Claudiu D.

• Angeführt die Migration von Finastras Pegasus-Plattform von Flink und Micronaut zu einer modernen Spring Bootbasierte Architektur.
• Refactored Legacy Module in saubere, modulare Java 17 Codebases, die Verbesserung der Wartbarkeit und die Reduzierung der technischen Schulden.
• Streamlined CI/CD Pipelines mit Maven und Sonar, Durchsetzung der Code-Qualität und automatisierte statische Analyse.
• Sicherte Datenkonsistenz und -leistung durch umfangreiche Regressionstests und API-Refactoring.
• eng mit DevOps zusammenarbeiten, um die Bau- und Deployment-Effizienz in verteilten Umgebungen zu optimieren.

• Verbesserte Backend-Funktionen für Qualcomms Edgewise RAN Service Automation Platform, die eine intelligentere, Cloud-basierte 5G-Orchestrierung ermöglicht.
• Entwickelte und modulare Dienste während des Übergangs zu einer Mikroservice-Architektur, wodurch die Skalierbarkeit verbessert wird.
• Unterstützung der Level 3 und Lösung komplexer Backend-Probleme, um die Aktualisierungs- und Betriebssicherheit zu gewährleisten.
• Implementierte asynchrone Kommunikation mit Kafka und ActiveMQ, was den Durchsatz der Verarbeitung erhöht.
• Containeranwendungen mit Docker und Helm Diagrammen für nahtlose Kubernetes Einsätze.

• Als Senior Java-Berater für verschiedene Client-Projekte zur Unterstützung von Design, Implementierung und Optimierung von Unternehmensanwendungen.
• Entwickelte Proof-of-Concept-Lösungen (POC) zur Validierung neuer architektonischer Ansätze und Technologie-Integrationen für Kundensysteme.
• Erstellte und gewartete Microservices mit Spring Boot und Apache Kafka, um Skalierbarkeit und Zuverlässigkeit zu gewährleisten.
• Implementierte RESTful APIs und unterstützte CI/CD Workflows, um die Integration zwischen verteilten Systemen zu vereinfachen.
• Teilnahme an Wartungs- und Funktionserweiterungsarbeiten, Verbesserung der Leistung und Stabilität in der Produktionsumgebung.
• Zusammenarbeit mit Cross-funktionalen Teams, um die besten Methoden in der Code-Qualität, Dokumentation und DevOps Ausrichtung mit Kubernetes zu gewährleisten.

• Entworfene und implementierte Backend-Funktionen für die Enterprise Druckerverwaltungsplattform von HP (HPI-HpOne).
• Führt ein 5-Personen-Entwicklerteam durch das gesamte SDLC, um die technische Anpassung und rechtzeitige Lieferung sicherzustellen.
• Deployed Services in AWS und integrierte S3 und Lambda zur skalierbaren Datenverarbeitung.
• Durchgeführte Code-Überprüfungen, optimierte Microservice-Leistung und geführte Entwickler über Best Practices.
• Koordiniert mit QA und DevOps um CI/CD zu rationalisieren und Deployment-Fehler zu reduzieren.

Cybereason is a cybersecurity firm offering endpoint protection and threat detection platforms for global enterprises.

• Developed a Proof of Concept for the User Management Service, centralizing user creation and role assignment.

• Implemented REST APIs with Spring Boot and built a Vaadin-based admin interface.

• Designed modular backend architecture to ensure easy scalability and integration with existing systems.

• Automated testing and deployment workflows with Jenkins and Docker.

Atos is a global IT services company providing digital transformation and enterprise software solutions.

• Maintained and extended financial data submission systems for the National Bank of Belgium.

• Implemented new business rules in Drools and automated document ingestion using Spring Batch.

• Delivered enhancements and bug fixes within tight regulatory timelines.

• Supported the migration of services to Kubernetes for improved scalability.

Evowise is a global software and marketing technology company providing cloud-based tools for communication and campaign automation.

• Designed a near-real-time event processing platform using Apache Flink Stateful Functions and Druid.

• Built management dashboards with Vaadin and integrated Redis caching for performance.

• Led the implementation of core backend modules and API integrations.

• Improved system responsiveness through async I/O and optimized event pipelines.

Regulaition Inc. develops compliance and regulatory software for banking and fintech organizations.

• Co-designed architecture for a regulatory compliance platform, enabling users to identify necessary licenses and regulations.

• Led a small development team throughout the implementation phase, ensuring code quality and delivery timelines.

• Developed core backend services using Spring Cloud, Drools, and JPA, deployed on Google Cloud.

• Created and maintained CI/CD pipelines with Docker and Maven.

All European Careers is a consultancy providing IT services to European institutions and public agencies.

• Maintained and enhanced SDMX-Tools, a platform used for standardized statistical data exchange among global institutions.

• Improved system stability and data consistency across MySQL and Oracle databases.

• Delivered bug fixes and enhancements according to Eurostat’s strict SLA requirements.

VisionGate is a biotechnology company developing 3D cell imaging solutions for early cancer detection.

• Migrated legacy Cell-CT 3D imaging platform from Java 5/AWT to Java 8/JavaFX.

• Introduced Maven and Jenkins CI/CD pipelines to modernize the build system.

• Improved modularization and separation of concerns for cleaner, more maintainable codebases.

• Mentored the internal team on modern Java and clean code practices.

IBM is a global technology leader offering consulting, software, and AI solutions.

• Provided Java EE technical leadership to onboard a new development team for the HomeCredit China project.

• Supported knowledge transfer and defined coding standards across teams in Romania and China.

• Assisted in building scalable enterprise modules for credit management systems.

Trivadis is a Swiss IT consultancy specializing in data, analytics, and application modernization.

• Developed the ECAB insurance management platform, modernizing legacy applications.

• Delivered the full dashboard module, including a custom chart component built on Vaadin Charts.

• Improved UI/UX and backend efficiency for reporting modules.

• Introduced Liquibase for version-controlled database migrations.

Trasys provides IT consultancy and systems integration for European institutions.

• Re-implemented the DG DEVCO Audit platform, migrating from ColdFusion to Java EE.

• Designed and implemented a complex business validation module using Drools.

• Contributed to frontend integration with Kendo UI and Bootstrap.

• Improved backend reliability and performance.

X3.Net is a German software company building enterprise communication platforms and distributed systems.

• Designed architecture and oversaw development for Appstack, a modular communication platform.

• Acted as a liaison between client stakeholders and the development team.

• Led system design with Spring, Camel, CXF, and ActiveMQ, ensuring scalability and interoperability.

• Conducted code reviews, enforced best practices, and mentored developers.

IBM Italy led the modernization of legacy ERP systems for clients across Europe.

• Re-engineered ACG Vision4, transitioning from COBOL to Java-based ERP architecture.

• Designed and maintained financial module components, improving reliability and maintainability.

• Produced technical design documents for offshore teams in India and coordinated cross-country collaboration.

• Developed Cognos reports and mentored new developers on Java methodologies.

• Traveled to Bangalore to train and support the offshore development team.

Tri-Pen Travelmaster offers corporate travel reporting platforms that integrate multiple data sources.

• Developed the Credit Card Data Load module to parse and validate data feeds from suppliers.

• Created stored procedures and SQL scripts for reporting and analytics.

• Improved automation of data ingestion workflows.

• Supported migration from flat-file systems to Oracle databases.

Finsiel Romania specialized in enterprise application development for Italian government institutions.

• Contributed to GISTA, a resource management system for Italy’s Department of Agriculture.

• Developed and maintained core modules and UI components.

• Participated in testing, debugging, and deployment of application updates.