Senior Full-Stack Developer · Independent Consultant
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Whole-stack work — backend services, frontend, databases, deployment, and the glue in between. The preference is for small, focused systems with clear interfaces, run-anywhere deployment, and tests that catch the regressions that actually matter.
The most enjoyable work tends to be automation and tooling: catalog generation, ERP integrations, workstation provisioning, and the kind of in-house systems that compress manual work from days to minutes.
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01 · Internal tooling
Internal apps and admin UIs that turn repetitive operational steps into reliable, repeatable workflows.
02 · Data & documents
Database content, structured data, and documents shaped into dependable APIs and clean user interfaces.
03 · Automation
Automating the boring parts — PowerShell, REST scripting, reporting, and third-party integrations.
04 · Communication
Explaining the same system to engineers and to operations teams — in English and German.
05 · Reliability
Production work across ERP, workstation automation, and security systems where downtime has real cost.
06 · Design + engineering
Bridging design and engineering so internal tools aren't only correct — they're pleasant to actually use.
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// mesonic & pds business software · SMB ERP
// alarm · video · access-control systems
// independent software consultancy
// ERP & security software
// brand management platform
// global volunteer applications
// web & business tooling for SMEs
// web design studio
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Generates printable PDF catalogs from a normalised product database. Runs locally at each client site so the catalog can include client-specific pricing and SKUs.
Custom front-end and back-office tools for a brand-management catalog product. Adds client-specific overlays and reporting on top of a vendor system.
Long-running ERP product family in the German retail space. Work spanned the customer-facing front-end, the SQL Server back-end, and the access-control layer.
Automated provisioning, secrets distribution, and access policy for a fleet of mixed Windows/Linux workstations across multiple sites.
[ 05 ]import { stack } from './toolchain';
Languages
Web
Data
Ops
Testing
// AI in the loop
Day-to-day delivery runs through a multi-model pipeline — brief, spec, plan, execution, and adversarial review handled by Claude (Anthropic API + Claude Code) and Codex (OpenAI), routed through a self-hosted LiteLLM gateway that unifies every provider behind one OpenAI-compatible endpoint. Every meaningful step gets audited by a second model before it ships. This site was built that way.