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Kai S.

Project Management, Software Architecture and Development

Berlin, Germany

Experience

May 2025 - Jun 2025
2 months
Taufkirchen, Germany

Software Developer

Hensoldt AG

  • Development of a GUI application for capturing and calculating TOPSIS sensor combinations
  • Technologies: Python, VS Code, Unit Tests, Clean Code, GitHub Copilot
Mar 2023 - Nov 2023
9 months
Hamburg, Germany

Software Architect, Management Consultant and Team Coach

Plath Signal Products GmbH & Co KG

  • Developed a software architecture for a platform for high-performance signal processing of broadband antennas
  • Advised the CTO
  • Coached the leadership team
Jan 2022 - Present
3 years 11 months
Berlin, Germany

Software Architect and Developer

KSC GmbH

  • Developed a portfolio of intelligent and robust ML-based office tools for project acquisition, applications and communication
  • Technologies: Python, LangChain, Pandas, Open-Source LLMs (local), Data Embedding, Vectorization, Web Scraping, LM Studio, AgentGPT, Agentic Framework, Image Recognition, Prompt Design, RAG programming, PostgreSQL, Selenium, TensorFlow, Huggingface, Clean Code, Tabnine, GitHub Copilot
Nov 2021 - Oct 2024
3 years
Hennigsdorf, Germany

Software Architect, Developer and Coach

Sinfonie GmbH & Co KG

  • Extended an MS Access based care management system to support KIM email communication according to new legal requirements with Gematik
  • Technologies: C#, .NET Core, Visual Studio 2022, JetBrains dotTrace, Resharper, Tabnine AI, Dependency Injection, IoC, XML, UML, Linq, Entity Framework 6, REST, SMTP, IMAP, POP3, Exchange Server, M365, MS Graph, MSSQL Server, Azure DevOps, TDD, CI/CD, NUnit, Trello, Clean Code, User-Centric Design, ALM, Log4Net, ADM, NLog
Mar 2021 - Aug 2022
1 year 6 months
Berlin, Germany

Tech Lead / Interim Data Product Owner

50Hertz Transmission GmbH

  • Led the development of the BIM Digital Twin in the DC-Lines infrastructure project (Süd-Ost-Link)
  • Selected technologies and created the backlog for a transversal integration layer
  • Coordinated and consulted on business requirements and data architecture
  • Built and operated a central data product for infrastructure data
  • Participated in the change process to a data-centric matrix operations model
  • Migrated infrastructure projects to an enterprise-wide Data Platform
  • Technologies: BIM, Agile, Scrum, Kanban, SAFE, Jira, KPI, MS Teams, UML, TOGAF, ETL, Miro, Data Centricity, CIM, Data Discovery, MDM, GIS, Critical Infrastructure, Data Product, Asset Data, SQL, DaaS, Power BI, Git, ADM
Oct 2019 - Oct 2020
1 year 1 month
Potsdam, Germany

Software Architect and Developer

Brandenburg State Office for Real Estate and Construction

  • Implementation of customer requirements for property management in coordination with clients, project management, and BI architects
  • Integration of MS Project Server with SAP and development of a custom solution
  • Interface development for communication between ERP and DMS solution
  • Technologies: M365, MS SharePoint, MS Project Server, MS Project, Exchange Server, EAI, Jira, TDD, MS Teams, C#, .NET, Visual Studio 2017/2019, Resharper, Entity Framework 6, MS SQL Server, MS Graph, Azure DevOps, SAP, CSOM, Log4Net, CI/CD, IoC, Private Cloud, Monitoring, Clean Code, Unit Tests
Mar 2019 - Dec 2020
1 year 10 months
Berlin, Germany

Process Analyst and Software Architect

Funk Group

  • Designing a software architecture and developing a greenfield application for service billing and payment processing with ERP-driven document generation and legally compliant archiving
  • Technologies: C#, .NET Core, Blazor, Visual Studio 2019, IoC, JetBrains dotTrace, Resharper, BPMN, UML, CI/CD, TDD, ARC42, Entity Framework 6, REST, MS SQL Server, WPF, MVC, MVVM, ASP.NET, SSIS, Bootstrap, Hangfire, Angular.ts, IE, MS Teams, Private Cloud, xUnit, Unit Tests, User Acceptance Tests, Dependency Injection, Clean Code, User-Centric Software Design, ALM, ADM, Fluent Assertions, Tabnine, Log4Net, SignalR
Mar 2019 - May 2019
3 months
Hennigsdorf, Germany

Software Architect, Developer, and Coach

Sinfonie GmbH & Co. KG

  • Extending an MS Access-based care management system according to Luxembourg legal requirements
  • Technologies: C#, .NET, Visual Studio 2017, JetBrains dotTrace, Resharper, XML, UML, Entity Framework 6, REST, MS SQL Server, TFS, MS Access, Azure Framework, Log4Net, CI/CD, IoC, Clean Code, Troubleshooting, Team Coaching, ALM
Sep 2018 - Dec 2018
4 months
Berlin, Germany

Software Architect and Developer

Francotyp Postalia GmbH

  • Development of a greenfield e-commerce portal application for integrating external logistics providers and social media
  • Technologies: C#, .NET, Visual Studio 2017, Resharper, XML, UML, Entity Framework 6, REST, LINQ, SQL, ETL, MS SQL Server, Kubernetes, Azure DevOps, Agile Scrum, Kanban, GraphML, React, TeamCity, CodeBeamer, Angular 6, E-Commerce Webshop, SignalR, Sentry, OAuth, Git, Azure Framework, IE, MS Edge, Firefox, Chrome, JetBrains dotTrace, Task Scheduler, GraphQL, SOAP, Docker, Clean Code, ALM, Troubleshooting, ADM, IaaS
Oct 2017 - May 2018
8 months
Schwerin, Germany

Project Manager, Software Architect, and Troubleshooter

DVZ Mecklenburg-Vorpommern GmbH

  • Review of a problematic existing project for managing judicial deposits and payment transactions
  • Migration from Gupta to .NET
  • Creating a new software architecture and project plan
  • Restructuring and setting up team and development processes
  • Coaching the team and project leadership
  • Roadmap and milestone upkeep, risk management, task coordination, milestone reporting, document and knowledge management
  • Technologies: Visual Studio 2015, Confluence, Jira, SharePoint, HP Quality Center, TFS, C# .NET 4.5, MVC 3, C++/CLI, MS SQL Server, jQuery, JavaScript, MVVM, Bootstrap, TypeScript, Gupta, Agile, ARC42, TOGAF, DevExpress, Scrum, Kanban, Log4Net, SignalR, CI/CD, IoC, IE, MS Edge, Firefox, Chrome, Clean Code, Private Cloud, Critical Infrastructure, ENTSO-E Architecture Framework
Mar 2016 - Mar 2017
1 year 1 month

Software Architect and Developer

Corning Optical Communications GmbH & Co. KG

  • Analysis, optimization and extension of an internet platform and SAP production control
  • Deployment processes, programming, testing
  • Technologies: Visual Studio 2013, SCM, C# .NET 4.5, MVC 3, ASP.NET, web services, REST, JavaScript, TypeScript, Angular 2, jQuery, Bootstrap, Telerik Kendo, Kendo UI Framework, MS SQL, Oracle, SAP, UML, MsTest, SharePoint, CI/CD, Agile, XAML, dependency injection, IoC, cryptography, ReSharper
Feb 2014 - Feb 2016
2 years 1 month
Berlin, Germany

Project Manager, Software Architect and Troubleshooter

Kieback&Peter GmbH & Co. KG

  • Designing complex SaaS software architectures for Qanteon GLT and Connect Router product development
  • Project and team management, vendor coordination, evaluation of SCADA providers
  • Introduction of Jira and Clean Code
  • Roadmap and milestone management, risk management, task coordination, document and knowledge management
  • Technologies: Visual Studio 2013 Ultimate, SCM, GLT, Bacnet, PGA, VB.NET, C# .NET 4.5, MVC 3, ASP.NET, C++/CLI 4.5, IIS, OWIN, SignalR, WebSockets, web services, REST, MS SQL, MongoDB, Azure, AWS, NoSQL, MySQL, JavaScript, jQuery, Bootstrap, Vue.js, Node.js, Elasticsearch, Jira, Confluence, TypeScript, SharePoint, Kubernetes, EF, TFS, GIT, Nexus, MS Project, MsTest, ESB, SOA, OAuth, SCADA, GIS, Enterprise Architect, UML, BPML, VMware, ITIL, Scrum, Agile, TDD, E-Commerce, Log4Net, IoC, Skype, Private Cloud, QNX/Unix/Linux, Clean Code
Feb 2014 - Nov 2014
10 months
Berlin, Germany

Software Architect and Developer

KPMG AG

  • Designing software architectures and introducing software engineering processes
  • Test and quality management, programming
  • Development of a personnel planning software
  • Technologies: Visual Studio 2013 Ultimate, unit & integration testing, EF, TFS build definitions, e-commerce, web services, SharePoint, C# & VB.NET, MVC, MVVM, REST, WPF, WCF, MsTest, TDD, T-SQL, Azure, UML, BPML, Oracle, SAP, Scrum, Kanban, DevExpress, IIS Express, IoC
Aug 2013 - Nov 2013
4 months
Berlin, Germany

Software Architect and Developer

McFit GmbH

  • Developing custom solutions and integrating backend processes for an e-commerce portal
  • Creating model library, websites and REST web APIs for MS Dynamics CRM and MS SharePoint
  • Technologies: C# .NET, MVC 4, VB.NET, ADO.NET, Web API, web services, REST, JSON, SaaS, SOA, Ajax, MS Dynamics, SVN, PDF, TFS, UML, jQuery, AWS, cloud, Scrum, IIS
Jun 2012 - Jul 2013
1 year 2 months
Neckarsulm, Germany

Software Architect and Interim Development Manager

mike travel AG

  • Setting up a software development office in Berlin, selecting, hiring, coaching and training a 10-member development team
  • Designing a system architecture for innovative processing of e-commerce travel services
  • Developing data harvesting/BI tools with machine learning and collaborating with partners
  • Roadmap and milestone maintenance, risk management, task coordination, knowledge management
  • Technologies: C#, MVC 4, C/C++, big data, ML, jQuery, Bootstrap, ECMA/JavaScript, ASP.NET, IIS, DI, Node.js, Python, Angus, MS SQL, Azure, AWS, RabbitMQ, Sonic MQ, MongoDB, PostgreSQL, Magento, XML, IoC, MS Project, UML, DWH, ETL, Scrum, Telerik UI, Elmah, Log4Net, Clean Code
Feb 2010 - Dec 2010
11 months
Belo Horizonte, Brazil

Founder and establishment

Digipen Ltda.

  • Founded and built Digipen Ltda.
  • Pitched for public and private financing
  • Created detailed plans for technology and organization
Dec 2000 - Dec 2009
9 years 1 month
Oyten, Germany

Founder, Head of Research and Development, Product Owner of digipen

bendit GmbH

  • Managed the technical and disciplinary aspects of software development
  • Led projects, defined software architecture, and supported key accounts
  • Built a strategic partner and supplier network as well as product support
  • Handled PR, marketing, and partner solution sales
  • Designed, implemented, and brought the "digipen" product portfolio to market as the first digital pen-and-paper solution in Germany
  • Developed the truck toll solution "Maut Connect" and carried out projects for clients such as Wiebe Gleisbau, Meyerwerft Papenburg, GFT Healthcare, Continental, and Finum Finanzhaus
  • Technologies: SOA, Java, C++, C#, VB.NET, TCP/IP, Sockets, Bluetooth, Anoto Technology, Oracle, EAI, form capture, handwriting recognition, ERP, DMS, JBoss, Apache Tomcat, MySQL, Sonic MQ, ESB & Orchestration Server, XML, XPath, Windows Forms, SPP, Nokia, RIM OS, Android, Microservice, Jenkins
May 1998 - Apr 2002
4 years
Bremen, Germany

Research Associate in Production Informatics

Research Center for Work, Environment and Technology at the University of Bremen

  • Provided technical leadership to student staff
  • Executed the EU IST projects BREVIE and DERIVE
  • Developed and tested mechatronic learning systems for the vocational training of mechatronics apprentices
  • Modeled virtual reality environments and programmed optical position tracking and ultrasound object tracking
  • Integrated into augmented reality and conferencing systems
Apr 1992 - Sep 1992
6 months
Japan
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Stay abroad

  • Educational trip as part of a cultural exchange
Jan 1986 - Jan 1987
1 year 1 month
Brisbane, Australia
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Stay abroad

  • AFS student exchange year

Summary

  • Design and implementation of innovative and critical projects
  • Project management and team leadership in Agile (Scrum, SAFE, TDD) and Waterfall
  • Digital transformation and organizational development
  • Fullstack software development in C#, .NET, Python and other languages
  • GUI & User Experience
  • Software architecture patterns (MVC, MVVM, BIM, SOA)
  • Data integration (Data-Centric, REST API, ETL) and data management (Data Product, Azure Devops), analysis and visualization

Languages

German
Native
English
Advanced
French
Elementary
Portuguese
Elementary

Education

Oct 1991 - Jun 1998

University of Bremen

Diploma in Computer Science · Computer Science · Bremen, Germany

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