Freelancer profile translated to English.
Back to original languageAbout Marcus
I design and build custom business systems for organizations whose internal processes have outgrown spreadsheets, scattered SaaS tools, and established workarounds.
The work begins not with features or tools, but with reality: actual workflows, real data structures, concrete constraints. Only then do the data model, system boundaries, and – where a custom build is the right decision – the implementation emerge.
Over almost two decades, I have designed and implemented internal core systems for areas such as Legal, Finance, License and Rights Management, and Operations – from individual custom applications to complex, long-lasting workflow platforms in international corporate environments.
The focus is on the Claris FileMaker platform (certified, for over 19 years), complemented by web integrations, APIs, and other low-code environments. The system determines the tool – not the other way around.
My approach: Clarity before complexity, systems that last, fewer tools instead of more. When internal software runs quietly in the background and supports daily work without friction, the goal is achieved.
Operated as an independent practice under Mākasu (Makasu). Collaboration is direct, without intermediaries, with clear architectural responsibility.
German
Native or bilingual
English
Fluent
Remote only
Primarily works remotely
Experience
- MākasuFounder · Solution ArchitectSOFTWARE PUBLISHINGDecember 2025 - Today (6 months)Building and operating an independent practice for system architecture and custom business applications. Focus on conception, structuring, and simplification of complex internal systems – especially where processes have become historically grown, fragmented, or difficult to maintain.Services:
- Analysis and restructuring of existing system landscapes
- Architecture and design of custom software and internal core systems
- Clarification of data models, processes, and responsibilities
- Supporting companies in transitioning from ad-hoc solutions to stable, understandable systems
- Kiza SolutionsLead Solutions Architect — Enterprise SystemsSOFTWARE PUBLISHINGDecember 2025 - May 2026 (5 months)Temporary role as Technical Lead responsible for the technical and structural direction of FileMaker-based business systems. Focus on long-term maintainability, system coherence, and clean architecture, as well as translating unclear requirements into clear system and data models.Focus areas:
- Architectural and structural decisions for complex FileMaker-based business systems
- Evaluation and restructuring of existing solutions
- Translation of unclear requirements into clear system and data models
- Ensuring maintainability, extensibility, and technical consistency across projects
- FreelanceSolution ConsultantSOFTWARE PUBLISHINGJanuary 2025 - November 2025 (10 months)Consulting and solution activities across several German ISV product platforms – including a FileMaker-based SaaS solution in the area of fire protection/ERP.Acting as a liaison between the productized SaaS and enterprise end customers: Translating customer-specific requirements into platform configuration and architectural adjustments.Focus areas:
- Consulting on system architecture and platform alignment
- Translating business requirements into configuration and structural adjustments
- Structural further development of legacy systems with a focus on maintainability and continuity
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Certifications
- App Developer for Claris FileMaker Pro ExpertClaris, an Apple company2024
- Claris FileMaker Server Administrator ExpertClaris, an Apple Company2026