We develop and operate bespoke SaaS solutions for organizations with high demands on data protection, compliance and independence — GDPR-native, free of US jurisdiction, without lock-in. From requirements through architecture to hardened operation: everything from a single source.
Standard cloud doesn't fit every requirement. We build the solution that suits your processes and your compliance — and operate it where your data belongs.
Operation in German data centers (Open Telekom Cloud) — data residency in Germany, aligned with BSI C5. On request on-premises in your own facility or fully air-gapped.
Bespoke domain applications instead of an off-the-shelf toolkit: Rust / React, local AI, multi-tenant and auditable. Test-driven, with architecture decisions documented.
Your software talks to your systems: SAP S/4HANA via the official APIs, OIDC / SSO, existing databases. No data silos, no shadow IT.
We build upstream and complementary solutions that keep data sovereignty with the customer and post into S/4HANA via the official SAP APIs — on-premises or in a German data center, without any obligation to use the SAP Business Technology Platform.
Sovereign accounts-payable invoice verification as an alternative to the checking & workflow layer ahead of SAP (SAP Central Invoice Management). Not an ERP replacement — posting happens in S/4HANA.
From signature to go-live: four phases, each with acceptance criteria.
Operation where your data belongs: on-premises, air-gapped or in a German data center. TLS, backups with rehearsed restore, alerting.
Connection to S/4HANA via the official OData APIs, or handover to your middleware — including attachments and the validation report. Master-data sync, inbound channels, approval workflow mapped to your roles.
Your real documents in a test run, acceptance against defined criteria — production starts only once everything demonstrably works.
Production cut-over with a defined update and rollback path. Operated by us or by your team — continuity via verified software escrow.
We understand the process, cut the interfaces cleanly and record every non-trivial decision in Architecture Decision Records.
Every rule is proven against the standard, not merely claimed. Automated tests, linting and documentation are part of the deliverable.
Hardened, tenant-separated operation in German data centers — or at your premises. Source-code escrow available: you stay in control.
Software tailored to your processes and operated in German data centers — or on-premises: GDPR-native, free of US jurisdiction and without lock-in. You retain sovereignty over code and data, even after switching providers.
Yes. We post into S/4HANA via the official SAP OData APIs, with or without SAP Business Technology Platform. Example: Fortress Invoice verifies incoming invoices sovereignly (EN 16931, local AI, three-way match) and posts the finished document into S/4HANA via the official API — not an ERP replacement, no cloud obligation.
In German data centers (Open Telekom Cloud), aligned with BSI C5, data residency in Germany. On request on-premises in your own facility or fully air-gapped — entirely without an internet connection.
Rust and React, local AI (Ollama / llama.cpp), PostgreSQL. Test-driven, architecture decisions documented, multi-tenant and auditable. With source-code escrow on request.
Whether it's a live demo and onboarding of Fortress Invoice or an architecture workshop for your own solution — drop us a line. We get back to you personally, without funnels and without newsletter spam.
Prefer direct? service@bruchmann-tec.com