Freelancer profile translated to English.

Description

Passionate and communicative software developer with strong conceptual and analytical skills, who is also comfortable in rough seas and not afraid of subject areas, management, product owners, and customers.

Industry field of expertise

Languages

German
Native or bilingual
English
Fluent

Workplace preferences

Can work on-site

Düsseldorf (up to 50km)

Stahlgruber GmbH
On Malt
Java Full Stack Developer: Connecting B2B Customers to New Order Interface
AUTOMOBILE
March 2025 - December 2025 (9 months)
München, Germany
Developing a Microservice for Ordering Vehicle Parts
Architecture for the authentication process with AWS Cognito and ApiGee
Backend development of REST services
API conversion using ApiGee API Management
Database setup with Liquibase
Supporting Customers integrating the new order interface
developer support for customers interface integration
preparation of test and development data for over 200 customers
Spring Boot Spring Data OpenAPI AWS Apigee
DGUV
Java/Spring Lead Developer
PUBLIC SECTOR
November 2022 - December 2024 (2 years and 2 months)
St. Augustin, Germany
eGKV - Microservice for digital cost estimates and billing of medical aids

Architecture and Lead Software Development for Spring Boot, Hibernate (JPA) with Oracle DB
Backend development of REST Services
Migration from Oracle IAM to Azure Cloud AD B2C for identity management, API Gateway and Azure Key Vault
Development of Infrastructure as Code with Terraform for Azure
Development of CI/CD with Bamboo
Database setup with Liquibase
(Spring Boot, Spring Data, OpenApi, Azure, Java 21, REST, Hibernate, Oracle, Bamboo CI/CD)
Microsoft Azure Terraform Spring Boot Angular Hibernate
DGUV
Java/Spring Lead Developer
PUBLIC SECTOR
November 2022 - December 2024 (2 years and 2 months)
St. Augustin, Germany
EESSI - Digital foreign invoices
Development of data transfer in Redhead Fuse/Apache Camel
Connection of the GraphQL interface to Redhead Fuse
Implementation of signature and encryption with Azure Key
Store
(Java 17, GraphQL, Azure, IntelliJ, Apache Camel or Redhead Fuse)
GraphQL Apache Camel Microsoft Azure Java 17 Azure Key Vault