Luis Martin Schick

• Founded VertexWare OÜ to build custom business software for small and mid-sized companies.
• Build reporting, data migration, and process automation, plus internal tools that connect existing systems.
• Modernize legacy Java applications without full rewrites.
• Apply language models to messy business input, with validation and human review built in.
• Run client work end to end, from the first call to handover.

• Focused on SIB-BW2, a street object management system for the German government.
• Developed a data migration tool to move data from the legacy system in close collaboration with stakeholders.
• Led the upgrade effort from Java 8, Karaf, and legacy tooling to Java 21 and Spring Boot.
• Implemented most of the reporting functionality from the ground up.
• Handled major parts of technical client communication with State Governments and co-led documentation as one of only two German speakers.
• Streamlined database operations across four different databases while maintaining high software quality.

• Created, communicated, and managed project plans.
• Delivered software changes based on specific design specifications.
• Worked continuously with stakeholders and users to meet expectations.
• Analyzed and designed new systems and applications.
• Redeveloped the resource ordering system, designed and implemented a permissions system for 500 employees, and implemented IATF16949 for the quality control department.

• Handled high-risk situations with calm, deliberate decision-making.
• Completely restructured the brigade IT infrastructure.
• Delivered a full modernization of old, undocumented infrastructure.

Government street object platform modernization

European Dynamics - SIB-BW2 for German state authorities

Contribution: Led major upgrade work from legacy Java 8 and Karaf-era technology toward Java 21 and Spring Boot, while also driving reporting features and technical communication.

Outcome: Improved maintainability, modernized the engineering stack, and helped keep delivery aligned with technical and client expectations.

Java 21 // Spring Boot // Reporting // Migration // Stakeholder Communication

Legacy-to-new-system data migration tooling

Enterprise migration workflow with multiple stakeholders and strict data expectations

Contribution: Designed and built a dedicated migration tool, translating complex data rules into a practical workflow that supported smooth cutover planning.

Outcome: Reduced migration friction, improved confidence in data transitions, and created a more reliable bridge between legacy and modern systems.

Java // SQL // Data Migration // Validation // Process Design

Permissions and internal systems redesign at scale

Kleiberit Klebstoffe GmbH

Contribution: Redesigned core internal applications, including a new permissions system for roughly 500 employees and the redevelopment of resource ordering workflows.

Outcome: Delivered clearer access control, better internal tooling, and systems that matched operational needs more closely.

JavaScript // SQL // Permissions // Internal Tools // Business Process Design