubernetes
Hexagonal architecture · Kafka Streams · Kubernetes
LBBCoBranding Platform
Software architecture and Engineering
Platform and integration architecture for multi-tenant credit card and partner processes.
Cloud-NativeKubernetesCI/CD
Multi-tenant · Partner integrations · CI/CD
Deutsche BahnFASSI-MOVE
Application architecture and Engineering
Offline-capable application architecture for the mobile workplace in rail operations.
PWAOffline-FirstEdge Computing
PWA · Offline capability · AWS integration
VisualVestRoboAdvisor
Application & Integration Engineering
Technical delivery of core application and integration flows in a regulated FinTech environment.
AngularSpring BootAWSREST API
Robo-advice · eID verification · API integration
DZ BankGPdirekt
Software architecture and technical delivery
Technical delivery of business-critical onboarding and signature processes.
Digital OnboardingCompliance AutomationDocuSign
Digital onboarding · E-signature · Process integration
Built by Entwicklerherz
Selected in-house engineering references
Here, Entwicklerherz owned product decisions, software architecture, implementation, and technical operations.
Fachzirkel
LiveVerified professional platform for health practitioners with matching, marketplace, specialist groups, directories, and direct messaging.
Demonstrates role and verification workflows, moderation, search, messaging, passkeys, billing, and privacy-aware account lifecycles.
Next.jsPostgreSQLPasskeysStripePWA
openworkid / upstand
LiveOpen standard and reference platform for portable professional profiles with peer verifications, JSON-LD, exports, REST, and consent-controlled MCP access.
openworkid.orgupstand.work
Demonstrates standards design, portable data models, multi-domain routing, passwordless sign-in, and controlled agent interfaces.
JSON-LDNext.jsSupabaseRESTMCP
Additional systems built
SchemaPath
Next.js · Encryption · Learning Engine · Azure AI · i18n
ArchivedTherapendo
Multi-Tenant · Publishing · TipTap · Domains · Encryption
ArchivedWhich technical constraint should be solved next?
A short description of the system, the current situation, and the required outcome is enough for an initial assessment.