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Marius HohmannMH

Marius Hohmann

Senior Full-Stack Java Developer with AI Expertise

€700/day
Pforzheim, DE
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Marius

I am a Full-Stack Java Developer with over 8 years of experience in developing, modernizing, and maintaining sophisticated enterprise software. My focus is on Java, Spring Boot, Hibernate, REST interfaces, SQL databases, and modern frontend/UI solutions.

In addition to classic software development, I am intensively involved in AI-powered development and productively use modern AI tools to make analysis, architecture, implementation, testing, documentation, and code reviews significantly more efficient. This allows me to structure projects faster, implement prototypes quickly, and systematically modernize existing software.

I am particularly strong in combining solid software architecture with new technologies: I develop robust backend systems, integrate interfaces, optimize existing applications, and design AI-related solutions such as LLM integrations, RAG-based knowledge assistants, AI agent workflows, and intelligent automations.

In my previous projects, I have worked for both medium-sized businesses and larger companies - in areas such as cost calculation, industrial image processing, process management, and B2B integration. I enjoy taking responsibility, quickly familiarizing myself with complex business domains, and delivering pragmatic, maintainable solutions with real business value.

I particularly support companies in modernizing existing Java applications, building new full-stack solutions, integrating AI functions, and implementing software projects more efficiently through AI-powered development.
  • German

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • NORBERT HEINZ CONSULTING GmbH & Co. KG
    Re-implementation and Modernization of Complex Cost Calculation Software
    CONSULTING AND AUDITS
    April 2022 - Today (4 years and 4 months)
    Karlsruhe, Germany
    Responsible for the technical and functional further development of an existing application: modernization of the architecture, update to Java 17, introduction of Hibernate and Spring, optimization of database communication, and visual and functional revision of the application.

    Additionally, productive use of AI-assisted development processes for faster analysis, conception, implementation, test support, documentation, and quality assurance. Development of modern solution approaches for complex business logic, data structures, and UI processes.

    Focus areas: Java 17, Spring, Hibernate, JavaFX, REST, SQL, MySQL, Oracle DB, Git, Docker, AI-assisted Development
    Java 17 MySQL Spring Hibernate JavaFX
  • Larivière Gesellschaft für digitale Präsentationssysteme mbH
    Lead Full Stack Java Developer
    DIGITAL AND IT
    April 2020 - April 2022 (2 years)
    Bremen, Germany
    Implementation of a software solution for image acquisition and processing of images in the industrial "DICONDE" image format. Connection of hardware to the newly implemented software. Data backup on a local MySQL database as well as on a cloud DB.
    Java GitHub Maven Spring Hibernate
  • Seeburger AG
    BPEL Process Designer
    SOFTWARE PUBLISHING
    April 2019 - April 2020 (1 year)
    Bretten, Germany
    Junior developer responsible for the further development of the BPEL "Standard Solution". Main activity: automation and optimization of digital processes.
    BPMN 2.0 Java Spring Eclipse Seeburger Workflow Designer

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Education

  • Bachelor of Science in Business Informatics
    Pforzheim University of Applied Sciences
    2017

Skill set

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