Description

Senior Software Engineer with a focus on Java, Spring Boot, and Angular, experienced in enterprise environments and distributed teams. I work across the full delivery cycle: architecture and API design, implementation, testing, and CI/CD. Recent work includes modernization of legacy applications (JSF/RichFaces to PrimeFaces), persistence-layer upgrades (Hibernate 5 to 6 with JPQL), and building microservice-based solutions using Docker/Kubernetes and SQL (PostgreSQL / MS SQL Server). I value clean interfaces, maintainable code, and pragmatic delivery.

Industry field of expertise

Languages

English
Native or bilingual
German
Native or bilingual

Workplace preferences

Remote only

Primarily works remotely

Bertelsmann
Migration of RichFaces application to PrimeFaces
PRESS AND MEDIA
July 2024 - April 2026 (1 year and 9 months)
Baden-Baden, Germany
Project objective: Migration of a Bertelsmann intranet application from JSF to Angular/Java with microservices, integration into Riverty’s existing “Merchant Portal”, connection to Google Gemini for AI-supported customer analyses

Technologies: Angular (V20), Jakarta EE, Spring Boot 3, Java 24, PrimeFaces JSF, Jenkins, Bitbucket, JPA, Kafka, microservices, Hibernate, Maven, REST, Git, Oracle, OpenSearch, Swagger/OpenAPI, Redis, Docker, Kubernetes, Consul, Keycloak, Pact, Flyway, IntelliJ, Jira, Confluence, Google Gemini, Vertex AI

Role: Fullstack Developer (team size: 10 employees)

Project location: Baden-Baden, Germany (100% remote, interaction via VPN and MS Teams)

Key project challenges:
Porting a historically grown application, approximately 20 years old, to Angular/Java with microservices
Integration into an existing Europe-wide company portal
AI integration for customer profile analyses
Distributed team across Austria, Germany, the Netherlands, and Estonia, with English as the project language
Apache Kafka JavaEE Microservices REST
Allianz Technology
Migration of insurance application to modern platform
BANKING AND INSURANCE
January 2020 - June 2024 (4 years and 5 months)
Vienna, Austria
Project objective: Migration of an existing insurance application as well as mainframe batch jobs to a Java-based platform

Technologies: Spring Boot, Java 11 & 17, Kotlin, JPA, Hibernate, Elasticsearch, Maven, SOAP, REST, Swagger/OpenAPI, Angular, Bootstrap, React, Kafka, Microservices, Jenkins, GitLab, Docker, Kubernetes, Jira, Confluence, OWASP, Flyway, reflection, IntelliJ IDEA; Mainframe: Micro Focus, PL/I, JCL, CICS

Role: Senior Developer, Architect (team size: 10 FTE)

Project location: Vienna, Austria

Key challenges: Legacy insurance system with a multi-layer backend architecture and a mainframe-based legacy platform; hands-on work in both Java and mainframe development (PL/I). Very large data volumes requiring performance optimizations, plus high security requirements—therefore analysis and security measures in line with OWASP were necessary.
PL/I Mainframe Java SQL IBM Db2
Erste Group Bank AG
Digital Banking intranet application
BANKING AND INSURANCE
September 2017 - December 2019 (2 years and 3 months)
Vienna, Austria
Project objective: Implementation of an intranet application for Erste Group in the area of corporate credit assessments; integration into the Erste Group portal; integration with existing proprietary financial data services

Technologies: Spring Boot, Java 11, Kotlin, Angular, Bootstrap, React, Kafka, microservices, Jenkins, Bitbucket, JPA, Hibernate, Maven, REST, Git, Oracle, PostgreSQL, Elasticsearch, Docker, Kubernetes, IntelliJ IDEA, Jira, Confluence

Role: Developer (team size: 10 FTE, incl. an Indian development team)

Project location: Vienna, Bangalore (collaboration via Citrix and Microsoft Teams)

Key challenges: Greenfield implementation within Erste’s proprietary IT landscape with many external systems; geographically distributed team (Vienna ↔ India) with English as the project language
Spring boot JavaEE Microservices REST Angular

Check out Helmut's experience

Be the first to recommend Helmut

Help this freelancer shine by sharing your experience working together.

Agatha Frydrych

Backend Java Software Engineer

4.7

(3)

Baptiste Duhen

Fullstack developer

4.6

(4)

Amed Hamou

Senior Lead Developer

(2)

Audrey Champion

Web developer

4.3

(3)

Signup to reveal

Higher Technical College Diploma (HTL)
HTL Wien 22 (HTBLVA Wien 22), Vienna, Austria
1993
Technical secondary education (HTL/Matura/techn.Abitur) with focus on engineering/IT fundamentals.

Helmut Kirchweger

Senior Software Engineer (Java/Spring/Angular)

About Helmut

Experience

Recommendations

These freelancer profiles also match your criteria

Education

Skill set

Categories