Software Engineer & Architect

4/2021 – 1/2022

Development of an identity service provider (SSO) based on Keycloak in an agile, autonomous and cross-functional team.
Extension of Keycloak by custom business process functionalities. Development of services for customer identification based on internal account identifiers including REST APIs for other services to handle operations related to customer data. Deployment of the artifacts with Helm on Kubernetes (AWS) using Concourse pipelines including automated tests.

.Net, .Net Framework (Microsoft), C#, Git, Java (allg.), JavaScript, Kafka, Kotlin, Kubernetes, NUnit, PostgreSQL

4/2019 – 3/2021

Development of a product enabling opticians to create individually tailored contact lens packages for customers which can then be ordered online.
Working in an agile, autonomous and cross-functional team. Deployment of the API backend and frontend with Helm on Kubernetes (AWS) using Concourse pipelines including automated tests. Integration into the company's new OpenID SSO. Developing product integrations using AWS MSK (Kafka). Introducing a Data Mesh to decentralize data accessibility using AWS S3.

.Net, .Net Framework (Microsoft), Amazon Web Services (AWS), Angular, ASP.NET, C#, Git, Kafka, Kubernetes, MongoDB, NUnit

3/2015 – 3/2019

Development of a service for orchestrating different processes of laboratory samples within their lifecycle in a cross-functional and agile team. Introducing CQRS to complement the existing DDD architecture of the service in order to better separate and process incoming operations for the batches and samples. Multiple integrations with other companies products via REST APIs and messaging queues in exchange with international development teams. Migration from Asp.Net to Asp.Net Core.

.Net, .Net Framework (Microsoft), Angular, ASP.NET, C#, Less, Microsoft SQL-Server (MS SQL), NUnit, Team Foundation Server (TFS)