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Deja Software – logoDeja Software

Munich, BavariaISO 27001 & 100% GDPR compliant

Sovereign Architecture

German software engineering & digital transformation

Tailor-made enterprise software.Engineered with Munich precision.

We design and deliver business-critical cloud platforms, AI solutions with full data sovereignty and high-performance microservice architectures for mid-market leaders and DAX corporations across the DACH region.

Request a project – no obligationExplore our services
  • 100% GDPR & Frankfurt am Main (eu-central-1)
  • TISAX AL-3 & clean code standards
  • 100% in-house senior engineering team
99.98%
System availability
Contractually guaranteed high availability with a 24/7 SLA
40+
Successful enterprise rollouts
Industry 4.0, MedTech, FinTech & automotive
100%
In-house engineering
No subcontracting – built in our Munich office
< 24 h
Response time for first consultation
Direct access to our senior software architects

Services & core competencies

Precise software architecture for maximum resilience.

We close the gap between forward-looking innovation and uncompromising security. Every line of code follows clean architecture principles and the strictest German compliance requirements.

AWS · Azure · German Sovereign Cloud

Enterprise cloud & SaaS development

Resilient, multi-tenant multi-cloud and SaaS platforms. Whether Open Telekom Cloud, STACKIT or global hyperscalers – with data stored exclusively within the German/EU legal area (Frankfurt eu-central-1).

  • Zero-downtime CI/CD pipelines
  • Kubernetes & container orchestration
  • Event-driven microservices
  • GDPR-compliant tenant isolation
Module: CLOUD-PLATFORM-ENTERPRISERequest an architecture review
On-prem & sovereign LLM

AI & machine learning integration

Leverage modern large language models and automated decision engines without sensitive company data ever leaving your jurisdiction.

  • On-premise LLM hosting (air-gapped capable)
  • Retrieval-augmented generation (RAG)
  • EU AI Act conformity assessments
Module: SOVEREIGN-AI-STACKValidate AI feasibility
Zero disruption

Legacy modernisation & microservices

Transforming grown monoliths into scalable, modular architectures during live operations – without interrupting business-critical value chains.

  • Strangler fig migration pattern
  • Performance audit & latency optimisation
  • Systematic removal of technical debt
Module: LEGACY-MOD-SECURERequest a refactoring plan
BSI · TISAX · GDPR

Cyber security, DevSecOps & compliance

Holistic security concepts from the first draft to continuous deployment. We implement automated SAST/DAST, pen-testing routines and complete audit trails aligned with NIS-2 and BSI IT-Grundschutz.

  • Automated vulnerability scanning
  • Support for GDPR records of processing
  • End-to-end hardware cryptography
  • NIS-2 & CRA readiness check
Module: AUDIT-SEC-DEFENSESchedule a security audit
Modern software engineering office in Munich-Schwabing with architects reviewing system diagrams
Tech hub Munich-Schwabing

Leopoldstraße 102

At the heart of Bavaria's innovative technology ecosystem.

Legal certainty under German law (BGB)

Reliable work and service contracts with Munich as the place of jurisdiction. 100% transfer of all copyright and usage rights (IP transfer) upon settlement of the invoice.

The Deja Software advantage

Bavarian engineering craft meets a modern enterprise stack.

Large IT projects rarely fail because of code – they fail because of friction, unclear communication and incomplete legal foundations. We guarantee a direct partnership at eye level.

Direct senior counterparts

No opaque account management and no untransparent offshoring. You talk directly to the lead architects in Munich.

100% GDPR & data sovereignty

Legally protected against the CLOUD Act. Infrastructure and engineering processes follow the BSI IT-Grundschutz standard.

Uncompromising code discipline

Test-driven development (TDD), automated static code analysis and complete documentation secure long-term maintainability.

On-time delivery & budget discipline

Transparent milestones based on agile methods (Scrum/Kanban) with weekly releases and clearly calculable sprint budgets.

Project inquiry & architecture consulting

Start your next software project with Deja Software.

Receive a well-founded first feasibility assessment and architecture consultation from our senior engineers in Munich within 24 hours.

Munich headquarters · direct line

Deja Software GmbH i. G.Leopoldstraße 102 / SchwabingD-80802 München, Bayern, Deutschland

Munich switchboard

+49 (0) 89 2154 7890

Mon – Fri: 08:30 – 18:00 CET

Business inquiries

anfrage@deja-software.de

PGP key available on request

Prefer to talk directly?

Book a 30-minute video call with our lead architect Dr. Lindner right away.

100% confidentiality & upfront NDA

On request we sign a mutual non-disclosure agreement under German law before you share any sensitive specifications with us.

Form · step 1 of 1

Structured project submission

Project category / main requirement
Estimated budget volume & scope
Processed in Munich · no cold callsGuaranteed response within 24 h

FAQ · legal & collaboration

Frequently asked questions from IT decision makers

1

How are IP and copyrights handled?

Once the invoice is settled in full, 100% of all exclusive usage rights to the source code and architecture documents transfer to you. No vendor lock-in remains on our side.

2

Can we sign an NDA upfront?

Absolutely. Within two hours we provide our standardised confidentiality agreement reviewed by specialist lawyers – or we sign your company's standard NDA.

3

Where are the development servers located?

Our development environments and internal repositories run exclusively on ISO-certified servers in Germany (Frankfurt am Main and Munich regions) in strict compliance with the GDPR.

Munich · Bavaria · Germany

Ready for digital excellence from Munich?

Let us take your system architecture to the next performance level. Non-binding, confidential and engineered with precision.

Get in touch now