09/02/2026 updated
100 % available
Freelance Streaming Data Engineer
Dilbeek, Belgium
Only remote
M.Sc. Computer Science - Software Languages & Engineering, Vrije Universiteit BrusselAbout me
As a software and data engineer, I build robust, scalable systems that process data at scale. My freelance work centers on stream processing architectures, workflow orchestration, and cloud‑native infrastructure using technologies like Kafka Streams, Airflow, Spark, and Kubernetes on AWS.
Apache AirflowCloud EngineeringData ArchitectureScalaEvent-driven ArchitectureApache SparkKubernetesApache FlinkAvroApache KafkaTerraformDomain Driven DesignAWS EKSDocker
Streaming Technologies
Expertise in Kafka, Kafka Streams, and Flink for building event-driven, real-time data processing systems at scale.
Cloud & Infrastructure
Proficiency in AWS, Kubernetes, Docker, and Terraform for deploying and managing cloud-native infrastructure and streaming applications.
Data Engineering
Strong background in Airflow, Spark, Snowflake, PostgreSQL, Redis, and Avro for building robust ETL pipelines and data platforms.
Scala & Java Development
Solid programming skills in Scala and Java, including functional programming paradigms, used extensively for stream processing and data pipeline development.
Python & SQL
Practical experience with Python and SQL for data engineering tasks, scripting, and ETL pipeline implementation.
Architecture Patterns
Knowledge of Domain-Driven Design, Event-Driven Architecture, Microservices, Hexagonal Architecture, and Data Mesh for designing scalable systems.
AWS Solutions Architecture
Certified AWS Solutions Architect Associate (valid until April 2028), with hands-on experience deploying workloads on AWS EKS and other AWS services.
Embedded & Linux Development
Experience with embedded Linux development in C and Python, combined with CI/CD pipelines and Docker containerization.
Digital Twins & R&D
R&D and prototyping experience for digital twins, including implementation of data contracts in Scala with Avro on Azure.
Expertise in Kafka, Kafka Streams, and Flink for building event-driven, real-time data processing systems at scale.
Cloud & Infrastructure
Proficiency in AWS, Kubernetes, Docker, and Terraform for deploying and managing cloud-native infrastructure and streaming applications.
Data Engineering
Strong background in Airflow, Spark, Snowflake, PostgreSQL, Redis, and Avro for building robust ETL pipelines and data platforms.
Scala & Java Development
Solid programming skills in Scala and Java, including functional programming paradigms, used extensively for stream processing and data pipeline development.
Python & SQL
Practical experience with Python and SQL for data engineering tasks, scripting, and ETL pipeline implementation.
Architecture Patterns
Knowledge of Domain-Driven Design, Event-Driven Architecture, Microservices, Hexagonal Architecture, and Data Mesh for designing scalable systems.
AWS Solutions Architecture
Certified AWS Solutions Architect Associate (valid until April 2028), with hands-on experience deploying workloads on AWS EKS and other AWS services.
Embedded & Linux Development
Experience with embedded Linux development in C and Python, combined with CI/CD pipelines and Docker containerization.
Digital Twins & R&D
R&D and prototyping experience for digital twins, including implementation of data contracts in Scala with Avro on Azure.
Experience
Professional experience5 - 10 years
Freelancer since2022
Languages
EnglishFluentFrenchGoodDutchNative speaker
Project history
Replacing legacy Spark batch pipelines with event-driven Kafka Streams applications in Scala for real-time user profile generation from Snowplow event streams. Developing stateful stream processors using the Kafka Streams DSL and Processor API. Building and maintaining an event-driven identity resolution service in Scala. Managing infrastructure with Terraform, deploying streaming applications to AWS EKS with Argo CD and batch workloads with Airflow.
Data engineering on Azure, building ETL pipelines in Scala and Python. R&D and prototyping for digital twins, implementing data contracts in Scala with Avro.
Built data platform with Kafka, Spark, Airflow, and Snowflake on AWS. Developed batch jobs in Scala Spark and a real-time streaming application in Flink.