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Experience

  1. GenAI Solution Architect

    March 2026 - present

    thinkproject Holding GmbH

    Establishing the GenAI function at a European construction and AEC software company. First appointment to this role. Member of the AI Decision Board. Approx. 7 engineers on the agentic AI team downstream of the use cases I define. Serving VDC, CDE and Contracts.
    • Shipped AI-driven contract variation analysis, the company's first production agentic AI capability.
    • Work directly with customers to surface pain points and translate them into agentic AI use cases and technical specifications.

    Technologies:
    Google ADK
    Langchain
    Langgraph
    Vertex AI
    GCP
    Azure
  2. Senior Solution Architect(IOT)

    Aug 2022 - February 2026

    Hilti Entwicklungsgesselschaft mbH

    Hilti builds smart tools and the digital services around them. I held architectural ownership of the industrial IoT platform, end to end, from the tool on the construction site through gateway and cloud to the customer-facing service, with more than a million connected devices in the field.
    • Owned the 3 to 5 year technical roadmap for the full IoT chain, device to service.
    • Ran two external delivery partners against roughly 750k EUR of budget, from vendor selection through to approving payments, with 10 to 15 engineers downstream.
    • Cut CloudWatch and Lambda spend by more than 20 percent by archiving cold logs to S3 and reworking Lambda memory profiles and code paths, while the fleet kept growing.
    • Replaced a VM-based HSM with AWS KMS and introduced end-to-end traceability for IoT messages across the chain.
    • Built a GenAI support agent that connects to a live device over WebSocket, runs diagnostics, and summarises its error logs for the support team using RAG over the product documentation.
    • Worked with C-level stakeholders on digital transformation in construction: IoT, data analytics and AI.

    Technologies:
    AWS Cloud
    IOT Core (mqtt)
    Kubernetes
    Gen-AI
  3. Lead Principal Specialist

    Oct 2019 - Jul 2022

    Alten GmbH

    Alten is a globally active consultancy in IT and Engineering. In April 2021 a part of OSB AG got merged with Alten GmbH.

    Functions

    • Leading teams consisting of 5-6 consultants.
    • Technical interviews screening of applicants.
    • Counselling the clients, Software architecture and development.

    Projects:

    • Medimarkt Saturn GmbH: Optimizing the search using solr in GKE (google kubernetes engine). Ensuring reliability and performance of search components.


    Technologies:
    JavaEE
    Spring
    Elastic Search
    Solr
    Gradle
  4. Lead Architect

    Aug 2018 - Sep 2019

    msg Systems AG

    msg Systems AG is a multinational IT Consulting companies with clients in different branches like insurance and automobile. Worked for famous clients like BMW und Daimler:

    Functions

    • Leading an international team.
    • Creating proposals for client.
    • Presenting the proposals to the client.
    • Requirement analysis and estimation.
    • Technology counselling, Architecture and development.


    Technologies:
    Openshift
    Kubernetes
    Docker
    Cassandra
    AWS Cloud
  5. Principal Specialist/Senior Java Consultant

    Feb 2014 - Jul 2018

    OSB AG

    OSB AG is an IT and Engineering consulting company having clients Germany wide in different branches like Automobile, Finance, Payment, etc.

    Functions

    • Leading teams consisting of 5-6 consultants.
    • Technical interviews screening of applicants.
    • Counselling the clients, Software architecture and development.

    Projects:

    • MasterPayment: Developing an online payment integration platform which integrate different payment methods e.g. credit card, direct debit, paypal. Multichannel payment provider.
    • Zeppelin Baumaschinen GmbH: A consumer portal including an online shop and an custom ERP system based on spring, hibernate on liferay platform.


    Technologies:
    JavaEE
    Spring
    Elastic Search
    Solr
    Gradle
  6. Software Engineer

    Jan 2012 - Jan 2014

    maxdome GmbH & Co. KG

    Working with a team to extend and maintain the backend system of Germany's on of the first and largest video on demand portals www.maxdome.de The company belongs to the well known ProSieben-Sat1 Media group. Here i am a member of the team which develops, maintains and supports the backend Java EE services essential to maxdome. We have mainly spring, hibernate based application which provides backend service like authentication, customer support, billing, age verification, document storage etc. I am specifically involved in extending and maintaining the customer support services and performance testing and performance tuning of the whole stack.

    Technologies:
    JavaEE
    Spring
    Hibernate
    Tomcat
    maven
    Jenkins
    JMeter
  7. Software Engineer

    Oct 2005 - Dec 2011

    Consors Finanz GmbH

    Projects : Involved in many projects related to developing, maintaining, supporting, extending credit application, called Rata@net® Activity : In this company I have been involved in following important development related tasks along with normal Java EE and C++ development.
    • Automatic configuration of weblogic application server (domains, managed servers, datasources etc. with the help of WLST (WebLogic Scripting Tool)
    • Performance tuning of Weblogic Application Server.
    • Core dump analysis of crashes of C++ servers.
    • Thread dump analysis of java processes.
    • Performance testing of Java EE Application on Tomcat and Weblogic.
    • Securing web application.
    • Developments of features in the German Card Authorization Server which authorizes online transactions and also processes the clearing.
    • Automatic release procedure.
    • Project management.
    • Requirement analysis and estimation.


    Technologies:
    Java
    C++
    Jsp
    CORBA(OmniORB, JacOrb)
    Weblogic
    Tomcat
    Python
    php
    bash