Christian Daniel

Profile

I bring AI to where it takes work off people's hands: into the processes and platforms that companies run on. I build agent systems that support management in planning, steering or communication and drive development, refactoring and code quality. Along the way, I own the architecture and development of distributed systems, from frontend and APIs through messaging to operations on the Kubernetes cluster.

Professional experience

25+ years

Self-employed

since 2010

Professional Experience & Projects

1. 

   Ask about Cloud Solution Architect & AI Engineer at Hoffmann Group / Hoffmann Engineering Services GmbH

   2020 – 2024

   ask

   Cloud Solution Architect & AI Engineer

   Hoffmann Group / Hoffmann Engineering Services GmbH · München · 100% Remote

   • April 2024 – present· 3rd engagement
   • June 2022 – December 2023· 2nd engagement
   • September 2020 – March 2022· 1st engagement

   Member of the five-person Data Hubs team at Hoffmann Group since September 2020, currently in the third engagement. The Data Hubs consolidate data from SAP, Informatica PIM and Microsoft Dynamics CRM and serve as business-critical infrastructure for the group's digital products: 18 services across three data hubs, more than 1 million GraphQL requests per day. Three engagements in six years.

   • ●Design and evolution of the GraphQL API gateways for the Identity, Product and Order Data Hubs with federation across the microservices; framework decision for GraphQL.NET after evaluating Hot Chocolate
   • ●Established AI-assisted software development in the team: custom MCP servers, skills and harnesses for development, refactoring and code quality
   • ●Event-driven synchronization services for SAP, Informatica PIM and Dynamics CRM using RabbitMQ and Azure Service Bus
   • ●Performance engineering for flexible data access: indexing and search with Elasticsearch, caching with Redis, load testing with k6
   • ●Observability as part of the architecture: OpenTelemetry, Prometheus/Grafana and Elastic with metric-based alerting
   • ●Authorization model based on scopes and policies, built and operated within ISO 27001-certified company processes
   • ●Quality assurance and CI/CD: Testcontainers integration tests, live end-to-end tests, WireMock and SonarQube quality gates in Azure DevOps pipelines
   • ●Technical leadership through code reviews and mentoring, plus operations, incident analysis and support of the production systems

   Languages / Frameworks.NETC#ASP.NET CoreEntity Framework CoreGraphQL.NETGraphQL FederationNext.jsReactHangfireQuartz.NETWireMock.Net

   AI / LLMAnthropic Claude API (.NET)MCP Server

   Databases / StoragePostgreSQLMongoDBElasticsearchRedisTimescaleDB

   MessagingRabbitMQAzure Service BusAzure Event Hubs

   ObservabilityOpenTelemetryPrometheus / GrafanaJaeger

   CloudAzureAzure Key Vault / App Configuration

   DevOps / BuildKubernetesAzure DevOpsCake BuildGitVersionHelmDockerAnchore Grype / TrivySonarQubeRenovate Bot

   TestingTestcontainersk6NUnitxUnit

   Integration / EnterpriseSAP IntegrationInformatica PIMMicrosoft Dataverse / Dynamics CRM
2. Ask about Software Architect & AI Engineer at active Fit und Gesund GmbH (Fitness & Therapie)

   2026

   ask

   Software Architect & AI Engineer

   active Fit und Gesund GmbH (Fitness & Therapie) · Region Trier · Remote

   • June 2026 – present· AI decision platform
   • June 2026 – July 2026· Internal controlling application
   • February 2026· Proof of concept

   Several projects for a regional fitness and therapy group with four locations: an internal controlling application for utilization, target hours and revenue potential of the practices, an agent platform that supports management in day-to-day business, and a proof of concept for an AI booking assistant.

   • ●AI decision platform for management: an agent setup for planning, monitoring and steering the company, connected via RAG, MCP and skills
   • ●Agents for email triage, requirements management and steering customer communication
   • ●Connected services: Mail-Archiver, Paperless-ngx as document archive and custom sync tools for fitness and therapy industry software, including Magicline and TheOrg
   • ●Internal controlling application “activehub”: capacity planning, target/actual comparison and a utilization traffic light per location
   • ●Proof of concept for an AI booking assistant with voice output (OpenAI)

   Languages / Frameworks.NETC#GraphQLEF CoreASP.NET IdentityNext.js

   AI / LLMOpenAI API

   Databases / StoragePostgreSQL

   DevOps / BuildGitLab CIKubernetesArgoCD

   OtherWolverine
3. Ask about AI Engineer & Prozessautomatisierung at AI automation & IT security for SMEs

   2026

   ask

   AI Engineer & Process Automation

   AI automation & IT security for SMEs · Region Trier/Eifel · Remote + Vor-Ort

   • August 2026 – October 2026· Orthopaedic specialist practice
   • July 2026 – October 2026· Logistics company

   Engagements reporting directly to the management of a logistics company and an orthopaedic specialist practice: AI-supported automation of business processes, securing the IT infrastructure and digital recruiting processes.

   • ●AI-supported automation of business processes: analysis of operations and agent workflows that access document and email archives via MCP
   • ●Securing the IT infrastructure: security analysis, incident response and hardening of internally used services
   • ●Automated staff recruiting from job posting to application intake, with first job interviews within one week of campaign launch
   • ●New websites as the foundation for the digital recruiting processes

   Languages / FrameworksPythonNext.js

   AI / LLMMCP

   DevOps / BuildGitLab CIKubernetesArgoCD

   OtherHermesLive-LLMsoMLXPaperless-ngxMail-Archiver
4. 

   Ask about Senior Software Architect — Distributed Systems at advastore SE

   2023 – 2024

   ask

   Senior Software Architect — Distributed Systems

   advastore SE · 100% Remote

   December 2023 – June 2024

   Performance optimization of the distributed control system for an autonomous shuttle fleet in warehouse automation. Distributed systems under real-time conditions, where every millisecond of latency limits throughput.

   • ●Performance optimization of the distributed control system for an autonomous robot fleet in a warehouse automation platform (Akka.NET actor model), as part of an experienced senior team
   • ●Evolution of path planning and job assignment by position, load and priority, for higher throughput and calmer operations
   • ●MQTT-based real-time communication for latency-critical robot coordination
   • ●As-is analysis of processes and data structures, automated tests and technical documentation as a fixed part of the engagement

   Languages / Frameworks.NETC#Akka.NETgRPCPythonTypeScriptAngularVue.js

   Databases / StorageMongoDBPostgreSQLElasticsearchCassandra

   MessagingMQTT

   CloudAzure AKS

   DevOps / BuildDockerKubernetes

   TestingxUnit

   OtherActor ModelTerraformFlux v2
5. 

   Ask about Senior Solution Developer at Quickmail Systems GmbH / Quickmail AG

   2022

   ask

   Senior Solution Developer

   Quickmail Systems GmbH / Quickmail AG · 100% Remote

   March 2022 – July 2022

   Self-service portal that lets business customers configure and order large unaddressed mail campaigns themselves, with full responsibility for architecture, frontend and backend.

   • ●Independent end-to-end development of the customer self-service portal for high-volume direct-mail campaigns
   • ●Translating complex mailing parameters into clear, responsive self-service flows (Vue.js)
   • ●Robust order processing via cleanly cut APIs and a maintainable application architecture (ASP.NET Core)

   Languages / Frameworks.NETC#ASP.NET CoreVue.jsTypeScript

   Databases / StorageMicrosoft SQL Server

   CloudAzure
6. Ask about App- & API-Entwickler at A EINS Digital Innovation GmbH (Wittlich)

   2020

   ask

   App & API Developer

   A EINS Digital Innovation GmbH (Wittlich) · Wittlich · Remote

   March – May 2020

   Extending a sales app and its API within an existing team: contract bundling, new input dialogs, a GetContracts interface and cross-selling adapters. Fast onboarding, delivery and an orderly handover to the team.

   Languages / Frameworks.NETC#Xamarin.Forms
7. 

   Ask about Lead App-Developer at Quickmail Systems GmbH / Quickpac AG (Schweiz)

   2019 – 2020

   ask

   Lead App Developer

   Quickmail Systems GmbH / Quickpac AG (Schweiz) · 100% Remote

   March 2019 – September 2020

   Sole developer responsible for the mobile applications of the Swiss delivery service Quickpac. Offline-first architecture for reliable operation in mountain regions with patchy network coverage, including scanner and RFID hardware integration.

   • ●Design and development of the "QuickDelivery" courier app: routes, barcode scanning, GPS and time tracking, trilingual in DE/FR/IT
   • ●Offline-first sync engine for reliable operation under unstable network coverage
   • ●Kiosk mode and device management for delivery vehicles, integration of Zebra scanners and RFID
   • ●Apps for depot work, parcel pickup stations and damage management (BPMN workflow) on a shared architectural base

   Languages / Frameworks.NET CoreC#Xamarin.FormsMVVM

   Databases / StorageMicrosoft SQL Server

   CloudAzure

   TestingNUnit

   Integration / EnterpriseRFID

   OtherZebra Scanner
8. 

   Ask about Senior Fullstack Developer — Cross-Platform at Itelligence AG / ITML GmbH

   2015 – 2019

   ask

   Senior Full-Stack Developer — Cross-Platform

   Itelligence AG / ITML GmbH · Pforzheim / Bielefeld · Hybrid, zuletzt 70% Remote

   July 2015 – March 2019

   Almost four years of enterprise apps for the field sales teams of international brands, including Miele, Emsa, Steiff, Techtronic Industries and Prinoth. Individual customer solutions grew into a shared, fully configurable app framework; most recently two years of designing and building the “NextGen App” for Viega.

   • ●Implementation of the generic, fully configurable app framework based on .NET Core and Xamarin.Forms: one codebase for iOS, Android and Windows
   • ●Implementation of various sales and service apps for major clients such as Miele, Emsa, Steiff, Techtronic Industries and Prinoth, from configuration to rollout and maintenance
   • ●Integration of distributed backend systems and enterprise data (incl. SAP, BMEcat catalogs) via scalable interfaces and GraphQL
   • ●Modular framework architecture with dedicated building blocks for data access, GraphQL, layout (iOS/UWP), sync, authentication and logging

   Languages / Frameworks.NET CoreC#Xamarin.FormsXamarin.iOSXamarin.AndroidGraphQLMVVMUWPPrism

   Databases / StorageMongoDB

   TestingNUnit
9. Ask about Mitgründer & CTO at 10Geeks Software Engineering GbR (Ewen & Daniel)

   2012 – 2016

   ask

   Co-Founder & CTO

   10Geeks Software Engineering GbR (Ewen & Daniel) · Region Trier

   October 2012 – December 2016

   Co-founder and CTO of the software company 10Geeks with two business areas: in-house IoT products and client projects, with six employees.

   • ●KNX.NET: open-source driver for the KNX automation bus, later ported to .NET Core and published on NuGet under the MIT license
   • ●Switch smart home app: the HomeKit idea for the Microsoft ecosystem (Xamarin, Azure, SignalR)
   • ●Quality management tool for BMW, commissioned by IBS / Siemens
   • ●Cloud-based vehicle configurator for Werner Fahrzeugbau plus tournament and event software, both via Medienfabrik Trier
   • ●Product development “Word-Expander” for Bartels Media; game design and implementation of “Flappy-Geek” (UWP, iOS, Android)
   • ●Nominated for mobile awards several times

   Languages / FrameworksC#.NET Core.NET FrameworkXamarin.FormsXamarin.iOSXamarin.AndroidUWPMVVM

   CloudAzureAzure IoT Hub

   DevOps / BuildAzure DevOps

   ToolingVisual Studio

   OtherWindows Presentation FoundationKNX ProtocolWindows PhoneGit
10. Ask about App-Entwickler — WM-Kampagne at Razorfish Frankfurt / McDonald's Deutschland

    2014

    ask

    App Developer — World Cup Campaign

    Razorfish Frankfurt / McDonald's Deutschland · Frankfurt · 80% Vor-Ort

    April 2014 – July 2014

    Virtual football game in the official McDonald's app for the 2014 FIFA World Cup: scan the packaging, trigger a shot on goal. Delivered against a fixed deadline for an audience of millions and released on time in all app stores.

    • ●Implementation of the promotional game for Windows Phone, including performance optimization of the existing app
    • ●Then reinforcing the iOS team: the same game mechanics natively in Objective-C
    • ●Camera integration, packaging recognition, animations and backend integration for entry validation

    Languages / FrameworksC#.NET Framework

    ToolingVisual Studio

    OtherObjective-CWindows PhoneiOSXcode
11. 

    Ask about Softwareentwickler & Softwarearchitekt at Schneider Electric (Marktheidenfeld)

    2013 – 2014

    ask

    Software Developer & Software Architect

    Schneider Electric (Marktheidenfeld) · 50% Vor-Ort, 50% Remote

    February 2013 – March 2014

    Integration of engineering tools from several divisions into one unified application, in some cases based solely on existing binaries. Microsoft consultants had previously classified the project as unsolvable; planned, implemented and shipped to production with the team.

    • ●Development of the central components of the SoMachine suite: shell, frame manager, domain model and application services (WPF, dependency injection)
    • ●Reverse engineering of proprietary tools for seamless integration into one consistent UI, including COM interop
    • ●Python tools and build automation (TeamCity, Jenkins) for multi-tool workflows with international teams
    • ●Mentoring of permanent team members and code reviews in the core integration team

    Languages / FrameworksC#.NET FrameworkPythonCOM-Interop

    ToolingVisual Studio

    OtherWindows Presentation FoundationSCADA IntegrationTeamCityJenkinsXMLReverse Engineering
12. 

    Ask about Softwareentwickler & Softwarearchitekt at Sartorius (Melsungen / Göttingen)

    2010 – 2013

    ask

    Software Developer & Software Architect

    Sartorius (Melsungen / Göttingen) · 80% Vor-Ort, 20% Remote

    November 2010 – January 2013

    First engagement as a self-employed consultant: development of a SCADA system for fermentation processes, bioreactors and precision scales in a regulated biotech environment. The engagement was extended several times.

    • ●Design and development of a near-time, workflow-based data streaming service for biotech process control
    • ●Plugin-based driver infrastructure for scales and lab devices: serial protocols, TCP/IP and REST
    • ●Sophisticated WPF visualization tools with real-time data feeds for fermentation processes
    • ●Development in a GxP environment with 21 CFR Part 11 and validatable processes in mind

    Languages / FrameworksC#.NET FrameworkCOM-Interop

    Databases / StorageMicrosoft SQL Server

    ToolingVisual Studio

    OtherWCF Data ServicesWindows Presentation FoundationWindows Workflow FoundationTeam Foundation ServerResharper
13. 

    Ask about Softwarearchitekt .NET at Felten Group (Wecker, Luxemburg)

    2007 – 2010

    ask

    .NET Software Architect

    Felten Group (Wecker, Luxemburg) · Vor-Ort + Kundeneinsätze

    August 2007 – August 2010

    MES systems for pharmaceutical and cosmetics production with high demands on quality and validation. The focus was a proprietary scripting language with its own IDE, which made customer-specific, FDA-validatable systems much faster to implement.

    • ●Development of a proprietary scripting language with its own IDE, IntelliSense, syntax highlighting and debugging included
    • ●Precision weighing and control systems for pharmaceutical production, in use at Boehringer Ingelheim, Symrise and Beiersdorf among others
    • ●FDA-validatable solutions per 21 CFR Part 11
    • ●Introduction of modern ALM tools (Team Foundation Server) in the development team

    Languages / FrameworksC#C++.NET FrameworkWindows Forms

    Databases / StorageMicrosoft SQL Server

    DevOps / BuildALM

    Integration / EnterpriseMES SystemsFDA 21 CFR Part 11

    ToolingCustom DSLIDE DevelopmentVisual StudioXML Configuration

    OtherWindows Presentation FoundationTeam Foundation Server
14. 

    Ask about Softwareentwickler — Lead-Team POS & ATM at ticket.International (Daun)

    2004 – 2007

    ask

    Software Developer — POS & ATM Lead Team

    ticket.International (Daun) · Vor-Ort + internationale Einsätze

    January 2004 – August 2007

    POS systems, ticket machines and access control for cinemas and leisure parks, with a focus on hardware integration and international on-site rollouts.

    • ●Co-development of the Dolphin Suite: POS system, self-service kiosks, seat booking and a scalable backend
    • ●Hardware integration of barcode scanners, RFID readers, EC card terminals, printers and access gates
    • ●International on-site introductions: implementation, training and go-live support

    Languages / FrameworksBorland DelphiBorland C++Delphi Visual Component Library

    Databases / StorageFirebird/InterBaseMicrosoft SQL Server

    Integration / EnterprisePOS SystemsATM SystemsBarcode ScannerRFID ReaderEC-Card TerminalsPrinter Integration

    ToolingCrystal Reports
15. Ask about Programming Analyst at Fimat International Banque S.A. — Société Générale Gruppe (Frankfurt)

    2001 – 2003

    ask

    Programming Analyst

    Fimat International Banque S.A. — Société Générale Gruppe (Frankfurt) · Frankfurt · Vor-Ort

    January 2001 – October 2003

    Career start at a Frankfurt securities broker: risk management and regulatory reporting obligations in securities trading, in a six-person development team.

    • ●Development of the “Miracle” risk management tool for real-time securities trading analysis
    • ●Implementation of regulatory interfaces to BaFin for compliance and reporting
    • ●Migration of Access and Excel solutions into a newly created intranet application framework (Zope/Python)

    Languages / FrameworksVisual C++Visual BasicJavaScriptPythonASP.NETComponent Object Model+ / Distributed COM

    Databases / StorageMicrosoft SQL Server

    Integration / EnterpriseExcel AutomationBaFin ComplianceFinancial Trading SystemsRisk ManagementSecurities Analysis

    OtherActive Template Library / Microsoft Foundation ClassesOracleMicrosoft Access Migration

Own Products & Open Source

Tech Expertise

Courses & Certificates

Away from the code

• ●Tech labHome automation (KNX, Home Assistant) · Kubernetes and platform engineering · IT security
• ●Endurance sportsTriathlon · Road cycling · Bike-packing adventures
• ●RC model sports (team pilot at minicopter)