fullstackdeveloper.de

References & CV

My core competencies

Frontend

  • Angular
  • React
  • CSS, SCSS

Backend & BFF

  • .NET Core
  • Spring Boot (Kotlin)
  • IDM, Keycloak & OAuth2

Data & Events

  • SQL & good database design
  • Messaging
  • IoT

Software Solutions Architect

My goal is not to develop complex software, but to provide the best solution to my customers problems.

I enjoy working with professional teams, solving customer needs.

I’m a software architect & developer with a focus on web application development. Over the years I have gained experience in using multiple technologies in both, front-end and back-end. I deliver working, high-quality solutions and components on task level and on system level. Technologies that I have used and feel comfortable working with include Angular, React, TypeScript, .NET, Spring Boot, OAuth/IDM, *SQL, Kubernetes, Messaging and many more.

Mattanja Kern

Project history

11/2020 – (until today) Building a software platform for German banking startup (via GFT)

In my current main project, we are supporting our customer with a small development team responsible for some of the micro-services building a new platform for various financial products.

Technologies:
Angular
Spring Boot (Java and Kotlin)
ActiveMQ Artemis
PostgreSQL
Kubernetes

07/2019 – 10/2020 Car leasing flows for financial services of major German car manufacturer (via GFT)

Development of various front-ends and integration to existing enterprise back-end systems in the realm of car financing.

Technologies:
React
NestJS
AWS Services, Lambda, DynamoDB

04/2015 – 06/2019 AXOOM GmbH

Startup founded by TRUMPF GmbH + Co. KG
Software-Developer, Lead-Developer, Software-Architect, Team lead
Development of an industrial IoT platform as a founding member

  • Portal to integrate applications provided by app partners
  • Multi-tenant Identity Server with fully automated setup of new customers, management of users and permissions
  • App-Store with automated provisioning of new customers and applications based on Kubernetes using services on Kubernetes custom-resources (CRDs)
  • Platform monitoring with detailed metrics using Prometheus and Grafana
  • Development and management of a Developer portal to support the development and the integration of external and internal applications into the platform
  • Development of Sample-applications and support of partners working with the platform integration

Technologies:
.NET Core/C#
Angular
Kubernetes
Kubernetes Operators
IdentityServer
OAuth2
Google Cloud, GKE
PostgreSQL
Grav
SignalR

2008 – 2015 webix solutions GmbH

Starting as a working student in 2008 I continued working at webix until 2015 on various projects for multiple customers.

  • B2B Auctioning platform for refurbished hardware
  • Marketing platform for cashback campaigns
  • Stock exchange order management application
  • Stock exchange fraud detection rules
  • Certification software to support the process to certify the sustainability of buildings based on an editable set of rules

Technologies:
.NET, ASP.NET, C#
Entity-Framework
WPF
MSSQL
WCF (Windows Communication Foundation)
AngularJS

2009 Software Engineering Diploma

In 2009 I finished studying “Software Engineering” at the Stuttgart University.