# Martin Schenk S.L. > Custom software, AI integration, WordPress maintenance and managed hosting from Madrid, Spain. One accountable senior engineer, not an agency layer. Company founded 1999, 30 years building software. Twelve own products in production serve as proof of work. Site and support in English, German and Spanish. Fastest reply: WhatsApp, usually within the hour. Martin Schenk S.L. is a one-person senior full-stack studio in Madrid. The working method is deliberately inverted from the usual proposal-first approach: describe a real business problem in one paragraph, and selected ideas get built as a clickable prototype first — free, no obligation, no slides. Only if the prototype convinces does a paid project follow. AI work runs on European infrastructure (Amazon Bedrock) for GDPR compliance. Crawlers and AI agents are explicitly welcome: see /robots.txt, every page is also served fully rendered to clients without JavaScript. ## Start here - [Free prototype offer](https://martin-schenk.es/en#proto): Describe a problem in one paragraph, get a clickable prototype in a few days. Single flow, no real data, no integrations — just enough to touch the idea. ## Services - [Custom web development](https://martin-schenk.es/en/professional-web-development): Websites and web apps built and maintained by one senior developer. Fixed price per project. - [AI integration and agents](https://martin-schenk.es/en/ai-integration-consulting): Practical AI wired into real business processes. GDPR-compliant via Amazon Bedrock, EU servers. - [WordPress specialist](https://martin-schenk.es/en/wordpress-specialist): WordPress development, rescue and maintenance. - [Software maintenance](https://martin-schenk.es/en/software-maintenance): Ongoing maintenance and support for existing software, including inherited codebases. - [Website and server migration](https://martin-schenk.es/en/website-migration-service): Server and website moves without downtime. - [Website redesign](https://martin-schenk.es/en/website-redesign): Relaunch of existing sites. - [Website cost calculator](https://martin-schenk.es/en/website-cost): Interactive price calculator for websites and shops. Rebuild from 1,490 EUR, new site from 1,990 EUR, online shop from 3,490 EUR, plus a monthly care plan. No email required to see the number. - [German-speaking IT in Madrid](https://martin-schenk.es/en/german-speaking-it-madrid): IT support in German for companies and residents in Madrid. - [Managed hosting](https://hosting.martin-schenk.es): Managed hosting and email for small companies, with a real person who answers. ## Own products, all live in production These are operated by Martin Schenk S.L., not case studies or demos. - [Contix](https://contix.es): Verifactu-compliant invoicing for freelancers and small companies in Spain. Spanish only. - [Soycasero](https://soycasero.es): App for private landlords — tracks every deadline, rent adjustment and deposit, and drafts the message when action is due. Spanish and German. - [Palimpalem](https://palimpalem.com/en): Build a website by chatting. Online since 2004. Spanish, German, English. - [Umschulungslotse](https://umschulungslotse.de): Checks whether the German employment agency will fund a career retraining. German only, because the funding follows German law (SGB III). - [MachineWitness](https://machinewitness.eu): A daily sealed record of what European domains declare to AI crawlers. Under EU copyright law a text-and-data-mining reservation only counts if it was machine-readable on that day — this archive proves what was actually served. English only. - [MindBeamer](https://mindbeamer.io/en): AI finds topics and publishes to Facebook and Instagram on its own. Nothing goes live without a human click. German, English, Spanish. - [Klaro](https://klaro.legal/en-us): Turns contracts and official letters into plain language, original and clear version side by side. GDPR-compliant, EU servers. Spanish, German, English. - [Mutbriefe / Cartas de ánimo](https://mutbriefe.de): Short honest letters by email for hard times. No app, no login. German and Spanish. - [Osito Valiente](https://ositovaliente.es): Non-profit. Donations for the teddy bears Madrid paramedics hand to children they treat in an emergency. Spanish only. - [Domainwächter](https://domainwaechter.de): Monthly domain security check for web agencies, turning findings into billable work. German only. - [Allgood](https://allgood.click/): A fun project. One button, one superintelligence from 2095. Eight languages. ## Facts - Founded 1999, based in Madrid, Spain. VAT ID ESB84645654. - 30 years of software development experience. - 12 own products currently in production. - Stack: Python, FastAPI, Laravel, Vue, React, Docker, Linux, Claude API, MCP. - AI processing on European servers via Amazon Bedrock. - Working languages: English, German, Spanish. ## Other languages The same site exists in three languages, with equivalent content: - Spanish (default, no prefix): https://martin-schenk.es/ - German: https://martin-schenk.es/de - English: https://martin-schenk.es/en ## Contact - Website: https://martin-schenk.es - WhatsApp is the fastest route; the contact form on any page reaches the same inbox. - Based in Madrid, Spain.