bizprofile
Dieter Radler

Dieter Radler

Hi, I'm Dieter.

Senior Architect · Project Lead · Full-Stack Developer

Unterschleissheim / München

Get in touch Profile as PDF
years of experience
41
projects
41
countries
6

About me

In IT since 1985 and in data integration, data warehousing and business intelligence for more than 25 years: at Digital Equipment and Informatica, as founder of ITBconsult and co-founder of InfoDyn AG, today as managing director of S4U GmbH and Senior BI Manager in the STI Consulting network.

I combine architecture and project management with hands-on development – in projects for banking, insurance, telecoms, energy and industry in Germany, Austria, Switzerland, the US and Canada. Today I also build modern business applications with Laravel and AI – from multi-tenant platforms to e-invoicing – and IoT solutions based on ESP32 and Raspberry Pi.

Certified Scrum Master and state-recognised data protection officer.

My goal is always to reach a correct and lasting result in a short time – through good preparation, a structured approach and efficient evaluation.
— Dieter Radler

Focus areas

Data warehouse, BI & data lake

More than 25 years of data integration with Informatica PowerCenter, Pentaho and Talend – from Data Vault and star schemas to data lake architectures.

Project management & architecture

International projects for banks, insurers, telecoms and energy – requirements, architecture, team and schedule from one source. Certified Scrum Master.

Business process management

Evaluation and introduction of BPM platforms such as Camunda, process modelling, implementation and training.

Modern business applications

Multi-tenant platforms, portals and ERP systems with Laravel, Livewire and Filament – with sync architecture and versioned APIs.

E-invoicing & GoBD

ZUGFeRD and XRechnung according to EN 16931, validation with the KoSIT validator, DATEV transfer and GoBD-compliant locking.

AI in product and development

Claude API for extraction and classification, own MCP servers, AI-assisted development with firm rules and tests.

Deployment & operations

Deployment automation since 2009 – from an in-house PowerCenter deployment tool to a zero-downtime hub for our own servers.

Software evaluation

Structured selection of ETL, BPM and CAD/CAM software: clear criteria, proof of concept, sound decision.

Embedded & marine IoT

ESP32, Arduino, Raspberry Pi, NMEA 2000/CAN, Signal K and LoRa – from a remote yacht monitoring prototype to custom on-board electronics.

Skills

Data warehouse & data integration

Informatica PowerCenter (4.x – 9.x, trainer) Pentaho Data Integration Talend Informatica Data Analyzer, Metadata Manager Data quality (Athanor) IBM MQ Series, JMS Control-M, Automic

Data modelling & big data

Data Vault 3NF modelling Star and snowflake schemas (OLAP) Data Lakes (Hadoop, Spark) Kafka, NiFi, Hive, Redshift

Analytics & Reporting

SAP BW (certified) MicroStrategy Business Objects Dashboards

Databases

Oracle (since version 7) MS SQL Server / T-SQL IBM DB2 Teradata EXASOL MySQL / MariaDB SQLite Redis

Backend

PHP 8 Laravel 11–13 Livewire 4 Filament 4/5 REST-APIs, Sanctum, Passport/OAuth Python (Jupyter, NumPy, OpenCV) Java, JRuby C / C++ Node.js

Frontend & Mobile

Tailwind CSS 4 Alpine.js Vue 3 / Inertia JavaScript / jQuery HTML5 / CSS Vite Ionic / Angular / Capacitor Swift / SwiftUI Mobile apps (App Store, Google Play)

Project management, methods & quality

Scrum (Certified Scrum Master) Product Owner ITIL deployment processes Test management (HP Quality Center, Tarantula) Jira, Confluence, Redmine Software evaluation and proof of concept Domain-Driven Design, ADRs PHPUnit / Pest, Larastan AI-assisted development (Claude Code)

Business processes & business software

Camunda BPM Inspire BPM Suite BPMN process modelling Salesforce SugarCRM Mailchimp, phpList SolidWorks CAD/CAM

DevOps & operations

Linux / Ubuntu (Hetzner) UNIX (Solaris, HP-UX, AIX, Red Hat) Windows Server VMware ESX / vSphere Docker / Docker Compose Apache, PHP-FPM, Let's Encrypt GitHub Actions, Jenkins, Maven, Nexus Zero-downtime deployment UFW, Fail2ban, Postfix

E-invoicing & commerce

ZUGFeRD / Factur-X XRechnung / EN 16931 KoSIT-Validator DATEV Stripe WooCommerce / WordPress PrestaShop EU-OSS

AI

Claude API MCP servers Create ML Image and audio processing (OpenCV, librosa)

Embedded & IoT

ESP32 / ESP8266 (PlatformIO) Arduino / ATMEL Raspberry Pi NMEA 2000 / 0183 (CAN) Signal K MQTT BLE LoRa / LoRaWAN / Meshtastic LTE / GPRS

Projects

Technology

Reference projects

06/2026 – present

6 months

S4U ERP: invoicing, time sheets, e-invoicing

S4U GmbH · ERP & invoicing · Concept and development

ERP for S4U GmbH and affiliated companies covering consulting as well as print & production – in production use.

  • ZUGFeRD (PDF/A-3) and XRechnung with KoSIT validation, DATEV upload by mail, GoBD locking
  • Own MCP server with OAuth: AI assistants query documents and open items
  • Roles, permissions and audit log
Laravel 13 Filament 5 Livewire 4 MySQL 8 horstoeko/zugferd mPDF Passport MCP

2018 – 05/2026

Data lake solution: architecture and project lead

Software provider, Munich · Software & SaaS · Architect and project lead

Data lake / DWH solution from initial assessment to operation: architecture options developed, aligned with management and VPs, implementation led and evolved.

  • Analysis of business situation, IT infrastructure and requirements for a data lake or DWH
  • Several architecture options with pros and cons as a decision basis for managing directors and VPs (finance, product management)
  • Led the implementation and all subsequent changes and enhancements as project lead
Data Lake Data Warehouse SQL

02/2021 – 04/2025

4 years

IFRS 17 balance sheet: SQL business logic and data pipelines

Insurance group, Austria · Insurance · DWH/ETL development and requirements analysis

Building and running the data pipelines for the IFRS 17 balance sheet of an insurance group and its companies – within a Scrum framework.

  • Around 250 transformation processes based on SQL, Pentaho jobs and Automic monitoring chains
  • Cash flow calculation for the IFRS 17 balance sheet and policy processing in the DWH
  • Complex T-SQL logic (statements of up to approx. 1,000 lines) for data movement and modification
  • Performance monitoring and tuning of the load pipelines
  • User stories, change requests and functional/non-functional requirements
MS SQL Server T-SQL Pentaho DI 9 Automic Jira Confluence Scrum

2015 – 2016

Solvency II reporting: project management and architecture

International reinsurer · Reinsurance · IT project manager and architect

Reporting system for Solvency II reporting (QRTs) of a business unit – combining Informatica PowerCenter, Camunda and MicroStrategy.

  • Led a team of five to improve the existing Solvency II reporting
  • BPM evaluation under my lead (with BARC): requirements catalogue, supplier workshops, shortlist
  • Architecture of the new reporting database combining PowerCenter, Camunda and MicroStrategy
  • Introduced Data Vault for fast, parallel loading – including training and proof of concept
  • Time, resource and defect management, release deployments to pre-production and production
Informatica PowerCenter 9.6 Oracle 12 EXASOL Camunda 7.4 MicroStrategy Data Vault

More projects

  • Plugin family for the Signal K server and custom on-board devices: anchor watch, battery management via BLE, weather alerts, touch panel and single instruments on the NMEA 2000 bus.

    • On-board simulator with scenarios and faults – development without a boat
    • ESP32 as a full NMEA 2000 device via CAN/TWAI
    • GPS tracker on Pi Zero with offline buffer and read-only file system
    Signal K Node.js ESP32 PlatformIO NMEA 2000 BLE MQTT Raspberry Pi

  • Public service: upload an invoice PDF, AI extracts the data, review form, validated ZUGFeRD/XRechnung hybrid PDF, payment via Stripe.

    • KoSIT validator as a daemon checks Schematron EN 16931 and BR-DE rules, with fallback
    • AI extraction with amount reconciliation against the PDF and regression tests
    • Batch processing, credit model, automatic deletion after 24 hours
    Laravel 13 Livewire 4 Claude API Stripe horstoeko/zugferd KoSIT qpdf

  • Platform for owners, skippers and crews: maintenance, spare parts, logbook with GPS tracking, weather, crew planning and kitty – with iOS app and Raspberry Pi tracker.

    • Evolution from single- to multi-tenant SaaS with a shared catalogue
    • Bulk import of boat documents with rule-based classification and AI autofill
    • Offline-capable trackers (iOS, Pi) with batch upload and idempotency keys
    • Subscriptions via Stripe and the Apple App Store
    Laravel 13 Filament 4 Alpine.js MySQL Stripe Cashier SwiftUI StoreKit Python Claude API

  • Multilingual WooCommerce shop for a patented dinghy mount: migration from PrestaShop, move to Hetzner and a custom plugin suite instead of a page builder.

    • Home page reduced from 410 kB to 61 kB
    • Custom plugin suite with 20+ modules: schema/FAQ, IndexNow, shipping, currency, e-invoicing
    • Withdrawal button according to § 356a BGB, redirect concept after migration
    • Feasibility study for a headless Laravel shop (Lunar) incl. EU OSS taxes and ERP bridge
    WordPress WooCommerce PHP Laravel Lunar nginx Create ML

  • Link between business, implementers and application owners – from requirement to acceptance.

    • Worked out requirements with business specialists, moderated alignment of all parties
    • Designed and visualised solutions jointly in workshops
    • Calculated implementation and change costs, assessed benefits and TCO
    • Supervised and accepted the implementation
    Solution Architecture Requirements Engineering

  • Apps for the Apple App Store and Google Play; rebuilt with Ionic and Capacitor in 2025.

    • SOS LifeSaver: guides through emergency radio procedures and creates distress messages with position and UTC time, multilingual
    • AnchorWatch Professional: anchor position, chain length and swing circle, alarms when leaving the circle or on low battery
    • Precise GPS evaluation and battery-saving transmission algorithm
    • Fast Metabolism Diet as a sample app with AngularJS and React
    HTML5 JavaScript Cordova AngularJS React Ionic Capacitor

  • Browser-based deployment tool for PowerCenter – from product design and the development team to sales and customer roll-out.

    • Product design and architecture, star schema for compliance and business reporting
    • Built a Java nearshore team with its own development office in Zagreb, introduced Scrum
    • Build, test and deployment processes based on ITIL, automated testing, test management
    • Data integration with Talend and PowerCenter, dashboards, manuals and end-user training
    • Introduced and administered Salesforce incl. licence management and quote forms for partners
    Java Informatica PowerCenter Talend Oracle JRuby Salesforce Scrum

  • Analysis and redesign of PowerCenter deployment processes with the ICem tool – from as-is analysis to implementation with the customer's team.

    • As-is analysis and requirements for the new deployment processes
    • Solution design, presentation and buy-in at senior management level
    • Implementation together with the customer teams, developer training
    • Environments with Oracle 11g, DB2, SQL Server, Windows and UNIX (HP-UX, Solaris, AIX, Red Hat)
    Informatica PowerCenter 9 Oracle 11g DB2 MS SQL Server UNIX SFTP ICem
    • Planning and development of the roll-out
    • Software installation, training of administrators and the development team
    Informatica PowerMart / PowerCenter

+28 Plus 28 more projects – details on request. Get in touch

Career

  1. 2014 – present

    Senior BI Manager (freelance consultant)

    STI Consulting · München

    BI, DWH and data projects for insurers, financial services, retail and technology companies.

  2. 2009 – present

    Managing Director

    S4U GmbH · Unterschleissheim

    Consulting on BI, data and processes plus own products: S4U ERP, pdf-zugferd.de, BordOps and TenderConnect.

  3. 2011 – 2014

    COO and co-founder

    InfoDyn AG · München

    Product management and architecture of a deployment tool for Informatica PowerCenter, set-up of the development office in Zagreb, sales and roll-out with customers in North America and Europe.

  4. 09/2003 – 12/2010

    Founder and managing director

    ITBconsult GmbH · Unterschleissheim

    BI consulting and project management for banks, insurers and industry; Informatica PowerCenter trainer (5.x – 8.x) with own training concepts; development of a deployment system for PowerCenter.

  5. 1999 – 08/2003

    Manager European PreSales

    Informatica

    Data warehouse and data integration projects, proofs of concept and project management for key accounts in Germany and Europe.

  6. 1995 – 1998

    Consultant

    Digital Equipment (DEC)

    System integration and database interfaces, incl. a migration from OS/2 to Windows NT at a central bank.

Qualifications

Education

  • Graduate engineer (Dipl.-Ing.) in technical computer science
  • Bank clerk (apprenticeship)

    Kreissparkasse Heidenheim

  • Electronics technician (apprenticeship)

Certifications

  • Certified Scrum Master 04/2016

    Boris Gloger

  • State-recognised data protection officer

    Berufsverband der Datenschutzbeauftragten (BvD) e. V.

  • Certified SAP BW Consultant

    SAP

  • Microsoft Certified Systems Engineer (MCSE)

    Microsoft

  • Informatica PowerCenter trainer

    Informatica · Installation, administration and development

Training

  • Complete Python Bootcamp: From Zero to Hero 2021

    Udemy

  • PHP development

    University of Michigan (online)

  • Teradata: Introduction, Application Utilities, Physical Database Design

    Teradata

  • Data Warehousing & Data Integration
  • Process modelling and management

Languages

  • German

    Native

  • English

    Business fluent

Let's talk

s4u.gmbh

More projects, client names and terms on request.

Drop me a line – I usually reply within two business days.

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