Software Developer, Subproject Manager, Linux Admin

Worked as a Perl programmer for a bank.

Worked as a Senior Linux Administrator (RHEL 7/8), handling Ansible, release/deployment management, staging and monitoring with CheckMK.

Planning and creating warehousing software for Android tablets using Xamarin, C#, and .NET.

• Planning and creating a web application to manage employees on temporary assignment. The client wanted software to manage his employees who were placed with industrial companies on temporary assignment. This included calculating hourly rates and ensuring and monitoring compliance with legal requirements.
• Setting up the required LAMP environment with Ubuntu, including customer support and server environment maintenance.
• As-is analysis.
• Design and implementation of the database structure.
• Programming.
• Tools used: Ubuntu Linux as the server operating system, MariaDB as the database management system, PHP as the programming language, Yii2 as the framework.

• Planning and creating a customized inventory management system. The client was using an outdated custom solution that increasingly led to data inconsistencies and was no longer supported by newer operating systems.

• In the months before the project was commissioned, the client was assisted in trying to find a suitable standard software on the market. Since the requirements were too specific for standard software, the decision was made to develop a custom solution.

• At the start of the project, an on-site analysis of the business processes was carried out. The insights were coordinated, revised, and optimized with the client. The program was designed according to the MVC principle to ensure maximum flexibility and extensibility.

• As-is analysis.

• Project management.

• Leading the development team.

• Design and implementation of the database structure.

• Programming.

• Employee training.

• Tools used: Microsoft Server 2016 as the server operating system, Microsoft SQL Server as the database management system, Visual Studio C# as the development environment, .NET as the framework, Dapper as the Object Relational Mapping (ORM), Perl for interface programming and automation jobs on the Linux server.

Planned and created a web application for tire storage management using PHP (Yii/PHP/MySQL).

Planned and created a web application for managing applicant profiles using PHP (Yii framework), as well as an online application.

Planning and development of a desktop application in C# for configuring Wi-Fi receivers.

Interface creation in Perl for connecting a Java community to an Oracle database server via SOAP.

Customizing and programming of the OTRS ticket system for integration with the wireless access gateway solution.

• Maintenance and customization of internal administrative software based on FML, Perl, and C++ for recruiting new staff and sending informational materials. Over the years, this software was extended with various interfaces.

• Integration of an online community via XML-RPC web services, including generating access credentials and managing the activation process for new users.

• Integration with a Lotus Notes application to manage applicant interviews.

• Sending data to SAP.

• Tasks included not only implementing interfaces, but also planning and design, as well as coordinating with the relevant contacts of other systems. Involved in planning and implementing the replacement of the system with an SAP-based solution.

• As-is analysis.

• Technical project management.

• Interface design.

• Programming.

• Tools used: Linux as server operating system, Oracle as database management system, FML and C++ as programming languages for the administrative software, Perl as programming language for interfaces and automation jobs.

• Maintenance and further development of a time tracking tool in FML.
• Maintenance and further development of the Orca kernel and its own programming language FML in C/C++.

Creating various form servers for online ordering of business cards with Zope.

Programming inventory management software for craftsmen with Python/wxWindows.

Developing various database applications with Borland C++ Builder and Visual Basic. Used MS Access and MS SQL Server.