Open to opportunities

Fabian Crabus

@fabiancrabus

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Seasoned Software Architect specializing in Java, Big Data, AI/ML, geospatial and IoT solutions.

Germany

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What I'm looking for

I seek a senior technical leadership role where I can architect scalable AI/Big Data/geospatial systems, lead engineering teams, drive product strategy, and deliver measurable business impact in an agile, collaborative environment.

I am a seasoned Software Architect with 20 years of professional experience and 15 years in project management, focused on delivering scalable, production-ready systems across logistics, AI, Big Data, geospatial data, and IoT.

I have led international projects and startups—defining technical architectures, driving AI- and IoT-enabled solutions, and building microservices-based platforms for real-time tracking, predictive analytics and large-scale data processing.

My work spans computer vision, NLP, stream and batch processing, and geospatial tooling; I combine deep hands-on expertise (Java, Python, Spark, Flink, Kafka, Postgres, GeoParquet, Pytorch/TensorFlow) with stakeholder management and agile delivery to align technical strategy with business goals.

I am recognized for scaling teams and systems, ensuring data quality and security, and delivering high-impact results in product and research contexts while mentoring engineers and steering cross-functional collaboration.

Experience

Work history, roles, and key accomplishments

Head of Development

Port Thessaloniki

Jun 2024 - Jul 2025 (1 year 1 month)

Led development of an AI- and IoT-enabled platform to monitor and optimize container flows, defined technical architecture, and delivered scalable microservices for real-time tracking and predictive analytics.

Java Quarkus IoT MQTT Tile38 PostgreSQL Docker Kubernetes Predictive Analytics Microservices

Head of Java Development

Next Logistics Ventures GmbH

Nov 2016 - Jun 2024 (7 years 7 months)

Directed architecture and technical strategy for a maritime chartering platform, building AI- and Big Data-driven systems for automation, computer vision, NLP, and large-scale geospatial data processing.

Java Apache Spark Kafka PostgreSQL PyTorch TensorFlow Docker React

Head of Development

Viaboxx GmbH

Feb 2009 - Jun 2016 (7 years 4 months)

Led development team focused on logistics and package automation, delivering Java-based backend systems and integrations to streamline operations and automation workflows.

Java Spring Boot JPA PostgreSQL Elasticsearch Apache Camel ActiveMQ Junit CI CD

Head of Development

agimatec GmbH

Jun 2006 - Feb 2009 (2 years 8 months)

Managed development for international package automation projects, designing and delivering enterprise Java systems and integration solutions to support operations.

Java J2EE Spring JPA PostgreSQL JMS Elasticsearch UML JMeter

Technical Lead

DHL

Jun 2003 - Mar 2006 (2 years 9 months)

Developed platform for parcel lockers (PACKSTATION), leading technical implementation of enterprise Java components and messaging integrations to support large-scale operations.