Freelancer profile translated to English.

Description

I am an experienced full-stack software developer and IT enthusiast with extensive knowledge in development, infrastructure, web hosting, and IT security. From IT consulting to custom software development, I offer a wide range of IT services:

Skills and Knowledge

Software Development:

Frontend:

AngularJS
ReactJS
NextJS
HTML, CSS
JavaScript, TypeScript

Backend:

NodeJS
ExpressJS

C, C++, C#
Java

DevOps:

Continuous Integration/Continuous Deployment (CI/CD)
Containerization with Docker, Containerd, Pacman
Orchestration with Kubernetes and Docker Swarm

Security:

Firewalls
IDS, IPS
Network Security
Digital Forensics
Security in Development
Management:
Version Control with GIT
Usage of GitHub and GitLab
Agile Project Management with Scrum

Other:

Web hosting in the classic sense
Server Administration
Server Hardening
Database Management
Cost Optimization
Troubleshooting

My Goal

With my passion for technology and my broad expertise, I strive to develop innovative and efficient solutions that promote your business success. I look forward to working with you and making your projects a success.

Industry field of expertise

Languages

German
Native or bilingual

Workplace preferences

Remote only

Primarily works remotely

IAS Bonn GmbH
Setup and Administration of an Open-Source ERP System
DIGITAL AND IT
December 2024 - Today (1 year and 8 months)
Bonn, Germany
As part of this project, I implemented and continuously administer the open-source ERP system Dolibarr to efficiently map the company's core business processes.

Tasks and Services:
• Installation and Configuration:Setup of Dolibarr and adaptation of the environment to company requirements.

• Module Management:Configuration and activation of necessary modules for comprehensive functionality.

• Implementation of Business Processes:

◦ Accounting: Mapping of financial transactions and management of company finances.

◦ Customer Management: Maintenance and organization of customer data and CRM functionalities.

◦ Employee Management: Recording and management of employee data and internal processes.

◦ Invoice Generation: Automated creation and tracking of invoices.

◦ Products and Services: Management of the product and service portfolio.

◦ Project Management: Planning and monitoring of projects and resource management.

◦ Ticketing System: Introduction of a system for processing and tracking customer inquiries and internal tasks.

Through the introduction of Dolibarr, the company was able to digitize its processes, increase efficiency, and create a central platform for data and workflow management.
ERP Systems dolibarr OpenSource Kubernetes
IAS Bonn GmbH
Installation and Administration of a Nextcloud Instance
DIGITAL AND IT
April 2023 - Today (3 years and 4 months)
Bonn, Germany
In this ongoing project, I have implemented and administer a Nextcloud instance in a Kubernetes cluster for productive use within the company. This solution replaces Microsoft SharePoint and offers advanced features for data management and collaboration.

Tasks and Services:
Installation and Configuration:Implementation and operation of a Nextcloud instance in a scalable Kubernetes environment.

Migration:Replacement of Microsoft SharePoint with Nextcloud, including seamless data transfer.

Security and Compliance Features:
Setup of file labels for the implementation of retention policies.
Automatic labels based on patterns and regular expressions.

Single Sign-On (SSO):Integration of SSO using OpenID Connect (OIDC) for seamless user login.

Calendar Management:Setup and management of calendars and their synchronization with various clients.

With this solution, the company has been able to optimize collaboration and data management, meet security requirements, and create a user-friendly, central platform for organization.
Nextcloud Single Sign On OIDC Retention Policy Data privacy
IAS Bonn GmbH
Setup and Administration of a Central Authentication Solution
DIGITAL AND IT
December 2024 - Today (1 year and 8 months)
Bonn, Germany
In this project, I successfully set up aFusionAuthinstance in aKubernetes Clusterto provide a centralauthentication solutionfor the company.
Tasks and Services:

Implementation of Single Sign-On (SSO):Integration of SSO into various internal systems to ensure a seamless user experience.

User and System Administration:Setup and ongoing management of users, roles, and access permissions.

System Administration:Ensuring stable and performant operation of the authentication solution, as well as regular maintenance and updates.

This solution not only enables the company to have consolidated and secure user management but also reduces administrative effort and increases IT security through central control.
FusionAuth SSO OIDC System administration