freiberufler SCM Software Spezialist | Logistik, Transportation Management & eCommerce auf freelance.de

SCM Software Spezialist | Logistik, Transportation Management & eCommerce

zuletzt online vor wenigen Stunden
  • 80‐90€/Stunde
  • 51063 Köln
  • Europa
  • de  |  en  |  pt
  • 12.07.2025

Kurzvorstellung

IT-Allrounder, +20 Jahre Praxis in Web Applications (Full-Stack, Java/Spring Boot, PHP/Symfony, Python/Django), Debugging, Performance-Monitoring und DevOps-Konzepte. Als Profi biete ich schnell Hilfe und Unterstützung für jede Form von Software an.

Geschäftsdaten

 Gewerbetreibend
 Steuernummer bekannt
 Berufshaftpflichtversicherung aktiv

Qualifikationen

  • Full Stack Developer5 J.
  • Java (allg.)6 J.
  • Serveradministrator
  • Build-Tools
  • Docker2 J.
  • PHP
  • SAP Cloud Platform
  • Server-Monitoring
  • Softwareentwickler6 J.
  • Spring Framework3 J.

Projekt‐ & Berufserfahrung

Lead Software Engineer, Consultant with Customer, Owner
Wirefunk Observability, Köln
10/2024 – 7/2025 (10 Monate)
IT & Entwicklung
Tätigkeitszeitraum

10/2024 – 7/2025

Tätigkeitsbeschreibung

Wirefunk is a software solution designed to give development teams valuable insights into their running applications, whether they’re web frontends, backend systems, or API gateways for third-party clients.
* We have started with a solution to streamline the output of hundreds of log files into an easy-to-use data storage system with a simple GUI for monitoring, analysis and alerting.
* Developed a prototype to enhance API observability using Spring Boot, Micrometer, and OpenTelemetry, serving as a benchmarking tool for external REST APIs.
* Implemented modern GitHub pipelines to build the application as an optional GraalVM native image, packaged in a Docker container image using Buildpacks within the Spring Boot plugin.
* Additionally Github Dependabot was configured to keep the apps dependencies updated daily. Security updates were applied immediately. Openrewrite is used as well to keep some best practices on form and style of Classes, configuration files and code structure itself

Eingesetzte Qualifikationen

Full Stack Developer, Java (allg.), Kundenberater, Softwareentwickler, Spring Framework, Systemadministration (allg.)

Software Engineer/DevOps Support
Cubic Transportation Systems, Hamburg
10/2023 – 9/2024 (1 Jahr)
Transportation Management Systems
Tätigkeitszeitraum

10/2023 – 9/2024

Tätigkeitsbeschreibung

Cubic develops cloud-based transportation software with a vast range of functionalities, primarily generating QR codes for digital tickets used in metro, bus, and train services. Beyond ticket sales, the company provides CRM, identity management, accounting, invoicing, and other transportation-focused solutions. Its London-based branch powers Transport for London and parts of Dublin’s NTA.

* During a critical phase of a key project, the entire core team left for unknown reasons to me. I jumped in as an external all-round specialist to keep their main Java application operational and working
* Beyond technical challenges, I coordinated daily with clients and partners promoting a mobile app that provided pay-as-you-go tickets, real-time schedules for buses, metros, and trains, and other services, that are already in use by thousands of commuters and fully reliant on Cubic's infrastructure.
* Filter issues and making smart decisions about what had to be patched, refactored or updated first. Reviewing and simplifying over-engineered parts of the application. Discuss and define tasks according to team-skills.
Took the initiative to refactor a large GitHub repository structure, creating fast CI-pipelines and reducing build times from 20minutes to 3minutes. * Simply by working hard to understand the Software itself and its build tool configuration. CD was a topic I pushed as well, it was too challenging and too much as a step for me, the team and the company
* Deployment cycle was more or less every 3 months by the older team, which we eventually reduced to every 2-3 weeks
* Due to a lack of log-monitoring, I introduced an improvised possibility for log-collection/log-analysis with a modified ELK-Docker solution. FluentD was used instead of Logstash due to better resource efficiency
* Led efforts to enhance Observability with Micrometer and Datadog. Micrometer had to be configured manually due to lack of native Apache Karaf support.
* Regularly traveled to Hamburg to facilitate team collaboration and team morale on critical tasks

Eingesetzte Qualifikationen

Full Stack Developer, Java (allg.), Spring Framework, Linux-Systemadministrator, Softwareentwickler

Lead Software Engineer
NLP-based Rating Analysis Prototype, Lissabon
11/2022 – 7/2023 (9 Monate)
IT & Entwicklung
Tätigkeitszeitraum

11/2022 – 7/2023

Tätigkeitsbeschreibung

* Co-developed a prototype application for analyzing and categorizing text-based ratings (e.g., restaurant reviews) using NLP techniques.
* Helped validate the concept by extracting key themes from large-scale user reviews to provide structured insights.
* Pitched the project to investors, securing minor funds for further development.
* Major contribution to the technical foundation before relocating from Lisbon to Cologne in mid-2023

Eingesetzte Qualifikationen

Java (allg.), Spring Framework, Natural Language Processing, Serveradministrator, Softwareentwickler

Senior Software Engineer (Festanstellung)
Loggi Techconnect, Lissabon
1/2021 – 9/2022 (1 Jahr, 9 Monate)
Logistikdienstleister
Tätigkeitszeitraum

1/2021 – 9/2022

Tätigkeitsbeschreibung

* Joined Loggi, a Brazilian logistics unicorn valued at over $1 billion after its Series F funding, to support finance automation for large-scale B2B delivery operations.
* Helped streamline finance-related data workflows, integrating them into an SAP-based BI system to reduce data loss and improve efficiency.
* Analyzed and refactored legacy code (Python/Kotlin), collaborated on workflow optimizations, and debugged existing solutions.
Introduced an adapted sprint model and task planning based on flavoured
* SCRUM principles, especially planning and reviews.
Contributed to the technical foundation for Loggi’s planned 2023 US IPO.

Eingesetzte Qualifikationen

Full Stack Developer, Java (allg.), Kotlin, Python, SAP Applications, Scrum, Softwareentwickler

Senior Software Engineer
Neozo GmbH & Co KG, Köln
1/2019 – 10/2021 (2 Jahre, 10 Monate)
IT & Entwicklung
Tätigkeitszeitraum

1/2019 – 10/2021

Tätigkeitsbeschreibung

I helped this company as an external professional to gain speed in consulting their main clients, which were specialised in e-commerce and logistics.
* Designed and developed a supplier management tool from scratch to support a client specializing in office equipment, furniture, and maintenance services.
* Built a neural network-based prototype to automatically categorize new products by description texts for seamless online shop integration.
* Successfully contributed to business expansion, enabling Neozo to extend its collaboration with the client.
* Implemented solutions using Java, Spring, and Freemarker/Thymeleaf for server-side frontend rendering.
* Contributed to modernizing a quotation software for a logistics company specializing in ocean, air, and road transport.
* Replaced manual, time-consuming workflows with a fully digital solution, streamlining quotation creation.
* Automated data retrieval (previously done via Excel and external databases) and integrated PDF generation for client-ready offers.

Eingesetzte Qualifikationen

Spring Framework, Docker, Full Stack Developer, Java (allg.), Softwareentwickler

Ausbildung

University of Applied Sciences Dortmund
B.Sc Computer Science
2013
Dortmund
University of São Paulo
B.Sc Computer Science
2013
São Paulo

Über mich

Seit über 20 Jahren programmiere ich als Team-Mitglied, Projekt-Lead oder Partner erfolgreiche Business-Software.

Branchenwissen:
Logistik (5 Jahre)
Transportmanagement (2 Jahre)
eCommerce (10+ Jahre)
Computer Vision (5+ Jahre)
Sportmarketing und Data-Driven Software (10+ Jahre)

Softwareentwicklung und App Prototyping:
Umfassende Erfahrung in der Entwicklung, Qualitätssicherung, Fehlersuche und Optimierung von Java-basierten Webanwendungen. Enge Zusammenarbeit mit Projekt- und Produktmanagement bei der Entwicklung von Prototypen und Proof-of-Concepts.

Architektur & DevOps-Beratung:
Beratung zu Softwarearchitekturen, Weiterentwicklung bestehender Anwendungen, Aufbau von Continuous-Integration-Pipelines sowie automatisierten Build- und Deployment-Umgebungen.

Agile Arbeitsmethoden:
Sicherer Umgang mit SCRUM, Kanban, Scrumban und individuellen Workflow-Varianten. Anpassung von JIRA an konkrete Team- und Projektbedürfnisse.

Problemlösung & Kommunikation:
Lösungsorientiertes Vorgehen bei technischen Herausforderungen – durch strukturierte Analyse, klare Kommunikation und praxistaugliches Task-Management. Erfahren im Umgang mit unterschiedlichen Meinungen, Zielkonflikten und hitzigen Diskussionen.

Business und Stakeholder-Kommunikation:
Fähigkeit, geschäftliche Anforderungen zu analysieren, technische Anforderungen mitzugestalten und technische Diskussionen mit Stakeholdern auf Augenhöhe zu führen.

Weitere Kenntnisse

Internationale Projekterfahrung in Brasilien, Portugal, Spanien und Deutschland.

Sprachen:
Deutsch (Muttersprache)
Englisch (fließend),
Portugiesisch (fließend, Brasilien)

Flexibel einsetzbar:
Offen für hybride Modelle, Auslandsaufenthalte oder projektbezogenes Reisen

Persönliche Daten

Sprache
  • Deutsch (Muttersprache)
  • Englisch (Fließend)
  • Portugiesisch (Fließend)
Reisebereitschaft
Europa
Arbeitserlaubnis
  • Europäische Union
Profilaufrufe
71
Alter
38
Berufserfahrung
23 Jahre und 6 Monate (seit 01/2002)
Projektleitung
15 Jahre

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